Kenji Uchino – författare

Piezoelectric materials produce electric charges on their surfaces as a consequence of applying mechanical stress. They are used in the fabrication of a growing range of devices such as transducers (used, for example, in ultrasound scanning), actuators (deployed in such areas as vibration suppression in optical and microelectronic engineering), pressure sensor devices (such as gyroscopes) and increasingly as a way of producing energy. Their versatility has led to a wealth of research to broaden the range of piezoelectric materials and their potential uses. Advanced piezoelectric materials: science and technology provides a comprehensive review of these new materials, their properties, methods of manufacture and applications.After an introductory overview of the development of piezoelectric materials, Part one reviews the various types of piezoelectric material, ranging from lead zirconate titanate (PZT) piezo-ceramics, relaxor ferroelectric ceramics, lead-free piezo-ceramics, quartz-based piezoelectric materials, the use of lithium niobate and lithium in piezoelectrics, single crystal piezoelectric materials, electroactive polymers (EAP) and piezoelectric composite materials. Part two discusses how to design and fabricate piezo-materials with chapters on piezo-ceramics, single crystal preparation techniques, thin film technologies, aerosol techniques and manufacturing technologies for piezoelectric transducers. The final part of the book looks at applications such as high-power piezoelectric materials and actuators as well as the performance of piezoelectric materials under stress.With its distinguished editor and international team of expert contributors Advanced piezoelectric materials: science and technology is a standard reference for all those researching piezoelectric materials and using them to develop new devices in such areas as microelectronics, optical, sound, structural and biomedical engineering.Provides a comprehensive review of the new materials, their properties and methods of manufacture and applicationExplores the development of piezoelectric materials from the historical background to the present statusFeatures an overview of manufacturing methods for piezoelectric ceramic materials including design considerations

Advanced Piezoelectric Materials: Science and Technology, Second Edition, provides revised, expanded, and updated content suitable for those researching piezoelectric materials or using them to develop new devices in areas such as microelectronics, optical, sound, structural, and biomedical engineering.

Three new chapters cover multilayer technologies with base-metal internal electrodes, templated grain growth preparation techniques for manufacturing piezoelectric single crystals, and piezoelectric MEMS technologies. Chapters from the first edition have been revised in order to provide up-to-date, comprehensive coverage of developments in the field.

Part One covers the structure and properties of a range of piezoelectric materials. Part Two details advanced manufacturing processes for particular materials and device types, including three new chapters. Finally, Part Three covers materials development for three key applications of piezoelectric materials.

Dr. Kenji Uchino is a pioneer in piezoelectric actuators, Professor of Electrical Engineering at Penn State University, and Director of the International Center for Actuators and Transducers. He has authored 550 papers, 54 books and 26 patents in the ceramic actuator area.

Features an overview of manufacturing methods for a wide range of piezoelectric materials Provides revised, expanded, and updated coverage compared to the first edition, including three new chapters Suitable for those researching piezoelectric materials or using them to develop new devices in areas such as microelectronics, optical, sound, structural, and biomedical engineering

After Uchino’s introduction of a new terminology, ‘Micromechatronics’ in 1979 for describing the application area of ‘piezoelectric actuators’, the rapid advances in semiconductor chip technology have led to a new terminology MEMS(micro-electro-mechanical-system) or even NEMS (nano-electro-mechanicalsystem) to describe mainly thin film sensor/actuator devices, a narrower area of micromechatronics coverage. New technologies, product developments and commercialization are providing the necessity of this major revision. In particular, the progresses in high power transducers, loss mechanisms in smart materials, energy harvesting and computer simulations are significant. New technologies, product developments and commercialization are providingthe updating requirement for the book contents, in parallel to the deletion of oldcontents.Various educational/instructional example problems have been accumulated, which were integrated in the new edition in order to facilitate the self-learning for the students, and the quiz/problem creation for theinstructors.Heavily revised topics from the previous edition include: high power transducers, loss mechanisms in smartmaterials, energy harvesting and computer simulations New technologies, product developments and commercialization helped shape the updated contents of this book where all chapters have been updated and revised.This textbook is intended for graduate students and industrial engineers studying orworking in the fields of electronic materials, control system engineering, opticalcommunications, precision machinery, and robotics. The text is designed primarilyfor a graduate course with the equivalent of thirty 75-minute lectures; however, it isalso suitable for self-study by individuals wishing to extend their knowledge in thefield.

As one of the pioneers of "Piezoelectric Actuators", I have contributed to the commercialization of various products for over 45 years, including million-selling devices, micro-ultrasonic motors for smart-phone camera modules by Samsung Electromechanics, piezoelectric transformers for backlight inverters by Apple laptops, multilayer PZT actuators for diesel injection valves by Denso Corporation, and piezoelectric energy harvesting modules for Programable Air-Burst Munition by the US Army. During the development period for "piezoelectric actuators and transformers," I found that the bottleneck for device miniaturization was heat generation under a high-power drive condition. Thus, in parallel to the piezo-actuator developments, I have been developing various high-power density piezo-ceramic materials with the loss mechanism clarification. Hence, I considered that it was time to organize a textbook based on the previous studies, including my materials development philosophy to stimulate younger generations to reach to the energy density of up to 100 W/cm3 in the future. Increasing efficiency and saving energy and space (compactness) are one of the important approaches in this 21st-century "sustainable society."High-Power Piezoelectrics and Loss Mechanisims introduces the theoretical background of piezoelectrics, electromechanical phenomenology, loss mechanisms, practical materials, device designs, drive and characterization techniques, and typical applications, and looks forward to the future perspectives in this field. This book is NOT an overall review of this area, but it focuses on important and basic ideas under my development philosophy to understand how to design and develop high-power piezoelectric materials and devices.This textbook is designed for self-learning by the reader aided by the availability of:• Chapter Essentials – Summary for quick memory recovery• Check Points – Answers are provided in the Appendix• Example Problems – To enhance the reader’s understanding with full, detailed solutions• Chapter Problems – For the final exam or further consideration

As one of the pioneers of "Piezoelectric Actuators", I have contributed to the commercialization of various products for over 45 years, including million-selling devices, micro-ultrasonic motors for smart-phone camera modules by Samsung Electromechanics, piezoelectric transformers for backlight inverters by Apple laptops, multilayer PZT actuators for diesel injection valves by Denso Corporation, and piezoelectric energy harvesting modules for Programable Air-Burst Munition by the US Army. During the development period for "piezoelectric actuators and transformers," I found that the bottleneck for device miniaturization was heat generation under a high-power drive condition. Thus, in parallel to the piezo-actuator developments, I have been developing various high-power density piezo-ceramic materials with the loss mechanism clarification. Hence, I considered that it was time to organize a textbook based on the previous studies, including my materials development philosophy to stimulate younger generations to reach to the energy density of up to 100 W/cm3 in the future. Increasing efficiency and saving energy and space (compactness) are one of the important approaches in this 21st-century "sustainable society."High-Power Piezoelectrics and Loss Mechanisims introduces the theoretical background of piezoelectrics, electromechanical phenomenology, loss mechanisms, practical materials, device designs, drive and characterization techniques, and typical applications, and looks forward to the future perspectives in this field. This book is NOT an overall review of this area, but it focuses on important and basic ideas under my development philosophy to understand how to design and develop high-power piezoelectric materials and devices.This textbook is designed for self-learning by the reader aided by the availability of:• Chapter Essentials – Summary for quick memory recovery• Check Points – Answers are provided in the Appendix• Example Problems – To enhance the reader’s understanding with full, detailed solutions• Chapter Problems – For the final exam or further consideration

In the last few decades the applications of piezoelectrics to sensors have witnessed a dramatic acceleration and new devices and materials have been discovered. Some of the highlights include electrostrictive materials for positioners, relaxor-normal ferroelectric single crystals with very high electromechanical couplings for medical transducers, thin/thick PZT films for microelectromechanical systems, starting from a sophisticated chemical technology, and multilayer actuators fabricated by a cofiring technique. All will make a remarkable industrial impact in the 21st century.

The field of mechatronics using piezoelectric and electrostrictive materials is growing rapidly with applications in many areas, including MEMS, adaptive optics, and adaptive structures. This text provides in-depth coverage of the theoretical background of piezoelectric and electrostrictive actuators, practical materials, device designs, drive/control techniques, typical applications, and future trends in the field. Industry engineers and academic researchers in this field should find this text a source of scientific information, practical details, and references. In the classroom, this book may be used for graduate level courses on ceramic actuators.

ATILA Finite Element Method (FEM) software facilitates the modelling and analysis of applications using piezoelectric, magnetostrictor and shape memory materials. It allows entire designs to be constructed, refined and optimized before production begins. Through a range of instructive case studies, Applications of ATILA FEM software to smart materials provides an indispensable guide to the use of this software in the design of effective products.Part one provides an introduction to ATILA FEM software, beginning with an overview of the software code. New capabilities and loss integration are discussed, before part two goes on to present case studies of finite element modelling using ATILA. The use of ATILA in finite element analysis, piezoelectric polarization, time domain analysis of piezoelectric devices and the design of ultrasonic motors is considered, before piezo-composite and photonic crystal applications are reviewed. The behaviour of piezoelectric single crystals for sonar and thermal analysis in piezoelectric and magnetostrictive materials is also discussed, before a final reflection on the use of ATILA in modelling the damping of piezoelectric structures and the behaviour of single crystal devices.With its distinguished editors and international team of expert contributors, Applications of ATILA FEM software to smart materials is a key reference work for all those involved in the research, design, development and application of smart materials, including electrical and mechanical engineers, academics and scientists working in piezoelectrics, magenetostrictors and shape memory materials.Provides an indispensable guide to the use of ATILA FEM software in the design of effective productsDiscusses new capabilities and loss integration of the software code, before presenting case studies of finite element modelling using ATILADiscusses the behaviour of piezoelectric single crystals for sonar and thermal analysis in piezoelectric and magnetostrictive materials, before a reflection on the use of ATILA in modelling the damping of piezoelectric structures

After Uchino’s introduction of a new terminology, ‘Micromechatronics’ in 1979 for describing the application area of ‘piezoelectric actuators’, the rapid advances in semiconductor chip technology have led to a new terminology MEMS(micro-electro-mechanical-system) or even NEMS (nano-electro-mechanicalsystem) to describe mainly thin film sensor/actuator devices, a narrower area of micromechatronics coverage. New technologies, product developments and commercialization are providing the necessity of this major revision. In particular, the progresses in high power transducers, loss mechanisms in smart materials, energy harvesting and computer simulations are significant. New technologies, product developments and commercialization are providingthe updating requirement for the book contents, in parallel to the deletion of oldcontents.Various educational/instructional example problems have been accumulated, which were integrated in the new edition in order to facilitate the self-learning for the students, and the quiz/problem creation for theinstructors.Heavily revised topics from the previous edition include: high power transducers, loss mechanisms in smartmaterials, energy harvesting and computer simulations New technologies, product developments and commercialization helped shape the updated contents of this book where all chapters have been updated and revised.This textbook is intended for graduate students and industrial engineers studying orworking in the fields of electronic materials, control system engineering, opticalcommunications, precision machinery, and robotics. The text is designed primarilyfor a graduate course with the equivalent of thirty 75-minute lectures; however, it isalso suitable for self-study by individuals wishing to extend their knowledge in thefield.

'Smart' materials can be attached to, or embedded into, structural systems to enable the structure to sense a change in the environment and respond to the ensuing stimulus accordingly. Actuators and sensors incorporating smart materials such as piezoelectric, magnetostrictive, electrostrictive, and shape memory alloys have been intensively developed. Such smart materials find tremendous applications ranging from active vibration control/suppression and precise positioning for manufacturing and machining, to devices for office equipment, automotive and biomedical areas. This book addresses fundamental and advanced materials issues related to smart structures including the research and development of new sensor and actuator materials, such as electro-/magnetorheological fluids and mechanochemical actuators. Both fundamentals and applications of smart materials are presented. Topics include: piezoelectrics; shape memory; actuator materials; magnetostrictive materials; and sensors and other materials.

Students preparing to work with mechatronics, particularly with highly precise and smart actuators, face the challenge of designing and analyzing devices without formal and practical guidance in computer techniques. Finally there is a textbook that is as practical as it is authoritative: Kenji Uchino's FEM and Micromechatronics with ATILA Software.Ideal for Today's Computer-Based CurriculaEvery aspect of this book reflects its focus on being easy to use, easy to teach from, and above all, easy to implement. The first half of the text outlines the theory needed to develop and design smart actuators and transducers, while the second half walks students step-by-step through the software implementation using seven extensive examples. Even the book's lay-flat binding makes it easy for students to follow the text while working simultaneously at a computer. The downloadable resources supply a free educational version of ATILA-Light.Unified Coverage for Integrated TechnologiesCovering the myriad challenges posed by smart transducers, the author introduces the fundamentals of piezoelectric and magnetostrictive devices, practical materials, device designs, drive and control techniques, and typical applications. Numerous problems and examples give students ample opportunity to put the concepts into practice.Outlining a complete treatment in 30 convenient 75 minute lessons, FEM and Micromechatronics with ATILA Software is a unique classroom text that students will continue to use throughout their entire careers.

Entrepreneurs have led economies out of downturns in the last 100 years and evidence points to this trend continuing into the future. In fact, regardless of country or economic conditions, entrepreneurial enterprises are on the rise. High-tech start-ups, where innovation, dedication, collaboration, and pure genius align into a successful enterprise, will likely see good times if they start up right. However, many young researchers hesitate to set up their own company. Written by an electrical engineer with more than nineteen years of successful business experience, Entrepreneurship for Engineers covers every aspect you must master to become a savvy entrepreneur. The author provides coverage of the fundamentals of global economies, accounting, finance, and quantitative business analysis, because ordinary engineers usually lack these necessary survival skills. Outlining a systematic preparation process that will build a great reputation in the commercial marketplace, the author answers: How to start up a company How to create product lines How to collect venture capital How to write successful RandD proposals How to apply forward thinking How to keep cash flowing in a small firmTypical MBA courses include the following curricula: economics, accounting, finance/investment, marketing, and human resources, with courses like Managerial Communications and Quantitative Business Analysis (Applied Mathematics), and finally Strategic Management and Business Ethics. Engineering curricula seldom includes any of this. Supplying almost all the knowledge necessary for operating a corporation, above and beyond what you may find in an MBA program, this book uses an approach to business that is just as disciplined and rigorous as any approach to engineering.

Entrepreneurs have led economies out of downturns in the last 100 years and evidence points to this trend continuing into the future. In fact, regardless of country or economic conditions, entrepreneurial enterprises are on the rise. High-tech start-ups, where innovation, dedication, collaboration, and pure genius align into a successful enterprise, will likely see good times—if they start up right. However, many young researchers hesitate to set up their own company. Written by an electrical engineer with more than nineteen years of successful business experience, Entrepreneurship for Engineers covers every aspect you must master to become a savvy entrepreneur. The author provides coverage of the fundamentals of global economies, accounting, finance, and quantitative business analysis, because ordinary engineers usually lack these necessary survival skills. Outlining a systematic preparation process that will build a great reputation in the commercial marketplace, the author answers: How to start up a companyHow to create product linesHow to collect venture capitalHow to write successful R&D proposalsHow to apply forward thinkingHow to keep cash flowing in a small firmTypical MBA courses include the following curricula: economics, accounting, finance/investment, marketing, and human resources, with courses like Managerial Communications and Quantitative Business Analysis (Applied Mathematics), and finally Strategic Management and Business Ethics. Engineering curricula seldom includes any of this. Supplying almost all the knowledge necessary for operating a corporation, above and beyond what you may find in an MBA program, this book uses an approach to business that is just as disciplined and rigorous as any approach to engineering.

Updating its bestselling predecessor, Ferroelectric Devices, Second Edition assesses the last decade of developments—and setbacks—in the commercialization of ferroelectricity. Field pioneer and esteemed author Uchino provides insight into why this relatively nascent and interdisciplinary process has failed so far without a systematic accumulation of fundamental knowledge regarding materials and device development.Filling the informational void, this collection of information reviews state-of-the-art research and development trends reflecting nano and optical technologies, environmental regulation, and alternative energy sources. Like the first edition, which became a standard in the field, this volume provides a general introduction to ferroelectrics with theoretical background. It then addresses practical design and device manufacturing, including recently developed processes and applications. Updating old data with a forecast of future developments, the text analyzes improvements to original ferroelectric devices to aid the design process of new ones. The second edition includes new sections on: Pb-free piezoelectrics Size effect on ferroelectricity Electrocaloric devices Micro mass sensor Piezoelectric energy harvesting Light valves and scanners Multi-ferroic devices, including magneto-electric sensorsUchino provides a general introduction to the theoretical background of ferroelectric devices, practical materials, device designs, drive/control techniques, and typical applications. He presents frequently asked questions from students, lab demonstrations for practical understanding, and "check point" quizzes and model solutions to monitor understanding.After a thorough exploration of ferroelectric devices and their past, this book looks to the industry’s future, assessing market size and remaining reliability/lifetime issues. The author also unveils his strategy for developing "best-selling" ferroelectric devices.

The problem solving edition "Piezoelectric Actuators -Problem Solving" was also published through Morikita, which was sold in conjunction with a 60 minute video tape to provide easy understanding.

In Light Driven Micromachines, the fundamental principles and unique characteristics of light driven material structures, simple mechanisms and integrated machines are explored. Very small light driven systems provide a number of interesting features and unique design opportunities because streams of photons deliver energy into the system and provide the control signal used to regulate the response of the micron sized device. Through innovative material design and clever component fabrication, these optically powered tiny machines can be created to perform mechanical work when exposed to varying light intensity, wavelength, phase, and/or polarization. The book begins with the scientific background necessary to understand the nature of light and how light can initiate physical movement by inducing material deformation or altering the surrounding environment to impose micro-forces on the actuating mechanisms. The impact of physical size on the performance of light driven mechanisms and machines is discussed, and the nature of light–material interactions is reviewed. These interactions enable very small objects and mechanical components to be trapped and manipulated by a focused light beam, or produce local temperature gradients that force certain materials to undergo shape transformation. Advanced phase transition gels, polymers, carbon-based films and piezoelectric ceramics that exhibit direct light-to-mechanical energy conversion are examined from the perspective of designing optically driven actuators and mechanical systems. The ability of light to create photothermal effects that drive microfluidic processes and initiate the phase transformation of temperature sensitive shape memory materials are also explored in the book. This compendium seeks to inspire the next generation of scientists and engineers by presenting the fundamental principles of this emerging interdisciplinary technology and exploring how the properties of light can be exploited for microfluidic, microrobotic, biomedical and space applications.

Piezoelectric energy is a renewable alternative energy source that operates on a smaller scale than renewable energy generation plants which generate Mega-Giga Watts of power. Its potential to "eliminate" contemporary batteries, which are classified as hazardous wastes, makes it an important technological advancement in a world increasingly concerned about eliminating waste, increasing sustainability and shifting to more "green" consumption habits.Authored by a pioneer of piezoelectric actuators and piezoelectric energy harvesting, this unique compendium provides a solid theoretical background of piezoelectrics, practical material selection, device design optimization, and energy harvesting electric circuits. Included in each chapter are a list of chapter essentials, check points, example problems and solutions, and practice problems.Written for advanced undergraduate and graduate students, university researchers, and industry engineers studying or working in the field of piezoelectric energy harvesting systems, the useful reference text provides readers with the essential knowledge to conduct research and raises readers' awareness of known pitfalls and mis-directions in the field.

Global Crisis and Sustainability Technologies is a nontechnical introduction and overview of the current "politico-engineering" — politically initiated engineering — intended for an international relationship. The book focuses specifically on technologies for crisis and societal sustainability in response to natural disasters, infectious diseases, enormous accidents, terrorist or criminal incidents, war or territorial invasions, elimination of toxic materials, and renewable energy, as well as risk management.The case studies cited draw from the author's experience in the United States, Japan, and China, and act as instructive studies that may be extended and applied to other countries.