Location History:
- Tochigi, JP (2006)
- Saitama, JP (2014)
- Yokohama, JP (2017 - 2023)
- Takasaki, JP (2019 - 2023)
- Tokyo, JP (1997 - 2024)
Company Filing History:
10 out of 1,765 
4 out of 1,057 
3 out of 17 
Years Active: 1997-2024
Title: Innovator Spotlight: Tomohiro Harada
Introduction
Tomohiro Harada is an accomplished inventor based in Tokyo, Japan, known for his significant contributions to the field of piezoelectric materials. With an impressive portfolio of 26 patents, his work has sparked advancements in various electronic devices and applications.
Latest Patents
Among his most recent innovations, Harada has developed patents focusing on piezoelectric ceramics and their manufacturing methods. One notable patent describes a piezoelectric ceramic that contains no lead as a constituent element. It boasts a coefficient of variation in grain size of 35% or less, alongside an exceptional image quality obtained through electron backscatter diffraction (EBSD) methods. This specific ceramic showcases grains ranging from 3 μm to 5 μm in size, with a domain area ratio of 85% or more. Additionally, he has engineered a multilayer piezoelectric element, which features a ceramic body embedded with multiple internal electrodes that enhance the device's functionality. This innovation includes exterior electrodes that connect complex internal structures to optimize performance in electronic devices.
Career Highlights
Tomohiro Harada has made significant strides in his career, working with renowned companies such as Taiyo Yuden Co., Ltd. and Clarion Co. His experience at these firms has allowed him to refine his expertise in piezoelectric technology and contribute to commercial advancements in the sector.
Collaborations
Throughout his career, Harada has collaborated with prominent figures in the industry, including Sumiaki Kishimoto and Hiroyuki Shimizu. These partnerships have enabled him to leverage collective knowledge and innovate further in the realm of piezoelectric ceramics.
Conclusion
Tomohiro Harada's dedication and inventive spirit have positioned him as a leading figure in the development of advanced piezoelectric materials. His ongoing contributions to technology and collaboration with industry peers continue to drive innovation forward, making a lasting impact on the electronic devices of tomorrow.