Location History:
- Hitachi, JA (1977)
- Hitachi, JP (1978 - 2005)
Company Filing History:
10 out of 42,496 
1 out of 1,267 Years Active: 1977-2005
Title: Akio Chiba: Innovator in Electronic Device Materials
Introduction
Akio Chiba is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of electronic devices, holding a total of 10 patents. His work primarily focuses on materials that enhance the performance and reliability of electronic components.
Latest Patents
Among his latest innovations is the aluminum nitride sintered body and substrate for electronic devices. This invention involves a sintered body produced by applying pressure to a powder composition that includes aluminum nitride and a specific percentage of sintering aids. The resulting sintered body exhibits a surface roughness of R max of 0.2 μm or less and a thermal conductivity of 200 (W/mK) or more. Another significant patent is for a commutator that features a central support with conductive segments separated by insulative segments. This design not only provides insulation but also incorporates a capacitive effect to suppress current peaks during operation, enhancing the overall efficiency of the commutator.
Career Highlights
Akio Chiba has worked with prominent companies such as Hitachi, Ltd. and Hitachi Koki Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in electronic device technology.
Collaborations
Throughout his career, Chiba has collaborated with notable colleagues, including Masahisa Sobue and Sadami Tomita. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Akio Chiba's contributions to the field of electronic devices through his patents and collaborations highlight his role as a key innovator. His work continues to influence the industry, paving the way for future advancements in technology.