Location History:
- Tokyo, JA (1976 - 1978)
- Akita, JP (1983 - 1992)
- Yuri, JP (1991 - 1992)
- Tokyo, JP (1984 - 2001)
- Kanagawa, JP (2014 - 2016)
Company Filing History:
8 out of 7,976 
5 out of 333 
4 out of 15 
Years Active: 1976-2016
Title: Hitoshi Masumura: Innovator in Dielectric Ceramic Composition
Introduction
Hitoshi Masumura is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of dielectric materials. With a total of 15 patents to his name, Masumura has pioneered advancements that enhance the performance and reliability of electronic components across various applications.
Latest Patents
Masumura's recent work focuses on dielectric ceramic compositions that boast a high dielectric constant of 75 or more and exceptional quality factors of 2000 or higher. One of his latest patents offers a dielectric ceramic composition that maintains a volume changing ratio of the electrostatic capacity within ±0.3% across a wide temperature range of -55 to +125°C. This innovation not only meets the NPO characteristics regulated by the EIA standard but also enables low-temperature sintering processes at temperatures between 1100 to 1150°C. Another noteworthy patent describes a composition within the BaTiO₃–Nb₂O₅–Co₃O₄ group, featuring a carefully balanced ratio of components to achieve a dielectric loss of less than 3.5% and a dielectric constant exceeding 4000.
Career Highlights
Throughout his career, Hitoshi Masumura has played a crucial role in advancing technologies within high-tech companies. Notably, he has worked with TDK Corporation and TDK Electronics Company, Limited, where his expertise in ceramic materials has significantly influenced product development and innovation.
Collaborations
Collaboration has been key to Masumura's success. He has worked alongside esteemed colleagues such as Shoichi Iwaya and Munemitsu Hamada, contributing to various projects that have enhanced the field of dielectric materials. These partnerships have fostered a creative environment conducive to innovation.
Conclusion
In summary, Hitoshi Masumura stands out as a leading figure in the development of dielectric ceramic compositions. His 15 patents illustrate his commitment to innovation and highlight the significant impact of his work on the electronics industry. As technology continues to evolve, Masumura's contributions will likely remain instrumental in shaping the future landscape of electronic materials.