Location History:
- Kawasaki, JP (1989 - 1990)
- Futtsu, JP (2004 - 2013)
- Chiba, JP (2007 - 2014)
- Tokyo, JP (2013 - 2018)
Company Filing History:
10 out of 3,557 
5 out of 1,101 
2 out of 544 
Years Active: 1989-2018
Title: Innovations of Hiroshi Kihira in Fuel Cell Technology
Introduction
Hiroshi Kihira is a prominent inventor based in Tokyo, Japan, known for his significant contributions to fuel cell technology. With a total of 18 patents to his name, Kihira has focused on developing materials that enhance the efficiency and durability of fuel cells. His work has implications for the future of clean energy solutions.
Latest Patents
Kihira's latest patents include a titanium or titanium alloy material designed for fuel cell separators. This innovative material boasts high contact conductivity with carbon and exceptional durability. One of his notable inventions involves a manufacturing method for a polymer electrolyte fuel cell separator that features an oxide film formed on a titanium substrate. This oxide film is stabilized after a passivation treatment and incorporates conductive materials such as carbide, nitride, carbonitride, and boride. These materials are dispersed within the oxide film, significantly improving contact conductivity and durability. Kihira's research indicates that the contact resistance value with carbon paper is 20 mΩ·cm or less, even after rigorous testing in a sulfuric acid solution. His work aims to extend the lifetime of fuel cells, making them more viable for widespread use in the manufacturing industry.
Career Highlights
Throughout his career, Kihira has worked with notable companies, including Nippon Steel Corporation and Nippon Steel & Sumitomo Metal Corporation. His experience in these organizations has allowed him to refine his expertise in materials science and fuel cell technology.
Collaborations
Kihira has collaborated with esteemed colleagues such as Koki Tanaka and Michio Kaneko. Their joint efforts have contributed to advancements in the field of fuel cell technology, further enhancing the potential applications of Kihira's inventions.
Conclusion
Hiroshi Kihira's innovative work in fuel cell technology demonstrates his commitment to advancing clean energy solutions. His patents reflect a deep understanding of materials science and a vision for a sustainable future. Kihira's contributions are poised to make a lasting impact on the energy sector.