Location History:
- Tokyo, JP (1998 - 2002)
- Okazaki, JP (2004)
- Chiba, JP (2002 - 2021)
Company Filing History:
9 out of 423 
3 out of 22 
1 out of 85 Years Active: 1998-2024
Title: Fumio Tanno: Innovator in Fuel Cell Technology
Introduction
Fumio Tanno is a prominent inventor based in Chiba, Japan. He holds a total of 14 patents, primarily focused on advancements in fuel cell technology. Tanno's contributions to this field have made significant impacts on the efficiency and effectiveness of fuel cell systems.
Latest Patents
Among Tanno's latest innovations are notable inventions in fuel cell separators. One of his significant patents is for a fuel cell separator, which is crafted by molding a composition that includes a carbonaceous material and a resin. This separator features a unique sealing part and a groove that serves as a gas flow channel on one or both surfaces. The design specifications ensure that the arithmetic mean heights Sa of the surface of the sealing part and the groove’s peak range between 0.50-1.60 μm, with profile peak heights Spk not exceeding 1.50 μm, in accordance with ISO 25178-2 (2012). This innovative separator offers excellent hydrophilicity and adhesion properties to gaskets.
Additionally, Tanno has developed a resin composition for dense fuel cell separators, which incorporates a graphite powder along with an epoxy resin component that consists of a base material, curing agent, and curing accelerator. The graphite powder is characterized by a spring back of 20-70% and an average particle diameter of 30-100 μm. The curing accelerator used is an imidazole compound with an aryl group positioned in the 2-position. This composition contributes to manufacturing dense separators for fuel cells, capable of achieving performance standards even in compression molding processes completed within a short timeframe of less than 10 seconds.
Career Highlights
Throughout his career, Fumio Tanno has worked with notable companies that include Nisshinbo Industries, Inc. and Nisshinbo Chemical Inc. His experiences within these organizations have provided him with the platform to innovate and develop advanced technologies in the fuel cell sector.
Collaborations
In his journey as an inventor, Tanno has collaborated with esteemed coworkers, including Kazuo Saito and Atsushi Hagiwara. Their joint efforts have contributed to fruitful research and development projects, resulting in enhanced fuel cell technologies and applications.
Conclusion
Fumio Tanno stands out as a significant figure in the realm of fuel cell innovations. His extensive patent portfolio reflects his commitment to advancing sustainable energy technology. Through his inventions, he continues to contribute to the development of more efficient and reliable fuel cell systems, ultimately supporting a greener future.