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For the Inventor, By the Inventor

Tokai, Japan

Hiromi Tokoi

This inventor holds 10 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1990-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromi Tokoi. Retrieved from https://idiyas.com/inventor/hiromi-tokoi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 10

% Patents Active = 10.0

Average Co-Inventor Count = 3.8

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Tohkai, JP (1990)
  • Naka, JP (2013)
  • Tokai, JP (2011 - 2014)

Company Filing History:

goldMedal10 out of 42,731 
 
Hitachi, Ltd.
 patents

Years Active: 1990-2014

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10 patents (USPTO):Explore Patents
1. 8658323 - Solid oxide fuel cell generation system (2014-02-25),
2. 8445154 - Header for supplying gas in fuel cell and fuel cell power system (2013-05-21),
3. 8377600 - Fuel cell power generation system and method of operating thereof (2013-02-19),
4. 8247129 - Solid oxide fuel cell for a power generation (2012-08-21),
5. 8206867 - Fuel cell (2012-06-26),
6. 8173317 - Fuel cells power generation system (2012-05-08),
7. 8114546 - Fuel cell power generation system and method of operating thereof (2012-02-14),
8. 7972742 - Tube type fuel cell to decrease current path length (2011-07-05),
9. 7927751 - Fuel cell power system (2011-04-19),
10. 4937155 - Sodium-sulphur cell, method of operating same and method of load (1990-06-26),

Title: Innovations of Hiromi Tokoi: A Pioneer in Fuel Cell Technology

Introduction: Hiromi Tokoi, an accomplished inventor based in Tokai, Japan, has made significant contributions to the field of fuel cell technology. With a total of 10 patents to his name, his innovative approaches are shaping the future of energy generation.

Latest Patents: Among Tokoi's most notable patents is the "Solid Oxide Fuel Cell Generation System." This invention optimizes the startup process of a solid oxide fuel cell by heating both the reformer and the cell main body without the use of water and nitrogen gas, leading to reduced startup times and enhanced reliability. Another key patent, the "Header for Supplying Gas in Fuel Cell and Fuel Cell Power System," focuses on improving the distribution of combustion exhaust gas within a fuel cell system. By effectively managing heat transfer to fuel cells, Tokoi’s design ensures efficient energy generation and optimal operating conditions for the cells.

Career Highlights: Tokoi is a valued member of Hitachi, Ltd., where he has worked alongside renowned colleagues such as Shin Takahashi and Akira Gunji. His career has been marked by a commitment to advancing fuel cell technology, making him a leader in this vital energy sector.

Collaborations: Collaborating with talented professionals like Shin Takahashi and Akira Gunji has allowed Tokoi to explore new ideas and refine his inventions. These partnerships underline the importance of teamwork in driving innovation and developing successful technologies.

Conclusion: Hiromi Tokoi’s innovative patents and contributions in the area of fuel cell technology highlight his role as a leading inventor. With his expertise and collaborative spirit, he continues to influence the future of energy solutions and environmental sustainability.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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