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For the Inventor, By the Inventor

Chiba, Japan

Atsushi Hagiwara

USPTO Granted Patents = 27

Average Co-Inventor Count = 3.0

ph-index = 11

Forward Citations = 307(Granted Patents)


Location History:

  • Okazaki, JP (2004)
  • Chiba, JP (2002 - 2005)
  • Tokyo, JP (1998 - 2006)

Company Filing History:

goldMedal27 out of 423 
 
Nisshinbo Industries, Inc.
 patents

Years Active: 1998-2006

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27 patents (USPTO):Explore Patents
1. 6998189 - Fuel cell separator and process for producing the same (2006-02-14),
2. 6939638 - Fuel cell separator, process for production thereof, and polymer electrolyte fuel cell (2005-09-06),
3. 6884535 - Fuel cell separator (2005-04-26),
4. 6881512 - Separator for fuel cell, process for production thereof, and solid polymer type fuel cell using said separator (2005-04-19),
5. 6815112 - Fuel cell separator and polymer electrolyte fuel cell (2004-11-09),
6. 6803139 - Electrically conductive resinous composition, fuel cell separator and production thereof, and polymer electrolyte fuel cell (2004-10-12),
7. 6764624 - Method of producing fuel cell separator, fuel cell separator, and polymer electrolyte fuel cell (2004-07-20),
8. 6746792 - Fuel cell separator composition, fuel cell separator and method of manufacture, and solid polymer fuel cell (2004-06-08),
9. 6686083 - Carbonaceous composite material, process for production thereof, fuel cell separator, and polymer electrolyte fuel cell (2004-02-03),
10. 6593021 - Fuel cell separator and fuel cell of solid polymer type (2003-07-15),
11. 6579083 - Mold for producing fuel cell separator (2003-06-17),
12. 6569372 - Fuel cell separator production system and method, and fuel cell separator (2003-05-27),
13. 6494926 - Fuel cell separator and production method thereof (2002-12-17),
14. 6461755 - ELECTROCONDUCTIVE RESIN COMPOSITION, FUEL CELL SEPARATOR MADE OF SAID ELECTROCONDUCTIVE RESIN COMPOSITION, PROCESS FOR PRODUCTION OF SAID FUEL CELL SEPARATOR, AND SOLID POLYMER TYPE FUEL CELL USING SAID FUEL CELL SEPARATOR (2002-10-08),
15. 6444344 - Material for fuel cell separator and fuel cell separator made from said material (2002-09-03),

Title: Atsushi Hagiwara: Innovator in Fuel Cell Technology

Introduction

Atsushi Hagiwara, an accomplished inventor based in Chiba, Japan, has made significant contributions to the field of fuel cell technology with a remarkable portfolio of 27 patents. His innovations focus on enhancing the efficiency and cost-effectiveness of fuel cell separators, integral components in energy systems.

Latest Patents

Hagiwara's latest patents include a revolutionary fuel cell separator designed to be low in cost while providing high hydrophilicity and electrical conductivity. One of his key inventions involves a process for producing this fuel cell separator, which utilizes a hydrophilization treatment in a hydrophilizing gas. This process yields a separator with a controlled surface contact angle between 3 to 70 degrees, as measured by the sessile drop method using water. Another notable patent is the development of a fuel cell separator featuring gas supply grooves, molded from a composition primarily consisting of electrically conductive carbon powder combined with a binding agent. This separator is designed to optimize the gas flow and improve overall functionality in polymer electrolyte fuel cells.

Career Highlights

Hagiwara is known for his innovative approach while working with Nisshinbo Industries, Inc., where he has continually pushed the boundaries of fuel cell technology. His dedication to research and development has established him as a respected figure in the engineering community.

Collaborations

Throughout his career, Atsushi has collaborated with several notable professionals, including Kazuo Saito and Fumio Tanno. These partnerships have fostered a creative environment that encourages the sharing of ideas and expertise, leading to groundbreaking advancements in their field.

Conclusion

Atsushi Hagiwara's contributions to fuel cell technology and his impressive track record of innovations reflect his commitment to advancing sustainable energy solutions. His patents not only enhance the performance of fuel cells but also showcase the potential for innovation within the industry. As he continues to develop novel technologies, Hagiwara undoubtedly remains a key player in the advancement of energy systems.

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