Yokohama, Japan

Akira Fujiki

This inventor holds 25 USPTO granted patents and 2 EPO patents, primarily in Sintered Alloys Production. Top assignees: Nissan Motor Company Limited, Hitachi Powdered Metals Co., Ltd., Kabushiki Kaisha Riken. Active years: 1988-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akira Fujiki. Retrieved from https://idiyas.com/inventor/akira-fujiki

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


% Patents Active = 92.0


Average Co-Inventor Count = 4.7

ph-index = 11

Forward Citations = 340(Granted Patents)


Location History:

  • Yokosuka, JP (1988 - 1990)
  • Kanagawa-ken, JP (1996 - 2001)
  • Kanagawa, JP (1990 - 2003)
  • Yokohama, JP (1995 - 2012)

Company Filing History:


Years Active: 1988-2012

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Areas of Expertise:
Fuel Cell
Sintered Sprocket
Anisotropic Magnet
Wear Resistant
Copper Alloy
Powder Metallurgy
High Temperature
Iron Base Alloy
Connecting Rod
Composite Sintered Body
Vehicle Component
25 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Akira Fujiki in Fuel Cell Technology

Introduction: Akira Fujiki, a prominent inventor based in Yokohama, Japan, has significantly contributed to the field of fuel cell technology. With a remarkable portfolio of 25 patents, Fujiki's work focuses on innovative solutions for enhancing the efficiency and production of fuel cell stacks.

Latest Patents: Among his latest inventions are patented technologies that improve the assembly of fuel cell stacks. The system involves alternately stacking separators and membrane-electrode assemblies within a guide box. Each separator is designed with groove-like gas paths, facilitating efficient gas flow. An adhesive agent is applied to the surfaces of the separators (excluding the gas paths) using photosensitive drums, which adsorb the powder in a specified pattern. After stacking, the components are heated and compressed using specialized presses and heaters to create a unitized fuel cell stack.

Career Highlights: Fujiki has had a notable career with industry leaders such as Nissan Motor Company Limited and Hitachi Powdered Metals Co., Ltd. His contributions in these organizations have been instrumental in advancing fuel cell technologies and their applications.

Collaborations: Throughout his career, Fujiki has collaborated with esteemed colleagues like Makoto Kano and Kei Ishii. These partnerships have fostered an environment of innovation, leading to the development of cutting-edge technologies in the fuel cell domain.

Conclusion: Akira Fujiki's impactful inventions and collaborations have positioned him as a key figure in the innovation of fuel cell technology. His extensive patent portfolio reflects his commitment to advancing clean energy solutions, paving the way for a sustainable future.

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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