Toyonaka, Japan

Kenji Arai

This inventor holds 19 USPTO granted patents and 4 EPO patents, primarily in Fuel Cell Technology. Top assignees: Sumitomo Chemical Company, Limited, Chugoku Marine Paints, Ltd., Panasonic Corporation. Active years: 1988-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kenji Arai. Retrieved from https://idiyas.com/inventor/kenji-arai-cltf9vxi

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

Calculating rank

% Patents Active = 94.7

 

Average Co-Inventor Count = 4.5

ph-index = 3

Forward Citations = 24(Granted Patents)


Location History:

  • Takarazuka, JP (1988 - 1991)
  • Toyonaka, JP (1989 - 2000)
  • Osaka, JP (1993 - 2018)

Company Filing History:


Years Active: 1988-2018

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Areas of Expertise:
Fuel Cell Stack
Polymer Electrolyte
Solid Polymer Fuel Cell
Anti-Fouling Compositions
Microbicidal Composition
Plant Growth Regulator
Hydroxamic Acid Esters
Cyclohexane Herbicides
Beta-Hydroxyketone
Isothiazolone Derivatives
Pyridyl Thio Compounds
Cyclohexenone Derivative
19 patents (USPTO):Explore Patents

Title: Innovations of Kenji Arai: A Focus on Fuel Cell Technology

Introduction

Kenji Arai, an accomplished inventor based in Toyonaka, Japan, holds an impressive portfolio with 19 patents to his name. His innovative contributions primarily revolve around advancements in fuel cell technology, showcasing his expertise and commitment to sustainable energy solutions.

Latest Patents

Among his latest inventions is a **fuel cell stack**, which features a sophisticated structure comprising a cell stack formed by stacking multiple cells, current collectors, end members, and a fastener band. This design enhances the efficiency and stability of the fuel cell system. Each end member consists of a set of plate members, specifically designed with an arched shape that increases in height toward the center, promoting effective current collection.

Another significant patent is the **polymer electrolyte fuel cell**. This design includes numerous stacked cells with an ionic conductive electrolyte membrane, featuring an anode and cathode strategically placed on either side of the membrane. The conductive separator incorporates a first refrigerant channel and penetration holes that create a manifold, allowing the refrigerant to flow seamlessly, thus improving the fuel cell's cooling efficiency.

Career Highlights

Kenji Arai has a robust professional background, having worked with renowned companies such as Sumitomo Chemical Company and Panasonic Corporation. His tenure at these institutions has further solidified his position as a leading innovator in the field of fuel cell technology.

Collaborations

Throughout his career, Arai has collaborated with talented individuals like Naonori Hirata and Nobuaki Mito. These partnerships have fostered an environment of creativity and innovation, leading to the development of significant technologies in the energy sector.

Conclusion

Kenji Arai's contributions to fuel cell technology demonstrate his dedication to pushing the boundaries of innovation. With 19 patents and a career spanning multiple esteemed companies, his work continues to impact the field of sustainable energy, driving advancements that may revolutionize how we harness and utilize energy in the 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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