Yokohama, Japan

Takeshi Kozai

This inventor holds 3 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Kyocera Corporation, Dainichi Co., Ltd.. Active years: 2019-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Kozai. Retrieved from https://idiyas.com/inventor/takeshi-kozai

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

USPTO Granted Patents = 3 

% Patents Active = 100.0

 

Average Co-Inventor Count = 1.8

ph-index = 1

Forward Citations = 6(Granted Patents)


Location History:

  • Kirishima, JP (2019)
  • Yokohama, JP (2024)

Company Filing History:


Years Active: 2019-2025

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3 patents (USPTO):Explore Patents

Title: The Innovations of Takeshi Kozai

Introduction

Takeshi Kozai is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of technology, particularly in the development of fuel cell systems and related devices. With a total of 3 patents to his name, Kozai's work reflects a commitment to advancing energy solutions.

Latest Patents

Kozai's latest patents include a cell stack device, a module, a module housing device, and a conductive member. The cell stack device features at least one cell and one conductive member, where the cell comprises an element portion. The conductive member is designed with a base member containing chromium, a first layer with an oxide containing zinc, and a zinc spinel portion at the interface between the base member and the first layer. This innovative design enhances the performance and efficiency of the cell stack. Additionally, his fuel cell system generates electricity using a fuel gas and air, incorporating an air supply, a temperature meter, and a controller that optimizes air supply based on the fuel cell's temperature.

Career Highlights

Throughout his career, Takeshi Kozai has worked with notable companies such as Kyocera Corporation and Dainichi Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in the energy sector.

Collaborations

Kozai has collaborated with esteemed colleagues, including Tetsuro Fujimoto and Kazunari Sugihara. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Takeshi Kozai's contributions to the field of fuel cell technology and his innovative patents demonstrate his dedication to advancing energy solutions. His work continues to influence the industry and pave the way for future innovations.

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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