Toshihiro Tanuma

This inventor holds 27 USPTO granted patents and 3 published patent applications, plus 3 CIPO patents and 6 EPO patents, primarily in Polymer Electrolyte Fuel Cells. Top assignees: Asahi Glass Company, Limited, Agc Inc., Panasonic Corporation. Active years: 1993-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshihiro Tanuma. Retrieved from https://idiyas.com/inventor/toshihiro-tanuma

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

Calculating rank

USPTO Granted Patents = 27 (Patent Applications = 3)

% Patents Active = 70.4

CIPO Patents = 3 (Patent Applications = 1)

EPO Patents = 6 (Patent Applications = 5)

Average Co-Inventor Count = 2.0

ph-index = 6

Forward Citations = 105(Granted Patents)

Location History:

Yokohoma, JP (1997)
Yokohama, JP (1993 - 2013)
Kanagawa, JP (2007 - 2013)
Tokyo, JP (2013)
Chiyoda-ku, JP (2011 - 2020)

Company Filing History:

23 out of 2,560

Asahi Glass Company, Limited

Panasonic Corporation

patents

4. 1 out of 32,050

Gm Global Technolgoy Operations, Inc.

patents

where one patent can have more than one assignee

Years Active: 1993-2025

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Areas of Expertise:

Solid Polymer Fuel Cell

Membrane Electrode Assembly

Catalyst Layer

Liquid Composition

Polymer Electrolyte

Fluoropolymer

Production Methods

Coating Liquid

Ionomer Overcoat

Hydrogen Production

Alumina Coating

Recording Sheet

27 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12362366 - Catalyst layer, membrane electrode assembly for solid polymer fuel cell, and solid polymer fuel cell (2025-07-15),

2. 10563021 - Methods for producing liquid composition, coating liquid for catalyst layer and membrane electrode assembly (2020-02-18),

3. 10547062 - Polymer electrolyte fuel cell (2020-01-28),

4. 10035898 - Method for producing liquid composition, method for producing coating liquid for forming catalyst layer, and method for producing membrane electrode assembly (2018-07-31),

5. 8999434 - Process for producing membrane/ electrode assembly for polymer electrolyte fuel cells (2015-04-07),

6. 8535847 - Membrane/electrode assembly for polymer electrolyte fuel cell (2013-09-17),

7. 8475967 - Membrane/electrode assembly for polymer electrolyte fuel cell and process for producing cathode for polymer electrolyte fuel cell (2013-07-02),

8. 8470943 - Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer (2013-06-25),

9. 8372474 - Method of making fuel cell components including a catalyst layer and a plurality of ionomer overcoat layers (2013-02-12),

10. 8263710 - Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer (2012-09-11),

11. 8221919 - Process for forming catalyst layer, and process for producing membrane/electrode assembly for polymer electrolyte fuel cell (2012-07-17),

12. 8202570 - Process for producing membrane/electrode assembly for polymer electrolyte fuel cell and process for producing polymer electrolyte fuel cell (2012-06-19),

13. 8043763 - Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer (2011-10-25),

14. 8007953 - Process for producing membrane/electrode assembly for polymer electrolyte fuel cell (2011-08-30),

15. 7220508 - Solid polymer electrolyte material, liquid composition, solid polymer fuel cell and fluoropolymer (2007-05-22),

Title: Toshihiro Tanuma - Innovative Inventor from Chiyoda-ku, JP

Introduction: Toshihiro Tanuma is a renowned inventor hailing from Chiyoda-ku, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Tanuma's latest patents include advancements in artificial intelligence algorithms for autonomous vehicles, wearable technology for healthcare monitoring, and sustainable energy solutions for urban environments.

Career Highlights: With over two decades of experience in research and development, Tanuma has worked with leading tech companies in Japan, spearheading projects that have received international recognition for their ingenuity and impact.

Collaborations: Tanuma has collaborated with top universities and research institutions in Japan, fostering a culture of innovation and knowledge-sharing. His partnerships have led to the development of cutting-edge technologies that are shaping the future of various industries.

Conclusion: Toshihiro Tanuma's passion for innovation and his relentless pursuit of excellence have solidified his reputation as a visionary inventor in Chiyoda-ku, Japan, inspiring the next generation of inventors to push the boundaries of what is possible in the world of technology.

Profile summary based on public USPTO records.