Masahiro Watanabe

This inventor holds 26 USPTO granted patents and 1 published patent application, plus 2 CIPO patents and 5 EPO patents, primarily in Fuel Cell Technology. Top assignees: Tanaka Kikinzoku Kogyo K.k., Stonehart Associates Inc., Citizen Electronics Co., Ltd.. Active years: 1989-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiro Watanabe. Retrieved from https://idiyas.com/inventor/masahiro-watanabe-ozhrogd9

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

USPTO Granted Patents = 26 (Patent Applications = 1)

% Patents Active = 100.0

CIPO Patents = 2

EPO Patents = 5 (Patent Applications = 4)

Average Co-Inventor Count = 1.7

ph-index = 14

Forward Citations = 549(Granted Patents)

Location History:

Kofu, Yamanashi, JP (1996)
Kofu-shi, Yamanashi, JP (1989 - 1998)
Wadamachi, Kofu-shi, Yamanashi, JP (1995 - 1998)
Minamitsuru-gun, JP (2012)
Yamanashi, JP (1993 - 2021)

Company Filing History:

20 out of 372

Tanaka Kikinzoku Kogyo K.k.

patents

9 out of 21

Stonehart Associates Inc.

patents

4 out of 608

Citizen Electronics Co., Ltd.

Citizen Watch Company, Ltd.

patents

6. 1 out of 450

Citizen Holdings Company, Ltd.

patents

7. 16 out of 834,570

Other

patents

where one patent can have more than one assignee

Years Active: 1989-2021

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Areas of Expertise:

Light Emitting Diode

Fuel Cell

Electrocatalyst

Polymer Electrolyte

Gas Diffusion Electrode

Electrode Structure

Electrochemical Cell

Carbon Support

Reformed Gases

Wetting Diaphragm

Ion Exchange Membrane

Highly Dispersed Catalyst

26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. D911297 - Light emitting diode (2021-02-23),

2. D904989 - Light emitting diode (2020-12-15),

3. D895559 - Light emitting diode (2020-09-08),

4. D660813 - Light-emitting diode (2012-05-29),

5. 6168772 - Process for the selective oxidation of carbon monoxide in reformed gases (2001-01-02),

6. 5922487 - Anode electrocatalyst for fuel cell and process of preparing same (1999-07-13),

7. 5869132 - Process of preparing fluorinated material (1999-02-09),

8. 5846670 - Gas diffusion electrode for electrochemical cell and process of (1998-12-08),

9. 5846668 - Fuel cell, electrolytic cell and process of cooling and/or dehumidifying (1998-12-08),

10. 5800938 - Sandwich-type solid polymer electrolyte fuel cell (1998-09-01),

11. 5776539 - Process of preparing carbon support coated with polyolefin and of (1998-07-07),

12. 5766787 - Solid polymer electrolyte composition (1998-06-16),

13. 5728485 - Electrode for polymer electrolyte electrochemical cell and process of (1998-03-17),

14. 5529855 - Structure for wetting diaphragm of solid polymer electolyte (1996-06-25),

15. 5523181 - Polymer solid-electrolyte composition and electrochemical cell using the (1996-06-04),

Title: Innovations and Contributions of Masahiro Watanabe

Introduction

Masahiro Watanabe is a distinguished inventor based in Yamanashi, Japan, known for his remarkable contributions to the field of light-emitting diodes (LEDs). With an impressive portfolio of 26 patents, Watanabe's work has significantly impacted the advancements in lighting technology and semiconductor applications.

Latest Patents

Among his latest innovations, Watanabe has focused on the development of cutting-edge light-emitting diodes. These patents not only showcase his technical expertise but also demonstrate his commitment to enhancing the efficiency and performance of LED technologies.

Career Highlights

Watanabe's professional journey includes key roles at Tanaka Kikinzoku Kogyo Co., Ltd., where he has contributed greatly to the company’s research and development efforts. His relentless pursuit of innovation has positioned him as a pivotal figure in the growth of modern lighting solutions.

Collaborations

Throughout his career, Masahiro Watanabe has collaborated with notable individuals such as Noriaki Hara and Paul Stonehart. These partnerships have fostered an environment of creativity and technological advancement, further solidifying Watanabe's influence in the field.

Conclusion

Masahiro Watanabe’s dedication to innovation, combined with his extensive patent portfolio, marks him as a leading inventor in the realm of light-emitting diodes. His work continues to inspire and shape the future of lighting technology, making significant contributions to both industry and society.

Profile summary based on public USPTO records.