CIPO Patents = 1

Forward Citations = 182

Loading Chart...

5 inventors (with patents filed for the assignee):

Masahiro Watanabe (4 out of 26 patents)

Koichi Sakairi (2 out of 15 patents)

Yumi Yamamoto (2 out of 2 patents)

4. Tomoyuki Tada (1 out of 10 patents)

5. Hiroyuki Uchida (1 out of 35 patents)

6. Ryoetsu Sakurabashi (1 patent)

7. Masahiro Watanabe (0 patent)

6 patents: Sort by Forward Citations

1. 5922487 - Anode electrocatalyst for fuel cell and process of preparing same (1999-07-13),

2. 5871552 - Process of preparing electrode for solid polymer electrolyte fuel cell (1999-02-16),

3. 5766787 - Solid polymer electrolyte composition (1998-06-16),

4. 5728485 - Electrode for polymer electrolyte electrochemical cell and process of (1998-03-17),

5. 5294232 - Process of preparing solid polymer electrolyte type fuel cell (1994-03-15),

6. 5246792 - Structure of ion exchange membrane (1993-09-21),

Company Overview

Masahiro Watanabe is a renowned designer and artist, known for his unique and innovative approach to design. With a focus on blending traditional techniques with modern aesthetics, Watanabe's work is celebrated for its beauty and craftsmanship. His creations span various disciplines, including fashion, furniture, and interior design. Watanabe's designs have been featured in prestigious galleries and exhibitions around the world, solidifying his reputation as a master of his craft.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#15 in Yamanashi 400-0862

#5,989 in Japan

Yamanashi, Japan

Masahiro Watanabe

Forward Citations = 182

5 inventors:

Masahiro Watanabe (4 out of 26 patents)

Koichi Sakairi (2 out of 15 patents)

Yumi Yamamoto (2 out of 2 patents)

4. Tomoyuki Tada (1 out of 10 patents)

5. Hiroyuki Uchida (1 out of 35 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Masahiro Watanabe. Retrieved from https://idiyas.com/company/masahiro-watanabe

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

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]

1 patent (CIPO):

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]