% Expired Patents = 33.3

Forward Citations = 25

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14 inventors (with patents filed for the assignee):

Takao Ono (3 out of 4 patents)

Ichiro Miura (2 out of 2 patents)

Takao Ohno (2 out of 4 patents)

4. Hiroshi Yamamoto (1 out of 104 patents)

5. Yoshiyuki Takahashi (1 out of 8 patents)

6. Mitsuru Iwabuchi (1 out of 1 patent)

7. Hiroaki Koyahara (1 out of 1 patent)

8. Kenji Fujimori (1 out of 1 patent)

9. Kazutaka Nakanami (1 out of 1 patent)

10. Shinichi Akaike (1 out of 1 patent)

11. Seiji Shibata (1 out of 2 patents)

12. Ken Ito (1 out of 2 patents)

13. Makoto Yanagawa (1 out of 5 patents)

14. Yasumichi Sasahara (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 6756166 - Photosensitive resin composition and printed wiring board (2004-06-29),

2. 6726780 - Lead-free solder, and paste solder composition (2004-04-27),

3. 6712262 - Water-soluble preflux, printed circuit board, and process for treating the surface of a metal in a printed circuit board (2004-03-30),

4. 6475701 - Active energy beam curable composition and printed wiring board (2002-11-05),

5. 5735973 - Printed circuit board surface protective agent (1998-04-07),

6. 5468784 - Photopolymerizable resin composition (1995-11-21),

Company Overview

Tamurakaken Corporation is a leading global provider of high-quality products and services in the manufacturing industry. With a focus on innovation and customer satisfaction, we strive to exceed expectations and deliver value to our clients. Our expertise includes precision machining, metal fabrication, and custom engineering solutions. Visit our website for more information.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#192 in

#5,990 in Japan

JP

Tamurakaken Corporation

Forward Citations = 25

14 inventors:

Takao Ono (3 out of 4 patents)

Ichiro Miura (2 out of 2 patents)

Takao Ohno (2 out of 4 patents)

4. Hiroshi Yamamoto (1 out of 104 patents)

5. Yoshiyuki Takahashi (1 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tamurakaken Corporation. Retrieved from https://idiyas.com/company/tamurakaken

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]