CIPO Patents = 1

EPO Patents = 1

Trademarks = 5

Forward Citations = 131

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13 inventors (with patents filed for the assignee):

Goro Matsui (2 out of 2 patents)

Koichi Tokura (2 out of 2 patents)

Yoshitaka Ohashi (1 out of 1 patent)

4. Kikuko Matsuoka (1 out of 1 patent)

5. Kazunori Takeguchi (1 out of 1 patent)

6. Kohji Hirata (1 out of 1 patent)

7. Sumio Sakka (1 out of 2 patents)

8. Yoshifumi Miyake (1 out of 1 patent)

9. Yuichi Aoyama (1 out of 1 patent)

10. Kiyoshi Terasaka (1 out of 1 patent)

11. Katsuyoshi Kiba (1 out of 1 patent)

12. Masazumi Tayake (1 out of 1 patent)

13. Tadashi Moriya (1 out of 1 patent)

14. Hiroshi Okumura (0 patent)

15. Hiroki Nishihara (3 patents)

7 patents: Sort by Forward Citations

1. 6565295 - Entry board for drilling (2003-05-20),

2. 5116440 - Process for manufacturing multilayer printed wiring board (1992-05-26),

3. 4881149 - Molded capacitor (1989-11-14),

4. 4766371 - Test board for semiconductor packages (1988-08-23),

5. 4683253 - Resin molding compound for sealing electronic parts (1987-07-28),

6. 4670814 - High-tension capacitor (1987-06-02),

7. 4654751 - High-tension capacitor (1987-03-31),

Company Overview

Risho Kogyo Co., Ltd. is a Japanese company specializing in the manufacturing of high-quality automotive components and industrial equipment. With over 70 years of experience, the company has built a strong reputation for reliability and innovation in the industry. Risho Kogyo is committed to providing cutting-edge solutions to meet the needs of its customers and partners worldwide.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

7 Patents

#596 in Osaka

#5,456 in Japan

Osaka, Japan

Risho Kogyo Co., Ltd.

Forward Citations = 131

13 inventors:

Goro Matsui (2 out of 2 patents)

Koichi Tokura (2 out of 2 patents)

Yoshitaka Ohashi (1 out of 1 patent)

4. Kikuko Matsuoka (1 out of 1 patent)

5. Kazunori Takeguchi (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Risho Kogyo Co., Ltd.. Retrieved from https://idiyas.com/company/risho-kogyo-company

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]

1 patent (EPO):

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]