Ryo-Nichi Co., Ltd.

Calculating rank

USPTO Granted Patents = 4

Forward Citations = 37

Loading Chart...

10 inventors (with patents filed for the assignee):

Kakusaburo Nakanishi (2 out of 2 patents)

Tatsuro Yoshida (2 out of 2 patents)

Hiroshi Kameo (1 out of 9 patents)

4. Kazunaga Komizo (1 out of 2 patents)

5. Kyoku Nakatubo (1 out of 1 patent)

6. Tetsuaki Kihara (1 out of 1 patent)

7. Tsunekazu Akiyama (1 out of 1 patent)

8. Kenzi Ogura (1 out of 1 patent)

9. Masakatsu Itazawa (1 out of 1 patent)

10. Tetsuya Makino (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 4464517 - Process for the suspension polymerization of vinyl chloride (1984-08-07),

2. 4410747 - Process for producing 1,2-dichloroethane (1983-10-18),

3. 4021508 - Vinyl chloride -EPDM resin compositions (1977-05-03),

4. 3978162 - Process for producing vinyl chloride graft copolymers (1976-08-31),

Company Overview

Ryo-nichi Co., Ltd. is a leading manufacturer of high-quality electronics components, specializing in audio equipment and semiconductors. With a commitment to innovation and engineering excellence, we strive to provide cutting-edge solutions to meet the evolving needs of the electronics industry. Our products are known for their reliability, performance, and superior quality. Visit our website to learn more about our offerings and capabilities.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#283 in

#7,590 in Japan

JP

Ryo-Nichi Co., Ltd.

Forward Citations = 37

10 inventors:

Kakusaburo Nakanishi (2 out of 2 patents)

Tatsuro Yoshida (2 out of 2 patents)

Hiroshi Kameo (1 out of 9 patents)

4. Kazunaga Komizo (1 out of 2 patents)

5. Kyoku Nakatubo (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ryo-Nichi Co., Ltd.. Retrieved from https://idiyas.com/company/ryo-nichi-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]