% Expired Patents = 33.3

Trademarks = 1

Forward Citations = 35

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14 inventors (with patents filed for the assignee):

Kozo Ichikawa (2 out of 3 patents)

Ryosuke Sato (1 out of 67 patents)

Takuya Arichi (1 out of 1 patent)

4. Toshio Inami (1 out of 4 patents)

5. Kenji Ohara (1 out of 16 patents)

6. Hitoshi Kawai (1 out of 2 patents)

7. Yuji Hamaguchi (1 out of 5 patents)

8. Tatsuya Sakurai (1 out of 1 patent)

9. Yoshiaki Aida (1 out of 1 patent)

10. Tomonari Yahata (1 out of 2 patents)

11. Ryotaro Togashi (1 out of 2 patents)

12. Hideaki Kusama (1 out of 3 patents)

13. Masami Hatori (1 out of 32 patents)

14. Minoru Kadoya (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 10615569 - Semiconductor laser with external resonator (2020-04-07),

2. 8796582 - Laser welding apparatus and method (2014-08-05),

3. 8662761 - Laser optical system using optical fiber transmission (2014-03-04),

4. 7851903 - Infrared detector with plurality of metallization between first and second container members (2010-12-14),

5. 7479635 - Infrared detector package (2009-01-20),

6. 7187703 - Intracavity sum-frequency mixing laser (2007-03-06),

Company Overview

Showa Optronics Co., Ltd. is a leading manufacturer of optical components and systems for a wide range of industries including telecommunications, healthcare, and defense. With a strong focus on innovation and quality, Showa Optronics is committed to providing cutting-edge solutions to meet the evolving needs of its customers. Their product offerings include lenses, prisms, filters, and other optical components for various applications. With a global presence and a reputation for excellence, Showa Optronics is a trusted partner for companies seeking high-quality optical solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

6 Patents

#2,469 in Tokyo

#5,989 in Japan

Tokyo, Japan

Showa Optronics Co., Ltd.

Forward Citations = 35

14 inventors:

Kozo Ichikawa (2 out of 3 patents)

Ryosuke Sato (1 out of 67 patents)

Takuya Arichi (1 out of 1 patent)

4. Toshio Inami (1 out of 4 patents)

5. Kenji Ohara (1 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Showa Optronics Co., Ltd.. Retrieved from https://idiyas.com/company/showa-optronics-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]