EPO Patents = 1

Forward Citations = 47

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5 inventors (with patents filed for the assignee):

Masahiro Shibata (1 out of 86 patents)

Masakazu Shigehara (1 out of 1 patent)

Yasuhiro Ando (1 out of 24 patents)

4. Kouichiro Matsuno (1 out of 1 patent)

5. Tetsuaki Watanabe (1 out of 5 patents)

6. Shinichi Matsumoto (16 patents)

7. Kiyoshi Jokura (4 patents)

8. Yasuhiro Masuzaki (12 patents)

9. Hiroshi Miyabayashi (3 patents)

2 patents: Sort by Forward Citations

1. 7712979 - Optical adapter (2010-05-11),

2. 5329603 - Strain relief boot for an optical connector plug (1994-07-12),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

2 Patents

#400 in Kanagawa

#11,139 in Japan

Kanagawa, Japan

Sumiden High Precision Co., Ltd.

Forward Citations = 47

5 inventors:

Masahiro Shibata (1 out of 86 patents)

Masakazu Shigehara (1 out of 1 patent)

Yasuhiro Ando (1 out of 24 patents)

4. Kouichiro Matsuno (1 out of 1 patent)

5. Tetsuaki Watanabe (1 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sumiden High Precision Co., Ltd.. Retrieved from https://idiyas.com/company/sumiden-high-precision-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 (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]