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Seiwa Giken Inc.

USPTO Granted Patents = 3

Forward Citations = 5

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4 inventors (with patents filed for the assignee):

Tomohiro Akiyama (3 out of 31 patents)

Takashi Tanaka (3 out of 34 patents)

Kenji Mori (1 out of 72 patents)

4. Junichi Kazama (1 out of 7 patents)

3 patents: Sort by Forward Citations

1. 10746927 - Optical-fiber-holding member, and fusing device (2020-08-18),

2. 9939584 - Base member used for fusion splicer for joining optical fibers and fusion splicer (2018-04-10),

3. 9933572 - Fusion splicer (2018-04-03),

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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#3,263 in Tokyo

#8,771 in Japan

Seiwa Giken Inc.

Forward Citations = 5

4 inventors:

Tomohiro Akiyama (3 out of 31 patents)

Takashi Tanaka (3 out of 34 patents)

Kenji Mori (1 out of 72 patents)

4. Junichi Kazama (1 out of 7 patents)

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