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Kabushiki Kaisha Tokiwa Seisakusho

USPTO Granted Patents = 3

Forward Citations = 21

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7 inventors (with patents filed for the assignee):

Retsuo Saito (2 out of 2 patents)

Junji Nagase (2 out of 2 patents)

Hiroshi Sakamaki (1 out of 37 patents)

4. Susumu Sugishita (1 out of 14 patents)

5. Yukio Horikoshi (1 out of 22 patents)

6. Hiroshi Okamura (1 out of 1 patent)

7. Kenji Shimizu (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4649612 - Method of manufacturing a rotor for rotary fluid pumps (1987-03-17),

2. 4323048 - Ball shooting machine for volleyball practice (1982-04-06),

3. D260024 - Serving machine for use in practicing volleyball (1981-07-28),

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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#454 in

#8,771 in Japan

Kabushiki Kaisha Tokiwa Seisakusho

Forward Citations = 21

7 inventors:

Retsuo Saito (2 out of 2 patents)

Junji Nagase (2 out of 2 patents)

Hiroshi Sakamaki (1 out of 37 patents)

4. Susumu Sugishita (1 out of 14 patents)

5. Yukio Horikoshi (1 out of 22 patents)

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