For the Inventor, By the Inventor

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Okamoto Co., Ltd.

USPTO Granted Patents = 3

Forward Citations = 7

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8 inventors (with patents filed for the assignee):

Takao Horie (2 out of 5 patents)

Hideo Hirano (1 out of 6 patents)

Tadashi Kitudo (1 out of 1 patent)

4. Mamoru Takemura (1 out of 1 patent)

5. Mituaki Matumuro (1 out of 1 patent)

6. Hideto Matumoto (1 out of 1 patent)

7. Kazumichi Shimizu (1 out of 1 patent)

8. Shoichi Sakai (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 6908589 - High manganese cast iron containing spheroidal vanadium carbide and method for making therof (2005-06-21),

2. 5080161 - System for preparing self-hardening casting mold using organic binder (1992-01-14),

3. 4519221 - Knitting machine (1985-05-28),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#23 in Gifu

#8,777 in Japan

Okamoto Co., Ltd.

Forward Citations = 7

8 inventors:

Takao Horie (2 out of 5 patents)

Hideo Hirano (1 out of 6 patents)

Tadashi Kitudo (1 out of 1 patent)

4. Mamoru Takemura (1 out of 1 patent)

5. Mituaki Matumuro (1 out of 1 patent)

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