For the Inventor, By the Inventor

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Hitachi Keiyo Eng. Co., Ltd.

USPTO Granted Patents = 1

Forward Citations = 8

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5 inventors (with patents filed for the assignee):

Satoshi Ibori (1 out of 32 patents)

Hiroshi Nagase (1 out of 27 patents)

Hiroshi Sugai (1 out of 8 patents)

4. Hisakazu Ninomiya (1 out of 7 patents)

5. Sadayuki Igarashi (1 out of 2 patents)

1 patent: Sort by Forward Citations

1. 4516065 - Control apparatus for AC motors (1985-05-07),

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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#5,730 in Tokyo

#15,542 in Japan

Hitachi Keiyo Eng. Co., Ltd.

Forward Citations = 8

5 inventors:

Satoshi Ibori (1 out of 32 patents)

Hiroshi Nagase (1 out of 27 patents)

Hiroshi Sugai (1 out of 8 patents)

4. Hisakazu Ninomiya (1 out of 7 patents)

5. Sadayuki Igarashi (1 out of 2 patents)

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