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Nishio and Osaka, Japan

Otai Tekko Kabushiki Kaisha and Koyo Seiko Co., Ltd.

USPTO Granted Patents = 1

Forward Citations = 4

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4 inventors (with patents filed for the assignee):

Yasushi Kadota (1 out of 5 patents)

Nariaki Endo (1 out of 1 patent)

Takeomi Yamamoto (1 out of 1 patent)

4. Tadasu Yamakawa (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 5005541 - Hydraulic valve lifter (1991-04-09),

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#1 in Nishio and Osaka

#15,596 in Japan

Nishio and Osaka, Japan

Otai Tekko Kabushiki Kaisha and Koyo Seiko Co., Ltd.

Forward Citations = 4

4 inventors:

Yasushi Kadota (1 out of 5 patents)

Nariaki Endo (1 out of 1 patent)

Takeomi Yamamoto (1 out of 1 patent)

4. Tadasu Yamakawa (1 out of 1 patent)

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