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For the Inventor, By the Inventor

Chiba, Japan

Hitachi Powdered Metals


USPTO Granted Patents = 1

Forward Citations = 23

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2 inventors (with patents filed for the assignee):

goldMedal Hisanobu Kanamaru (1 out of 79 patents)

silverMedal Yosimi Sugaya (1 out of 1 patent)


1 patent:

1. 4829950 - Valve lifter and method of producing the same (1989-05-16),
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USPTO Data Jan 1 1976 - Dec 30 2025

1 Patents

#151 in Chiba

#15,554 in Japan

...
Chiba, Japan

Hitachi Powdered Metals

Forward Citations = 23

2 inventors:

goldMedal Hisanobu Kanamaru (1 out of 79 patents)

silverMedal Yosimi Sugaya (1 out of 1 patent)

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