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For the Inventor, By the Inventor

Hiroshima, Japan

Chuo Industries, Ltd.


USPTO Granted Patents = 3


Forward Citations = 28

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3 inventors (with patents filed for the assignee):

goldMedal Kazuhiro Doi (3 out of 24 patents)

silverMedal Jun Yoshikawa (3 out of 3 patents)

bronzeMedal Tetsuya Kanayama (2 out of 18 patents)


3 patents:

1. 11007411 - Method for manufacturing iron golf club head, iron golf club head, and iron golf club (2021-05-18),
2. 10688354 - Method for manufacturing iron golf club head, iron golf club head, and iron golf club (2020-06-23),
3. 9522311 - Iron golf club head and iron golf club (2016-12-20),
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USPTO Data Jan 1 1976 - Dec 2 2025

3 Patents

#68 in Hiroshima, 729-3431

#8,779 in Japan

...
Hiroshima, Japan

Chuo Industries, Ltd.

Forward Citations = 28

3 inventors:

goldMedal Kazuhiro Doi (3 out of 24 patents)

silverMedal Jun Yoshikawa (3 out of 3 patents)

bronzeMedal Tetsuya Kanayama (2 out of 18 patents)

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