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For the Inventor, By the Inventor

Tokyo, Japan

Yamawa Mfg. Co., Ltd.


USPTO Granted Patents = 3


Trademarks = 8

Forward Citations = 40

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3 inventors (with patents filed for the assignee):

goldMedal Willard E Henderer (3 out of 10 patents)

silverMedal Sadayuki Akaki (3 out of 6 patents)

bronzeMedal Masao Mitsui (1 out of 1 patent)

4.  Stephen Michael George (21 patents)

5.  Steven R Burns (3 patents)

6.  Fumitoshi c/o Yamawa MFGCO Ltd Nakayama (0 patent)

7.  Yoshio Watanabe (0 patent)

8.  M Yamawa Mfg Co Ltd Mitsui (0 patent)

9.  S Yamawa Mfg Co Ltd Akaki (0 patent)


3 patents:

1. 7468001 - High-speed forming tap (2008-12-23),
2. 7207867 - Precision cemented carbide threading tap (2007-04-24),
3. 7147413 - Precision cemented carbide threading tap (2006-12-12),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#3,273 in Tokyo

#8,785 in Japan

...
Tokyo, Japan

Yamawa Mfg. Co., Ltd.

Forward Citations = 40

3 inventors:

goldMedal Willard E Henderer (3 out of 10 patents)

silverMedal Sadayuki Akaki (3 out of 6 patents)

bronzeMedal Masao Mitsui (1 out of 1 patent)

4.  Stephen Michael George (21 patents)

5.  Steven R Burns (3 patents)

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