Growing community of inventors

Tokyo, Japan

Masao Mitsui

Average Co-Inventor Count = 3.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 1

Masao Mitsui ↔ Willard E Henderer (1 patent)Masao Mitsui ↔ Sadayuki Akaki (1 patent)Masao Mitsui ↔ Yoshio Watanabe (0 patent)Masao Mitsui ↔ Fumitoshi c/o Yamawa MFGCO Ltd Nakayama (0 patent)Masao MitsuiMasao Mitsui (1 patent)Willard E HendererWillard E Henderer (10 patents)Sadayuki AkakiSadayuki Akaki (6 patents)Yoshio WatanabeYoshio Watanabe (0 patent)Fumitoshi c/o Yamawa MFGCO Ltd NakayamaFumitoshi c/o Yamawa MFGCO Ltd Nakayama (0 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Kennametal Inc. (1 from 1,544 patents)

2. Yamawa Mfg. Co., Ltd. (1 from 3 patents)

3. Yamawa Engineering Co., Ltd. (0 patent)

4. Yamawa Precision Co., Ltd. (0 patent)

5. Yamawa Taps Co., Ltd. (0 patent)


1 patent:

1. 7468001 - High-speed forming tap

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as of
12/17/2025
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