Growing community of inventors

Noda, Japan

Hirozi Watanabe

Average Co-Inventor Count = 4.00

ph-index = 3

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 = 52

Hirozi Watanabe ↔ Takeshi Akao (3 patents)Hirozi Watanabe ↔ Michio Kiuchi (3 patents)Hirozi Watanabe ↔ Tatuo Aonuma (3 patents)Hirozi WatanabeHirozi Watanabe (3 patents)Takeshi AkaoTakeshi Akao (11 patents)Michio KiuchiMichio Kiuchi (4 patents)Tatuo AonumaTatuo Aonuma (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kokkoman Shoyu Co., Ltd. (2 from 2 patents)

2. Kikkoman Shoyu Co., Ltd. (1 from 22 patents)


3 patents:

1. 4235354 - Sealing structure for rotary valves

2. 4228932 - Sealing structure for rotary valves

3. 4180188 - Sealing structure for rotary valves

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as of
12/14/2025
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