Growing community of inventors

Izumi, Japan

Keiko Nishida

Average Co-Inventor Count = 1.11

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 = 22

Keiko NishidaKatsuya Takeshi (1 patent)Keiko NishidaKeiko Nishida (5 patents)Katsuya TakeshiKatsuya Takeshi (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yamamoto Kogaku Co., Ltd. (5 from 120 patents)


5 patents:

1. D534200 - Swimming goggles

2. 6865753 - Goggles

3. 6845521 - Length adjusting mechanism of goggles

4. D466144 - Swimming goggles

5. D466145 - Swimming goggles

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as of
12/13/2025
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