Growing community of inventors

Osaka, Japan

Yoko Yamakawa

Average Co-Inventor Count = 2.00

ph-index = 2

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

Yoko Yamakawa ↔ Koichi Yamakawa (2 patents)Yoko YamakawaYoko Yamakawa (2 patents)Koichi YamakawaKoichi Yamakawa (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Light Touch Technology Incorporated (2 from 3 patents)


2 patents:

1. D937425 - Biological component measuring device

2. D908884 - Biological component measuring device

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as of
1/10/2026
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