Growing community of inventors

Tokyo, Japan

Kei Yamauchi

Average Co-Inventor Count = 2.00

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 = 2

Kei YamauchiOsamu Fujii (1 patent)Kei YamauchiKei Yamauchi (1 patent)Osamu FujiiOsamu Fujii (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Asahi Kasei Chemicals Corporation (1 from 510 patents)


1 patent:

1. 8299160 - Resin composition and automobile under-hood parts thereof

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as of
12/17/2025
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