Growing community of inventors

Yokohama, Japan

Tsutomu Kawamura

Average Co-Inventor Count = 6.00

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 = 22

Tsutomu Kawamura ↔ Takashi Inoue (1 patent)Tsutomu Kawamura ↔ Toshitsune Yoshikawa (1 patent)Tsutomu Kawamura ↔ Satoru Kaneko (1 patent)Tsutomu Kawamura ↔ Masahiro Harashige (1 patent)Tsutomu Kawamura ↔ Atsuo Tokutake (1 patent)Tsutomu KawamuraTsutomu Kawamura (1 patent)Takashi InoueTakashi Inoue (59 patents)Toshitsune YoshikawaToshitsune Yoshikawa (5 patents)Satoru KanekoSatoru Kaneko (4 patents)Masahiro HarashigeMasahiro Harashige (2 patents)Atsuo TokutakeAtsuo Tokutake (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Petrochemicals Company, Limited (1 from 327 patents)


1 patent:

1. 5317051 - Surface whitening preventing flame-retardant olefin polymer composition

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1/6/2026
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