Growing community of inventors

Tokyo, Japan

Iwazo Kawaguchi

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 = 14

Iwazo Kawaguchi ↔ Koji Nakagawa (1 patent)Iwazo Kawaguchi ↔ Yutaka Harada (1 patent)Iwazo Kawaguchi ↔ Toshio Sato (1 patent)Iwazo Kawaguchi ↔ Yasushi Kasahara (1 patent)Iwazo Kawaguchi ↔ Yoshiro Higuchi (1 patent)Iwazo KawaguchiIwazo Kawaguchi (1 patent)Koji NakagawaKoji Nakagawa (7 patents)Yutaka HaradaYutaka Harada (2 patents)Toshio SatoToshio Sato (1 patent)Yasushi KasaharaYasushi Kasahara (1 patent)Yoshiro HiguchiYoshiro Higuchi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Denki Kagaku Kogyo Kabushiki Kaisha (1 from 475 patents)

2. Japanese National Railways (1 from 50 patents)

3. Toa Doro Kogyo Co., Ltd. (1 from 1 patent)


1 patent:

1. 4084981 - Quick hardening cement-asphalt composition

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12/18/2025
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