Growing community of inventors

Kakogawa, Japan

Motomu Hirakawa

Average Co-Inventor Count = 5.00

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 = 146

Motomu Hirakawa ↔ Morio Nakamura (1 patent)Motomu Hirakawa ↔ Shigeji Obayashi (1 patent)Motomu Hirakawa ↔ Hitoshi Tanaka (1 patent)Motomu Hirakawa ↔ Shinichi Takemori (1 patent)Motomu HirakawaMotomu Hirakawa (1 patent)Morio NakamuraMorio Nakamura (16 patents)Shigeji ObayashiShigeji Obayashi (11 patents)Hitoshi TanakaHitoshi Tanaka (7 patents)Shinichi TakemoriShinichi Takemori (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seitetsu Kagaku Co., Ltd. (1 from 50 patents)


1 patent:

1. 4590227 - Water-swellable elastomer composition

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12/18/2025
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