Growing community of inventors

Hiroshima, Japan

Masafumi Sugiyama

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 = 29

Masafumi SugiyamaSatoshi Fujimoto (1 patent)Masafumi SugiyamaYoshiko Nagatsuma (1 patent)Masafumi SugiyamaHideki Kawanishi (1 patent)Masafumi SugiyamaMasafumi Sugiyama (3 patents)Satoshi FujimotoSatoshi Fujimoto (2 patents)Yoshiko NagatsumaYoshiko Nagatsuma (1 patent)Hideki KawanishiHideki Kawanishi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Japan Medical Supply Co., Ltd. (2 from 24 patents)

2. Nishikawa Rubber Co., Ltd. (1 from 231 patents)


3 patents:

1. 5434194 - Method for making a cellular rubber, cellular rubbers obtained by the

2. 4952322 - Method for absorbing free hemoglobin from blood

3. 4728432 - Method for decontaminating blood

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as of
12/16/2025
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