Growing community of inventors

Ichihara, Japan

Shigeharu Yamamoto

Average Co-Inventor Count = 4.00

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

Shigeharu Yamamoto ↔ Hiroshi Morinaga (1 patent)Shigeharu Yamamoto ↔ Takeshi Iwabuchi (1 patent)Shigeharu Yamamoto ↔ Sakae Kamiyama (1 patent)Shigeharu YamamotoShigeharu Yamamoto (1 patent)Hiroshi MorinagaHiroshi Morinaga (7 patents)Takeshi IwabuchiTakeshi Iwabuchi (6 patents)Sakae KamiyamaSakae Kamiyama (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nissan Chemical Industries Limited (1 from 1,235 patents)


1 patent:

1. 4742132 - Process for the polymerization or copolymerization of ethylene

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12/20/2025
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