Growing community of inventors

Narashino, Japan

Keiichi Yamagishi

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 = 2

Keiichi Yamagishi ↔ Hiroshi Sato (1 patent)Keiichi Yamagishi ↔ Fumio Yoshida (1 patent)Keiichi Yamagishi ↔ Minoru Shiga (1 patent)Keiichi Yamagishi ↔ Masakazu Ishihara (1 patent)Keiichi Yamagishi ↔ Tomoyuki Tsuneya (1 patent)Keiichi YamagishiKeiichi Yamagishi (1 patent)Hiroshi SatoHiroshi Sato (101 patents)Fumio YoshidaFumio Yoshida (3 patents)Minoru ShigaMinoru Shiga (1 patent)Masakazu IshiharaMasakazu Ishihara (1 patent)Tomoyuki TsuneyaTomoyuki Tsuneya (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Lion Corporation (1 from 271 patents)

2. Shiono Koryo Kaisha, Ltd. (1 from 1 patent)


1 patent:

1. 5214027 - Pyridine derivatives and perfumery compositions containing the

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as of
12/19/2025
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