Growing community of inventors

Kawasaki, Japan

Yoshikatsu Koyama

Average Co-Inventor Count = 7.00

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 = 44

Yoshikatsu KoyamaChikahiko Eguchi (2 patents)Yoshikatsu KoyamaAkira Kamimura (2 patents)Yoshikatsu KoyamaKozo Toyota (2 patents)Yoshikatsu KoyamaHideki Domoto (2 patents)Yoshikatsu KoyamaRyota Yoshimoto (1 patent)Yoshikatsu KoyamaMasataka Shoji (1 patent)Yoshikatsu KoyamaRyoto Yoshimoto (1 patent)Yoshikatsu KoyamaMasataka Syoji (1 patent)Yoshikatsu KoyamaYoshikatsu Koyama (2 patents)Chikahiko EguchiChikahiko Eguchi (15 patents)Akira KamimuraAkira Kamimura (4 patents)Kozo ToyotaKozo Toyota (3 patents)Hideki DomotoHideki Domoto (3 patents)Ryota YoshimotoRyota Yoshimoto (13 patents)Masataka ShojiMasataka Shoji (8 patents)Ryoto YoshimotoRyoto Yoshimoto (1 patent)Masataka SyojiMasataka Syoji (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ajinomoto Co., Ltd. (2 from 1,929 patents)


2 patents:

1. 5393890 - Piperidine derivatives and hypotensives containing the same

2. 5250681 - Piperidine derivatives and hypotensives containing the same

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12/8/2025
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