Growing community of inventors

Funabashi, Japan

Hiroyuki Kotajima

Average Co-Inventor Count = 7.00

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 = 0

Hiroyuki Kotajima ↔ Ryuji Ueno (1 patent)Hiroyuki Kotajima ↔ Tatsuya Matsukawa (1 patent)Hiroyuki Kotajima ↔ Shunsuke Fukuya (1 patent)Hiroyuki Kotajima ↔ Noriyuki Yamamoto (1 patent)Hiroyuki Kotajima ↔ Michiharu Handa (1 patent)Hiroyuki Kotajima ↔ Katsuya Sakata (1 patent)Hiroyuki KotajimaHiroyuki Kotajima (1 patent)Ryuji UenoRyuji Ueno (151 patents)Tatsuya MatsukawaTatsuya Matsukawa (12 patents)Shunsuke FukuyaShunsuke Fukuya (2 patents)Noriyuki YamamotoNoriyuki Yamamoto (2 patents)Michiharu HandaMichiharu Handa (1 patent)Katsuya SakataKatsuya Sakata (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sucampo Ag (1 from 59 patents)

2. R-tech Ueno, Ltd. (1 from 55 patents)


1 patent:

1. 9242950 - Method for preparing a fatty acid derivative

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12/11/2025
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