Growing community of inventors

Chuo-ku, Japan

Shin-ya Ohnuma

Average Co-Inventor Count = 3.43

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

Shin-ya Ohnuma ↔ Takeshi Hasegawa (1 patent)Shin-ya Ohnuma ↔ Shin-ichi Kazayama (1 patent)Shin-ya Ohnuma ↔ Hideki Yamada (1 patent)Shin-ya Ohnuma ↔ Koichi Takayanagi (1 patent)Shin-ya Ohnuma ↔ Tomoyuki Sada (1 patent)Shin-ya OhnumaShin-ya Ohnuma (2 patents)Takeshi HasegawaTakeshi Hasegawa (4 patents)Shin-ichi KazayamaShin-ichi Kazayama (4 patents)Hideki YamadaHideki Yamada (3 patents)Koichi TakayanagiKoichi Takayanagi (3 patents)Tomoyuki SadaTomoyuki Sada (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toa Eiyo Ltd. (2 from 30 patents)


2 patents:

1. 8546452 - [object Object]

2. 6933309 - Halogenobenzyl aminopropionic acid derivatives

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as of
12/12/2025
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