Growing community of inventors

Chiba, Japan

Tooru Okayama

Average Co-Inventor Count = 9.00

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

Tooru OkayamaNobuyuki Suzuki (2 patents)Tooru OkayamaMasahiro Ikeda (2 patents)Tooru OkayamaHitoshi Ohki (2 patents)Tooru OkayamaYoshihiro Shibata (2 patents)Tooru OkayamaMasahiro Ota (2 patents)Tooru OkayamaYasusi Ueda (2 patents)Tooru OkayamaShinji Matuura (2 patents)Tooru OkayamaToshiyuki Nakanishi (2 patents)Tooru OkayamaTooru Okayama (2 patents)Nobuyuki SuzukiNobuyuki Suzuki (80 patents)Masahiro IkedaMasahiro Ikeda (59 patents)Hitoshi OhkiHitoshi Ohki (16 patents)Yoshihiro ShibataYoshihiro Shibata (15 patents)Masahiro OtaMasahiro Ota (8 patents)Yasusi UedaYasusi Ueda (4 patents)Shinji MatuuraShinji Matuura (4 patents)Toshiyuki NakanishiToshiyuki Nakanishi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daiichi Sankyo Company, Limited (2 from 441 patents)


2 patents:

1. 8445504 - Tricyclic pyrazolopyrimidine derivatives

2. 8236813 - Tricyclic pyrazolopyrimidine derivatives

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as of
12/27/2025
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