Growing community of inventors

Tsukuba, Japan

Takanao Otsuka

Average Co-Inventor Count = 6.87

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

Takanao Otsuka ↔ Masakuni Okuhara (2 patents)Takanao Otsuka ↔ Yasuhisa Tsurumi (2 patents)Takanao Otsuka ↔ Hirokazu Tanaka (1 patent)Takanao Otsuka ↔ Satoshi Okada (1 patent)Takanao Otsuka ↔ Shigehiro Takase (1 patent)Takanao Otsuka ↔ Masanori Okamoto (1 patent)Takanao Otsuka ↔ Nobuharu Shigematsu (1 patent)Takanao Otsuka ↔ Hiroshi Terano (1 patent)Takanao Otsuka ↔ Naoki Fukami (1 patent)Takanao Otsuka ↔ Keiji Hemmi, Deceased (1 patent)Takanao Otsuka ↔ Toshihiro Shibata (1 patent)Takanao Otsuka ↔ Seiji Yoshimura (1 patent)Takanao OtsukaTakanao Otsuka (2 patents)Masakuni OkuharaMasakuni Okuhara (39 patents)Yasuhisa TsurumiYasuhisa Tsurumi (15 patents)Hirokazu TanakaHirokazu Tanaka (76 patents)Satoshi OkadaSatoshi Okada (33 patents)Shigehiro TakaseShigehiro Takase (27 patents)Masanori OkamotoMasanori Okamoto (17 patents)Nobuharu ShigematsuNobuharu Shigematsu (12 patents)Hiroshi TeranoHiroshi Terano (9 patents)Naoki FukamiNaoki Fukami (7 patents)Keiji Hemmi, DeceasedKeiji Hemmi, Deceased (2 patents)Toshihiro ShibataToshihiro Shibata (1 patent)Seiji YoshimuraSeiji Yoshimura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fujisawa Pharmaceutical Company, Ltd. (2 from 940 patents)


2 patents:

1. 6110933 - Amino acid derivatives and their use as phospholipase A.sub.2 inhibitor

2. 4910017 - New compounds WF 2015 A and B

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12/6/2025
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