Growing community of inventors

Gifu, Japan

Kohsaku Hirota

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 = 203

Kohsaku HirotaYoshiaki Isobe (2 patents)Kohsaku HirotaHaruo Takaku (2 patents)Kohsaku HirotaNobuyoshi Chiba (2 patents)Kohsaku HirotaHiroyuki Morita (1 patent)Kohsaku HirotaHironao Sajiki (1 patent)Kohsaku HirotaHaruhisa Ogita (1 patent)Kohsaku HirotaHiroyuki Matsui (1 patent)Kohsaku HirotaHarumi Satoh (1 patent)Kohsaku HirotaYoichi Ohba (1 patent)Kohsaku HirotaKohsaku Hirota (2 patents)Yoshiaki IsobeYoshiaki Isobe (28 patents)Haruo TakakuHaruo Takaku (8 patents)Nobuyoshi ChibaNobuyoshi Chiba (3 patents)Hiroyuki MoritaHiroyuki Morita (38 patents)Hironao SajikiHironao Sajiki (15 patents)Haruhisa OgitaHaruhisa Ogita (9 patents)Hiroyuki MatsuiHiroyuki Matsui (3 patents)Harumi SatohHarumi Satoh (1 patent)Yoichi OhbaYoichi Ohba (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Japan Energy Corporation (2 from 130 patents)


2 patents:

1. 6028076 - Purine derivative

2. 5849779 - Pyrazole derivatives and their pharmaceutical use

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1/3/2026
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