Growing community of inventors

Tokyo, Japan

Takayuki Usui

Average Co-Inventor Count = 6.00

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 = 3

Takayuki UsuiJunichi Hanna (2 patents)Takayuki UsuiHiroaki Iino (2 patents)Takayuki UsuiAkira Oono (2 patents)Takayuki UsuiTakeo Kobori (2 patents)Takayuki UsuiYukiko Takayashiki (2 patents)Takayuki UsuiTakayuki Usui (2 patents)Junichi HannaJunichi Hanna (41 patents)Hiroaki IinoHiroaki Iino (6 patents)Akira OonoAkira Oono (5 patents)Takeo KoboriTakeo Kobori (2 patents)Yukiko TakayashikiYukiko Takayashiki (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Dic Corporation (2 from 771 patents)

2. Tokyo Institute of Technology (2 from 573 patents)


2 patents:

1. 10937964 - Organic semiconductor material

2. 10056557 - Organic semiconductor material

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idiyas.com
as of
1/5/2026
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