Growing community of inventors

Toyota, Japan

Kei Matsui

Average Co-Inventor Count = 2.80

ph-index = 4

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 = 45

Kei MatsuiOsamu Fujimoto (3 patents)Kei MatsuiYoshihiro Suda (3 patents)Kei MatsuiTeiji Mabuchi (3 patents)Kei MatsuiDaisuke Yamaguchi (2 patents)Kei MatsuiYoshihiko Tabuchi (2 patents)Kei MatsuiShoichiro Takehara (2 patents)Kei MatsuiTakaaki Koga (2 patents)Kei MatsuiAtsuki Sasaki (1 patent)Kei MatsuiKouji Kaneda (1 patent)Kei MatsuiMakoto Itou (1 patent)Kei MatsuiKei Matsui (5 patents)Osamu FujimotoOsamu Fujimoto (31 patents)Yoshihiro SudaYoshihiro Suda (14 patents)Teiji MabuchiTeiji Mabuchi (5 patents)Daisuke YamaguchiDaisuke Yamaguchi (13 patents)Yoshihiko TabuchiYoshihiko Tabuchi (2 patents)Shoichiro TakeharaShoichiro Takehara (2 patents)Takaaki KogaTakaaki Koga (2 patents)Atsuki SasakiAtsuki Sasaki (11 patents)Kouji KanedaKouji Kaneda (2 patents)Makoto ItouMakoto Itou (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (3 from 36,653 patents)

2. The University of Tokyo (3 from 1,285 patents)

3. Toyota Boshoku Kabushiki Kaisha (2 from 1,255 patents)


5 patents:

1. 8424965 - Clutch mechanism

2. 8182014 - Vehicle seat arranging structure

3. 8078364 - Vehicle seat apparatus

4. 8047606 - Headrest operating devices

5. 7934763 - Vehicle seat apparatus

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as of
12/28/2025
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