TK

Tadanobu Kumagai

TO Toyota: 7 patents #4,145 of 26,838Top 20%
Aisin Seiki Kabushiki Kaisha: 1 patents #2,094 of 3,782Top 60%
KS Kabushiki Kaisha Mihama Seisakusho: 1 patents #2 of 9Top 25%
TK Toyoda Koki Kabushiki Kaisha: 1 patents #307 of 674Top 50%
Overall (All Time): #661,816 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6864652 Drive system for automotive vehicle of front-and-rear wheel drive type Seitoku Kubo, Toshifumi Sakai, Naoyuki Sakai, Akihiro Ohno 2005-03-08
4796722 Drive shaft apparatus for transverse engine vehicle 1989-01-10
4701982 Clamp band Yutaka Matsuno, Hatsuyuki Tanaka 1987-10-27
4541817 Drive shaft assembly Masaki Sawabe 1985-09-17
4508522 Double cardan universal joint Akio Numazawa, Ichio Sakai, Seiichi Nishikawa 1985-04-02
4436310 Sealing device for joint Masaki Sawabe 1984-03-13
4417880 Joint assembly Yoshinobu Iwase 1983-11-29
4413701 Transmission with offset differential and deep wide groove radial ball bearing supporting intermediate shaft 1983-11-08