Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39647 | Disk for toroidal type continuously variable transmission | Kiyoshi Okubo, Akira Tsubouchi, Takashi Imanishi | 2007-05-22 |
| 6468180 | Toroidal type continuously variable transmission and method of manufacturing disk for toroidal type continuously variable transmission | Kiyoshi Okubo, Takashi Imanishi, Takehiko Yumoto | 2002-10-22 |
| 6196946 | Power roller bearing of toroidal type continuously variable transmission and method of manufacturing power roller bearing of toroidal type continuously variable transmission | Hiroyuki Sawai, Takafumi Kuwano, Takashi Imanishi, Nobuaki Mitamura | 2001-03-06 |
| 6113514 | Disk for toroidal type continuously variable transmission | Kiyoshi Okubo, Akira Tsubouchi, Takashi Imanishi | 2000-09-05 |