Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39647 | Disk for toroidal type continuously variable transmission | Kiyoshi Okubo, Takashi Imanishi, Nobuo Gotou | 2007-05-22 |
| 7069764 | Method for manufacturing a hollow rack shaft | Kiyoshi Okubo, Yasushi Watanabe | 2006-07-04 |
| 6898853 | Method for manufacturing a hollow rack shaft | Kiyoshi Okubo, Yasushi Watanabe | 2005-05-31 |
| 6845560 | Method for manufacturing a hollow rack shaft | Kiyoshi Okubo, Yasushi Watanabe | 2005-01-25 |
| 6782598 | Method of manufacturing hollow rack shaft | Kiyoshi Okubo, Yasushi Watanabe | 2004-08-31 |
| 6782772 | Hollow rack shaft and manufacturing method thereof | Kiyoshi Okubo, Yasushi Watanabe | 2004-08-31 |
| 6779271 | Method for manufacturing a hollow rack shaft | Kiyoshi Okubo, Yasushi Watanabe | 2004-08-24 |
| 6763739 | Hollow rack shaft and manufacturing method thereof | Kiyoshi Okubo, Yasushi Watanabe | 2004-07-20 |
| 6588293 | Hollow rack shaft | Kiyoshi Okubo, Yasushi Watanabe | 2003-07-08 |
| 6442992 | Hollow rack shaft and method of manufacturing the same | Kiyoshi Okubo, Yasushi Watanabe | 2002-09-03 |
| 6113514 | Disk for toroidal type continuously variable transmission | Kiyoshi Okubo, Takashi Imanishi, Nobuo Gotou | 2000-09-05 |