Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |