Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880421 | Rolled ball screw and method for rolling ball screw groove | Yasumi Watanabe | 2005-04-19 |
| 6870088 | Solar battery cell and manufacturing method thereof | Shinsuke Tachibana | 2005-03-22 |