Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7500918 | Shaft member provided with a plurality of ridges on an outer circumferential surface thereof | — | 2009-03-10 |
| 5539987 | X-Y carriage moving system | — | 1996-07-30 |
| 4821561 | Method of metering an air-gap in an electric rotating machine | Keiji Takahashi | 1989-04-18 |