Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6464190 | Self-winding-type fixture-lifting/lowering device | — | 2002-10-15 |
| 6367757 | Hanging device | — | 2002-04-09 |
| 6290166 | Wire-winding device | Akihiro Uehara | 2001-09-18 |
| 6142439 | Lifting apparatus | — | 2000-11-07 |