Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6071220 | Tool change device and tool change method | Tsutomu Sugihara, Hisao Sasaki, Kenichiro Morita, Toshio Yasoshima | 2000-06-06 |
| 5885200 | Tool change device | Tsutomu Sugihara, Hisao Sasaki | 1999-03-23 |