Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697252 | Preliminary thrusting mechanism for a screw device | Toshiaki Yamaguchi | 1997-12-16 |
| 5653145 | External circulation type ball thread device | Shuichi Kobayashi | 1997-08-05 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697252 | Preliminary thrusting mechanism for a screw device | Toshiaki Yamaguchi | 1997-12-16 |
| 5653145 | External circulation type ball thread device | Shuichi Kobayashi | 1997-08-05 |