Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653145 | External circulation type ball thread device | Kazuo Miyaguchi | 1997-08-05 |
| 5595604 | Wafer supporting boat | Masayuki Kobayashi, Tsutomu Yuri, Youichi Serizawa, Mamoru Akimoto, Shinichi Okoshi | 1997-01-21 |