Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659131 | Cutter fracture detecting system | Junichi Tezuka | 1997-08-19 |
| 5604077 | Positive-working photoresist composition comprising a novolac resin made in butyrolactone as a solvent | Hayato Ohno, Hidekatsu Kohara, Toshimasa Nakayama | 1997-02-18 |