Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679212 | Method for production of silicon wafer and apparatus therefor | Tadahiro Kato | 1997-10-21 |
| 5656348 | Optical recording medium and its recording apparatus and reproducing apparatus | Yoshimi Tomita | 1997-08-12 |
| 5595412 | Device for handling wafers | Isao Uchiyama | 1997-01-21 |