Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673359 | Recording disk and recorded information reproducing apparatus | Naoto Itoh | 1997-09-30 |
| 5666460 | Compressed picture information recording apparatus performing in real time | Naoto Itoh | 1997-09-09 |
| 5631888 | Master disc recording apparatus and method for recording data on different types of master discs | Naoto Itoh | 1997-05-20 |