Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5348783 | Optical information recording medium | Eiji Ohno, Noboru Yamada, Kenichi Nagata, Nobuo Akahira | 1994-09-20 |
| 5346740 | Optical information recording medium | Eiji Ohno, Noboru Yamada, Kenichi Nagata, Nobuo Akahira | 1994-09-13 |
| 5305297 | Method for determining optimum irradiation conditions in optical data recording | Eiji Ohno, Noboru Yamada, Nobuo Akahira | 1994-04-19 |
| 5305303 | Optical information recording medium | Nobuo Akahira, Eiji Ohno, Kenichi Nagata, Noboru Yamada | 1994-04-19 |
| 5291470 | Optical information recording method | Noboru Yamada | 1994-03-01 |
| 5289453 | Optical information recording method | Eiji Ohno, Noboru Yamada, Nobuo Akahira | 1994-02-22 |