Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646924 | Recording and simultaneous verifying method of phase-changing type of information recording medium | Osamu Nonoyama, Yukio Ide, Makoto Harigaya, Yoshiyuki Kageyama, Hiroshi Deguchi +2 more | 1997-07-08 |
| 5620767 | Light reflecting and heat dissipating material and optical information recording medium using the same | Makoto Harigaya, Yukio Ide, Osamu Nonoyama, Yoshiyuki Kageyama | 1997-04-15 |