Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790592 | Phase-change optical information recording medium | Makoto Harigaya, Katsuhiko Tani, Noriyuki Iwata, Kazunori Ito, Hajime Yuzurihara +4 more | 2004-09-14 |
| 6770346 | Optical recording medium and recording method | Makoto Harigaya, Hiroshi Miura, Hiroko Okura, Miku Mizutani, Hajime Yuzurihara +4 more | 2004-08-03 |