Issued Patents 2004
Showing 1–3 of 3 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 |
| 6777057 | Phase-change optical recording medium and recording method and apparatus for the same | Kazunori Ito, Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki +2 more | 2004-08-17 |
| 6770346 | Optical recording medium and recording method | Makoto Harigaya, Hiroshi Miura, Hiroko Okura, Miku Mizutani, Eiko Hibino +4 more | 2004-08-03 |