Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6827999 | Optical information recording medium | Hajime Yuzurihara, Nobuaki Onagi, Katsuyuki Yamada, Shinya Narumi | 2004-12-07 |
| 6790592 | Phase-change optical information recording medium | Makoto Harigaya, Katsuhiko Tani, Noriyuki Iwata, Hajime Yuzurihara, Eiko Hibino +4 more | 2004-09-14 |
| 6777057 | Phase-change optical recording medium and recording method and apparatus for the same | Michiharu Abe, Makoto Harigaya, Takashi Shibaguchi, Eiko Suzuki, Nobuaki Onagi +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 |