Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7194750 | Recording/reproducing apparatus and disk cartridge | Yasutomo Aman, Shozo Murata | 2007-03-20 |
| 7164629 | Method of controlling an optical disk apparatus | Yasutomo Aman, Shozo Murata | 2007-01-16 |
| 7102977 | 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 | 2006-09-05 |
| 7042831 | Optical information recording medium | Kazunori Ito, Hajime Yuzurihara, Katsuyuki Yamada, Shinya Narumi | 2006-05-09 |
| 6914866 | Optical information recording medium and information recording method and apparatus using the recording medium | Shinya Narumi, Katsuyuki Yamada, Kazunori Ito, Hajime Yuzurihara | 2005-07-05 |
| 6884487 | Optical recording medium, recording material, method of producing optical recording medium, and optical recording, reading and rewriting method | Kazunori Ito, Eiko Hibino, Makoto Harigaya, Takashi Shibaguchi, Hajime Yuzurihara +3 more | 2005-04-26 |
| 6884488 | 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 | 2005-04-26 |
| 6846611 | Phase-change optical recording medium | Hajime Yuzurihara, Kazunori Ito, Masaru Shinkai, Eiko Hibino, Hiroko Ohkura +1 more | 2005-01-25 |
| 6841049 | OPTICAL DEVICE SUBSTRATE FILM-FORMATION APPARATUS, OPTICAL DISK SUBSTRATE FILM-FORMATION METHOD, SUBSTRATE HOLDER MANUFACTURE METHOD, SUBSTRATE HOLDER, OPTICAL DISK AND A PHASE-CHANGE RECORDING TYPE OF OPTICAL DISK | Kazunori Ito, Katsunari Hanaoka, Hiroshi Deguchi, Hiroko Tashiro, Kiyoto Shibata +5 more | 2005-01-11 |
| 6827999 | Optical information recording medium | Kazunori Ito, Hajime Yuzurihara, Katsuyuki Yamada, Shinya Narumi | 2004-12-07 |
| 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 |
| 6548137 | 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 | 2003-04-15 |
| 6479121 | Optical recording medium and method of fabricating same | Hiroshi Miura, Katsunari Hanaoka, Makoto Harigaya | 2002-11-12 |
| 5759657 | Optical recording medium and device for reproducing the same | Takanobu Higuchi | 1998-06-02 |
| 5757736 | Method of and apparatus for recording information to magneto optical disc having plural recording layers | — | 1998-05-26 |
| 5681633 | Magneto optical disc, apparatus for reproducing the same and method of reproducing the same | Nobuyasu Negishi, Takamasa Yoshikawa | 1997-10-28 |
| 5617406 | Optical disc with heat blocking bands between tracks | Fumihiko Yokogawa | 1997-04-01 |
| 5592445 | Exchange coupling optical recording medium and recording/reproducing device therefor | — | 1997-01-07 |
| 5452273 | Optical recording method and apparatus therefor | — | 1995-09-19 |
| 5448552 | Super resolution information reproduction by tracking address information in normal resolution | — | 1995-09-05 |
| 5382460 | Optical recording disk and production process therefor | Shinichiro Suzuki, Takamasa Yoshikawa | 1995-01-17 |
| 5217850 | Optical recording disk and manufacturing method thereof | Seiro Fujii, Satoshi Jinno, Takamasa Yoshikawa, Takahiro Kobayashi, Masataka Yamaguchi +4 more | 1993-06-08 |
| 5087340 | Method of making magneto-optical recording disk | Shinichiro Suzuki, Seiro Fujii, Takahiro Kobayashi, Takamasa Yoshikawa, Masayasu Yamaguchi +1 more | 1992-02-11 |