Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7027371 | Rewritable optical recording medium, recording method on the same, and optical disc recording/retrieving apparatus | Natsuko Nobukuni, Takashi Ohno, Masae Kubo | 2006-04-11 |
| 7018698 | Optical information recording medium | Masaaki Mizuno, Hiroyuki Hoshino | 2006-03-28 |
| 6996052 | Optical information recording medium and optical recording method | Hironobu Mizuno, Takashi Ohno | 2006-02-07 |
| 6811949 | Optical information recording medium and optical recording method | Takashi Ohno | 2004-11-02 |
| 6723410 | Optical recording medium | Takashi Ohno, Kenjiro Kiyono | 2004-04-20 |
| 6671249 | OPTICAL RECORDING MEDIUM, DATA RECORDING METHOD FOR REWRITABLE-TYPE PHASE CHANGE TYPE OPTICAL DISC, DATA ERASE METHOD FOR REWRITABLE COMPACT DISC, DATA ERASE METHOD FOR REWRITABLE PHASE CHANGE TYPE RECORDING MEDIUM, READ ONLY DATA ERASE METHOD, AND RECORDING/READOUT APPARATUS | — | 2003-12-30 |
| 6661760 | Optical recording method and optical recording medium | Natsuko Nobukuni | 2003-12-09 |
| 6587425 | Multilevel recording and reproduction method and phase change multilevel recording medium | Takashi Ohno | 2003-07-01 |
| 6567367 | Multilevel recording and reproduction method and phase change multilevel recording medium | Takashi Ohno | 2003-05-20 |
| 6411579 | Optical recording method and optical recording medium | Natsuko Nobukuni | 2002-06-25 |
| 6294310 | Optical information recording medium and optical recording method | Takashi Ohno | 2001-09-25 |
| 6232036 | Optical recording disk | Yuki SUZUKI, Yuko Okamoto, Yutaka Kurose, Shuuichi Maeda | 2001-05-15 |
| 6214519 | Optical recording medium | Yuki SUZUKI, Syuichi Maeda, Yutaka Kurose, Yuko Okamoto | 2001-04-10 |
| 6143468 | Optical information recording medium and optical recording method | Takashi Ohno | 2000-11-07 |
| 6128273 | Optical phase-change disc | Takashi Ohno, Hideyuki Kubo, Masae Kubo, Hironobu Mizuno, Masaaki Mizuno +2 more | 2000-10-03 |
| 6115352 | Optical information recording medium capable of rewriting data at low reflectance and deterioration condition | Takashi Ohno, Masaaki Mizuno, Masae Kubo, Kanako Tsuboya | 2000-09-05 |
| 6115353 | Optical phase-change disc having a grooved substrate, with the groove having specific wobbled and non-wobbled regions | Takashi Ohno, Hideyuki Kubo, Masae Kubo, Hironobu Mizuno, Masaaki Mizuno +2 more | 2000-09-05 |
| 6108295 | Optical information recording medium | Takashi Ohno, Masaaki Mizuno, Masae Kubo, Kanako Tsuboya | 2000-08-22 |
| 6004646 | Optical information recording medium | Takashi Ohno, Masao Komatsu, Masae Kubo, Masaaki Mizuno, Natsuko Nobukuni +1 more | 1999-12-21 |
| 5862123 | Optical phase-change disc | Takashi Ohno, Hideyuki Kubo, Masae Kubo, Hironobu Mizuno, Masaaki Mizuno +2 more | 1999-01-19 |
| 5848043 | Modulation of laser power in accordance with a linear velocity by pulse division schemes | Ken' Ichi Takada, Takashi Ohno, Natsuko Nobukuni, Haruo Kunitomo | 1998-12-08 |
| 5818808 | Optical recording process and optical recording system | Ken'ichi Takada, Takashi Ohno, Natsuko Nobukuni, Haruo Kunitomo | 1998-10-06 |
| 5581539 | Optical recording medium | Haruo Kunitomo, Takashi Ohno, Kenichi Takada, Hironobu Mizuno | 1996-12-03 |
| 4839207 | Optical recording medium and process for producing the same | Toshihiko Yoshitomi, Yoshimitsu Kobayashi, Yoshiyuki Kisaka, Hidemi Yoshida, Takanori Tamura +1 more | 1989-06-13 |