Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7881173 | Optical information recording method, optical information recording device and optical information recording medium | Kenji Narumi, Kenichi Nishiuchi | 2011-02-01 |
| 7821892 | Optical information recording method, optical information recording device and optical information recording medium | Kenji Narumi, Kenichi Nishiuchi | 2010-10-26 |
| 7813239 | Optical information recording method, optical information recording device and optical information recording medium | Kenji Narumi, Kenichi Nishiuchi | 2010-10-12 |
| 7760596 | Optical information recording method, optical information recording device, and optical information recording medium | Kenji Narumi, Kenichi Nishiuchi | 2010-07-20 |
| 7251202 | Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus | Kenichi Nishiuchi, Tetsuya Akiyama | 2007-07-31 |
| 7193948 | Optical recording medium, method for recording on optical record medium, and apparatus for recording on optical record medium | Kenichi Nishiuchi, Tetsuya Akiyama, Kenji Narumi | 2007-03-20 |
| 7158458 | Method and apparatus for recording/reproducing information with respect to optical recording medium | Kenichi Nishiuchi, Tetsuya Akiyama, Kenji Narumi, Takashi Ishida, Mamoru Shoji +2 more | 2007-01-02 |
| 7088668 | Optical recording medium with address information composed of pits | Tetsuya Akiyama, Kenichi Nishiuchi, Tomoyoshi Miyake, Masahiko Tsukuda | 2006-08-08 |
| 7088656 | Method for optically recording information and device for optically recording information by the same | Kenji Narumi, Tetsuya Akiyama, Kenichi Nishiuchi | 2006-08-08 |
| 6975571 | Method for optically recording information and device for optically recording information by the same | Kenji Narumi, Tetsuya Akiyama, Kenichi Nishiuchi | 2005-12-13 |
| 6906988 | Method and apparatus for recording/reproducing information with respect to optical recording medium | Kenichi Nishiuchi, Tetsuya Akiyama, Kenji Narumi, Takashi Ishida, Mamoru Shoji +2 more | 2005-06-14 |
| 6762985 | Optical recording method and optical recording device | Kenichi Nishiuchi, Yuuichi Kamioka, Norifumi Oda | 2004-07-13 |
| 6661749 | Substrate for optical recording medium, optical recording medium, master disc, master disc recording apparatus, and signal generating apparatus | Kenichi Nishiuchi, Tetsuya Akiyama | 2003-12-09 |
| 6584054 | Optical recording method and optical recording device | Kenichi Nishiuchi, Yuuichi Kamioka, Norifumi Oda | 2003-06-24 |
| 6535468 | OPTICAL RECORDING MEDIUM HAVING AN AREA FOR RECORDING A PLURALITY OF RECORDING/REPRODUCTION CONDITIONS TO BE USED IN RECORDING/REPRODUCTION APPARATUSES AND RECORDING/REPRODUCTION METHOD AND APPARATUS THEREFOR | Tetsuya Akiyama, Kenichi Nishiuchi, Kenji Narumi, Hiroyuki Yamaguchi | 2003-03-18 |
| 6469964 | Optical recording medium and recording/reproduction method and apparatus therefor | Tetsuya Akiyama, Kenichi Nishiuchi, Kenji Narumi, Hiroyuki Yamaguchi | 2002-10-22 |
| 6414922 | OPTICAL RECORDING MEDIUM HAVING AN AREA FOR RECORDING A PLURALITY OF RECORDING/REPRODUCTION CONDITIONS TO BE USED IN RECORDING/REPRODUCTION APPARATUSES AND RECORDING/REPRODUCTION METHOD AND APPARATUS THEREFORE | Tetsuya Akiyama, Kenichi Nishiuchi, Kenji Narumi, Hiroyuki Yamaguchi | 2002-07-02 |
| 6411575 | OPTICAL RECORDING MEDIUM HAVING AN AREA FOR RECORDING A PLURALITY OF RECORDING/REPRODUCTION CONDITIONS TO BE USED IN RECORDING/REPRODUCTION APPARATUSES AND RECORDING/REPRODUCTION METHOD AND APPARATUS THEREFOR | Tetsuya Akiyama, Kenichi Nishiuchi, Kenji Narumi, Hiroyuki Yamaguchi | 2002-06-25 |
| 6388984 | Optical information recording medium and its recording and reproducing method | Hideki Kitaura, Noboru Yamada, Ken'ichi Nagata, Kenichi Nishiuchi | 2002-05-14 |
| 6345026 | Optical recording method and optical recorder | Kenichi Nishiuchi, Yuuichi Kamioka, Norifumi Oda | 2002-02-05 |
| 6343062 | Optical disk device and optical disk for recording and reproducing high-density signals | Kenichi Nishiuchi, Takashi Ishida | 2002-01-29 |
| 6172946 | Optical recording device for adjusting the rotation rate of recording medium during seeking operation | Kenichi Nishiuchi | 2001-01-09 |
| 6060221 | Method and apparatus for initializing optical recording medium | Katsumi Kawahara, Noboru Yamada, Kenichi Nishiuchi | 2000-05-09 |
| RE36383 | Optical recording medium and production process for the medium | Kazumi Yoshioka, Takeo Ohta, Masami Uchida, Katsumi Kawahara | 1999-11-09 |
| 5753334 | Optical recording medium | Kazumi Yoshioka, Takeo Ohta, Katsumi Kawahara | 1998-05-19 |