Issued Patents All Time
Showing 76–100 of 144 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6388984 | Optical information recording medium and its recording and reproducing method | Hideki Kitaura, Noboru Yamada, Ken'ichi Nagata, Shigeaki Furukawa | 2002-05-14 |
| 6345026 | Optical recording method and optical recorder | Shigeaki Furukawa, Yuuichi Kamioka, Norifumi Oda | 2002-02-05 |
| 6343062 | Optical disk device and optical disk for recording and reproducing high-density signals | Shigeaki Furukawa, Takashi Ishida | 2002-01-29 |
| 6298075 | Optical apparatus and method for producing the same | Yasuo Kitaoka, Kazuhisa Yamamoto, Makoto Kato, Kiminori Mizuuchi | 2001-10-02 |
| 6229785 | Optical information recording medium, its manufacturing method, optical information recording/reproducing method and optical information recorder/reproducer | Hideki Kitaura, Ken'ichi Nagata, Noboru Yamada | 2001-05-08 |
| 6226239 | Optical information recording and reproducing apparatus for multiple layer recording medium | Ken'ichi Nagata, Nobuo Akahira | 2001-05-01 |
| 6172946 | Optical recording device for adjusting the rotation rate of recording medium during seeking operation | Shigeaki Furukawa | 2001-01-09 |
| 6163514 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-12-19 |
| 6122236 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-09-19 |
| 6115343 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-09-05 |
| 6111836 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-08-29 |
| 6108288 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-08-22 |
| 6108287 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-08-22 |
| 6108290 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-08-22 |
| 6104683 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-08-15 |
| 6097682 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-08-01 |
| 6088316 | Method and apparatus for writing and reading optical recording medium | Kenji Narumi | 2000-07-11 |
| 6069904 | Optical apparatus and method for producing the same | Yasuo Kitaoka, Kazuhisa Yamamoto, Makoto Kato, Tomoaki Uno, Kiminori Mizuuchi | 2000-05-30 |
| 6067393 | Optical apparatus and method for producing the same | Yasuo Kitaoka, Kazuhisa Yamamoto, Makoto Kato, Tomoaki Uno, Kiminori Mizuuchi | 2000-05-23 |
| 6060221 | Method and apparatus for initializing optical recording medium | Shigeaki Furukawa, Katsumi Kawahara, Noboru Yamada | 2000-05-09 |
| 6031814 | Optical disk with stop-pulse generating means in a guide groove | Ken'ichi Nagata, Eiji Ohno, Nobuo Akahira, Kenji Narumi | 2000-02-29 |
| 6031800 | Method for writing and reading optical recording medium with varying writing start points | Kenji Narumi | 2000-02-29 |
| 6027594 | Method of manufacturing optical information recording medium | Ken'ichi Nagata, Nobuo Akahira | 2000-02-22 |
| 5960259 | Optical apparatus and method for producing the same | Yasuo Kitaoka, Kazuhisa Yamamoto, Makoto Kato, Tomoaki Uno, Kiminori Mizuuchi | 1999-09-28 |
| 5956308 | Data storage apparatus | Nobuo Akahira, Eiji Ohno, Kenichi Nagata, Noboru Yamada | 1999-09-21 |