Issued Patents All Time
Showing 26–50 of 103 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7290272 | Optical data recording disc with protrusion between clamping area and center hole | Kazuhiro Hayashi, Masanari Mohri | 2007-10-30 |
| 7195691 | Optical data recording medium and manufacturing method for the same | Kazuya Hisada, Kazuhiro Hayashi | 2007-03-27 |
| 7101593 | Method for producing a disk-shaped substrate and method for producing an optical disk | Kazuhiro Hayashi, Kazuya Hisada | 2006-09-05 |
| 7101588 | Apparatus and method for applying liquid material to form a resin layer | Eiichi Ito, Kazuya Hisada, Kazuhiro Hayashi, Shinya Abe | 2006-09-05 |
| 7095705 | Optical information recording medium and optical information recording and reproducing apparatus | Kenichi Nishiuchi, Naoyasu Miyagawa, Nobuo Akahira | 2006-08-22 |
| 7065776 | Optical data recording medium and manufacturing method for the same, and a method for clamping the optical data recording medium | Kazuhiro Hayashi, Masanari Mohri | 2006-06-20 |
| 7047545 | Optical disk, method for producing the same, and apparatus for producing the same | Kazuya Hisada, Kazuhiro Hayashi, Kazuo Inoue | 2006-05-16 |
| 7037413 | Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information | Mayumi Otoba, Noboru Yamada, Katsumi Kawahara, Hiroyuki Ohta, Ken'ichi Nagata | 2006-05-02 |
| 6982016 | Optical information recording medium and its manufacturing method and apparatus | Hidemi Isomura, Hideo Matsumoto, Kazuhiro Hayashi, Kazuya Hisada, Kazuo Inoue | 2006-01-03 |
| 6977018 | Optical information recording medium and its manufacturing method and apparatus | Hidemi Isomura, Hideo Matsumoto, Kazuhiro Hayashi, Kazuya Hisada, Kazuo Inoue | 2005-12-20 |
| 6975579 | Optical information recording medium and optical information recording and reproducing apparatus | Kenichi Nishiuchi, Naoyasu Miyagawa, Nobuo Akahira | 2005-12-13 |
| 6887547 | Optical information recording medium | Keiji Nishikiori | 2005-05-03 |
| 6863946 | Optical information recording medium, method for manufacturing the same, and method for recording and/or reproducing optical information | Kazuya Hisada, Kazuhiro Hayashi | 2005-03-08 |
| 6821707 | Optical information recording medium, producing method thereof and method of recording/erasing/reproducing information | Mayumi Uno, Noboru Yamada, Katsumi Kawahara, Hiroyuki Ohta, Ken'ichi Nagata | 2004-11-23 |
| 6743527 | Optical disk, method for producing the same, and apparatus for producing the same | Kazuya Hisada, Kazuhiro Hayashi, Kazuo Inoue | 2004-06-01 |
| 6743320 | Method and apparatus of optical information recording medium, and optical information recording medium | Kazuya Hisada, Kazuhiro Hayashi | 2004-06-01 |
| 6706359 | Optical information recording medium and method for manufacturing the same | Norihisa Mino, Hidemi Isomura | 2004-03-16 |
| 6707776 | Recording and reproducing method of optical information recording medium | Ken'ichi Nagata, Kenichi Nishiuchi, Nobuo Akahira, Kenji Narumi | 2004-03-16 |
| 6697313 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Ken'ichi Nagata, Kenichi Nishiuchi, Nobuo Akahira, Kenji Narumi | 2004-02-24 |
| 6683739 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Ken'ichi Nagata, Kenichi Nishiuchi, Nobuo Akahira, Kenji Narumi | 2004-01-27 |
| 6667937 | Optical information recording medium and optical information recording and reproducing apparatus | Kenichi Nishiuchi, Naoyasu Miyagawa, Nobuo Akahira | 2003-12-23 |
| 6660451 | Optical information recording medium | Yoshitaka Sakaue | 2003-12-09 |
| 6613170 | Optical information recording medium and its manufacturing method and apparatus | Hidemi Isomura, Hideo Matsumoto, Kazuhiro Hayashi, Kazuya Hisada, Kazuo Inoue | 2003-09-02 |
| 6532209 | Optical information recording medium and optical information recording and reproducing apparatus | Kenichi Nishiuchi, Naoyasu Miyagawa, Nobuo Akahira | 2003-03-11 |
| 6487151 | Optical information recording and reproducing system with overwrite capability and recording medium for use therewith | Ken'ichi Nagata, Kenichi Nishiuchi, Nobuo Akahira, Kenji Narumi | 2002-11-26 |