Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9407894 | Information recording/play-backing apparatus | Hiroaki Ono | 2016-08-02 |
| 8478102 | Information recording/play-backing apparatus | Hiroaki Ono | 2013-07-02 |
| 7663993 | Disk device for recording and reproducing disks with adaptive rotation control | — | 2010-02-16 |
| 7664368 | Information recording/play-backing apparatus | Hiroaki Ono | 2010-02-16 |
| 7457521 | Video disc recording and reproducing apparatus, and method using the same | Tamotsu Ito, Masahiro Kageyama | 2008-11-25 |
| 6701063 | Video disc recording and reproducing apparatus, and method using the same | Tamotsu Ito, Masahiro Kageyama | 2004-03-02 |
| 6697563 | Information recording medium, motion-picture voice recording/reproducing apparatus, and motion-picture voice recording/reproducing method | Tsukasa Hasegawa, Tamotsu Ito, Masahiro Kageyama, Shinichiro Fukushima | 2004-02-24 |
| 5886969 | High-density information recording/reproducing method | Takeshi Maeda, Hisataka Sugiyama, Hiroyuki Awano, Harukazu Miyamoto, Keikichi Andoo +5 more | 1999-03-23 |
| 5854870 | Short-wavelength laser light source | Sten Helmfrid, Kenchi Ito, Kimio Tatsuno, Kazumi Kawamoto, Tetsuo Andou +5 more | 1998-12-29 |
| 5835469 | High-density information recording/reproducing method | Takeshi Maeda, Hisataka Sugiyama, Hiroyuki Awano, Harukazu Miyamoto, Keikichi Andoo +5 more | 1998-11-10 |
| 5615199 | Optical head apparatus | Kimio Tatsuno, Takeshi Shimano, Hiroshi Fukuda | 1997-03-25 |