Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7376057 | Disk recording apparatus and disk recording method | Hiroshi Hirayama, Takahiro Sunada | 2008-05-20 |
| 7349302 | Optical disk recording apparatus and optical disk recording method | Yutaka Nagai | 2008-03-25 |
| 7215612 | Disk recording apparatus and disk recording method | Hiroshi Hirayama, Takahiro Sunada | 2007-05-08 |
| 7023654 | Disk cartridge ejection mechanism and method | Kouichi Eguro, Katsumi Fujiwara | 2006-04-04 |
| 6954410 | Information recording and reproducing apparatus for updating the waveform of a laser based on position information | Takashi Hoshino, Toshimitsu Kaku, Akihiro Asada | 2005-10-11 |
| 6442118 | Information recording and reproducing apparatus having semiconductor laser drive circuitry in its pickup | Takashi Hoshino, Toshimitsu Kaku, Akihiro Asada | 2002-08-27 |
| 6295258 | Method for recording and reproducing information by pre-pits detection | Toshimitsu Kaku, Toru Kawashima, Hisataka Sugiyama, Yosiho Suzuki, Tetsuya Fushimi | 2001-09-25 |
| 6188654 | Method and apparatus for recording/reproducing by pre-pits detection | Toshimitsu Kaku, Toru Kawashima, Hisataka Sugiyama, Yosiho Suzuki, Tetsuya Fushimi | 2001-02-13 |
| 5523991 | Data recording/reproducing device | Takuya Mizokami, Atsushi Saito, Naozane Yoshida | 1996-06-04 |
| 5519683 | Information recording/reproducing device and method in which a resynchronization signal is inserted into the data at predetermined intervals | Takuya Mizokami, Atsushi Saito, Naozane Yoshida | 1996-05-21 |
| 5383171 | Information recording/reproducing device and method for recording/reproducing information on a recording medium using accurate synchronization in a data area in which coded data is stored | Takuya Mizokami, Atsushi Saito, Naozane Yoshida | 1995-01-17 |
| 5258965 | Photo-magnetic disk driving apparatus | Mitsuru Watanabe | 1993-11-02 |
| 5229986 | Data recording/reproducing device | Takuya Mizokami, Atsushi Saito, Naozane Yoshida | 1993-07-20 |