Issued Patents All Time
Showing 26–50 of 91 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8116184 | Recording/reproducing device and method using pulse sequences, and information recording medium | Yoshihisa Adachi, Atsushi Etoh | 2012-02-14 |
| 8102751 | Optical recording condition setting method, optical recording/reproducing device, control program, and recording medium | Yoshihisa Adachi | 2012-01-24 |
| 8072856 | Recording/reproducing device and method using pulse sequences, and information recording medium | Yoshihisa Adachi, Atsushi Etoh | 2011-12-06 |
| 8072864 | Recording/reproducing device and method using pulse sequences and information recording medium | Yoshihisa Adachi, Atsushi Etoh | 2011-12-06 |
| 7903519 | Recording mark formation method, information recording device, information recording method, and information recording medium | Atsushi Etoh, Yoshihisa Adachi, Mitsuo Ishii, Hiroyasu Inoue, Masaki Aoshima | 2011-03-08 |
| 7835254 | Optical recording condition setting method, optical recording/reproducing device, control program, and recording medium | Yoshihisa Adachi | 2010-11-16 |
| 7474598 | Optical reproducing device that controls the strength of the light beam during reproduction | Tetsuya Okumura | 2009-01-06 |
| 7339864 | Method and apparatus for setting recording condition, recording and reproducing apparatus, recording condition setting program, and recording medium | Yoshihisa Adachi | 2008-03-04 |
| 7206351 | Signal evaluation devices and signal evaluation methods, signal quality evaluation methods and reproducing devices and recording devices | Tetsuya Okumura, Jun Akiyama, Tomiyuki Numata, Masanori Ushioda | 2007-04-17 |
| 7194674 | Adaptive waveform equalization for viterbi-decodable signal and signal quality evaluation of viterbi-decodable signal | Tetsuya Okumura | 2007-03-20 |
| 7061849 | Recording method of optical disk, optical disk recording apparatus, optical disk reproducing apparatus and optical disk | Takeshi Yamaguchi | 2006-06-13 |
| 7027370 | Optical recording device and optical recording method, control program for the optical recording device, and computer-readable recording medium recording the control program | Yoshihisa Adachi | 2006-04-11 |
| 6967917 | Optical disk and optical disk apparatus using spatially separated grooves and lands for recording tracks | Tomiyuki Numata | 2005-11-22 |
| 6909677 | Optical disk, optical reproduction device, and optical recording device | Jun Akiyama | 2005-06-21 |
| 6771576 | Optical reproduction apparatus | Tetsuya Okumura | 2004-08-03 |
| 6765860 | Optical disc and optical drive | Minoru Tobita, Toshiaki Hioki, Michio Matsuura | 2004-07-20 |
| 6751173 | Optical disk and optical disk apparatus | — | 2004-06-15 |
| 6741527 | Magneto-optical recording medium and magneto-optical recording and reproducing device capable of controlling reproduction power based on long recorded marks | Tetsuya Okumura | 2004-05-25 |
| 6674701 | Apparatus for readout of optical recording medium | Tetsuya Okumura | 2004-01-06 |
| 6600715 | Optical reproducing device and control method thereof | Tetsuya Okumura | 2003-07-29 |
| 6584050 | Optical recording device, optical reproducing device, and optical memory medium | Tetsuya Okumura | 2003-06-24 |
| 6404717 | Optical reproducing device and optical memory medium | Tetsuya Okumura, Hiroshi Fuji | 2002-06-11 |
| 6392970 | Reproducing light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording medium | Hiroshi Fuji, Tomoyuki Miyake, Yasuo Nakata, Nobuo Ogata, Jun Akiyama +3 more | 2002-05-21 |
| 6327240 | Optical disc and optical disc drive | Minoru Tobita, Toshiaki Hioki, Michio Matsuura | 2001-12-04 |
| 6201784 | Disk type recording medium having zones with address information recorded in grooves and recording and reproducing device therefor | — | 2001-03-13 |