Issued Patents All Time
Showing 51–75 of 118 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6522606 | Optical pickup servo control apparatus with stored compensatory values | Shigeyoshi Tanaka, Toru Ikeda, Takashi Masaki | 2003-02-18 |
| 6519210 | Optical storage apparatus having reproducing magnetic field correcting unit and recording and reproducing method of optical storage medium | Toru Ikeda | 2003-02-11 |
| 6515949 | Storage apparatus | Takashi Masaki | 2003-02-04 |
| 6512723 | Information storage apparatus having selective storage medium rotation stop operation | Shinya Kobayashi, Hideshi Mochizuki | 2003-01-28 |
| 6504802 | Tracking control method and storage unit | Wataru Tsukahara | 2003-01-07 |
| 6459220 | Spindle-motor control method, spindle-motor control device, spindle-motor drive circuit and disk device | Hideshi Mochizuki, Hiroshi Kumita, Tomoki Yokoyama | 2002-10-01 |
| 6452879 | Optical storage apparatus | Wataru Tsukahara, Toru Ikeda, Masatsugu Nishida | 2002-09-17 |
| 6385144 | Storage device with means for efficiently positioning a head on a disk including guard areas lacking position information | Toshio Kuriuzawa | 2002-05-07 |
| 6381204 | Power save mode control method and storage unit | Shinya Kobayashi | 2002-04-30 |
| 6377523 | Seek control method in optical storage device | — | 2002-04-23 |
| 6356515 | High power controlling system for magneto-optical storage system | Hiroshi Kumita, Yoshiyuki Nanba | 2002-03-12 |
| 6324128 | Optical storage apparatus and recording and reproducing method of optical storage medium | Toru Ikeda | 2001-11-27 |
| 6317401 | Optical disk apparatus with optical head cleaning | Takashi Masaki | 2001-11-13 |
| 6275462 | Optical storage apparatus | Takashi Masaki | 2001-08-14 |
| 6249496 | Optical storage apparatus | Wataru Tsukahara, Toru Ikeda | 2001-06-19 |
| 6249497 | Seek control method in optical storage device | — | 2001-06-19 |
| 6157599 | Optical storage apparatus | Tomonori Yamashita | 2000-12-05 |
| 6115338 | Optical storage apparatus | Takashi Masaki | 2000-09-05 |
| 6115350 | Optical disk having write power adjustment portion | Satoshi Furuta, Toru Fujiwara, Tadashi Sagawa, Masaharu Moritsugu | 2000-09-05 |
| 6067284 | Recording power adjustment for optical storage apparatus | Toru Ikeda | 2000-05-23 |
| 6055217 | Seek control method in optical storage device | — | 2000-04-25 |
| RE36590 | Apparatus and method for accurately scanning a light beam across tracks of a recording medium | — | 2000-02-29 |
| 6014349 | Storage apparatus using variable read clock frequencies for reading ZCAV recording medium | Masaaki Iwasaki, Shigeyoshi Tanaka | 2000-01-11 |
| 5933397 | Optical storage apparatus having track seek control unit providing improved seek performance | Tomonori Yamashita | 1999-08-03 |
| 5920534 | Optical disk apparatus | Satoshi Furuta, Toru Fujiwara, Tadashi Sagawa, Masaharu Moritsugu | 1999-07-06 |