Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8850282 | Verifying device, imaging device having verifying function, and verifying method | Kengo Yasumura, Naoki Fujimoto, Yasuhiro Sasano | 2014-09-30 |
| 8676026 | Data recording apparatus | Naoki Fujimoto, Kengo Yasumura, Keigo Sato | 2014-03-18 |
| 7864637 | Optical disc recording and reproducing apparatus and disc autochanger | Takashi Yoshida, Toshihiko Shimizu, Yukinobu Abe, Yutaka Watanabe | 2011-01-04 |
| 7434241 | Recording and reproducing apparatus of thin optical disc | Norio Ota, Osamu Ishizaki | 2008-10-07 |
| 7110327 | Magneto-optical recording and reproducing method, using reproducing layer with high saturation magnetization | Hiroki Takao, Yuji Yamazaki, Susumu Imai, Katsusuke Shimazaki | 2006-09-19 |
| 6904002 | Magneto-optical reproducing method using a plurality of different reproducing beams | Katsusuke Shimazaki, Hiroki Takao, Norio Ohta, Akiyoshi Itou, Katsuji Nakagawa | 2005-06-07 |
| 6893746 | Magnetic recording medium with high thermal stability, method for producing the same, and magnetic recording apparatus | Fumiyoshi Kirino, Norio Ohta, Kouichirou Wakabayashi, Teruaki Takeuchi, Harumi Hieida +5 more | 2005-05-17 |
| 6847590 | Magneto-optical recording medium including a calibration magnetic domain recorded in a predetermined pattern in a recording layer | Atsushi Yamaguchi, Naoyuki Takagi, Yoshiharu Uchihara, Satoshi Sumi, Hiroshi Shirai +2 more | 2005-01-25 |
| 6781926 | Magneto-optical head having heat sink layer | Osamu Ishizaki, Katsusuke Shimazaki, Reiji Tamura, Tsuyoshi Maro, Toshinori Sugiyama | 2004-08-24 |
| 6693854 | Reproducing method and reproducing apparatus for magneto-optical recording medium | Katsusuke Shimazaki, Susumu Imai, Norio Ohta, Masafumi Yoshihiro, Hitoshi Watanabe +1 more | 2004-02-17 |
| 6674693 | Recording method, reproducing method and recording and reproducing apparatus for magneto-optical recording medium | Yuji Yamazaki, Masaki Sekine | 2004-01-06 |
| 6657927 | Optical head and apparatus provided therewith | Hitoshi Watanabe | 2003-12-02 |
| 6633514 | Magneto-optical reproducing method using a plural of different reproducing beams | Katsusuke Shimazaki, Hiroki Takao, Norio Ohta, Akiyoshi Itou, Katsuji Nakagawa | 2003-10-14 |
| 6628574 | Reproducing method and reproducing apparatus using plural light beam powers for transferring a magnetic domain | Katsusuke Shimazaki, Hitoshi Watanabe, Masahumi Yoshihiro, Norio Ohta | 2003-09-30 |
| 6611487 | Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same | Takeshi Shimano, Kenchi Ito, Yooji Maruyama | 2003-08-26 |
| 6584044 | Magneto-optical recording apparatus using multiple magnetic field strengths for recording different mark lengths | Manabu Tani, Masafumi Yoshihiro, Masaki Sekine | 2003-06-24 |
| 6556516 | Reproducing method and reproducing apparatus for magneto-optical recording medium using different radiation patterns | Katsusuke Shimazaki, Susumu Imai, Norio Ohta, Masafumi Yoshihiro, Hitoshi Watanabe +1 more | 2003-04-29 |
| 6477118 | METHOD AND APPARATUS FOR RECORDING AND REPRODUCING INFORMATION BY APPLYING FIELD IN A DIRECTION OTHER THAN THE DIRECTION OF MAGNETIZATION OR THE DIRECTION TO A SURFACE OF AN INFORMATION RECORDING MEDIUM | Masaki Sekine, Manabu Tani, Masafumi Yoshihiro, Hiroshi Ido | 2002-11-05 |
| 6455174 | Magnetic recording medium, recording and reproducing head, and magnetic recording and reproducing method | Hiroki Takao, Yuji Yamazaki, Susumu Imai, Katsusuke Shimazaki | 2002-09-24 |
| 6424601 | Magneto-optical recording media having an auxiliary magnetic layer | Satoru Oonuki, Masafumi Yoshihiro, Nobuyuki Nagai, Katsusuke Shimazaki, Hiroshi Shirai +3 more | 2002-07-23 |
| 6388954 | Magneto-optical recording medium having clock-marks on recording layer and apparatus for recording and reproducing same | Katsusuke Shimazaki, Hiroki Takao, Norio Ohta, Akiyoshi Itou, Katsuji Nakagawa +3 more | 2002-05-14 |
| 6385141 | Magneto-optical recording method capable of adjusting the sizes magnetic domain | Manabu Tani, Masafumi Yoshihiro, Masaki Sekine | 2002-05-07 |
| 6301199 | Magneto-optical recording medium and recording/reproducing apparatus therefor in which recorded magnetic domains are transferred from the recording layer to the reproducing layer | Atsushi Yamaguchi, Naoyuki Takagi, Yoshiharu Uchihara, Satoshi Sumi, Hiroshi Shirai +2 more | 2001-10-09 |
| 6185177 | Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same | Takeshi Shimano, Kenchi Ito, Yooji Maruyama | 2001-02-06 |
| 5995474 | Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same | Takeshi Shimano, Kenchi Ito, Yooji Maruyama | 1999-11-30 |