| 8031575 |
Optical pickup device and recording/reproducing device |
Kimihiro Saito |
2011-10-04 |
| 8018827 |
Solid immersion lens and focusing lens, optical pickup device, and data recording/reproducing apparatus using the same |
Sunmin KIM, Tsutomu Ishimoto, Takao Kondo |
2011-09-13 |
| 7940606 |
Signal detecting device and signal detecting method |
Naoto Kojima, Koji Sekiguchi, Osamu Kawakubo, Kazuhiko Fujiie |
2011-05-10 |
| 7583580 |
Optical recording medium as well as optical recording and reproduction method |
Kimihiro Saito, Takeshi Yamasaki |
2009-09-01 |
| RE40136 |
Multilayer optical disk |
Masahiko Kaneko, Nobuhiko Umezu, Katsuhisa Aratani |
2008-03-04 |
| 6922376 |
Sil magneto-optic transducer having thin film magnetic coil and holded magnetic core |
Kenji Yamamoto, Akira Kouchiyama, Akira Suzuki |
2005-07-26 |
| 6537637 |
Multilayer optical disk |
Masahiko Kaneko, Nobuhiko Umezu, Katsuhisa Aratani |
2003-03-25 |
| 6324148 |
Optical disk and optical information recording/reproducing apparatus |
Masahiko Kaneko, Katsuhisa Aratani |
2001-11-27 |
| 6241843 |
Multilayer optical disk |
Masahiko Kaneko, Nobuhiko Umezu, Katsuhisa Aratani |
2001-06-05 |
| 6243327 |
Magneto-optical disk system having a relation between a numerical aperture of an objective lens and the thickness of a cover layer |
Kimihiro Saito |
2001-06-05 |
| 6132862 |
Magneto-optical recording medium |
Shintaro Tanaka, Takashi Shimouma, Masahiko Kaneko |
2000-10-17 |
| 6064632 |
Recording/reproducing apparatus and a magneto-optical recording medium for use therewith |
Katsuhisa Aratani, Akira Kouchiyama |
2000-05-16 |
| 6023451 |
Optical recording medium and optical disk apparatus |
Toshiyuki Kashiwagi, Osamu Kawakubo, Masahiko Kaneko |
2000-02-08 |
| 5989670 |
Multilayer optical disk |
Masahiko Kaneko, Nobuhiko Umezu, Katsuhisa Aratani |
1999-11-23 |
| 5978320 |
Recording/reproducing apparatus for use with a photomagnetic recording medium |
Katsuhisa Aratani, Akira Kouchiyama |
1999-11-02 |
| 5766717 |
Multilayer optical disk |
Masahiko Kaneko, Nobuhiko Umezu, Katsuhisa Aratani |
1998-06-16 |
| 5761187 |
Multi-layer optical disk |
Masahiko Kaneko, Katsuhisa Aratani |
1998-06-02 |
| 5726970 |
Multi-layer optical recording medium |
Masahiko Kaneko, Tetsuhiro Sakamoto |
1998-03-10 |
| 5353171 |
Magneto-optical recording apparatus |
Kayoko Suzuki, Yoshihiro Muto |
1994-10-04 |
| 4878132 |
Thermomagnetic recording method applying power modulated laser on a magnetically coupled multi-layer structure of perpendicular anisotropy magnetic film |
Katsuhisa Aratani, Tomiji Tanaka |
1989-10-31 |