Issued Patents All Time
Showing 101–121 of 121 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7298644 | Magnetoresistance effect device having crystal grain boundary and method of manufacturing the same | Katsuya Nishiyama | 2007-11-20 |
| 7272107 | Optical recording medium having super resolution layer | Katsutaro Ichihara, Akira Kikitsu | 2007-09-18 |
| 7193890 | Magnetoresistive effect device, magnetic random access memory, and magnetoresistive effect device manufacturing method | Sumio Ikegawa | 2007-03-20 |
| 7190613 | Magnetic random access memory device having thermal agitation property and high write efficiency | Hiroaki Yoda, Masatoshi Yoshikawa, Tadashi Kai, Tatsuya Kishi, Hisanori Aikawa +1 more | 2007-03-13 |
| 7081328 | Optical disk having super-resolution film | Kenji Todori, Katsutaro Ichihara, Naoko Kihara | 2006-07-25 |
| 7054087 | Magnetic recording-reproducing apparatus | Tadashi Kai, Akira Kikitsu, Tomoyuki Maeda, Junichi Akiyama | 2006-05-30 |
| 6972992 | Tunneling magnetoresistive random access memory with a multilayer fixed layer | Yoshiaki Fukuzumi | 2005-12-06 |
| 6972923 | Magnetic recording medium and magnetic recording/reproducing apparatus using the same | Junichi Akiyama, Akira Kikitsu, Tadashi Kai, Tomoyuki Maeda, Hisanori Aikawa | 2005-12-06 |
| 6930847 | Magnetic recording-reproducing apparatus | Tadashi Kai, Akira Kikitsu, Tomoyuki Maeda, Junichi Akiyama | 2005-08-16 |
| 6830824 | Magnetic recording medium with multiple magnetic layers capable of being exchange coupled at elevated temperatures and magnetic recording apparatus | Akira Kikitsu, Junichi Akiyama, Katsutaro Ichihara, Tadashi Kai, Tomoyuki Maeda | 2004-12-14 |
| 6826144 | Optical recording medium, optical recording and/or reproducing method, and optical recording and/or reproducing system | Katsutaro Ichihara, Akira Kikitsu | 2004-11-30 |
| 6795380 | Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus | Junichi Akiyama, Akira Kikitsu, Tadashi Kai, Tomoyuki Maeda | 2004-09-21 |
| 6777078 | Magnetic recording medium with L10 crystal grains including three or more elements | Tomoyuki Maeda, Akira Kikitsu, Junichi Akiyama | 2004-08-17 |
| 6744717 | Optical disk and optical disk drive | Katsutaro Ichihara, Akiko Hirao, Hideyuki Nishizawa | 2004-06-01 |
| 6738335 | Optical recording medium, reproducing method, and reproducing apparatus | Kenji Todori, Katsutaro Ichihara | 2004-05-18 |
| 6606291 | Optical disk and optical disk drive | Katsutaro Ichihara, Akiko Hirao, Hideyuki Nishizawa | 2003-08-12 |
| 6554972 | Information recording medium and its manufacturing method | Katsutaro Ichihara, Sumio Ashida, Keiichiro Yusu, Naomasa Nakamura | 2003-04-29 |
| 6385162 | Optical disk | Katsutaro Ichihara | 2002-05-07 |
| 6339582 | Optical disk and recording/reproducing method thereof | Katsutaro Ichihara | 2002-01-15 |
| 6296915 | Optical recording medium | Keiichiro Yusu, Sumio Ashida, Akira Kikitsu, Katsutaro Ichihara, Naomasa Nakamura +2 more | 2001-10-02 |
| 6187406 | Optical disk and optical disk drive | Katsutaro Ichihara, Akiko Hirao, Hideyuki Nishizawa | 2001-02-13 |