Issued Patents All Time
Showing 25 most recent of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10276192 | Perpendicular magnetic recording medium | Ikuko Takekuma, Junichi Sayama | 2019-04-30 |
| 9472228 | Perpendicular magnetic recording media having novel magnetic under-layer structure | Ikuko Takekuma, Hiroyuki Matsumoto, Oleksandr Mosendz | 2016-10-18 |
| 9117477 | Perpendicular magnetic recording media having novel seed layer | Ikuko Takekuma, Hiroaki Nemoto | 2015-08-25 |
| 8703307 | Perpendicular magnetic recording medium and magnetic storage apparatus using the same | Yotsuo Yahisa, Ichiro Tamai | 2014-04-22 |
| 8592060 | Perpendicular magnetic recording media having low medium noise and systems using the same | Ichiro Tamai, Yotsuo Yahisa, Kiwamu Tanahashi | 2013-11-26 |
| 8514684 | Multilayer optical disc for easy positioning of a focused beam | Yoshinori Ishikawa, Harukazu Miyamoto | 2013-08-20 |
| 8315147 | Multilayer optical recording medium having three or more recording layers with reduced interlayer crosstalk | Shigeharu Kimura, Takahiro Kurokawa | 2012-11-20 |
| 8134905 | Information storage device and storage media | Takao Watanabe, Toshimichi Shintani, Takeshi Maeda, Tomonori Sekiguchi | 2012-03-13 |
| 8089841 | Reproducing signal measuring method, signal reproducing apparatus, and optical recording medium | Junko Ushiyama, Hiroyuki Minemura, Takahiro Kurokawa, Harukazu Miyamoto | 2012-01-03 |
| 8040712 | Information memory device and memory medium | Takao Watanabe, Toshimichi Shintani, Takeshi Maeda, Yoshitaka Bito | 2011-10-18 |
| 7948861 | Optical disk and recording method of visible figures into optical disk | — | 2011-05-24 |
| 7911930 | Information recording media, a method for recording/reproducing information, an apparatus for recording/reproducing information | Harukazu Miyamoto, Takeshi Maeda | 2011-03-22 |
| 7911910 | Information recording method and apparatus with suppressed mark edge jitters | Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more | 2011-03-22 |
| 7907491 | Information recording method and apparatus with suppressed mark edge jitters | Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more | 2011-03-15 |
| 7907490 | Information recording method and apparatus with suppressed mark edge jitters | Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more | 2011-03-15 |
| 7876667 | Optical information recording medium, and information recording method and information reproducing method using the same | Toshimichi Shintani, Yumiko Anzai, Hiromi Kudo | 2011-01-25 |
| 7852740 | Information recording medium storing system and storing case | Yumiko Anzai, Masaki Mukoh, Youichi Horii, Hiroko Sukeda, Rieko Otsuka +1 more | 2010-12-14 |
| 7852727 | Information recording method and apparatus with suppressed mark edge jitters | Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more | 2010-12-14 |
| 7821884 | Information recording and retrieval method, and its apparatus | Takeshi Maeda, Takeshi Shimano, Harukazu Miyamoto | 2010-10-26 |
| 7684301 | Information recording method and apparatus with suppressed mark edge jitters | Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more | 2010-03-23 |
| 7601412 | Information recording medium, information reproduction method and information recording method | Yumiko Anzai | 2009-10-13 |
| 7584150 | Recording method, recording medium, and recording system | Harukazu Miyamoto, Yoshiko Nishi | 2009-09-01 |
| 7570575 | Information recording media, a method for recording/reproducing information, an apparatus for recording/reproducing information | Harukazu Miyamoto, Takeshi Maeda | 2009-08-04 |
| 7417933 | Information recording method and apparatus with suppressed mark edge jitters | Makoto Miyamoto, Tsuyoshi Toda, Masatoshi Ohtake, Motoyasu Terao, Junko Ushiyama +4 more | 2008-08-26 |
| 7391710 | Information recording media, a method for recording/reproducing information, an apparatus for recording/reproducing information | Harukazu Miyamoto, Takeshi Maeda | 2008-06-24 |