Issued Patents All Time
Showing 1–25 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11063509 | Step-up switching power supply circuit | — | 2021-07-13 |
| 8391113 | Optical disc for tuple-speed recording and optical disc device for tuple-speed recording | Morio Nakatani, Masato Fuma, Kazuo Watabe, Yutaka Kashihara, Akihito Ogawa +2 more | 2013-03-05 |
| 8331208 | Information readout device and information readout method | — | 2012-12-11 |
| 7835256 | Two-layer optical disk and recording/reproducing optical disk apparatus of the two-layer optical disk | Shuichi Ohkubo, Kazuo Watabe, Yutaka Kashihara, Akihito Ogawa | 2010-11-16 |
| 7817528 | Optical disk medium and optical disk apparatus | Kinji Kayanuma, Chosaku Noda, Hiroharu Satoh, Hideaki Ohsawa | 2010-10-19 |
| 7791987 | Recording type optical disc medium and optical disc device for the same | — | 2010-09-07 |
| 7643394 | Optical disk, optical disk recording method, and optical disk recording apparatus | Yutaka Kashihara, Hideki Takahashi, Akihito Ogawa, Shigeru Shimonou, Tatsunori Ide +3 more | 2010-01-05 |
| 7551533 | Optical disk, optical disk drive and method of playing back an optical disk | Yutaka Kashihara, Atsushi Ishihara, Yuji Nagai, Taku Kato, Tatsunori Ide | 2009-06-23 |
| 7492696 | Optical disk medium and optical disk apparatus | Kinji Kayanuma, Chosaku Noda, Hiroharu Satoh, Hideaki Ohsawa | 2009-02-17 |
| 7492697 | Optical disc recording method and apparatus | Tsuyoshi Yamamoto, Katsuki Hattori, Masato Fuma, Tatsunori Ide, Shigeru Shimonou +3 more | 2009-02-17 |
| 7474599 | Optical disc medium, and apparatus and method for recording data on the same | — | 2009-01-06 |
| 7471617 | Optical disc medium having extended record control data areas, optical disc apparatus using the same, and data recording method on the same | Shigeru Shimonou, Tatsunori Ide, Hideki Takahashi, Akihito Ogawa, Yutaka Kashihara | 2008-12-30 |
| 7471602 | Recording/reproducing method and recording/reproducing apparatus and optical disk | Akihito Ogawa, Yutaka Kashihara, Hideki Takahashi, Shigeru Shimonou, Tatsunori Ide | 2008-12-30 |
| 7391708 | Optical disc and method for reproducing the same | — | 2008-06-24 |
| 7355942 | Optical disk and optical disk drive for suppressing a digital sum value and low-frequency components | Akira Mashimo | 2008-04-08 |
| 7355957 | Optical disc medium having a system information recording area of low recording density | Toshiaki Iwanaga, Tatsunori Ide, Chosaku Noda, Yutaka Kashihara, Akihito Ogawa +1 more | 2008-04-08 |
| 7336576 | Optical disk medium and optical disk recording/reproducing apparatus utilizing tilt detection areas having special marks | Ryuichi Katayama, Takeharu Shibatoko, Masatsugu Ogawa, Daisuke Eto, Chosaku Noda +2 more | 2008-02-26 |
| 7327643 | Radial tilt compensating optical disk apparatus using tracking control loop gain | Naotoshi Iwazawa, Ryuichi Katayama, Masahumi Miura, Motoaki Shimizu | 2008-02-05 |
| 7196984 | Optical disk medium and optical disk recording and reproducing apparatus | Chosaku Noda, Hiroharu Sato, Hideaki Ohsawa, Kinji Kayanuma, Toshiaki Iwanaga | 2007-03-27 |
| 7068588 | Optical disk medium having a predetermined change in the tilt of the surface | — | 2006-06-27 |
| 6993753 | Compiler for parallel computer | Takahiro Ishikawa | 2006-01-31 |
| 6912186 | Data recording/reproducing method for optical disk and apparatus for the same | — | 2005-06-28 |
| 6791927 | Optical head having optimum tilt angles | — | 2004-09-14 |
| 6771584 | Optical disk, aberration correction method and optical disk apparatus | — | 2004-08-03 |
| 6424436 | Holographic element | — | 2002-07-23 |