Issued Patents All Time
Showing 25 most recent of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10079032 | Device and recording apparatus | Katsumi Yoshizawa, Satoshi Sugiura, Takayuki Kasuya | 2018-09-18 |
| 9028070 | Light emitting element having structural bodies arrayed at a first pitch along a first direction and arrayed at a second pitch different from said first pitch along a second direction and projection display device provided with same | Mizuho Tomiyama | 2015-05-12 |
| 9016883 | Polarized light emitting element for display apparatus | — | 2015-04-28 |
| 8866172 | Light emitting element and image display apparatus using the light emitting element | — | 2014-10-21 |
| 8807769 | Wavelength plate, light emitting element, and image display device using the light emitting element | — | 2014-08-19 |
| 8779454 | Light emitting element and image display device using the light emitting element | — | 2014-07-15 |
| 8643050 | Light emitting element and image display apparatus using the light emitting element | — | 2014-02-04 |
| 8254238 | Optical information recording/ reproducing apparatus and optical information recording and reproducing method | — | 2012-08-28 |
| 8238219 | Optical information recording/reproducing device, optical unit, and optical information recording method | Shin Tominaga | 2012-08-07 |
| 8045442 | Optical information recording/ reproducing device and optical information recording/ reproducing method | — | 2011-10-25 |
| 8036092 | Optical head device for detecting an error signal and an optical information recording/reproducing device | — | 2011-10-11 |
| 7948854 | Optical head apparatus and optical information recording/reproducing apparatus | — | 2011-05-24 |
| 7787348 | Optical head apparatus and optical information recording or reproducing apparatus | — | 2010-08-31 |
| 7755991 | Method for detecting radial tilt of optical recording medium in optical head device, optical head device, and optical information recording/reproducing device | — | 2010-07-13 |
| 7715296 | Optical head device and optical recording and reproducing apparatus | — | 2010-05-11 |
| 7710849 | Optical head device and optical information recording or reproducing device | — | 2010-05-04 |
| 7622696 | Optical head device, optical information recording/reproducing apparatus and operation method of optical information recording/reproducing apparatus | — | 2009-11-24 |
| 7599276 | Optical head device and optical information recording/reproduction apparatus | — | 2009-10-06 |
| 7564762 | Optical head device and optical information recording or reproducing device | — | 2009-07-21 |
| 7542401 | Birefringence characteristic measuring method, optical recording medium and optical information recording/reproducing apparatus | — | 2009-06-02 |
| 7414951 | Optical head device and optical recording and reproducing apparatus | — | 2008-08-19 |
| 7411882 | Optical head device and optical information recording/reproducing device | — | 2008-08-12 |
| 7355932 | Optical disk device for detecting thickness errors of the transparent substrate | Hidekazu Shirakawa | 2008-04-08 |
| 7336576 | Optical disk medium and optical disk recording/reproducing apparatus utilizing tilt detection areas having special marks | Yutaka Yamanaka, 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, Yutaka Yamanaka, Masahumi Miura, Motoaki Shimizu | 2008-02-05 |