Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9158151 | Surface light-emitting unit and display device provided with the same | Mitsuru Hineno, Shinji Suminoe | 2015-10-13 |
| 8297784 | Surface-emission unit and method for producing the same | Toshiya Ishio, Mitsuru Hineno, Shinji Suminoe | 2012-10-30 |
| 7848207 | Optical pickup | Sumito Nishioka, Ikuo Nakano | 2010-12-07 |
| 7821902 | Aberration detection device and optical pickup device provided with same | — | 2010-10-26 |
| 7697396 | Optical integrated unit and optical pickup device including same | — | 2010-04-13 |
| 7606134 | Optical pickup | Sumito Nishioka, Ikuo Nakano | 2009-10-20 |
| 7522508 | Optical pickup | Sumito Nishioka, Ikuo Nakano | 2009-04-21 |
| 7471610 | Optical pickup | Sumito Nishioka, Ikuo Nakano | 2008-12-30 |
| 7260047 | Optical pickup that uses light sources with different wavelengths for each of multiple recording mediums | Sumito Nishioka, Ikuo Nakano | 2007-08-21 |
| 7239603 | Recording medium with judging area for track area identification based on wobbling polarity | — | 2007-07-03 |
| 7075865 | Optical pickup | Sumito Nishioka | 2006-07-11 |
| 6930976 | Optical recording medium and optical pickup device | — | 2005-08-16 |
| 6687203 | Optical recording medium, optical recording and reproducing device, and recording and reproducing method for the optical recording medium | Chiaki Kiyooka | 2004-02-03 |
| 6614720 | Optical pickup device | Chiaki Kiyooka, Makoto Horiyama, Kohji Minami, Takahiro Miyake, Yasuo Nakata | 2003-09-02 |
| 6407968 | Optical information recording/reproducing apparatus having focus error signal compensation | Yasuo Nakata, Hiroshi Fuji | 2002-06-18 |
| 6392970 | Reproducing light quantity control method for optical memory device, and reproducing light quantity control device, and optical recording medium | Hiroshi Fuji, Shigemi Maeda, Tomoyuki Miyake, Yasuo Nakata, Jun Akiyama +3 more | 2002-05-21 |
| 5999502 | Optical information recording/reproducing apparatus having focus servo control compensation for lands and grooves | Yasuo Nakata, Kunio Kojima, Hideaki Sato | 1999-12-07 |
| 5940364 | Optical disk including wobbled guiding groove composed of pits, optical disk manufacturing apparatus, and optical disk recording/reproducing apparatus | Yasuo Nakata, Yoshihiro Sekimoto | 1999-08-17 |
| 5774428 | Method and apparatus for magneto-optical recording or reproducing using modulated magnetic field | Tomoyuki Miyake, Kunio Kojima | 1998-06-30 |
| 5737297 | Optical head | Tomio Mashiyama, Hiroshi Katayama, Kenji Ikeda | 1998-04-07 |
| 5696742 | Optical disk device for reproducing address information from wobbled groove | Yasuo Nakata, Yoshihiro Sekimoto, Kunio Kojima, Hideaki Sato | 1997-12-09 |
| 5673247 | Optical pickup having two objective lenses | Yoshihiro Sekimoto, Yasuo Nakata, Tomoyuki Miyake | 1997-09-30 |
| 5659528 | Information recording-reproduction method | Kunio Kojima, Yoshihiro Sekimoto, Yasuo Nakata, Tomoyuki Miyake, Toshiharu Inui | 1997-08-19 |
| 5446721 | Objective lens drive device with support system | Yoshihiro Sekimoto, Toshiharu Inui, Yasuo Nakata, Hideaki Sato | 1995-08-29 |
| 5442616 | Light source unit and method of adjusting for maximizing focus and tracking errors thereby | Hideaki Sato | 1995-08-15 |