Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8824258 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2014-09-02 |
| 8811137 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2014-08-19 |
| 8804471 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2014-08-12 |
| 8792314 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2014-07-29 |
| 8787137 | Optical pickup device and optical disc device | Toshiya Matozaki, Nobuo Takeshita | 2014-07-22 |
| 8755258 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2014-06-17 |
| 8630159 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2014-01-14 |
| 8593770 | Protection circuit | — | 2013-11-26 |
| 8483022 | Optical head device and optical disc apparatus | — | 2013-07-09 |
| 8472300 | Optical head device and optical disc device | Masahisa Shinoda, Masayuki Omaki, Kenya Nakai, Nobuo Takeshita | 2013-06-25 |
| 8385170 | Optical disc discrimination method, optical disc transport device, optical disc device, optical disc inspection device, and optical pickup inspection device | Yoshihiro Kiyose, Toshiya Matozaki, Nobuo Takeshita | 2013-02-26 |
| 8264930 | Optical disc discriminating method and optical disc discriminating apparatus | — | 2012-09-11 |
| 8254240 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2012-08-28 |
| 8248907 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2012-08-21 |
| 8213290 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2012-07-03 |
| 8179750 | Optical pickup device and optical disc device | Toshiya Matozaki, Nobuo Takeshita | 2012-05-15 |
| 8149042 | Analog switch for signal swinging between positive and negative voltages | Sachito Horiuchi | 2012-04-03 |
| 8134908 | Diffractive optical element and optical pickup | Masahisa Shinoda, Daisuke Matsubara, Kenya Nakai | 2012-03-13 |
| 8093876 | Power control circuit to prevent a malfunction of a protection circuit | Kyoichiro Araki, Yoshinori Imanaka, Isao Yamamoto | 2012-01-10 |
| 8045441 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2011-10-25 |
| 8044639 | Selector circuit | Yoichi Tamegai, Ichiro Yokomizo | 2011-10-25 |
| 8045305 | Protection circuit | — | 2011-10-25 |
| 8036087 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2011-10-11 |
| 8036086 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2011-10-11 |
| 8018812 | Optical disc and optical disc device | Nobuo Takeshita, Masaharu Ogawa | 2011-09-13 |