Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11719615 | Particle detection device | Nozomi Enoki | 2023-08-08 |
| 10788362 | Light detection device | Masayuki Omaki | 2020-09-29 |
| 10670522 | Micro object detection apparatus | — | 2020-06-02 |
| 10241043 | Micro object detection apparatus | — | 2019-03-26 |
| 9958376 | Floating particle detection device | Nobuo Takeshita | 2018-05-01 |
| 9936176 | Image protection device and adjustment method | Nobuo Takeshita | 2018-04-03 |
| 9472231 | Optical information recording medium and recording/reproducing device | Masayuki Omaki | 2016-10-18 |
| 9007881 | Optical head device and optical disc device | Masayuki Omaki, Nobuo Takeshita | 2015-04-14 |
| 8971163 | Optical disc device, optical disc and testing method of optical disc | Masayuki Omaki | 2015-03-03 |
| 8787135 | Signal processing device, signal processing method, and optical disc apparatus | Masayuki Omaki, Nobuo Takeshita | 2014-07-22 |
| 8693295 | Optical disc medium and optical disc device | Masahisa Shinoda, Nobuo Takeshita | 2014-04-08 |
| 8537653 | Optical information recording medium and drive device | Masayuki Omaki, Nobuo Takeshita | 2013-09-17 |
| 8472300 | Optical head device and optical disc device | Masahisa Shinoda, Hironori Nakahara, Masayuki Omaki, Nobuo Takeshita | 2013-06-25 |
| 8355309 | Optical pickup device | Noritaka Tanabe, Daisuke Matsubara | 2013-01-15 |
| 8339909 | Optical disc device | Masayuki Ohmaki, Nobuo Takeshita | 2012-12-25 |
| 8270264 | Optical head apparatus, optical disk apparatus and optical disk | — | 2012-09-18 |
| 8134908 | Diffractive optical element and optical pickup | Masahisa Shinoda, Daisuke Matsubara, Hironori Nakahara | 2012-03-13 |
| 8130621 | Optical head device and optical disk playback system | — | 2012-03-06 |
| 8014257 | Extraction optical system and optical head device including the same | — | 2011-09-06 |
| 7839733 | Optical device and optical disc apparatus utilizing the optical device | — | 2010-11-23 |
| 7782730 | Optical-pickup-adjustment optical disk, method of adjusting optical pickup device, and method of producing optical pickup device | Masahisa Shinoda, Daisuke Matsubara, Hironori Nakahara | 2010-08-24 |
| 7697401 | Optical head device and optical disk apparatus | — | 2010-04-13 |
| 7266072 | Semiconductor laser unit and optical head device | Masahisa Shinoda | 2007-09-04 |
| 6912192 | Semiconductor laser unit and optical head device | Masahisa Shinoda | 2005-06-28 |