Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10960479 | Wire guide device of wire electrical discharge machine and wire electrical discharge machine | Rintaro Nagaoka | 2021-03-30 |
| 9800844 | Image projection apparatus | Hironori Nakahara, Tomo Kishigami, Nobuo Takeshita | 2017-10-24 |
| 9488829 | Optical scanning device and projector | Hironori Nakahara, Nobuo Takeshita | 2016-11-08 |
| 9470889 | Laser scanning device | Hironori Nakahara, Tomo Kishigami, Nobuo Takeshita | 2016-10-18 |
| 8891342 | Optical head device and optical disc device | Hironori Nakahara, Nobuo Takeshita | 2014-11-18 |
| 8787137 | Optical pickup device and optical disc device | Hironori Nakahara, Nobuo Takeshita | 2014-07-22 |
| 8437233 | Optical recording/reproduction method and optical recording/reproduction device | Yusuke Kanatake, Tomo Kishigami, Nobuo Takeshita | 2013-05-07 |
| 8385170 | Optical disc discrimination method, optical disc transport device, optical disc device, optical disc inspection device, and optical pickup inspection device | Hironori Nakahara, Yoshihiro Kiyose, Nobuo Takeshita | 2013-02-26 |
| 8179750 | Optical pickup device and optical disc device | Hironori Nakahara, Nobuo Takeshita | 2012-05-15 |
| 8171506 | Optical-system driving device effecting switchover between objective lenses for achieving focal spots | Keiji Nakamura, Mitoru Yabe, Nobuo Takeshita | 2012-05-01 |
| 8040763 | Objective lens driving device and optical pickup device | Nobuo Takeshita | 2011-10-18 |
| 7800985 | Optical pickup device | Nobuo Takeshita | 2010-09-21 |
| 7701812 | Optical element driving apparatus | Nobuo Takeshita, Keiji Nakamura, Mitoru Yabe | 2010-04-20 |
| 7679846 | Lens driving device, optical pick up device and adjusting method | Nobuo Takeshita | 2010-03-16 |
| 7554675 | Light wavefront measuring instrument, light wavefront measuring method, and light source adjusting method | Nobuo Takeshita, Teruo Fujita, Michihiro Tadokoro | 2009-06-30 |
| 5434834 | Optical recording and reproducing apparatus for tracking wobbling guide grooves | Masahisa Shinoda, Kenjiro Kime, Keiji Nakamura, Toru Yoshihara, Takeshi Ito | 1995-07-18 |
| 5383169 | Optical recording and reproducing apparatus for tracking wobbling guide grooves | Masahisa Shinoda, Kenjiro Kime, Keiji Nakamura, Toru Yoshihara, Takeshi Ito | 1995-01-17 |
| 5303216 | Optical recording and reproducing apparatus for tracking wobbling guide grooves | Masahisa Shinoda, Kenjiro Kime, Keiji Nakamura, Toru Yoshihara, Takeshi Ito | 1994-04-12 |
| 4792935 | Objective lens driving device with multipole magnet | Kenjiro Kime, Shigekazu Sakabe, Akira Hashimoto | 1988-12-20 |