Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9960729 | Solar tracker, sun tracking method, solar power generator, and controller | Masaki Yamamoto | 2018-05-01 |
| 8854939 | Optical information apparatus and gap control method thereof | Shigeru Furumiya | 2014-10-07 |
| 8040774 | Optical disk device and tilt correction method for optical disk device | Masahiro Birukawa | 2011-10-18 |
| 7957232 | Gap controller and optical information processor | Masahiro Birukawa | 2011-06-07 |
| 7948835 | Optical disc device, method for activating optical disc device, and control circuit | Masahiro Birukawa | 2011-05-24 |
| 7944799 | Optical information apparatus with gap control system | Masahiro Birukawa | 2011-05-17 |
| 6829208 | Optical disk reproducing method and reproducing device | Shigeru Furumiya, Hiromichi Ishibashi | 2004-12-07 |
| 6735158 | Multilayer optical disk, and method and device for recording optical information thereon | Shunji Ohara | 2004-05-11 |