Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7336570 | Apparatus and method for adjusting the tilt angle of an optical pickup device | Tetsuhiro Shiomi, Ryuji Takeda, Mitsuhiko Awata, Takahiro Komazaki, Yasushi Saito | 2008-02-26 |
| 6754154 | Optical disk driving apparatus, optical disk driving method and optical disk apparatus | Ryuji Takeda, Tetsuhiro Shiomi | 2004-06-22 |
| 6341103 | Optical disk apparatus capable of correcting the drive current waveforms of stepping motor | Ryuji Takeda, Tetsuhiro Shiomi | 2002-01-22 |