Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7907501 | Optical disc apparatus and optical pickup unit | — | 2011-03-15 |
| 7365296 | Light reception output controlling apparatus of photo detector in optical pickup unit | Akira Tsukihashi, Shigeru Nakamura, Misao Kuramochi, Mitsuhiro Hiruma, Hiromitsu Kondo | 2008-04-29 |
| 7068571 | Optical recording apparatus and control method thereof | Akira Tsukihashi, Kazunori Ueki, Tadashi Iwama | 2006-06-27 |
| 6980497 | Optical disk recording apparatus and control method thereof | Akira Tsukihashi | 2005-12-27 |