Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6839315 | Optical head and optical pickup having improved thermal coefficient matching for thermal expansion adjustment | Koichiro Kishima, Akira Kouchiyama, Kenji Yamamoto, Gakuji Hashimoto | 2005-01-04 |