Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5289451 | Optical information recording/reproduction apparatus including means for detecting the type of recording medium | Takaaki Ashinuma, Shigeru Aoi, Yasuo Suzuki, Takehiko Shibata, Masaharu Tsukada +2 more | 1994-02-22 |