Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5276673 | Read-only optical disk containing a reflective layer comprising an Al alloy containing Ta | Yoshiyuki Kisaka, Takashi Hashimoto, Toshifumi Kawano, Mitsugu Wakabayashi | 1994-01-04 |