Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5320930 | Optical recording medium and process for recording thereon | Kazuharu Katagiri, Yoshio Takasu | 1994-06-14 |
| 5278026 | Optical recording medium and process for recording thereupon | Kazuharu Katagiri, Yoshio Takasu | 1994-01-11 |