Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360652 | Optical recording disc | Takahiro Kobayashi, Seiro Fujii | 1994-11-01 |
| 5292550 | Manufacturing method of substrate means for optical recording disk and apparatus therefor | Seiro Fujii, Takahiro Kobayashi | 1994-03-08 |