Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622812 | Optical material | Fumio Tatezono, Toshio Harada, Masahiro Irie | 1997-04-22 |
| 5443940 | Optical recording material and optical recording medium employing the same | Fumio Tatezono, Toshio Harada, Masahiro Irie | 1995-08-22 |