Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316900 | Optical recording medium having a constant birefringent property and an alterable photochromic property | Fumio Tatezono, Koutaro Matsuura, Masahiro Irie | 1994-05-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5316900 | Optical recording medium having a constant birefringent property and an alterable photochromic property | Fumio Tatezono, Koutaro Matsuura, Masahiro Irie | 1994-05-31 |