Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648135 | Information recording medium having recording layer with organic polymer and dye contained therein | Itsuo Watanabe, Atsushi Kuwano, Nobuaki Takane, Mitsuo Yamada, Seiji Tai | 1997-07-15 |
| 5464673 | Information recording medium having recording layer with organic polymer and dye contained therein | Itsuo Watanabe, Atsushi Kuwano, Nobuaki Takane, Mitsuo Yamada, Seiji Tai | 1995-11-07 |