Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5306572 | EL element comprising organic thin film | Yutaka Ohashi, Nobuhiro Fukuda, Sadao Kobayashi | 1994-04-26 |
| 5292821 | Catonic acrylamide polymers and the applications of these polymers | Toshihiko Takaki, Kenji Tsuboi, Hiroshi Itoh | 1994-03-08 |