Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855641 | Transparent electrodes of thin-film electroluminescence panel | Masashi Kawaguchi, Yasuo Sonoyama | 1989-08-08 |
| 4814237 | Thin-film electroluminescent element | Kinichi Isaka, Masashi Kawaguchi, Hiroshi Kishishita, Hisashi Uede | 1989-03-21 |