Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880661 | Method of manufacturing a thin-film electroluminescent display element | Yoshihiro Endo, Masashi Kawaguchi, Hiroshi Kishishita | 1989-11-14 |
| 4866348 | Drive system for a thin-film el panel | Shigeyuki Harada, Toshihiro Ohba, Yoshiharu Kanatani | 1989-09-12 |
| 4818913 | Aging method for thin-film electroluminescent display panel | Kinishi Isaka, Masashi Kawaguchi | 1989-04-04 |
| 4814237 | Thin-film electroluminescent element | Noriaki Nakamura, Kinichi Isaka, Masashi Kawaguchi, Hiroshi Kishishita | 1989-03-21 |
| 4801920 | EL panel drive system | Toshihiro Ohba, Hiroshi Kinoshita, Yoshiharu Kanatani | 1989-01-31 |