Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888523 | Driving circuit of thin membrane EL display apparatus | Kazuo Shoji, Yosihide Fujioka, Toshihiro Ohba | 1989-12-19 |
| 4866348 | Drive system for a thin-film el panel | Toshihiro Ohba, Yoshiharu Kanatani, Hisashi Uede | 1989-09-12 |
| 4864182 | Driving circuit for thin film EL display device | Yoshihide Fujioka, Kazuo Shoji, Toshihiro Ohba | 1989-09-05 |
| 4823121 | Electroluminescent panel driving system for driving the panel's electrodes only when non-blank data is present to conserve power | Atsushi Sakamoto, Toshihiro Ohba | 1989-04-18 |