Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33120 | Method for driving liquid crystal element employing ferroelectric liquid crystal | Yoshiharu Nagae, Hideaki Kawakami, Fumio Nakano | 1989-11-28 |
| 4836657 | Optical change-over switch utilizing ferroelectric liquid crystal material | Yasuhiro Gunji, Sadayuki Okada, Katsumi Kondo, Masahiko Ibamoto, Kazuhiro Kuwabara +1 more | 1989-06-06 |