Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634226 | Optical apparatus using ferroelectric liquid crystal and switching unit for emitted light | Masato Isogai, Shintaroo Hattori, Kishiro Iwaskai, Akio Mukoh, Takao Umeda | 1987-01-06 |
| 4591886 | Driving method and apparatus for optical printer with liquid-crystal switching element | Takao Umeda, Kazuya Ooishi, Tatsuo Igawa, Yasuro Hori, Masato Isogai | 1986-05-27 |
| 4548474 | Information holding device | Hideaki Kawakami | 1985-10-22 |
| 4508429 | Method for driving liquid crystal element employing ferroelectric liquid crystal | Masato Isogai, Hideaki Kawakami, Fumio Nakano | 1985-04-02 |
| 4400059 | Liquid crystal display device | Tetsuo Ito, Masaaki Kitajima, Hideaki Kawakami, Fumio Nakano, Hidetoshi Abe +3 more | 1983-08-23 |
| 4395709 | Driving device and method for matrix-type display panel using guest-host type phase transition liquid crystal | Masaaki Kitajima, Hideaki Kawakami | 1983-07-26 |
| 4380008 | Method of driving a matrix type phase transition liquid crystal display device to obtain a holding effect and improved response time for the erasing operation | Hideaki Kawakami, Masaaki Kitazima, Naoyuki Izaki | 1983-04-12 |
| 4317115 | Driving device for matrix-type display panel using guest-host type phase transition liquid crystal | Hideaki Kawakami, Masaaki Kitajima, Naoyuki Izaki | 1982-02-23 |
| 4278328 | Guest-host liquid crystal display device | Akio Mukoh, Hidetoshi Abe, Hideaki Kawakami, Hirosada Morishita, Eiji Kaneko | 1981-07-14 |