Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34885 | Liquid crystal polyimide alignment free of scattering domains | Hisao Yokokura, Tadao Nakata, Susumu Era, Yasuo Hanawa, Kishiro Iwasaki +5 more | 1995-03-28 |
| 5220447 | Liquid crystal display device and phase plate therefor | Hisao Yokokura, Teruo Kitamura, Akio Mukoh, Junichi Hirakata, Isoji Sakai +2 more | 1993-06-15 |
| 5067797 | Liquid crystal display cell and process for producing the same | Hisao Yokokura, Tadao Nakada, Teruo Kitamura, Akio Mukoh, Isoji Sakai +4 more | 1991-11-26 |
| 4906073 | Liquid crystal display device using nematic liquid crystal having twisted helical structure and a phase correction plate | Katuyuki Hunahata, Yuji Mori, Jun-ichi Hirakata, Yoshiharu Nagae, Hideaki Kawakami +1 more | 1990-03-06 |
| 4815825 | Liquid crystal display device | Tamihito Nakagomi, Shinji Hasegawa | 1989-03-28 |
| 4781439 | Liquid crystal polyimide alignment free of scattering domains | Hisao Yokokura, Tadao Nakata, Susumu Era, Yasuo Hanawa, Kishiro Iwasaki +5 more | 1988-11-01 |
| 4759612 | Twisted nematic type liquid crystal display device having a color polarizer to provide an achromatic or colorless background | Hideaki Nakatsuka, Mikio Kanazaki, Toshihiko Tojo, Shinji Hasegawa | 1988-07-26 |
| 4759614 | Ferroelectric liquid crystal element with particular alignment film and a method for manufacturing the same | Hisao Yokokura, Katsumi Kondo, Yasuo Hanawa, Susumu Era, Kishiro Iwasaki +4 more | 1988-07-26 |
| 4693562 | Liquid crystal display device | Shinji Hasegawa, Tamihito Nakagomi | 1987-09-15 |
| 4664482 | Liquid crystal display device having a chiral additive and angularly displaced polarizers | Tamihito Nakagomi, Shinji Hasegawa | 1987-05-12 |
| 4653861 | Liquid crystal display device | Tamihito Nakagomi, Shinji Hasegawa | 1987-03-31 |
| 4653865 | Liquid crystal display device | Tamihito Nakagomi, Shinji Hasegawa, Yoshio Hanada | 1987-03-31 |
| 4652088 | Liquid crystal display device | Tamihito Nakagomi, Shinji Hasegawa | 1987-03-24 |
| 4381886 | Liquid crystal display element | Hisao Yokokura, Teruo Kitamura, Ren Ito, Fumio Nakano, Hirosada Morishita +1 more | 1983-05-03 |
| 4269617 | Process for the manufacture of liquid crystal display element | Yoshimichi Shibuya, Hiromitsu Kawamura, Masaharu Koyama | 1981-05-26 |
| 4252414 | Liquid crystal display element | Kiyoshige Kinugawa, Tadashi Ishibashi, Yoshimichi Shibuya, Masatoshi Ito, Ren Ito +1 more | 1981-02-24 |