Granted Patent
Utility
US 4,483,593 · App. 06/359,513
Guest-host type liquid crystal composition and liquid crystal display device
Inventors:
Shuji Imazeki, Akio Mukoh, Mikio Sato, Seiichi Imahori, Masaharu Kaneko, Tetsuo Ozawa
Patented Case
View Patent ↗
Granted: Nov 20, 1984
Filed: Mar 18, 1982
Inventors
Shuji Imazeki
Akio Mukoh
Mikio Sato
Seiichi Imahori
Masaharu Kaneko
Tetsuo Ozawa
Assignees (at issue)
HITACHI, LTD.
Mitsubishi Chemical Industries, Ltd.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.