Granted Patent
Utility
US 4,737,310 · App. 06/864,392
Liquid crystal composition containing azo dyes
Inventors:
Shuji Imazeki, Akio Mukoh, Mikio Sato, Masaharu Kaneko, Tomio Yoneyama, Junko Iwanami
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: May 19, 1986
Inventors
Shuji Imazeki
Akio Mukoh
Mikio Sato
Masaharu Kaneko
Tomio Yoneyama
Junko Iwanami
Assignees (at issue)
Mitsubishi Chemical Industries, Ltd.
HITACHI, 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.