Granted Patent
Utility
US 4,952,782 · App. 07/267,566
Fixing unit for electrophotographic device
Inventors:
Syuho Yokokawa, Shinichi Fukazawa, Yasuo Kikuchi, Takashi Suzuki, Isao Nakajima
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Nov 7, 1988
Inventors
Syuho Yokokawa
Shinichi Fukazawa
Yasuo Kikuchi
Takashi Suzuki
Isao Nakajima
Assignee (at issue)
Hitachi Koki Co., 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.