Granted Patent
Utility
US 5,198,660 · App. 07/750,638
Optical sensing circuit including an integral capacity
Inventors:
Shotaro Yokoyama, Takashi Nishibe
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Aug 27, 1991
Inventors
Shotaro Yokoyama
Takashi Nishibe
Assignee (at issue)
FUJI ELECTRIC 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.