Granted Patent
Utility
US 6,023,533 · App. 09/042,626
System and method for correcting gray scale in an imaging apparatus
Inventors:
Toshiyuki Sano, Keiji Toyoda
Patented Case
View Patent ↗
Granted: Feb 8, 2000
Filed: Mar 17, 1998
Inventors
Toshiyuki Sano
Keiji Toyoda
Assignee (at issue)
SUMITOMO ELECTRIC 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.