Granted Patent
Utility
US 4,884,101 · App. 07/151,188
Apparatus capable of adjusting the light amount
Inventor:
Akikazu Tanimoto
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Feb 1, 1988
Inventor
Akikazu Tanimoto
Assignee (at issue)
NIKON CORPORATION
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.