Granted Patent
Utility
US 4,772,909 · App. 07/029,225
Lens drive control apparatus for automatic focusing
Inventor:
Akira Ogasawara
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Mar 23, 1987
Inventor
Akira Ogasawara
Assignee (at issue)
Nippon Kogaku K.K.
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.