Granted Patent
Utility
US 4,634,851 · App. 06/831,059
Control device for automatic focusing
Inventors:
Akira Ogasawara, Sakuji Watanabe, Nobuhiko Terui, Ken Utagawa, Kunihisa Hoshino
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Feb 19, 1986
Inventors
Akira Ogasawara
Sakuji Watanabe
Nobuhiko Terui
Ken Utagawa
Kunihisa Hoshino
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.