Granted Patent
Utility
US 5,943,514 · App. 08/897,149
Focusing system
Inventors:
Osamu Sato, Masahiro Kawasaki, Yasushi Tabata
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Jul 18, 1997
Inventors
Osamu Sato
Masahiro Kawasaki
Yasushi Tabata
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.