Granted Patent
Utility
US 4,641,964 · App. 06/632,866
Apparatus for measuring optical characteristics of optical systems
Inventors:
Kiyoharu Mitani, Kazuo Morohashi, Kenji Yamada, Tsunemi Gonda, Hideo Mizutani
Patented Case
View Patent ↗
Granted: Feb 10, 1987
Filed: Jul 20, 1984
Inventors
Kiyoharu Mitani
Kazuo Morohashi
Kenji Yamada
Tsunemi Gonda
Hideo Mizutani
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.