Granted Patent
Utility
US 4,500,778 · App. 06/617,133
Image plane deviation amount detecting device
Inventors:
Yosuke Kusaka, Toru Fukuhara
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: Jun 4, 1984
Inventors
Yosuke Kusaka
Toru Fukuhara
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.