Granted Patent
Utility
US 6,166,817 · App. 09/374,536
Optical displacement measurement system for detecting the relative movement of a machine part
Inventor:
Akihiro Kuroda
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Aug 16, 1999
Inventor
Akihiro Kuroda
Assignee (at issue)
Sony Precision Technology Inc.
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.