Granted Patent
Utility
US 5,586,552 · App. 08/341,989
Physical-information detecting system
Inventor:
Hiroshi Sakai
Patented Case
View Patent ↗
Granted: Dec 24, 1996
Filed: Nov 16, 1994
Inventor
Hiroshi Sakai
Assignee (at issue)
Colin Corporation
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.