Granted Patent
Utility
US 4,734,655 · App. 06/903,296
Digital rotation detecting apparatus
Inventor:
Jyoji Kawai
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Sep 3, 1986
Inventor
Jyoji Kawai
Assignee (at issue)
MITSUBISHI ELECTRIC 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.