Granted Patent
Utility
US 5,163,033 · App. 07/507,672
Track access control system in rotating disc devices with eccentricity correction
Inventor:
Shigenori Yanagi
Patented Case
View Patent ↗
Granted: Nov 10, 1992
Filed: Apr 10, 1990
Inventor
Shigenori Yanagi
Assignee (at issue)
Fujitsu Limited
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.