Granted Patent
Utility
US 5,182,736 · App. 07/593,904
Deceleration control system for positioning an optical head in an optical disk unit
Inventor:
Shigenori Yanagi
Patented Case
View Patent ↗
Granted: Jan 26, 1993
Filed: Oct 3, 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.