Granted Patent
Utility
US 5,933,397 · App. 08/749,144
Optical storage apparatus having track seek control unit providing improved seek performance
Inventors:
Tomonori Yamashita, Shigenori Yanagi
Patented Case
View Patent ↗
Granted: Aug 3, 1999
Filed: Nov 14, 1996
Inventors
Tomonori Yamashita
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.