Granted Patent
Utility
US 5,834,868 · App. 08/751,487
Spindle motor
Inventors:
Shouichi Yoshikawa, Yasushi Abe
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Nov 18, 1996
Inventors
Shouichi Yoshikawa
Yasushi Abe
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, LTD.
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.