Granted Patent
Utility
US 6,733,180 · App. 10/203,035
Method of manufacturing dynamic pressure bearing device, and dynamic pressure bearing device
Inventor:
Junichi Nakamura
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Aug 5, 2002
Inventor
Junichi Nakamura
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.