Granted Patent
Utility
US 5,879,084 · App. 08/854,920
Hydrodynamic bearing
Inventor:
Yoshikazu Ichiyama
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: May 13, 1997
Inventor
Yoshikazu Ichiyama
Assignee (at issue)
NIDEC CORPORATION
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.