Granted Patent
Utility
US 6,064,175 · App. 09/139,952
Sensorless three-phase brushless DC motor drive circuit
Inventor:
Young Kyu Lee
Patented Case
View Patent ↗
Granted: May 16, 2000
Filed: Aug 25, 1998
Inventor
Young Kyu Lee
Assignee (at issue)
SAMSUNG DISPLAY CO., 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.