Granted Patent
Utility
US 6,385,146 · App. 09/223,176
Optical pick-up actuator using a concentrated magnetization
Inventors:
In Ho Choi, Seong Pyo Hong
Patented Case
View Patent ↗
Granted: May 7, 2002
Filed: Dec 30, 1998
Inventors
In Ho Choi
Seong Pyo Hong
Assignee (at issue)
LG ELECTRONICS INC.
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.