Granted Patent
Utility
US 6,163,512 · App. 08/950,588
Focus servo apparatus for multi-layer disc and method for operating the same
Inventor:
Jaehan Jeun
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Oct 15, 1997
Inventor
Jaehan Jeun
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.