Granted Patent
Utility
US 5,774,438 · App. 08/550,652
Data writing density judging apparatus and method
Inventors:
Chong Yeop Park, Chang Woo Nam, Jong Jun Lee
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Oct 31, 1995
Inventors
Chong Yeop Park
Chang Woo Nam
Jong Jun Lee
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.