Granted Patent
Utility
US 6,501,707 · App. 09/233,917
Method and apparatus for recording with a magneto-optical recording medium applying one period of an alternating magnetic field to a unit domain length
Inventors:
Atsushi Yamaguchi, Naoyuki Takagi
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Jan 21, 1999
Inventors
Atsushi Yamaguchi
Naoyuki Takagi
Assignee (at issue)
SANYO ELECTRIC 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.