Granted Patent
Utility
US 6,456,570 · App. 09/570,437
Magneto-optical recording apparatus and method using phase different optimization technique
Inventors:
Sayoko Tanaka, Yoshihisa Suzuki
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: May 12, 2000
Inventors
Sayoko Tanaka
Yoshihisa Suzuki
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.