Granted Patent
Utility
US 6,400,656 · App. 09/160,045
Magneto-optical recording medium comprising recording layer and reproducing layer
Inventors:
Kenji Tanase, Yoshihisa Suzuki
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Sep 25, 1998
Inventors
Kenji Tanase
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.