Granted Patent
Utility
US 6,650,599 · App. 09/922,836
Method and apparatus for determining power level of laser beam in magneto-optical recording device
Inventors:
Naoyuki Takagi, Atsushi Yamaguchi, Kenichiro Mitani
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: Aug 7, 2001
Inventors
Naoyuki Takagi
Atsushi Yamaguchi
Kenichiro Mitani
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.