Granted Patent
Utility
US 5,506,732 · App. 08/298,933
Optical pickup
Inventor:
Yasuto Mori
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Aug 31, 1994
Inventor
Yasuto Mori
Assignee (at issue)
NEC CORPORATION
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.