Granted Patent
Utility
US 5,896,354 · App. 09/005,363
Optical storage apparatus having switching control circuit for controlling an envelope detecting function in accordance with a medium type or access type
Inventors:
Tomonori Yamashita, Shigenori Yanagi
Patented Case
View Patent ↗
Granted: Apr 20, 1999
Filed: Jan 9, 1998
Inventors
Tomonori Yamashita
Shigenori Yanagi
Assignee (at issue)
Fujitsu Limited
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.