Granted Patent
Utility
US 6,807,670 · App. 09/767,159
Objective lens driving mechanism in optical storage device
Inventor:
Shinichi Ohtsuka
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Jan 22, 2001
Inventor
Shinichi Ohtsuka
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.