Granted Patent
Utility
US 6,577,094 · App. 10/011,382
Optical pickup position control method
Inventors:
Hiroshi Ohtsu, Hironobu Amemiya, Masaki Sugiyama
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Oct 22, 2001
Inventors
Hiroshi Ohtsu
Hironobu Amemiya
Masaki Sugiyama
Assignee (at issue)
SONY COMPUTER ENTERTAINMENT INC.
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.