Granted Patent
Utility
US 6,750,861 · App. 10/366,984
Information processing device and method thereof, and transmission medium
Inventor:
Masaaki Oka
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Feb 14, 2003
Inventor
Masaaki Oka
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.