Granted Patent
Utility
US 6,577,328 · App. 09/084,183
Program providing medium and shared virtual space providing apparatus and method
Inventors:
Koichi Matsuda, Hiroyuki Hanaya
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: May 26, 1998
Inventors
Koichi Matsuda
Hiroyuki Hanaya
Assignee (at issue)
SONY GROUP 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.