Granted Patent
Utility
US 6,609,147 · App. 09/227,689
Information processing apparatus, information processing method, and information providing medium
Inventors:
Koichi Matsuda, Taketo Naito, Hiroshi Ueno
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: Jan 8, 1999
Inventors
Koichi Matsuda
Taketo Naito
Hiroshi Ueno
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.