Granted Patent
Utility
US 6,567,782 · App. 09/614,863
Portable information terminal, method of processing audio data, recording medium, and program
Inventor:
Takayuki Wakimura
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Jul 12, 2000
Inventor
Takayuki Wakimura
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.