Granted Patent
Utility
US 6,658,310 · App. 09/451,397
Method of entering audio signal, method of transmitting audio signal, audio signal transmitting apparatus, and audio signal receiving and reproducing apparatus
Inventor:
Ryo Kamiya
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Nov 30, 1999
Inventor
Ryo Kamiya
Assignee (at issue)
YAMAHA 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.