Granted Patent
Utility
US 6,695,477 · App. 08/747,910
Audio signal reproducing apparatus
Inventors:
Masayuki Nishiguchi, Yoshihito Fujiwara
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Nov 12, 1996
Inventors
Masayuki Nishiguchi
Yoshihito Fujiwara
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.