Granted Patent
Utility
US 5,452,366 · App. 08/189,174
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Inventors:
Yoshio Sakamoto, Hiroyuki Kumakura
Patented Case
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Granted: Sep 19, 1995
Filed: Jan 31, 1994
Inventors
Yoshio Sakamoto
Hiroyuki Kumakura
Assignee (at issue)
KENWOOD LIMITED
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.