Granted Patent
Utility
US 6,643,335 · App. 09/463,222
Signal point arrangement dispersion calculation circuit
Inventors:
Akihiro Horii, Kenichi Shiraishi
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Jan 21, 2000
Inventors
Akihiro Horii
Kenichi Shiraishi
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.