Granted Patent
Utility
US 6,404,085 · App. 09/202,663
Vibration generator for reporting and portable communication equipment using the same
Inventors:
Toshihide Hamaguchi, Kouichi Kawakami
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Dec 18, 1998
Inventors
Toshihide Hamaguchi
Kouichi Kawakami
Assignee (at issue)
SANYO ELECTRIC CO., LTD.
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.