Granted Patent
Utility
US 6,281,785 · App. 09/381,375
Vibration generator for notification and portable communication device using the vibration generator
Inventor:
Toshihide Hamaguchi
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Sep 20, 1999
Inventor
Toshihide Hamaguchi
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.