Granted Patent
Utility
US 6,323,758 · App. 09/444,572
Vibration generating unit
Inventor:
Yuichi Morita
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Nov 19, 1999
Inventor
Yuichi Morita
Assignee (at issue)
NEC 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.