Granted Patent
Utility
US 6,598,480 · App. 09/994,863
Vibration testing system
Inventors:
Toshihiko Horiuchi, Masaki Kurihara, Tomoyuki Hamada, Takao Konno
Patented Case
View Patent ↗
Granted: Jul 29, 2003
Filed: Nov 28, 2001
Inventors
Toshihiko Horiuchi
Masaki Kurihara
Tomoyuki Hamada
Takao Konno
Assignee (at issue)
HITACHI, 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.