Granted Patent
Utility
US 6,659,436 · App. 10/241,217
Pneumatically operated active vibration damping device and vibration damping apparatus using the same
Inventors:
Atsushi Muramatsu, Hiroyuki Ichikawa, Syouji Akasa
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Sep 10, 2002
Inventors
Atsushi Muramatsu
Hiroyuki Ichikawa
Syouji Akasa
Assignee (at issue)
TOKAI RUBBER INDUSTRIES, 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.