Granted Patent
Utility
US 6,023,116 · App. 08/944,430
Electromagnetic rotary vibrator for a rotary body
Inventors:
Kiyotaka Kikuchi, Kiyoshi Gunji
Patented Case
View Patent ↗
Granted: Feb 8, 2000
Filed: Oct 6, 1997
Inventors
Kiyotaka Kikuchi
Kiyoshi Gunji
Assignee (at issue)
Japan Nuclear Cycle Development Institute
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.