Granted Patent
Utility
US 5,834,867 · App. 08/623,954
Electromagnetic rotary vibrator and damper for a rotary body
Inventors:
Kiyotaka Kikuchi, Kiyoshi Gunji
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Mar 29, 1996
Inventors
Kiyotaka Kikuchi
Kiyoshi Gunji
Assignee (at issue)
Doryokuro Kakunenryo Kaihatsu Jigyodan
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.