Granted Patent
Utility
US 6,089,115 · App. 09/136,194
Angular transmission using magnetorheological fluid (MR fluid)
Inventor:
Jun Yoshioka
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Aug 19, 1998
Inventor
Jun Yoshioka
Assignee (at issue)
DANA LIMITED
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.