Granted Patent
Utility
US 6,690,534 · App. 09/827,339
Method and apparatus for handling multiple resonance frequencies in disc drives using active damping
Inventors:
MingZhong Ding, YangQuan Chen, LeeLing Tan, Wing Kong Chiang, KianKeong Ooi, BengWee Quak
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Apr 5, 2001
Inventors
MingZhong Ding
YangQuan Chen
LeeLing Tan
Wing Kong Chiang
KianKeong Ooi
BengWee Quak
Assignee (at issue)
Seagate Technology LLC
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.