Granted Patent
Utility
US 5,818,657 · App. 08/690,698
Disk drive with impulse torque generating element
Inventors:
Sri M. Sri-Jayantha, Vijayeshwar D. Khanna, Suresh Kumar, Mutsuro Ohta, Kohji Serizawa
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: Jul 31, 1996
Inventors
Sri M. Sri-Jayantha
Vijayeshwar D. Khanna
Suresh Kumar
Mutsuro Ohta
Kohji Serizawa
Assignee (at issue)
International Business Machines Corporation
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.