Granted Patent
Utility
US 5,872,955 · App. 08/564,567
Method and apparatus for reading and writing data in a disk drive system
Inventor:
Hideo Asano
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Nov 28, 1995
Inventor
Hideo Asano
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.