Granted Patent
Utility
US 6,175,459 · App. 09/123,749
Magnetic disk drive with a disk medium defect detector and read channel IC used in the drive
Inventor:
Isamu Tomita
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Jul 27, 1998
Inventor
Isamu Tomita
Assignee (at issue)
Fujitsu 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.