Granted Patent
Utility
US 6,310,741 · App. 09/225,972
Magnetic disk apparatus with data track reassigning function
Inventors:
Yasutaka Nishida, Takehiko Hamaguchi, Hisashi Takano, Hiroshi Ide, Hideki Sawaguchi, Futoshi Tomiyama
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Jan 5, 1999
Inventors
Yasutaka Nishida
Takehiko Hamaguchi
Hisashi Takano
Hiroshi Ide
Hideki Sawaguchi
Futoshi Tomiyama
Assignee (at issue)
HITACHI, LTD.
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.