Granted Patent
Utility
US 6,603,643 · App. 09/970,642
Magnetoresistive head containing oxide layer
Inventors:
Hiroyuki Hoshiya, Kenichi Meguro, Takao Imagawa
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Oct 5, 2001
Inventors
Hiroyuki Hoshiya
Kenichi Meguro
Takao Imagawa
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.