Granted Patent
Utility
US 6,795,277 · App. 10/067,859
Magnetic head and magnetic disk drive
Inventors:
Yuko Tsuchiya, Hiroyuki Hoshiya, Yoshiaki Kawato, Katsuro Watanabe, Hiroshi Ide
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Feb 8, 2002
Inventors
Yuko Tsuchiya
Hiroyuki Hoshiya
Yoshiaki Kawato
Katsuro Watanabe
Hiroshi Ide
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.