Granted Patent
Utility
US 6,661,606 · App. 10/307,439
Magnetic disk apparatus with magnetic head having upper and lower magnetic cores of an electroplated thin film
Inventors:
Masaaki Sano, Yoshiaki Kita, Shun-ichi Narumi, Takashi Kawabe, Moriaki Fuyama, Hisashi Takano, Hisano Yamamoto, Kenzo Masuda
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Dec 2, 2002
Inventors
Masaaki Sano
Yoshiaki Kita
Shun-ichi Narumi
Takashi Kawabe
Moriaki Fuyama
Hisashi Takano
Hisano Yamamoto
Kenzo Masuda
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.