Granted Patent
Utility
US 6,747,846 · App. 10/075,269
Thin film magnetic head preventing corrosion and thin film magnetic head slider, and methods of producing the same
Inventors:
Takahiro Kato, Noriyuki Saiki, Yukihiro Isono, Hiroshi Kikuchi
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Feb 15, 2002
Inventors
Takahiro Kato
Noriyuki Saiki
Yukihiro Isono
Hiroshi Kikuchi
Assignee (at issue)
Hitachi Global Storage Technologies Japan, 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.