Granted Patent
Utility
US 6,400,537 · App. 09/099,683
Thin film magnetic head
Inventors:
Hiroshi Sakakima, Yousuke Irie, Yasuhiro Kawawake, Mitsuo Satomi
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jun 18, 1998
Inventors
Hiroshi Sakakima
Yousuke Irie
Yasuhiro Kawawake
Mitsuo Satomi
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.