Granted Patent
Utility
US 6,700,737 · App. 09/365,839
Recording and reproducing separation type magnetic head having thin part in upper core or magnetic film and magnetic storage apparatus using the same
Inventors:
Jun Ohno, Takayoshi Ohtsu
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Aug 3, 1999
Inventors
Jun Ohno
Takayoshi Ohtsu
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.