Granted Patent
Utility
US 6,404,601 · App. 09/490,518
Merged write head with magnetically isolated poletip
Inventors:
Robert Earl Rottmayer, Jian Zhu, Kyusik Sin, Ronald A. Barr
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Jan 25, 2000
Inventors
Robert Earl Rottmayer
Jian Zhu
Kyusik Sin
Ronald A. Barr
Assignee (at issue)
Read Rite Corporation
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.