Granted Patent
Utility
US 6,645,634 · App. 09/596,529
Magnetic recording medium and method for manufacturing same
Inventors:
Shinji Shirai, Youichi Tei
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Jun 19, 2000
Inventors
Shinji Shirai
Youichi Tei
Assignee (at issue)
FUJI ELECTRIC CO., 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.