Granted Patent
Utility
US 6,673,476 · App. 09/997,236
Magnetic recording medium and manufacturing process thereof
Inventors:
Yoshiharu Kashiwakura, Yoshihumi Ajishi, Tetsu Ikegami
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Nov 28, 2001
Inventors
Yoshiharu Kashiwakura
Yoshihumi Ajishi
Tetsu Ikegami
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.