Granted Patent
Utility
US 6,743,529 · App. 10/015,683
Process for producing glass substrate for magnetic recording medium and glass substrate for magnetic recording medium obtained by the same
Inventors:
Yasuhiro Saito, Hiroshi Ikeda, Junji Kurachi, Kazuishi Mitani
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Dec 17, 2001
Inventors
Yasuhiro Saito
Hiroshi Ikeda
Junji Kurachi
Kazuishi Mitani
Assignee (at issue)
NIPPON SHEET GLASS COMPANY, LIMITED
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.