Granted Patent
Utility
US 5,453,974 · App. 08/163,730
Optical disk substrate, method for initialization thereof and driving apparatus for initialization of said optical disk
Inventors:
Takeshi Minoda, Shigeharu Fujii
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Dec 9, 1993
Inventors
Takeshi Minoda
Shigeharu Fujii
Assignee (at issue)
Mitsui Petrochemical Industries, 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.