Granted Patent
Utility
US 5,344,682 · App. 07/896,862
Optical recording medium
Inventors:
Tadahiko Mizukuki, Tadashi Koike, Nobuhisa Kitagawa, Sumio Hirose
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Jun 12, 1992
Inventors
Tadahiko Mizukuki
Tadashi Koike
Nobuhisa Kitagawa
Sumio Hirose
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.