Granted Patent
Utility
US 5,486,396 · App. 08/417,257
Optical recording medium and production thereof
Inventors:
Tadahiko Mizukuki, Kouichi Yabuuchi, Shinichi Murakami, Tomoyoshi Sasakawa, Kouhei Shizuka, Nobuhisa Kitagawa, Sumio Hirose
Patented Case
View Patent ↗
Granted: Jan 23, 1996
Filed: Apr 5, 1995
Inventors
Tadahiko Mizukuki
Kouichi Yabuuchi
Shinichi Murakami
Tomoyoshi Sasakawa
Kouhei Shizuka
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.