The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 1996
Filed:
Jul. 18, 1991
Applicant:
Inventors:
Kenji Ohta, Kitakatsuragi, JP;
Toshikazu Nagaura, Nara, JP;
Masayasu Futagawa, Nara, JP;
Shinji Yamagami, Tenri, JP;
Yoshiteru Murakami, Nishinomiya, JP;
Hiroyuki Ikenaga, Nara, JP;
Michinobu Mieda, Shiki, JP;
Tetsuya Inui, Nara, JP;
Akira Takahashi, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
3692755 ;
Abstract
An optical disk including a transparent plastic substrate, a recording film formed on an one side surface of said substrate, a first protective film covering said recording film, and a moisture-impermeable film formed on the other side surface of said substrate via or not via an intermediate film.