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:
Jun. 25, 1991
Filed:
Jun. 04, 1990
Applicant:
Inventors:
Hiroyuki Imataki, Kawasaki, JP;
Mizuho Hiraoka, Isehara, JP;
Yoshihiro Ogawa, Tokyo, JP;
Hitoshi Yoshino, Atsugi, JP;
Sachiko Ichikawa, Sagamihara, JP;
Seijiro Kato, Sagamihara, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03C / ; G11B / ;
U.S. Cl.
CPC ...
430270 ; 430273 ; 430275 ; 430276 ; 430945 ; 3461351 ;
Abstract
An optical recording medium for performing writing and reading on a pit by use of a light of beam comprises an optical recording layer comprising a porous layer.
Imataki, Hiroyuki. (1991). Optical recording medium (U.S. Patent No. 5026623). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5026623
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile