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:
Jan. 14, 2003
Filed:
Mar. 17, 2000
Applicant:
Inventors:
Hirotoshi Ohno, Yokohama, JP;
Fumitaka Tsuji, Zama, JP;
Assignee:
Victor Company of Japan, Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract
The pattern ( ) of a desired character or design can be displayed visibly in an information recording area of an optical recording medium by utilizing the interference phenomenon of the reflected light ( ), which is caused by the different track pitch (P , P ) from the standard track pitch (P ), wherein the different track pitch (P , P ) is applied to some part of tracks ( ) corresponding to the desired pattern ( ) to be displayed visibly.
Ohno, Hirotoshi. (2003). Optical recording medium and recording method therefor (U.S. Patent No. 6507557). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6507557
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile