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. 10, 1998
Filed:
Jan. 31, 1996
Applicant:
Inventor:
Takayuki Nomoto, Tsurugashima, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
3692754 ; 3692751 ;
Abstract
An optical disk includes: an information recording surface on which a laser light is irradiated; and information pits arranged on the information recording surface and including a plurality of shapes each corresponding to information to be recorded, each of the shapes having different lengths in at least one of a radial direction of the disk and a circumferential direction of the disk and a depth d substantially satisfying the following relationship with a wavelength .lambda. of the laser light:
Quick Actions:
Nomoto, Takayuki. (1998). Optical disk having information pits of different lengths and shapes (U.S. Patent No. 5717682). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5717682
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