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.:

US 6807144 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 19, 2004

Filed:

May. 30, 2002
Applicant:
Inventors:

Tae-kyung Kim, Seoul, KR;

Young-man Ahn, Gyeonggi-do, KR;

Chong-sam Chung, Gyeonggi-do, KR;

Jin-kyung Lee, Gyeonggi-do, KR;

Jong-bae Kim, Seoul, KR;

Du-seop Yoon, Gyeonggi-do, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 ;
U.S. Cl.
CPC ...
G11B 7/00 ;
Abstract

An optical recording medium having groove tracks and land tracks, first wobbles formed along both sidewalls of each of the groove tracks, second wobbles formed along both sidewalls of each of the land tracks and which are independent of the formation of the first wobble. A middle portion is formed at a predetermined position on each of the sidewalls between adjacent pairs of the land and groove tracks. This optical recording medium can significantly reduce the non-recordable area as compared to conventional optical recording media, resulting in a great improvement in recording density.


Find Patent Forward Citations

Kim, Tae-kyung. (2004). Optical recording medium recordable on land and groove tracks (U.S. Patent No. 6807144). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6807144

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