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:
Sep. 16, 2003
Filed:
Dec. 29, 2000
Kenji Asano, Kakamigahara, JP;
Noboru Mamiya, Motosu-gun, JP;
Yoshiharu Uchihara, Ogaki, JP;
Satoshi Sumi, Gifu, JP;
Kenji Nakao, Gifu, JP;
Hiroshi Watanabe, Anpachi-gun, JP;
Toshiaki Hioki, Ogaki, JP;
Yoshihiro Hori, Gifu, JP;
Hisashi Matsuyama, Ogaki, JP;
Kenji Torazawa, Ogaki, JP;
Kenji Tanase, Motosu-gun, JP;
Sayoko Tanaka, Anpachi-gun, JP;
Yoshihisa Suzuki, Bisai, JP;
Shigeki Hori, Ogaki, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
A magneto-optical record medium and a reproducing apparatus for the same allow data reproduction having good characteristics by a simple structure. The magneto-optical record medium includes a plurality of first grooves ( ) each having sidewalls, at least one of which is wobbled in accordance with address information; an address mark ( ) formed by changing a width of a land located between second grooves connected to the first grooves; and third grooves wobbled cyclically, formed in a data portion magnetically storing data and connected to the second grooves. The reproducing apparatus reproduces the data from the magneto-optical record medium.