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. 07, 2006
Filed:
Sep. 03, 2003
Hideyuki Hashi, Osaka, JP;
Taizo Hamada, Osaka, JP;
Toshio Makabe, Kyoto, JP;
Kiyokazu Toma, Osaka, JP;
Tatsuaki Ishida, Shiga, JP;
Yasuaki Ban, Osaka, JP;
Keizo Miyata, Osaka, JP;
Hideyuki Hashi, Osaka, JP;
Taizo Hamada, Osaka, JP;
Toshio Makabe, Kyoto, JP;
Kiyokazu Toma, Osaka, JP;
Tatsuaki Ishida, Shiga, JP;
Yasuaki Ban, Osaka, JP;
Keizo Miyata, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A magnetic transfer method which superposes on a magnetic disk surface a magnetic transfer master disk () on which a magnetic film is formed so as to have an array pattern shape corresponding to a preset information signal, and magnetizes the magnetic film on the master disk () to thereby magnetic-transfer-record the array pattern of the information signal on the master disk () onto the magnetic disk as the magnetized pattern of the information signal, the method characterized by comprising a step of contacting/separating to/from a dummy disk () the magnetic film-formed surface of the master disk () to thereby clean the master disk (), and a step of superposing, after the cleaning, the master disk () on the magnetic disk for magnetic transfer recording; and a magnetic transfer device for the method.