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:
Oct. 04, 2005
Filed:
May. 06, 2002
Fumio Isshiki, Kokubunji, JP;
Atsuko Kuroda, Hachioji, JP;
Takayuki Ichihara, Tokyo, JP;
Masafumi Mochizuki, Kokubunji, JP;
Takuya Matsumoto, Hachioji, JP;
Fumio Isshiki, Kokubunji, JP;
Atsuko Kuroda, Hachioji, JP;
Takayuki Ichihara, Tokyo, JP;
Masafumi Mochizuki, Kokubunji, JP;
Takuya Matsumoto, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A vertical magnetic recording apparatus is provided which can diminish thermal decay of magnetization to ensure a high reliability of the life of recorded information and which can stably effect the write of magnetic information. Light assist is performed by obliquely applying light to a gap between a main pole of a vertical recording head and a medium. The light is radiated from the head side of the apparatus with respect to the medium. Utilizing the present invention, the thermal decay of magnetization at room temperature is diminished, the life of the recorded information is increased, and the storage reliability of the disk is increased.