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:
Jan. 04, 2005
Filed:
Oct. 20, 2003
Hisashi Takano, Hachioji, JP;
Naoki Koyama, Kokubunji, JP;
Hideo Tanabe, Higashimurayama, JP;
Eijin Moriwaki, Hachioji, JP;
Isamu Yuito, Ome, JP;
Kazuo Shiiki, Kanagawa-ken, JP;
Tsuyoshi Ohnishi, Katsuta, JP;
Tohru Ishitani, Katsuta, JP;
Toshio Kobayashi, Tokyo, JP;
Hideo Todokoro, Tokyo, JP;
Chiaki Ishikawa, Kodaira, JP;
Hisashi Takano, Hachioji, JP;
Naoki Koyama, Kokubunji, JP;
Hideo Tanabe, Higashimurayama, JP;
Eijin Moriwaki, Hachioji, JP;
Isamu Yuito, Ome, JP;
Kazuo Shiiki, Kanagawa-ken, JP;
Tsuyoshi Ohnishi, Katsuta, JP;
Tohru Ishitani, Katsuta, JP;
Toshio Kobayashi, Tokyo, JP;
Hideo Todokoro, Tokyo, JP;
Chiaki Ishikawa, Kodaira, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film between them through a non-magnetic insulation layer, an induction type write head including poles formed in a moving direction of a medium and a conductor crossing the poles, and disposed in the proximity of the magnetoresistive head, and a substrate supporting these heads, the present invention discloses a composite magnetic head characterized in that part of a floating surface inclusive of the magnetic head constituent members has recesses and the read/write operations to and from the medium are effected by the portion interposed by these recesses.