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. 02, 2014
Filed:
Feb. 24, 2012
Masato Shiimoto, Odawara, JP;
Kenji Sugiura, Odawara, JP;
Mikito Sugiyama, Odawara, JP;
Isao Nunokawa, Odawara, JP;
Yo Sato, Odawara, JP;
Katsuro Watanabe, Hitachiota, JP;
Kazuhiko Hosomi, Fujisawa, JP;
Nobuo Yoshida, Hiratsuka, JP;
Masato Shiimoto, Odawara, JP;
Kenji Sugiura, Odawara, JP;
Mikito Sugiyama, Odawara, JP;
Isao Nunokawa, Odawara, JP;
Yo Sato, Odawara, JP;
Katsuro Watanabe, Hitachiota, JP;
Kazuhiko Hosomi, Fujisawa, JP;
Nobuo Yoshida, Hiratsuka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The strength of a magnetic field applied from a main pole to an oscillator and the strength of a magnetic field applied from the main pole to a recording medium are improved in a magnetic recording head for microwave assisted recording. In the magnetic recording head according to the present invention, an interval between the main pole and a trailing shield at a place in a position above an air bearing surface is larger than an interval between the main pole and the trailing shield on the air bearing surface.