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:
Aug. 01, 2006
Filed:
Jan. 20, 2004
Yoshitaka Sasaki, Milpitas, CA (US);
Kazuo Ishizaki, Milpitas, CA (US);
Takehiro Kamigama, Kwai Chung, HK;
Yoshitaka Sasaki, Milpitas, CA (US);
Kazuo Ishizaki, Milpitas, CA (US);
Takehiro Kamigama, Kwai Chung, HK;
Headway Technologies, Inc., Milpitas, CA (US);
SAE Magnetics (Hong Kong) Limited, Shatin, HK;
Abstract
The invention is directed to improvement of a write element of a thin film magnetic head. In the write element, a lower coil surrounds in a spiral form a back gap portion, arranged within a height of a lower pole. An upper coil is disposed above the lower coil, surrounding in a spiral form the back gap portion and arranged within a height of an upper pole. A gap film is at an intermediate level in the pole length that is defined by the height of the lower pole and the height of the upper pole.