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:
Dec. 13, 2005
Filed:
Aug. 06, 2002
Yingjian Chen, Fremont, CA (US);
Xiaozhong Dang, Fremont, CA (US);
Mohamad T. Krounbi, San Jose, CA (US);
George V. Kelley, Santa Barbara, CA (US);
Yingjian Chen, Fremont, CA (US);
Xiaozhong Dang, Fremont, CA (US);
Mohamad T. Krounbi, San Jose, CA (US);
George V. Kelley, Santa Barbara, CA (US);
Western Digital (Fremont), Inc., Lake Forest, CA (US);
Abstract
A writer for high frequency, data storage heads. The writer includes a first magnetic pole upon which a write gap pedestal is formed with an upper pedestal layer of high moment material with a planar upper surface. An electrical coil is formed on the first magnetic pole. A write gap layer is deposited on the upper surface of the upper pedestal layer. The writer includes a second magnetic pole disposed above the first magnetic pole with a magnetic, flat, top pole layer. The second magnetic pole includes a bottom shaper fabricated from high moment material positioned between the coil and the top pole layer. An insulation insert separates the bottom shaper from the upper pedestal layer. The second magnetic pole includes a thin dielectric lamination layer that separates the top pole layer from the bottom shaper to disrupt the path of eddy current in the second magnetic pole.