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Class Information
Number: 360/119
Name: Dynamic magnetic information storage or retrieval > Head > Gap structure details
Description: Subject matter wherein the structure of the head gap is described in detail.

Sub-classes under this class:

Class Number Class Name Patents
360/121 Plural gaps 682
360/120 Spacer material 193

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
7289295 Return pole field reduction for perpendicular write head Oct. 30, 2007
7248435 Thin-film magnetic head with gap and pole portion layers having cross sections of the same shapes and predetermined parameter ranges Jul. 24, 2007
7245454 Magnetic head for vertical magnetic recording including main pole layer having varying width and thickness, head gimbal assembly, and hard disk drive Jul. 17, 2007
7230793 Magnetic recording head with anisotropic medium placed between poles Jun. 12, 2007
7221539 Stitched shielded pole structure for a perpendicular magnetic recording write head May. 22, 2007
7215511 Magnetic write head with gap termination less than half distance between pedestal and back gap May. 8, 2007
7207098 Hard mask method of forming a reader of a magnetic head Apr. 24, 2007
7152305 Method for fabricating a magnetoresistive (MR) read head Dec. 26, 2006
7106554 Perpendicular magnetic writer with magnetic potential control shield Sep. 12, 2006
7101633 Electroplated magnetic thin film, method of manufacturing the same, electroplating bath and thin film magnetic head Sep. 5, 2006
7102852 Yoke structure with a step Sep. 5, 2006
7086138 Method of forming a feature having a high aspect ratio Aug. 8, 2006
7050251 Encoding techniques for patterned magnetic media May. 23, 2006
6999276 Magnetic head with magnetic pole minimum Fe content difference and Fe content increasing toward interface with gap layer Feb. 14, 2006
6999274 Servo head for magnetic tape Feb. 14, 2006
6996033 Optical path for a thermal-assisted magnetic recording head Feb. 7, 2006
6987643 Pole structure to relieve adjacent track writing Jan. 17, 2006
6975485 Thin film magnetic recording inductive write head with laminated write gap Dec. 13, 2005
6972928 Isotropic deposition for trench narrowing of features to be created by reactive ion etch processing Dec. 6, 2005
6954340 Perpendicular magnetic recording head with nonmagnetic write gap greater than twice side shield gap distance Oct. 11, 2005
6950278 Magnetic head Sep. 27, 2005
6950277 Concave trailing edge write pole for perpendicular recording Sep. 27, 2005
6894868 Magnetic head May. 17, 2005
6882502 Thin-film magnetic head with narrowed track width and method for making same Apr. 19, 2005
6865056 Longitudinal magnetic recording heads with variable-length gaps Mar. 8, 2005
6854175 Method of manufacturing a thin film magnetic head Feb. 15, 2005
6850390 Thin-film magnetic head and method of manufacturing same Feb. 1, 2005
6833975 Perpendicular magnetic recording medium and apparatus including a soft magnetic layer, an at least 20 nm thick non-magnetic layer, and a 50-90 nm gap length Dec. 21, 2004
6833976 Thin film magnetic recording inductive write head with laminated write gap Dec. 21, 2004
6826011 Writer design eliminating transition curvature for very narrow writer widths Nov. 30, 2004
6804879 Method of fabricating a magnetic transducer with a write head having a multi-layer coil Oct. 19, 2004
6801379 Multi-magnetic recording head, and magnetic recording method and magnetic recording apparatus using the same Oct. 5, 2004
6801392 Soft magnetic film having high saturation magnetic flux density, thin film magnetic head using the same, and methods of producing the soft magnetic film and the thin film magnetic head Oct. 5, 2004
6785092 White head for high anisotropy media Aug. 31, 2004
6781790 Thin film magnetic head having a write gap layer Aug. 24, 2004
6781781 Magnetic read head having decode circuitry Aug. 24, 2004
6779249 Method and device for determining in-process characteristics of fabricated magnetic heads Aug. 24, 2004
6778355 Glass composition, sealing glass for magnetic head and magnetic head using the same Aug. 17, 2004
6747851 Thin-film magnetic head and method of manufacturing same Jun. 8, 2004
6738223 Thin film magnetic head having side faces of the Gd defining layer and the lower magnetic pole layer aligned in the track width dimension May. 18, 2004
6729012 Method of manufacturing a thin-film magnetic head May. 4, 2004
6724569 Thin film writer with multiplayer write gap Apr. 20, 2004
6721129 Low frequency attenuator in a magnetic write head Apr. 13, 2004
6709767 In-situ oxidized films for use as cap and gap layers in a spin-valve sensor and methods of manufacture Mar. 23, 2004
6707642 Longitudinal magnetic recording head with reduced side fringing Mar. 16, 2004
6703106 Magnetic recording and reproducing method and magnetic recording medium for use in the method Mar. 9, 2004
6697231 Thin film magnetic head and rotary head assembly using thin film magnetic heads Feb. 24, 2004
6667850 Bilayer liftoff process for high moment laminate Dec. 23, 2003
6649286 FeCoNiN-based soft magnetic thin film composition Nov. 18, 2003
6604274 Method of producing thin film magnetic head Aug. 12, 2003

1 2 3 4 5 6 7 8

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