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Class Information
Number: 428/813
Name: Stock material or miscellaneous articles > Magnetic recording component or stock > Magnetic head > Substrate composition
Description: Subject matter in which the laminate has the chemical composition of the substrate identified.










Patents under this class:

Patent Number Title Of Patent Date Issued
8526137 Head comprising a crystalline alumina layer Sep. 3, 2013
8318330 Magnetic read/write head substrate Nov. 27, 2012
8173563 Sintered body and production method thereof May. 8, 2012
8173281 Ceramic sinter, magnetic head substrate using the same, magnetic head and recording medium drive unit May. 8, 2012
8163830 Nanoclays in polymer compositions, articles containing same, processes of making same, and systems containing same Apr. 24, 2012
8110516 Sintered body and production method thereof Feb. 7, 2012
7910181 Method for preparation of anisotropic materials Mar. 22, 2011
7606010 Mg-Zn oxide tunnel barriers and method of formation Oct. 20, 2009
7446978 Magnetic slider and method of manufacturing magnetic head slider Nov. 4, 2008
7414002 Aluminum oxide-titanium nitride sintered body, manufacturing method thereof, and magnetic head substrate, ultrasonic motor and dynamic pressure bearing using the same Aug. 19, 2008
7381670 Material for magnetic head slider, magnetic head slider, and method of producing material for magnetic head slider Jun. 3, 2008
7300711 Magnetic tunnel junctions with high tunneling magnetoresistance using non-bcc magnetic materials Nov. 27, 2007
7294418 Magnetic film for magnetic head Nov. 13, 2007
7220498 Tunnel magnetoresistance element May. 22, 2007
7094480 Magnetic field sensor using magnetoresistance and method for making same Aug. 22, 2006
7045224 Magnetic detecting element having antiferromagnetic film having predetermined space in track width direction and method for manufacturing the same May. 16, 2006
7029771 Magnetic sensor having free layer additionally provided with magnetic anisotropy by shape anisotropy Apr. 18, 2006
6967055 Thin-film magnetic head and method of forming the same Nov. 22, 2005
6835464 Thin film device with perpendicular exchange bias Dec. 28, 2004
6710986 Tunneling magnetoresistive head and a process of tunneling magnetoresistive head Mar. 23, 2004
6638596 Thin film magnetic head using soft magnetic film having soft magnetic characteristics of high resistivity, low coercive force, and high saturation magnetic flux density Oct. 28, 2003
6391431 Magnetoresistance effect film and magnetoresistance effect type head May. 21, 2002
6387550 Giant magnetoresistive material film, method of producing the same and magnetic head using the same May. 14, 2002
6329087 Wafer for magnetic head and magnetic head Dec. 11, 2001
6136459 Nonmagnetic substrate and magnetic head using the same Oct. 24, 2000
5811155 Method of fabricating a layered magnetic head Sep. 22, 1998
5629100 Non-magnetic single crystal Mn--Zn ferrite for floating type magnetic heads May. 13, 1997
5595830 Magnetoresistive structure with alloy layer having two substantially immiscible components Jan. 21, 1997
5290589 Process for coating a substrate with iron oxide and uses for coated substrates Mar. 1, 1994
5290738 Material for nonmagnetic oxide substrate and magnetic head Mar. 1, 1994
5246893 Ceramic sintered body and process for preparation thereof Sep. 21, 1993
5242865 Non-magnetic substrate of magnetic head Sep. 7, 1993
5231555 Magnetic head comprising a laminated magnetic layer structure between non magnetic rock salt structure oxide substrates Jul. 27, 1993
5217818 Substrate material for magnetic head and magnetic head using same Jun. 8, 1993
5057374 MnO/NiO-based nonmagnetic substrate material Oct. 15, 1991
5047296 Composite magnetic material and its production process Sep. 10, 1991
5034273 Nitrogen-containing magnetic alloy film Jul. 23, 1991
5034285 Magnetic head Jul. 23, 1991
5026614 Magnetic recording medium with a zinc cobalt oxide non-magnetic substrate containing nickel or manganese Jun. 25, 1991
4875987 Grooved magnetic substrates and method for producing the same Oct. 24, 1989
4863557 Pattern forming process and thin-film magnetic head formed by said process Sep. 5, 1989
4777074 Grooved magnetic substrates and method for producing the same Oct. 11, 1988
4681813 Ceramic substrate for a thin layer magnetic head Jul. 21, 1987
4650726 Ceramic substrate of Na.sub.2 O and Ta.sub.2 O.sub.5 for thin film magnetic head Mar. 17, 1987
4639400 Ceramic substrate of Na.sub.2 O and Nb.sub.2 O.sub.5 for magnetic metal thin film Jan. 27, 1987
4636420 Grooved magnetic substrates and method for producing the same Jan. 13, 1987
4608293 Composite substrate for a thin-film magnetic head Aug. 26, 1986
4540638 Non-magnetic substrate material Sep. 10, 1985











 
 
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