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1.发明申请Laminated magnetic media using Ta containing magnetic alloy as the upper magnetic layer 审中-公开使用含磁性合金的层叠磁性介质作为上层磁性层公开(公告)号：US20070037015A1
公开(公告)日：2007-02-15
申请号：US11202128
申请日：2005-08-10
Applicant: Mohammad Mirzamaani , Kai Tang
Inventor： Mohammad Mirzamaani , Kai Tang
Abstract: A laminated magnetic recording medium comprising two magnetic layers that are substantially decoupled. The upper magnetic layer is preferably a cobalt alloy that includes tantalum. The tantalum in the upper magnetic layer provides the advantage of improving media SNR with good media stability.
Abstract translation: 一种层叠磁记录介质，包括基本上分离的两个磁性层。 上磁性层优选为含有钽的钴合金。 上层磁性层中的钽提供了改进介质SNR的优点，具有良好的介质稳定性。
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2.发明申请Laminated magnetic recording media with two sublayers in the lower magnetic layer 审中-公开具有两个子层的层压磁记录介质在下磁层中公开(公告)号：US20070019328A1
公开(公告)日：2007-01-25
申请号：US11190158
申请日：2005-07-25
Applicant: Mohammad Mirzamaani , Kai Tang
Inventor： Mohammad Mirzamaani , Kai Tang
CPC classification number: G11B5/66 , G11B5/656 , G11B5/7379 , G11B5/851
Abstract: An embodiment of the invention is a laminated magnetic recording medium comprising two magnetic layers that are substantially decoupled. The lower magnetic layer comprises two sublayers. The upper magnetic sublayer is preferably a cobalt alloy having lower chromium and higher boron content than the lower magnetic sublayer. The upper sublayer composition is selected to have higher coercivity (Hc), narrower PW50 and higher resolution. The lower sublayer composition is selected for higher SNR, thermal stability and better overwrite. The laminated structure can also be used in an embodiment which has a slave magnetic layer separated from the lower magnetic layer by an AFC spacer.
Abstract translation: 本发明的一个实施例是一种层叠的磁记录介质，包括基本上分离的两个磁性层。 下磁层包括两个子层。 上磁性子层优选为具有比下部磁性子层低的铬和高硼含量的钴合金。 上层组合物被选择为具有较高的矫顽力（HCC），较窄的PW 50和更高的分辨率。 选择较低的子层组合物以获得更高的SNR，热稳定性和更好的覆盖。 层叠结构也可以用于具有通过AFC间隔物与下磁性层分离的从属磁性层的实施例。
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公开(公告)号：US20080152955A1
公开(公告)日：2008-06-26
申请号：US11644342
申请日：2006-12-22
Applicant: Jack Chang , Mohammad Mirzamaani , Kai Tang
Inventor： Jack Chang , Mohammad Mirzamaani , Kai Tang
CPC classification number: G11B5/7325 , G11B5/656 , G11B5/66
Abstract: Improvements to magnetic recording device including magnetic recording media are described. The improvements include the addition of copper to the recording layer as well as improved underlayers. In addition, improved manufacturing processes and magnetic/recording properties for media through heating and oxidation are described.
Abstract translation: 描述了包括磁记录介质在内的磁记录装置的改进。 这些改进包括将铜添加到记录层以及改进的底层。 此外，描述了通过加热和氧化改进介质的制造工艺和磁/记录性能。
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公开(公告)号：US07879467B2
公开(公告)日：2011-02-01
申请号：US12653808
申请日：2009-12-14
Applicant: Jack Chang , Mohammad Mirzamaani , Kai Tang
Inventor： Jack Chang , Mohammad Mirzamaani , Kai Tang
IPC: G11B5/66
CPC classification number: G11B5/7325 , G11B5/656 , G11B5/66
Abstract: Improvements to magnetic recording device including magnetic recording media are described. The improvements include the addition of copper to the recording layer as well as improved underlayers. In addition, improved manufacturing processes and magnetic/recording properties for media through heating and oxidation are described.
Abstract translation: 描述了包括磁记录介质在内的磁记录装置的改进。 这些改进包括将铜添加到记录层以及改进的底层。 此外，描述了通过加热和氧化改进介质的制造工艺和磁/记录性能。
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公开(公告)号：US20070292721A1
公开(公告)日：2007-12-20
申请号：US11789891
申请日：2007-04-25
Applicant: Andreas Berger , Xiaoping Bian , Qing Dai , Hoa Do , Eric Fullerton , Bernd Heinz , Yoshihiro Ikeda , David Margulies , Mary Minardi , Mohammad Mirzamaani , Hal Rosen , Natacha Supper , Kentaro Takano , Min Xiao
Inventor： Andreas Berger , Xiaoping Bian , Qing Dai , Hoa Do , Eric Fullerton , Bernd Heinz , Yoshihiro Ikeda , David Margulies , Mary Minardi , Mohammad Mirzamaani , Hal Rosen , Natacha Supper , Kentaro Takano , Min Xiao
CPC classification number: G11B5/66 , G11B5/65 , G11B5/7325 , G11B5/851
Abstract: A perpendicular magnetic recording medium including improvements to the recording layer (RL), exchange break layer (EBL), soft underlayer (SUL), overcoat (OC), adhesion layer (AL) and the combination of the layers. Advances in the RL include a cap layer. Improvements in the EBL include a multiple layer EBL.
Abstract translation: 包括对记录层（RL），交换破坏层（EBL），软底层（SUL），外涂层（OC），粘合层（AL）以及这些层的组合的改进的垂直磁记录介质。 RL的进步包括盖层。 EBL的改进包括多层EBL。
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Patent Agency Ranking
公开(公告)号：US20060183003A1
公开(公告)日：2006-08-17
申请号：US11058538
申请日：2005-02-15
Applicant: Mary Minardi , Mohammad Mirzamaani , Kai Tang
Inventor： Mary Minardi , Mohammad Mirzamaani , Kai Tang
IPC: G11B5/66
CPC classification number: G11B5/66
Abstract: A laminated film structure is disclosed comprising multiple ferromagnetic layers achieving improved data recording performance. A non-magnetic spacer layer is disposed between an upper ferromagnetic layer and an antiferromagnetic coupled (AFC) structure. The AFC structure is comprised of a ferromagnetic layer and an antiferromagnetic slave layer. The ferromagnetic layer in the AFC structure, referred to as lower ferromagnetic layer, may contain tantalum to promote chromium segregation at the grain boundaries to achieve magnetic decoupling of the grains with relatively thin boundaries, improving medium signal-to-noise ratio while maintaining good thermal stability of the medium. In some embodiments, the interlayer is a five-element alloy such as a CoCrPtBTa alloy.
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公开(公告)号：US20100104893A1
公开(公告)日：2010-04-29
申请号：US12653808
申请日：2009-12-14
Applicant: Jack Chang , Mohammad Mirzamaani , Kai Tang
Inventor： Jack Chang , Mohammad Mirzamaani , Kai Tang
IPC: G11B5/66
CPC classification number: G11B5/7325 , G11B5/656 , G11B5/66
Abstract: Improvements to magnetic recording device including magnetic recording media are described. The improvements include the addition of copper to the recording layer as well as improved underlayers. In addition, improved manufacturing processes and magnetic/recording properties for media through heating and oxidation are described.
Abstract translation: 描述了包括磁记录介质在内的磁记录装置的改进。 这些改进包括将铜添加到记录层以及改进的底层。 此外，描述了通过加热和氧化改进介质的制造工艺和磁/记录性能。
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公开(公告)号：US07670694B2
公开(公告)日：2010-03-02
申请号：US11644342
申请日：2006-12-22
Applicant: Jack Chang , Mohammad Mirzamaani , Kai Tang
Inventor： Jack Chang , Mohammad Mirzamaani , Kai Tang
IPC: G11B5/66
CPC classification number: G11B5/7325 , G11B5/656 , G11B5/66
Abstract: Improvements to magnetic recording device including magnetic recording media are described. The improvements include the addition of copper to the recording layer as well as improved underlayers. In addition, improved manufacturing processes and magnetic/recording properties for media through heating and oxidation are described.
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9.发明授权公开(公告)号：US07514161B2
公开(公告)日：2009-04-07
申请号：US11058538
申请日：2005-02-15
Applicant: Mary Frances Minardi , Mohammad Mirzamaani , Kai Tang
Inventor： Mary Frances Minardi , Mohammad Mirzamaani , Kai Tang
IPC: G11B5/66
CPC classification number: G11B5/66
Abstract: A laminated film structure is disclosed comprising multiple ferromagnetic layers achieving improved data recording performance. A non-magnetic spacer layer is disposed between an upper ferromagnetic layer and an antiferromagnetic coupled (AFC) structure. The AFC structure is comprised of a ferromagnetic layer and an antiferromagnetic slave layer. The ferromagnetic layer in the AFC structure, referred to as lower ferromagnetic layer, may contain tantalum to promote chromium segregation at the grain boundaries to achieve magnetic decoupling of the grains with relatively thin boundaries, improving medium signal-to-noise ratio while maintaining good thermal stability of the medium. In some embodiments, the interlayer is a five-element alloy such as a CoCrPtBTa alloy.
Abstract translation: 公开了一种叠层膜结构，其包括实现改善的数据记录性能的多个铁磁层。 非磁性间隔层设置在上铁磁层和反铁磁耦合（AFC）结构之间。 AFC结构由铁磁层和反铁磁从属层组成。 称为低铁磁层的AFC结构中的铁磁层可能含有钽以促进晶界的铬偏析，以实现具有相对薄边界的晶粒的磁解耦，提高中等信噪比同时保持良好的热 介质的稳定性。 在一些实施例中，中间层是诸如CoCrPtBTa合金的五元合金。
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10.发明授权Magnetic thin film media with an underlayer of CrMoZr, CrMoNb or CrMoMn 有权具有CrMoZr，CrMoNb或CrMoMn底层的磁性薄膜介质公开(公告)号：US07300713B2
公开(公告)日：2007-11-27
申请号：US10976557
申请日：2004-10-29
Applicant: Xiaoping Bian , Jack Chang , Ernesto E. Marinero , Mohammad Mirzamaani
Inventor： Xiaoping Bian , Jack Chang , Ernesto E. Marinero , Mohammad Mirzamaani
CPC classification number: G11B5/7325 , G11B5/66
Abstract: A thin film disk for use in magnetic recording with an underlayer structure that includes a layer of CrMoZr, CrMoNb or CrMoMn is described. The preferred embodiment includes a circumferentially textured glass substrate, a pre-seed layer, a B2 seed layer, an underlayer structure and a magnetic layer stack with a plurality of layers. The preferred underlayer structure has a first underlayer of CrTi followed by a second underlayer of CrMoZr. The preferred B2 seed layer material is RuAl. The preferred pre-seed layer is CrTiAl. The preferred magnetic layer stack is CoCr/CoPtCrB/CoPtCrBCu. The preferred embodiment is useful for longitudinal magnetic recording. The in-plane crystallographic orientation, the Mrt orientation ratio and the media SNR are improved by the inclusion of the CrMoZr, CrMoNb or CrMoMn according to the invention.
Abstract translation: 描述了用于具有包括CrMoZr，CrMoNb或CrMoMn层的底层结构的磁记录的薄膜盘。 优选实施例包括周向纹理化的玻璃基板，预种子层，B2种子层，下层结构和具有多个层的磁性层堆叠。 优选的底层结构具有CrTi的第一底层，之后是CrMoZr的第二底层。 优选的B2种子层材料是RuAl。 优选的种子前层是CrTiAl。 优选的磁性层堆叠是CoCr / CoPtCrB / CoPtCrBCu。 优选实施例对于纵向磁记录是有用的。 通过包括根据本发明的CrMoZr，CrMoNb或CrMoMn，提高了面内晶体取向，Mrt取向比和介质SNR。
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