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    Magnetic semiconductor element and a magneto-optical read out head
    1.
    发明授权
    Magnetic semiconductor element and a magneto-optical read out head 失效
    磁性半导体元件和磁光读出头

    公开(公告)号：US5229621A

    公开(公告)日：1993-07-20

    申请号：US888422

    申请日：1992-05-26

    申请人： Matahiro Komuro ,  Yuzo Kozono ,  Masanobu Hanazono

    发明人： Matahiro Komuro ,  Yuzo Kozono ,  Masanobu Hanazono

    IPC分类号： H01L27/22

    CPC分类号： H01S5/0607 ,  B82Y20/00 ,  G11B11/10543 ,  H01S2301/173 ,  H01S5/34313

    摘要： A magnetic semiconductor element formed by joining a magnetostrictive material and a semiconductive material with each other, in which the lattice constant of the semiconductive material is variable by magnetostriction at the interface therebetween; or in which an interface between the two materials is formed by epitaxial growth and the orientation of the magnetostriction is identical to the orientation in which the lattice constant of the semiconductive material varies. Next, a semiconductor laser is so constructed that the interface between the magnetostrictive material and the semiconductive material is disposed in the semiconductor laser and the wavelength and the output of the semiconductor laser are variable by magnetostriction. Further, a method of making a magnetic semiconductor element comprises a step of epitaxially growing the layer of the magnetostrictive material on the layer made of the semiconductive material. Furthermore, a magneto-optical read out head is so constructed that the interface formed by joining the magnetostrictive material and the semiconductive material with each other is disposed in the semiconductor laser constituting a head reading out information recorded in a magnetic recording medium.

    摘要翻译： 通过将磁致伸缩材料和半导体材料彼此接合而形成的磁性半导体元件，其中半导体材料的晶格常数可通过它们之间的界面处的磁致伸缩而变化; 或者其中通过外延生长形成两种材料之间的界面，并且磁致伸缩的取向与半导体材料的晶格常数变化的取向相同。 接下来，半导体激光器被构造成使得磁致伸缩材料和半导体材料之间的界面设置在半导体激光器中，半导体激光器的波长和输出通过磁致伸缩而变化。 此外，制造磁性半导体元件的方法包括在由半导体材料制成的层上外延生长磁致伸缩材料层的步骤。 此外，磁光读出头被构造成使得通过将磁致伸缩材料和半导体材料彼此接合而形成的界面设置在半导体激光器中，该半导体激光器构成磁头读出记录在磁记录介质中的信息。

    Rare-earth magnet
    4.
    发明授权
    Rare-earth magnet 失效
    稀土磁铁

    公开(公告)号：US08119260B2

    公开(公告)日：2012-02-21

    申请号：US11189912

    申请日：2005-07-27

    申请人： Matahiro Komuro ,  Yuichi Satsu ,  Kunihiro Maeda ,  Yuzo Kozono

    发明人： Matahiro Komuro ,  Yuichi Satsu ,  Kunihiro Maeda ,  Yuzo Kozono

    IPC分类号： B32B15/04

    CPC分类号： H02K1/02 ,  H01F1/0572 ,  H01F1/0577 ,  H01F41/0293 ,  Y10T428/32 ,  Y10T428/325

    摘要： In a ferromagnetic material containing at least one kind of rare-earth element, a layer containing at least one kind of alkaline earth element or rare-earth element and fluorine is formed at the grain boundary or near the powder surface of the ferromagnetic material. A further layer containing at least one kind of rare-earth element, having a fluorine concentration lower than that of the layer described first and having a rare-earth element concentration higher than that of the host phase of the ferromagnetic material, or an oxide layer containing a rare-earth element is formed in adjacent with a portion of the layer described first.

    摘要翻译： 在含有至少一种稀土元素的铁磁材料中，在铁磁材料的晶界或粉末表面附近形成含有至少一种碱土金属或稀土元素和氟的层。 含有至少一种稀土元素的另一层，其氟浓度低于首先介绍的层，其稀土元素浓度高于铁磁材料的主相，或氧化物层 含有稀土元素的层与第一层的一部分相邻地形成。

    RARE-EARTH MAGNET
    6.
    发明申请
    RARE-EARTH MAGNET 审中-公开
    稀土磁铁

    公开(公告)号：US20120175986A1

    公开(公告)日：2012-07-12

    申请号：US13346756

    申请日：2012-01-10

    申请人： Matahiro Komuro ,  Yuichi Satsu ,  Kunihiro Maeda ,  Yuzo Kozono

    发明人： Matahiro Komuro ,  Yuichi Satsu ,  Kunihiro Maeda ,  Yuzo Kozono

    IPC分类号： H02K21/12 ,  B32B15/04

    CPC分类号： H02K1/02 ,  H01F1/0572 ,  H01F1/0577 ,  H01F41/0293 ,  Y10T428/32 ,  Y10T428/325

    摘要： In a ferromagnetic material containing at least one kind of rare-earth element, a layer containing at least one kind of alkaline earth element or rare-earth element and fluorine is formed at the grain boundary or near the powder surface of the ferromagnetic material. A further layer containing at least one kind of rare-earth element, having a fluorine concentration lower than that of the layer described first and having a rare-earth element concentration higher than that of the host phase of the ferromagnetic material, or an oxide layer containing a rare-earth element is formed in adjacent with a portion of the layer described first.

    摘要翻译： 在含有至少一种稀土元素的铁磁材料中，在铁磁材料的晶界或粉末表面附近形成含有至少一种碱土金属或稀土元素和氟的层。 含有至少一种稀土元素的另一层，其氟浓度低于首先介绍的层，其稀土元素浓度高于铁磁材料的主相，或氧化物层 含有稀土元素的层与第一层的一部分相邻地形成。

    Rare-earth magnet
    9.
    发明申请
    Rare-earth magnet 失效
    稀土磁铁

    公开(公告)号：US20060022175A1

    公开(公告)日：2006-02-02

    申请号：US11189912

    申请日：2005-07-27

    申请人： Matahiro Komuro ,  Yuichi Satsu ,  Kunihiro Maeda ,  Yuzo Kozono

    发明人： Matahiro Komuro ,  Yuichi Satsu ,  Kunihiro Maeda ,  Yuzo Kozono

    IPC分类号： H01B1/12

    CPC分类号： H02K1/02 ,  H01F1/0572 ,  H01F1/0577 ,  H01F41/0293 ,  Y10T428/32 ,  Y10T428/325

    摘要： In a ferromagnetic material containing at least one kind of rare-earth element, a layer containing at least one kind of alkaline earth element or rare-earth element and fluorine is formed at the grain boundary or near the powder surface of the ferromagnetic material. A further layer containing at least one kind of rare-earth element, having a fluorine concentration lower than that of the layer described first and having a rare-earth element concentration higher than that of the host phase of the ferromagnetic material, or an oxide layer containing a rare-earth element is formed in adjacent with a portion of the layer described first.

    摘要翻译： 在含有至少一种稀土元素的铁磁材料中，在铁磁材料的晶界或粉末表面附近形成含有至少一种碱土金属或稀土元素和氟的层。 含有至少一种稀土元素的另一层，其氟浓度低于首先介绍的层，其稀土元素浓度高于铁磁材料的主相，或氧化物层 含有稀土元素的层与第一层的一部分相邻地形成。