公开(公告)号：US08318330B2

公开(公告)日：2012-11-27

申请号：US12642708

申请日：2009-12-18

申请人： Yucong Wang ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

发明人： Yucong Wang ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

IPC分类号： G11B5/127 ,  C04B35/117

CPC分类号： G11B5/3106 ,  G11B5/102 ,  G11B5/3173 ,  G11B5/40 ,  G11B5/6011 ,  Y10T428/1157

摘要： A substrate for a magnetic read/write head is disclosed. The substrate can reduce detachment of crystal grains when the substrate is machined. The substrate may be machined when the substrate is cut into strips or a flow path surface recess is formed to produce the magnetic read/write head. The reduced detachment of crystal grains makes the magnetic read/write head more resilient to chipping, which allows the magnetic read/write head to have a lower and more stable flying height that increases recording density.

摘要翻译： 公开了一种用于磁读/写头的衬底。 当加工衬底时，衬底可以减少晶粒的分离。 当衬底被切割成条带时或者形成流路表面凹部以产生磁读/写头时，可以对衬底进行加工。 晶粒的分离减少使得磁读/写头对切屑更具弹性，这使得磁读/写头具有更低和更稳定的飞行高度，从而提高了记录密度。

公开(公告)号：US20100091404A1

公开(公告)日：2010-04-15

申请号：US12642708

申请日：2009-12-18

申请人： Yucong WANG ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

发明人： Yucong WANG ,  Shuji Nakazawa ,  Yuuya Nakao ,  Takuya Gentsu ,  Nobuyuki Horiuchi

IPC分类号： G11B5/60 ,  G11B5/127

CPC分类号： G11B5/3106 ,  G11B5/102 ,  G11B5/3173 ,  G11B5/40 ,  G11B5/6011 ,  Y10T428/1157

摘要： A substrate for a magnetic read/write head is disclosed. The substrate can reduce detachment of crystal grains when the substrate is machined. The substrate may be machined when the substrate is cut into strips or a flow path surface recess is formed to produce the magnetic read/write head. The reduced detachment of crystal grains makes the magnetic read/write head more resilient to chipping, which allows the magnetic read/write head to have a lower and more stable flying height that increases recording density.

摘要翻译： 公开了一种用于磁读/写头的衬底。 当加工衬底时，衬底可以减少晶粒的分离。 当衬底被切割成条带时或者形成流路表面凹部以产生磁读/写头时，可以对衬底进行加工。 晶粒的分离减少使得磁读/写头对切屑更具弹性，这使得磁读/写头具有更低和更稳定的飞行高度，从而提高了记录密度。

公开(公告)号：US20100315743A1

公开(公告)日：2010-12-16

申请号：US12740692

申请日：2010-04-29

申请人： Yucong WANG ,  Shuji Nakazawa ,  Takuya Gentsu

发明人： Yucong WANG ,  Shuji Nakazawa ,  Takuya Gentsu

IPC分类号： G11B15/64 ,  G11B5/33

CPC分类号： G11B5/3106 ,  C04B35/117 ,  C04B35/62695 ,  C04B35/645 ,  C04B35/6455 ,  C04B2235/3206 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3856 ,  C04B2235/3886 ,  C04B2235/3895 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/6581 ,  C04B2235/661 ,  C04B2235/785 ,  C04B2235/80 ,  C04B2235/96 ,  C04B2235/963 ,  G11B5/102 ,  G11B5/255 ,  G11B5/3169 ,  G11B5/3173 ,  G11B5/6082 ,  Y10T428/1157 ,  Y10T428/1179

摘要： A substrate for a magnetic read/write head is disclosed. The substrate can reduce detachment of crystal grains when unexpected vibrations or impacts are applied. The substrate may be machined when the substrate is cut into strips or a flow path surface recess is formed to produce the magnetic read/write head. The reduced detachment of crystal grains makes the magnetic read/write head more resilient to chipping, which allows the magnetic read/write head to have good performance in read/write.

摘要翻译： 公开了一种用于磁读/写头的衬底。 当施加意外的振动或冲击时，基板可以减少晶粒的分离。 当衬底被切割成条带时或者形成流路表面凹部以产生磁读/写头时，可以对衬底进行加工。 晶粒的分离减少使得磁读/写头对切屑更具弹性，这使得磁读/写头在读/写中具有良好的性能。

公开(公告)号：US20100061013A1

公开(公告)日：2010-03-11

申请号：US12513457

申请日：2007-11-07

申请人： Shuji Nakazawa ,  Yucong Wang ,  Masahide Akiyama ,  Takuya Gentsu ,  Toshiyuki Sue

发明人： Shuji Nakazawa ,  Yucong Wang ,  Masahide Akiyama ,  Takuya Gentsu ,  Toshiyuki Sue

IPC分类号： G11B5/127 ,  C04B35/56 ,  G11B5/33

CPC分类号： G11B5/58 ,  B82Y30/00 ,  C04B35/117 ,  C04B35/5611 ,  C04B35/6455 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3843 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/761 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2235/963 ,  G11B5/40 ,  G11B5/6082 ,  Y10T428/1157

摘要： Greater emphasis has been placed on smoothness of the floating surface for the applications with floating height of 10 nm or less. To obtain a smooth floating surface, it must be polished with diamond abrasive having a mean particle size of 0.1 μm or less, and conventional ceramic sintered body has poor machinability and it is impossible to use the magnetic heads made of this ceramic sintered body at a floating height of 10 nm or less.The ceramic sintered body according to the present invention contains Al2O3 crystal grains, internal TiC crystal grains existing in the Al2O3 crystal grains and external TiC crystal grains other than the internal TiC crystal grains. The Al2O3 crystal grains and the external TiC crystal grains retain stress caused by the difference in thermal expansion coefficient remaining after sintering, so that the Al2O3 crystal grains and the external TiC crystal grains pull each other in the interface therebetween. As a result, when the ceramic sintered body is machined, micro-cracks generated in the interface can easily grow due to the residual stress in addition to the shearing force caused by the machining operation, so that machinability is improved.

摘要翻译： 对于浮动高度为10nm或更小的应用，浮动表面的光滑度更加重视。 为了获得平滑的浮动表面，必须用平均粒度为0.1μm以下的金刚石磨料抛光，并且常规的陶瓷烧结体具有差的机械加工性，并且不可能使用由该陶瓷烧结体制成的磁头 浮动高度为10nm以下。 根据本发明的陶瓷烧结体包含存在于Al 2 O 3晶粒中的Al 2 O 3晶粒，存在于内部TiC晶粒和外部TiC晶粒以外的TiC晶粒。 Al 2 O 3晶粒和外部TiC晶粒保持由烧结后剩余的热膨胀系数的差异引起的应力，使得Al 2 O 3晶粒和外部TiC晶粒在其间的界面处相互牵引。 结果，当加工陶瓷烧结体时，除了由机械加工操作引起的剪切力之外，由于残余应力，在界面中产生的微裂纹容易生长，从而提高了切削性。

公开(公告)号：US08173281B2

公开(公告)日：2012-05-08

申请号：US12513457

申请日：2007-11-07

申请人： Shuji Nakazawa ,  Yucong Wang ,  Masahide Akiyama ,  Takuya Gentsu ,  Toshiyuki Sue

发明人： Shuji Nakazawa ,  Yucong Wang ,  Masahide Akiyama ,  Takuya Gentsu ,  Toshiyuki Sue

IPC分类号： G11B5/127 ,  C04B35/117 ,  C04B35/56

CPC分类号： G11B5/58 ,  B82Y30/00 ,  C04B35/117 ,  C04B35/5611 ,  C04B35/6455 ,  C04B2235/3206 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3232 ,  C04B2235/3843 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/761 ,  C04B2235/77 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/96 ,  C04B2235/9607 ,  C04B2235/963 ,  G11B5/40 ,  G11B5/6082 ,  Y10T428/1157

摘要： A ceramic sintered body contains Al2O3 crystal grains, internal TiC crystal grains existing in the Al2O3 crystal grains and external TiC crystal grains other than the internal TiC crystal grains. The Al2O3 crystal grains and the external TiC crystal grains retain stress caused by the difference in thermal expansion coefficient remaining after sintering, so that the Al2O3 crystal grains and the external TiC crystal grains pull each other in the interface therebetween. As a result, when the ceramic sintered body is machined, micro-cracks generated in the interface can easily grow due to the residual stress in addition to the shearing force caused by the machining operation, so that machinability is improved.

摘要翻译： 陶瓷烧结体包含Al 2 O 3晶粒，存在于Al 2 O 3晶粒中的内部TiC晶粒和外部TiC晶粒以外的TiC晶粒。 Al 2 O 3晶粒和外部TiC晶粒保持由烧结后剩余的热膨胀系数的差异引起的应力，使得Al 2 O 3晶粒和外部TiC晶粒在其间的界面处相互牵引。 结果，当加工陶瓷烧结体时，除了由机械加工操作引起的剪切力之外，由于残余应力，在界面中产生的微裂纹容易生长，从而提高了切削性。

公开(公告)号：US5059562A

公开(公告)日：1991-10-22

申请号：US181553

申请日：1988-04-14

申请人： Takuya Gentsu

发明人： Takuya Gentsu

IPC分类号： C04B35/486

CPC分类号： C04B35/486

摘要： Disclosed is colored, partially stabilized zirconia ceramics containing a colorant component and a stabilizer, wherein the zirconia ceramics contains 0.05 to 15% by weight of zirconium carbide based on the entire ceramics, the content of free carbon is lower than 0.1% by weight, and the crystal phase of the zirconia is composed of tetragonal crystals.This colored, partially stabilized zirconia ceramics is prepared by a process comprising molding a composition comprising 0.1 to 10 parts by weight of a colorant component and 90 to 99.9 parts by weight of zirconia and a stabilizer into a molded body having a predetermined shape, sintering the molded body, and sintering the obtained sintered body in a carbon atmosphere to form ceramics containing 0.05 to 15% by weight of zirconium carbide, in which the crystal phase of zirconia is composed of tetragonal crystals.

摘要翻译： 公开了含有着色剂组分和稳定剂的着色的部分稳定的氧化锆陶瓷，其中所述氧化锆陶瓷包含基于整个陶瓷的0.05至15重量％的碳化锆，游离碳的含量低于0.1重量％，和 氧化锆的结晶相由四方晶构成。 该着色的部分稳定的氧化锆陶瓷通过以下方法制备，该方法包括将包含0.1至10重量份的着色剂组分和90至99.9重量份的氧化锆和稳定剂的组合物模塑成具有预定形状的成型体， 在碳气氛中烧结得到的烧结体，形成含有0.05〜15重量％的碳化锆的陶瓷，其中氧化锆的结晶相由四方晶构成。

公开(公告)号：US6102531A

公开(公告)日：2000-08-15

申请号：US218943

申请日：1998-12-22

申请人： Takuya Gentsu

发明人： Takuya Gentsu

IPC分类号： C04B35/00 ,  B41J2/14 ,  C04B35/48 ,  H01L41/09 ,  H02N2/00 ,  B41J2/045

CPC分类号： H01L41/0973 ,  H01L41/081 ,  B41J2002/14258

摘要： A piezoelectric film type actuator, which achieves large displacement by the traverse effect of electric-field-induced distortion with low voltage and is quick in response and wherein wiring patterns to electrodes may be simplified or may not be needed at all without giving adverse effect to the displacement of the thin substrate 1 should be provided. A piezoelectric film type actuators is produced by laminating a piezoelectric film 3 onto the thin substrate 1 through an intermediate layer 2 containing 40% or more platinum (Pt) or palladium (Pd) by weight attached on the thin substrate 1, and further laminating an electrode film 4 on the piezoelectric film 3.

摘要翻译： 一种压电薄膜式致动器，其通过低电压的电场诱发变形的横动效应实现大的位移，并且响应速度快，并且其中可以简化或可能不需要对电极的布线图案，而不会对其产生不利影响 应提供薄基片1的位移。 压电薄膜型致动器是通过将薄膜基板1上的压电薄膜3层压到薄基板1上的，含有40重量％以上的铂（Pt）或钯（Pd）的中间层2， 电极膜4上。

公开(公告)号：US5118457A

公开(公告)日：1992-06-02

申请号：US674668

申请日：1991-03-25

申请人： Takuya Gentsu

发明人： Takuya Gentsu

IPC分类号： C04B35/486

CPC分类号： C04B35/486

摘要： Disclosed is colored, partially stabilized zirconia ceramics containing a colorant component and a stabilizer, wherein the zirconia ceramics contains 0.05 to 15% by weight of zirconium carbide based on the entire ceramics, the content of free carbon is lower than 0.1% by weight, and the crystal phase of the zirconia is composed of tetragonal crystals.This colored, partially stabilized zirconia ceramics is prepared by a process comprising molding a composition comprising 0.1 to 10 parts by weight of a colorant component and 90 to 99.9 parts by weight of zirconia and a stabilizer into a molded body having a predetermined shape, sintering the molded body, and sintering the obtained sintered body in a carbon atmosphere to form ceramics containing 0.05 to 15% by weight of zirconium carbide, in which the crystal phase of zirconia is composed of tetragonal crystals.

摘要翻译： 公开了含有着色剂组分和稳定剂的着色的部分稳定的氧化锆陶瓷，其中所述氧化锆陶瓷包含基于整个陶瓷的0.05至15重量％的碳化锆，游离碳的含量低于0.1重量％，和 氧化锆的结晶相由四方晶构成。 该着色的部分稳定的氧化锆陶瓷通过以下方法制备，该方法包括将包含0.1至10重量份的着色剂组分和90至99.9重量份的氧化锆和稳定剂的组合物模塑成具有预定形状的成型体， 在碳气氛中烧结得到的烧结体，形成含有0.05〜15重量％的碳化锆的陶瓷，其中氧化锆的结晶相由四方晶构成。

公开(公告)号：US5889914A

公开(公告)日：1999-03-30

申请号：US455461

申请日：1995-05-31

申请人： Takuya Gentsu

发明人： Takuya Gentsu

IPC分类号： G02B6/24 ,  G02B6/30 ,  G02B6/36 ,  G02B6/38 ,  G02B6/40 ,  G02B6/26

CPC分类号： G02B6/3861 ,  G02B6/3839 ,  G02B6/30 ,  G02B6/3636 ,  G02B6/3652

摘要： A thin film layer formed of a material having good wetting properties with respect to solder is laid on a joining surface of a second substrate, and at the same time, a thin film layer formed of Au is laid on a joining surface excluding concave grooves of a first substrate, and optical fibers are placed in the concave grooves of said first substrate, and then urged by the second substrate from the upper side thereof to cause the thin film layer on the first substrate to be plastically deformed and joined by a solder. The solder allows the optical fibers to be urged against the concave grooves of the first substrate, and at the same time, the thin film layer which is formed of Au and protruded to the concave groove side allows a change in the volume of the solder and a dislocation of the optical fibers to be prevented, and the optical fibers to be positioned fixedly at a high accuracy in the concave grooves.

摘要翻译： 由相对于焊料具有良好润湿性的材料形成的薄膜层被放置在第二基板的接合表面上，同时将由Au形成的薄膜层放置在不包括凹槽的接合表面 第一基板和光纤被放置在所述第一基板的凹槽中，然后由第二基板从其上侧被施力，以使第一基板上的薄膜层塑性变形并通过焊料接合。 焊料允许光纤被迫抵抗第一基板的凹槽，同时，由Au形成并突出到凹槽侧的薄膜层允许焊料的体积变化，并且 要防止的光纤的位错，以及在凹槽中以高精度固定的光纤。