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    • 82. 发明授权
    • Method of manufacturing a perpendicular magnetic recording medium, a method of manufacturing a substrate for a perpendicular magnetic recording medium, and a medium and a substrate manufactured by the methods
    • 垂直磁记录介质的制造方法,垂直磁记录介质用基板的制造方法以及由该方法制造的介质和基板
    • US08167685B2
    • 2012-05-01
    • US11925333
    • 2007-10-26
    • Shoji SakaguchiHiroyuki NakamuraHideki Matsuo
    • Shoji SakaguchiHiroyuki NakamuraHideki Matsuo
    • B24B1/00G11B5/62G11B7/24
    • G11B5/8404B24B19/028B24B21/004
    • A method of manufacturing a perpendicular magnetic recording medium and a substrate for the medium are disclosed, in which abnormal protrusions on an underlayer made of a Ni—P alloy are automatically eliminated while maintaining a flat surface with high accuracy on the underlayer, and appropriate texture traces remain to promote magnetization alignment in the vertical direction in a perpendicular magnetic recording medium without adversely affecting the magnetization alignment. In the method, texture processing is carried out on an underlayer made of a Ni—P alloy on a nonmagnetic base plate using a polishing tape while supplying mixed slurry of a surfactant and abrasive grains of polycrystalline diamond, and then, texture polishing is carried out on the underlayer processed by the texture processing, using a polishing tape while supplying slurry containing an abrasive material and an organic acid until the surface of the underlayer is polished to an arithmetic mean roughness Ra of at most 0.5 nm, preferably in the range of 0.05 nm to 0.2 nm.
    • 公开了制造用于介质的垂直磁记录介质和基板的方法,其中在Ni-P合金制成的底层上的异常突起被自动消除,同时在底层上保持高精度的平坦表面,并且具有适当的质地 留下痕迹以促进垂直磁记录介质中的垂直方向的磁化取向,而不会不利地影响磁化取向。 在该方法中,使用研磨带在非磁性基板上由Ni-P合金制成的底层进行纹理加工,同时供给表面活性剂和多晶金刚石的磨粒的混合浆料,然后进行织构研磨 在通过纹理处理处理的底层上,使用抛光带,同时供给含有研磨材料和有机酸的浆料,直到底层的表面被抛光至至多0.5nm的算术平均粗糙度Ra,优选在0.05的范围内 nm至0.2nm。
    • 88. 发明申请
    • RECORDING SYSTEM AND COMMUNICATION CONTROL METHOD FOR A RECORDING SYSTEM
    • 记录系统的记录系统和通信控制方法
    • US20110019231A1
    • 2011-01-27
    • US12841107
    • 2010-07-21
    • Hiroyuki Nakamura
    • Hiroyuki Nakamura
    • G06F3/12
    • H04N1/00214G06F3/1215G06F3/1236G06F3/1284G06F21/608H04N2201/0041H04N2201/0049
    • A host computer and recording device can be connected using an existing communication interface, and data can be transmitted between the host computer and recording device at high speed. A recording system 1 has a printer 4 with a plurality of serial interfaces 4A, 4B that can communicate independently, and a host computer 2 with a plurality of serial interfaces 2A, 2B that can communicate independently. The serial interfaces 4A, 4B and serial interfaces 2A, 2B are connected 1:1 to form communicate lines. A plurality of virtual communication channels are assigned to these communication lines and data is exchanged by packet communication over these communication channels. When the printer 4 and host computer 2 are connected through a plurality of communication lines 3A, 3B, only the data channel 31 is assigned to at least one communication line 3A.
    • 可以使用现有的通信接口连接主机和记录设备,并且可以在主机和记录设备之间高速传输数据。 记录系统1具有能够独立通信的多个串行接口4A,4B的打印机4和具有能够独立通信的多个串行接口2A,2B的主计算机2。 串行接口4A,4B和串行接口2A,2B以1:1连接以形成通信线路。 多个虚拟通信信道被分配给这些通信线路,并且通过这些通信信道通过分组通信交换数据。 当打印机4和主机2通过多条通信线路3A,3B连接时,仅将数据信道31分配给至少一条通信线路3A。
    • 89. 发明申请
    • ELASTIC WAVE FILTER, AND DUPLEXER AND ELECTRONIC DEVICE USING SAME
    • 弹性波滤波器,以及使用相同的双工器和电子设备
    • US20110006855A1
    • 2011-01-13
    • US12921580
    • 2009-03-04
    • Joji FujiwaraTetsuya TsurunariHiroyuki NakamuraRei Goto
    • Joji FujiwaraTetsuya TsurunariHiroyuki NakamuraRei Goto
    • H03H7/01H01P1/20
    • H03H9/725H03H9/0023H03H9/0038H03H9/0071H03H9/6436H03H9/6476H03H9/70
    • An elastic wave filter has first, second, and third IDT electrodes whose wiring electrodes are connected to unbalanced signal terminal; fourth IDT electrode disposed between the first and second IDT electrodes; fifth IDT electrode disposed between the second and third IDT electrodes; and first and second balanced signal terminals connected to the wiring electrodes of fourth and fifth IDT electrodes, respectively. The ground electrodes of the first through fifth IDT electrodes are connected to the ground. Signals in opposite phase and in phase with a signal input to unbalanced signal terminal are output from first and second balanced signal terminals, respectively. The wiring electrodes of second and third IDT electrodes are adjacent to the ground electrode of fifth IDT electrode. The wiring electrode of one of first and second IDT electrodes is adjacent to the wiring electrode of fourth IDT electrode. The ground electrode of the other is adjacent to the ground electrode of fourth IDT electrode. This configuration can suppress spuriousness in the bandpass.
    • 弹性波滤波器具有第一,第二和第三IDT电极,其布线电极连接到不平衡信号端子; 第四IDT电极,设置在第一IDT电极和第二IDT电极之间; 设置在第二和第三IDT电极之间的第五IDT电极; 以及分别连接到第四和第五IDT电极的布线电极的第一和第二平衡信号端子。 第一至第五IDT电极的接地电极连接到地面。 分别从第一和第二平衡信号端子输出与信号输入到不平衡信号端的反相和同相的信号。 第二IDT电极和第三IDT电极的布线电极与第五IDT电极的接地电极相邻。 第一IDT电极和第二IDT电极之一的布线电极与第四IDT电极的布线电极相邻。 另一个的接地电极与第四IDT电极的接地电极相邻。 该配置可以抑制带通中的杂散。