公开(公告)号：US08022852B2

公开(公告)日：2011-09-20

申请号：US12188863

申请日：2008-08-08

申请人： Keitaro Yamashita

发明人： Keitaro Yamashita

IPC分类号： H03M1/66

CPC分类号： H03M1/68 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2320/0257 ,  G09G2320/0276 ,  H03M1/802 ,  H03M1/88

摘要： This invention provides a digital-analog converter circuit capable of appropriately correcting the optical characteristics of the liquid crystals according to the change in design or the preference of the user, and achieving goals of miniaturization, cost-lowering, as well as wide design suitability. The digital-analog converter circuit includes a storage device for storing a voltage characteristic curve, a modulating device for generating a frequency signal in accordance with a data from the voltage characteristic curve stored in the storage device in response to a selected data, a variable resistance device connected between a first power source and a second power source, in which the resistance value of the variable resistance device is changed in accordance with the frequency signal from the modulating device, a holding device for holding a voltage generated at the variable resistance device, and an output device for outputting the voltage to a desired output end.

摘要翻译： 本发明提供一种能够根据设计变化或用户偏好适当地校正液晶的光学特性的数模转换电路，实现小型化，降低成本以及广泛的设计适用性的目标。 数模转换器电路包括用于存储电压特性曲线的存储装置，用于响应于所选数据根据存储在存储装置中的电压特性曲线的数据产生频率信号的调制装置，可变电阻 连接在第一电源和第二电源之间的装置，其中可变电阻装置的电阻值根据来自调制装置的频率信号而改变，保持装置用于保持在可变电阻装置处产生的电压， 以及用于将电压输出到期望的输出端的输出装置。

公开(公告)号：US07755454B2

公开(公告)日：2010-07-13

申请号：US12095089

申请日：2006-11-08

申请人： Masahiro Tanaka ,  Takashi Kinoshita ,  Keitaro Yamashita

发明人： Masahiro Tanaka ,  Takashi Kinoshita ,  Keitaro Yamashita

IPC分类号： H03H9/00 ,  H03H9/70

CPC分类号： H02N1/006 ,  H03H9/2426 ,  H03H9/2463 ,  H03H9/525

摘要： Provided is a micro-electromechanical device capable of processing an electric signal in the high frequency region by a simple device structure. The micro-electromechanical device is formed, including an oscillator element having a plurality of electrodes disposed on a substrate and a beam facing the electrodes to oscillate by electrostatic drive. An input/output of a high frequency signal is applied to one of the combinations of the electrodes and the beam.

摘要翻译： 提供一种能够通过简单的装置结构处理高频区域中的电信号的微机电装置。 形成微机电装置，其包括具有设置在基板上的多个电极的振荡器元件和面向电极的波束，其通过静电驱动而振荡。 高频信号的输入/输出被施加到电极和光束的组合之一。

公开(公告)号：US20090237343A1

公开(公告)日：2009-09-24

申请号：US12381262

申请日：2009-03-09

申请人： Minoru Shibazaki ,  Keitaro Yamashita

发明人： Minoru Shibazaki ,  Keitaro Yamashita

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G02F1/13624 ,  G09G2300/0456 ,  G09G2310/0262 ,  G09G2320/0233

摘要： This present invention provides a liquid crystal display (LCD) device in which the sub-pixel is provided with three different voltage levels, so that image quality is improved without the configuration of additional gate lines. The present invention overcomes the reduction of aperture ratio in conventional LCD devices due to the configuration of additional gate lines. By the present invention, the white washout problem relating to the off-axis viewing angle can be overcome while the aperture ratio is not reduced.

摘要翻译： 本发明提供了一种液晶显示（LCD）装置，其中子像素具有三个不同的电压电平，使得在没有附加栅极线的配置的情况下，图像质量得到改善。 由于附加栅极线的配置，本发明克服了常规LCD器件中的开口率的降低。 通过本发明，可以克服与轴向视角有关的白色冲洗问题，同时孔径比不降低。

公开(公告)号：US20080165302A1

公开(公告)日：2008-07-10

申请号：US11791044

申请日：2005-12-26

申请人： Masaru Yasui ,  Masahide Inoue ,  Keitaro Yamashita

发明人： Masaru Yasui ,  Masahide Inoue ,  Keitaro Yamashita

IPC分类号： G02F1/133

CPC分类号： G09G3/3648 ,  G09G3/3655 ,  G09G3/3659 ,  G09G2300/043 ,  G09G2300/0809 ,  G09G2300/0876 ,  G09G2320/0204 ,  G09G2320/0214 ,  G09G2320/0219 ,  G09G2320/0247

摘要： It is an object to provide an active matrix liquid crystal display device capable of effectively eliminating flicker with a simple structure. An active matrix liquid crystal display device has a plurality of gate lines, a plurality of source busses extending orthogonal to the gate lines, a plurality of liquid crystal elements provided in intersections of the gate lines with the source busses and, as a whole, disposed in matrix form, the liquid crystal devices being connected between a pixel electrode and an opposite electrode connected to a first bus line in a floating condition, a plurality of control circuits provided in relation with the liquid crystal element, the control circuits having: first and second transistors, of which gates are connected to the gate lines respectively, arranged in series between the source busses and the pixel electrode, a third transistor provided between a midpoint node of the first and second transistors and a second bus line to serve as a switch, the second bus line being identical in potential to the first bus line and being electrically isolated from the first bus line, and a fourth transistor connected in parallel with the liquid crystal elements between the pixel electrode and the opposite electrode to detect drain voltage.

摘要翻译： 本发明的目的是提供一种能够以简单结构有效地消除闪烁的有源矩阵液晶显示装置。 有源矩阵液晶显示装置具有多个栅极线，与栅极线正交延伸的多个源极总线，设置在栅极线与源极总线交叉的多个液晶元件，并且整体上设置 以矩阵形式，液晶装置连接在浮置状态下连接到第一总线的像素电极和对置电极之间，与液晶元件相关地设置的多个控制电路，所述控制电路具有：第一和 第二晶体管，其栅极分别连接到栅极线，串联布置在源总线和像素电极之间;第三晶体管，其设置在第一和第二晶体管的中点节点和第二总线之间，用作开关 ，所述第二总线与所述第一总线线路的电位相同并且与所述第一总线线路电隔离，以及第四总线 存储器与像素电极和相对电极之间的液晶元件并联连接，以检测漏​​极电压。

公开(公告)号：US20050008341A1

公开(公告)日：2005-01-13

申请号：US10732522

申请日：2003-12-11

申请人： Hiroaki Yada ,  Keitaro Yamashita

发明人： Hiroaki Yada ,  Keitaro Yamashita

IPC分类号： G11B20/14 ,  G11B5/127 ,  G11B5/55 ,  G11B21/10 ,  H04N7/64

CPC分类号： G11B5/127 ,  G11B5/5526

摘要： Disclosed herein is a magnetic disk apparatus such as a hard disk apparatus or a removable hard disk apparatus which allows switching of the speed of rotation of a magnetic disk while assuring a sufficient tracking control characteristic and a sufficient capacity. More concretely, a magnetic disk apparatus of the present invention, in which tracking of a magnetic head is controlled with reference to a plurality of servo areas formed at predetermined angular distances on a magnetic disk to access the magnetic disk, includes; the servo areas being formed in synchronism with a fixed clock signal such that reference patterns for tracking control are formed therein, a clock generation means for generating a clock signal common to the plurality of servo areas with reference to reproduction signals obtained from the servo areas, a tracking control signal generation means for generating a control signal for tracking control from the reference patterns with reference to the clock signal, a tracking control means for controlling tracking of said magnetic head with reference to the control signal, and a speed switching means for switching the speed of rotation of the magnetic disk.

摘要翻译： 这里公开了一种磁盘装置，例如硬盘装置或可移动硬盘装置，其允许切换磁盘的旋转速度，同时确保足够的跟踪控制特性和足够的容量。 更具体地，本发明的磁盘装置，其中参照在磁盘上以预定角度距离形成的多个伺服区域来控制磁头的跟踪以访问磁盘，包括： 伺服区域与固定的时钟信号同步形成，使得在其中形成用于跟踪控制的参考模式;时钟产生装置，用于参考从伺服区域获得的再现信号产生多个伺服区域共用的时钟信号， 跟踪控制信号产生装置，用于根据时钟信号产生用于从参考图形跟踪控制的控制信号;跟踪控制装置，用于参照控制信号控制所述磁头的跟踪;以及速度切换装置，用于切换 磁盘的旋转速度。

公开(公告)号：USRE37834E1

公开(公告)日：2002-09-10

申请号：US09014032

申请日：1998-01-27

申请人： Keitaro Yamashita

发明人： Keitaro Yamashita

IPC分类号： H01F700

CPC分类号： G03G15/0921 ,  B03C1/12 ,  H01F7/0268

摘要： The magnet roll according to the present invention comprising a cylindrical resin-bonded magnet, a first shaft formed by injection molding integrally with the cylindrical resin-bonded magnet at one end thereof, and a second shaft press-fitted into a bore of the cylindrical resin-bonded magnet at the opposite end thereof. A magnetic roll comprises a cylindrical resin-bonded magnet made primarily of a ferromagnetic powder and a thermoplastic resin having a modulus of longitudinal elasticity of at least 2×104 kg/cm2, a first shaft formed by injection molding integrally with the cylindrical resin-bonded magnet at one end thereof, and a second shaft made of a rigid conductive material and press-fitted into a bore of the cylindrical resin-bonded magnet at the opposite end thereof. The bore has a splined cross section, the second shaft provided with a base portion having a splined cross section complimentary to that of the bore, and the base portion is inserted into the bore. The ferromagnetic powder is made of at least one selected from the group consisting of barium ferrite, strontium ferrite, a rare earth-cobalt alloy and a rare earth-iron-boron alloy, and the thermoplastic resin is at least one selected from the group consisting of nylon-6, nylon-12 and nylon-66.

摘要翻译： 根据本发明的磁辊包括圆柱形树脂粘结磁体，通过与圆柱形树脂粘合磁体一体注射成型形成的第一轴 在其一端具有磁体，第二轴压在与其相对端的圆柱形树脂粘结磁体的孔中。 磁辊包括主要由铁磁粉末和纵向弹性模量为至少2x104kg / cm 2的热塑性树脂制成的圆柱形树脂粘结磁体，第一 其一端与圆柱形树脂粘结磁体一体注射形成的轴，以及由刚性导电材料制成的第二轴，并在其相对端压配合到圆柱形树脂粘结磁体的孔中。 孔具有花键横截面，第二轴设置有具有与孔的横截面互补的花键横截面的基部，并且基部插入孔中。 铁磁粉末由选自钡铁氧体，铁酸锶，稀土 - 钴合金和稀土 - 铁 - 硼合金中的至少一种制成，热塑性树脂是选自以下的至少一种： 尼龙-6，尼龙-12和尼龙-66。

公开(公告)号：US6057995A

公开(公告)日：2000-05-02

申请号：US826892

申请日：1997-04-09

申请人： Keitaro Yamashita ,  Tomihiro Nakagawa ,  Sakae Imaizumi ,  Keisuke Tejima

发明人： Keitaro Yamashita ,  Tomihiro Nakagawa ,  Sakae Imaizumi ,  Keisuke Tejima

IPC分类号： G11B23/03

CPC分类号： G11B23/0316 ,  G11B23/0308 ,  G11B23/0311

摘要： A disc cartridge having a disc-shaped recording medium, such as an optical disc or a magneto-optical disc, rotatably housed within a main cartridge body. The disc cartridge has a main cartridge body made up of an upper cartridge half and a lower cartridge half, and a disc-shaped recording medium rotatably accommodated within the main cartridge body. A recording and/or reproducing aperture is formed in at least one of major surfaces of the main cartridge body. A shutter is mounted for movement along a sidewall section of the main cartridge body between a position closing the aperture and a position closing the aperture. There is provided an inclined portion in the aperture inclined with respect to the inserting direction of the disc cartridge.

摘要翻译： 一种盘盒，其具有可转动地容纳在主盒体内的盘形记录介质，例如光盘或磁光盘。 盘盒具有由上半盒和下盒半部组成的主盒体，以及可旋转地容纳在主盒体内的盘形记录介质。 记录和/或再现孔形成在主盒体的主表面的至少一个中。 安装挡板以沿着主盒体的侧壁部分在关闭孔的位置和关闭孔的位置之间移动。 在孔中设置有相对于盘盒的插入方向倾斜的倾斜部分。

公开(公告)号：US5897246A

公开(公告)日：1999-04-27

申请号：US822867

申请日：1997-03-24

申请人： Keitaro Yamashita

发明人： Keitaro Yamashita

IPC分类号： G03G15/09

CPC分类号： G03G15/0921

摘要： A magnet roll including a cylindrical permanent magnet having a surface thereon a plurality of magnetic poles which extend along an axis of the magnet roll and an electroconductive ceramic layer formed at least on a circumferential surface of the cylindrical permanent magnet. The electroconductive ceramic layer may be TiC, WC, TiN, TiCN, CrN, ZrN, HfN, Ti+TiN, and Cr+CrN. The magnet roll is used in a developing method of developing a latent image on a photosensitive drum by a magnetic developer while applying a bias voltage to a developing zone, in which the number of the magnetic poles (N) satisfies the relation: N.gtoreq.(V.sub.1 /V.sub.2).times..pi.D/6, wherein V.sub.1 is a peripheral speed (mm/s) of the photosensitive drum, V.sub.2 is a peripheral speed of the magnet roll and D is an outer diameter (mm) of the magnet roll.

摘要翻译： 一种磁辊，包括具有表面的圆柱形永磁体，所述圆柱形永磁体具有沿磁体辊的轴线延伸的多个磁极和至少形成在圆柱形永磁体的圆周表面上的导电陶瓷层。 导电陶瓷层可以是TiC，WC，TiN，TiCN，CrN，ZrN，HfN，Ti + TiN和Cr + CrN。 磁体辊用于通过磁性显影剂在感光鼓上显影潜像的显影方法，同时向显影区域施加偏置电压，其中磁极数（N）满足关系：N> / =（V1 / V2）×piD / 6，其中V1是感光鼓的圆周速度（mm / s），V2是磁体辊的圆周速度，D是磁体辊的外径（mm） 。

公开(公告)号：US5537216A

公开(公告)日：1996-07-16

申请号：US433588

申请日：1995-05-03

申请人： Keitaro Yamashita ,  Masatoshi Kawano

发明人： Keitaro Yamashita ,  Masatoshi Kawano

IPC分类号： G11B20/02 ,  G01B15/04 ,  G11B19/02 ,  G11B20/00 ,  H04N5/913 ,  H04N7/16 ,  H04N5/76 ,  H04N7/167

CPC分类号： G01B15/04 ,  G11B19/02 ,  G11B20/00086 ,  H04N5/913 ,  H04N7/166

摘要： A spurious signal SSP whose frequency spectrum is located at frequencies [(N+(1/2)).multidot.fh] is multiplexed with a luminance signal Y so as to keep an interleaved relation between the spurious signal SSP and the luminance signal Y and the resultant signal is transmitted. When the spurious signal SSP is detected, the recording operation is inhibited. The spurious signal SSP is multiplexed with the luminance signal Y at a level such as not to exert an influence on the picture quality when the video signal is reproduced and seen by a monitor screen.

摘要翻译： 其频谱位于频率[（N +（1/2））xfh]处的寄生信号SSP与亮度信号Y多路复用，以保持杂散信号SSP和亮度信号Y之间的交织关系，并且得到的信号 被传送。 当检测到杂散信号SSP时，禁止记录操作。 寄生信号SSP与亮度信号Y以等级不同，当视频信号被监视器屏幕再现和观看时，不对图像质量产生影响。

公开(公告)号：US5488341A

公开(公告)日：1996-01-30

申请号：US254877

申请日：1994-06-06

申请人： Mikio Yamamoto ,  Keitaro Yamashita ,  Katsunobu Kiriyama

发明人： Mikio Yamamoto ,  Keitaro Yamashita ,  Katsunobu Kiriyama

IPC分类号： B03C1/12 ,  G03G15/09 ,  G03G21/00 ,  H01F7/02 ,  H01F41/02 ,  H01F3/00

CPC分类号： H01F41/028 ,  B03C1/12 ,  G03G15/0921 ,  G03G21/0047 ,  H01F7/0268 ,  Y10T29/49549 ,  Y10T29/49565

摘要： A permanent magnet member composed of an integral sintered body made of a ferrite magnet material, the integral sintered body including a cylindrical center portion and shaft portions formed at the opposite ends of the cylindrical center portion and each having a smaller diameter than that of the cylindrical center portion, the cylindrical center portion being provided with a plurality of magnetic poles extending axially and arranged circumferentially on an outer surface of the cylindrical center portion.

摘要翻译： 一种由铁氧体磁铁材料制成的整体式烧结体构成的永磁体构件，该整体式烧结体包括圆筒形中心部分和形成在圆柱形中心部分两端的轴部分，其直径小于圆柱形中心部分的直径 中心部分，圆柱形中心部分设置有多个沿轴向延伸并且周向设置在圆柱形中心部分的外表面上的磁极。