公开(公告)号：US08962866B2

公开(公告)日：2015-02-24

申请号：US13980203

申请日：2012-02-03

申请人： Yuki Amano ,  Naohiro Naito ,  Hisao Okada ,  Masaki Okubo ,  Yoshikazu Aoki ,  Hideyuki Otsuka

发明人： Yuki Amano ,  Naohiro Naito ,  Hisao Okada ,  Masaki Okubo ,  Yoshikazu Aoki ,  Hideyuki Otsuka

IPC分类号： C01B33/18 ,  C07F7/02 ,  G03G9/097

CPC分类号： C07F7/02 ,  C01B33/18 ,  C01P2006/40 ,  C09C1/3063 ,  C09C1/3081 ,  C09C1/309 ,  G03G9/09716 ,  G03G9/09725

摘要： Provided by the present invention is a surface-modified silica powder, characterized in that the said powder is obtained by surface treatment of a silica powder with one or two or more of a compound (A) and with an aminosilane (B), wherein the fixing rate of the compound (A) and the aminosilane (B) is a total of 50% or more, the hydrophobic rate is 80% or more, and the triboelectrostatic charge amount is 200 μC/g or less in its absolute value. The surface-modified silica powder of the present invention can stabilize many properties including fluidity and electrostatic properties while can significantly reduce problems such as fogging and decrease in image quality without significantly deteriorating characteristics of a developing agent and so forth when this is used as an external additive.

摘要翻译： 本发明提供一种表面改性二氧化硅粉末，其特征在于，所述粉末是通过用一种或两种以上的化合物（A）和氨基硅烷（B）进行二氧化硅粉末的表面处理得到的，其中， 化合物（A）和氨基硅烷（B）的定影率总共为50％以上，疏水率为80％以上，摩擦电位静电电荷的绝对值为200μC/ g以下。 本发明的表面改性二氧化硅粉末可以稳定包括流动性和静电特性的许多性能，同时可以显着降低诸如起雾和降低图像质量的问题，而不会显着降低显影剂等的特性，当将其用作外部 添加剂。

公开(公告)号：US20090317737A1

公开(公告)日：2009-12-24

申请号：US12421726

申请日：2009-04-10

申请人： Hisao Okada ,  Mitsuru Oikawa

发明人： Hisao Okada ,  Mitsuru Oikawa

IPC分类号： G03G9/09 ,  G03G9/08 ,  G03G5/00

CPC分类号： G03G9/0823 ,  G03G9/0806 ,  G03G9/0825 ,  G03G9/08797 ,  G03G9/0904

摘要： A color toner is provided which has a dielectric strength equal to or lower than that of a black toner containing carbon black, and which has an improved charging rate and charge stability against changes in the environment.

摘要翻译： 提供一种彩色调色剂，其具有等于或低于包含炭黑的黑色调色剂的介电强度，并且具有改善的充电速率和抵抗环境变化的电荷稳定性。

公开(公告)号：US07090956B2

公开(公告)日：2006-08-15

申请号：US10025550

申请日：2001-12-26

申请人： Katsuhiko Suzuki ,  Masami Ishikawa ,  Tsuneaki Kawanishi ,  Teruaki Mitsuya ,  Hisao Okada ,  Masayoshi Ishii

发明人： Katsuhiko Suzuki ,  Masami Ishikawa ,  Tsuneaki Kawanishi ,  Teruaki Mitsuya ,  Hisao Okada ,  Masayoshi Ishii

IPC分类号： G03G13/09

CPC分类号： G03G13/09 ,  G03G2215/0609 ,  G03G2215/0648

摘要： In an image forming method, when viewed from the moving direction of a photosensitive body 1, there is disposed, on the upstream side, a first developing roller 61 opposed to and adjacent to the photosensitive body 1 and rotatable in the opposite direction to the photosensitive body 1, while the peripheral speed ratio of the roller 61 to the photosensitive body 1 ranges from 0.8 to 2.0; on the downstream side of the roller 61, there is disposed a second developing roller 62 rotatable in the same direction to the photosensitive body 1, while the peripheral speed ratio of the roller 62 to the photosensitive body 1 ranges from 1.05 to 2.0; and the shape coefficient SF1 of the toners of two-component developing agent ranges from 120 to 170, while the shape coefficient SF2 ranges from 110 to 130.

摘要翻译： 在图像形成方法中，当从感光体1的移动方向观察时，在上游侧设置有与感光体1相对并邻近感光体1并可沿与感光体相反的方向旋转的第一显影辊61 而辊61与感光体1的圆周速度比在0.8至2.0的范围内; 在辊61的下游侧，设置有与感光体1相同的方向旋转的第二显影辊62，而辊62与感光体1的圆周速度比范围为1.05〜2.0; 双成分显影剂的调色剂的形状系数SF 1为120〜170，形状系数SF 2为110〜130。

公开(公告)号：US20060171729A1

公开(公告)日：2006-08-03

申请号：US11337548

申请日：2006-01-24

申请人： Hisao Okada ,  So-Won Sheen ,  Jong-Moon Eun

发明人： Hisao Okada ,  So-Won Sheen ,  Jong-Moon Eun

IPC分类号： G03G15/01 ,  G03G15/06

CPC分类号： G03G15/0121 ,  G03G15/065 ,  G03G2215/0167

摘要： A multicolor image forming apparatus includes a plurality of developing units and a development power supply unit. Each of the developing units includes a developing roller located at a development gap from a photosensitive body, deposits toner accommodated therein on a surface of the developing roller, and supplies the toner to the photosensitive body across the development gap. The development power supply unit applies a development bias voltage to developing rollers of the developing units, the developing bias voltage being a rectangular AC bias voltage in which a forward bias voltage and a reverse bias voltage alternate. A percentage of toner particles of the toner having diameter-charge amounts greater than a contamination limit diameter-charge amount of a toner particle is less than 5%.

摘要翻译： 多色成像设备包括多个显影单元和显影电源单元。 每个显影单元包括位于与感光体的显影间隙处的显影辊，将容纳在其中的调色剂沉积在显影辊的表面上，并将调色剂供应到感光体横跨显影间隙。 开发电源单元对显影单元的显影辊施加显影偏置电压，显影偏压为正交偏置电压和反向偏置电压交替的矩形AC偏置电压。 具有大于调色剂颗粒的污染极限直径 - 电荷量的直径电荷量的调色剂的调色剂颗粒的百分比小于5％。

公开(公告)号：US06815658B2

公开(公告)日：2004-11-09

申请号：US10252686

申请日：2002-09-24

申请人： Hisao Okada ,  Masayuki Takahashi ,  Hiroaki Ogawa

发明人： Hisao Okada ,  Masayuki Takahashi ,  Hiroaki Ogawa

IPC分类号： H01J4014

CPC分类号： G11C29/026 ,  G01R31/2829 ,  G11C27/026 ,  G11C29/02 ,  H04N5/32 ,  H04N5/335 ,  H04N17/002

摘要： A testing circuit 1, provided between an input terminal IN of an LSI 2 and the CSA 20, includes a switch NSW (a third switch), a capacitor CT which is connected in parallel to the switch NSW, and switches TC1 (a first switch) and TC2 (a second switch) which are connected in series across the capacitor CT. With this arrangement, the circuit including the capacitor CT and the CSA 20 can serve as a reverse amplifier circuit and can input a voltage waveform instead of the charges. Therefore, a conventional charge supply circuit is not necessary when the testing of a reading circuit 16 is carried out.

摘要翻译： 设置在LSI2的输入端子IN和CSA20之间的测试电路1包括：开关NSW（第三开关），与开关NSW并联连接的电容器CT，以及开关TC1（第一开关 ）和TC2（第二开关），它们跨过电容器CT串联连接。 利用这种布置，包括电容器CT和CSA 20的电路可以用作反向放大器电路，并且可以输入电压波形而不是电荷。 因此，当执行读取电路16的测试时，不需要传统的充电电路。

公开(公告)号：US06556229B2

公开(公告)日：2003-04-29

申请号：US09833811

申请日：2001-04-13

申请人： Teruaki Mitsuya ,  Nobuyoshi Hoshi ,  Hisao Okada ,  Yoshihiko Sano ,  Shinichi Akatsu ,  Shinya Kobayashi

发明人： Teruaki Mitsuya ,  Nobuyoshi Hoshi ,  Hisao Okada ,  Yoshihiko Sano ,  Shinichi Akatsu ,  Shinya Kobayashi

IPC分类号： G03G1501

CPC分类号： G03G15/011 ,  G03G2215/0495 ,  H04N1/40037

摘要： In an electrophotographic apparatus, regions having at least three different potential levels Vc, Vw, and Vr are formed on a photosensitive member by using an exposing device, and developing processes respectively using colored particles of different kinds are performed by normal development and reversal development on two potential levels Vc and Vr excluding the intermediate potential level Vw. The apparatus has an auxiliary exposing unit for forming a fringe development preventing potential in an edge of an image forming region in order to prevent fringe development from occurring. The auxiliary exposing unit sets an auxiliary exposure amount by performing pulse-width modulation on a laser driver.

摘要翻译： 在电子照相设备中，通过使用曝光装置在感光构件上形成具有至少三个不同电位电平Vc，Vw和Vr的区域，分别使用不同种类的着色颗粒的显影工艺通过正常显影和反转显影进行 不包括中间电位电平Vw的两个电位电平Vc和Vr。 该装置具有辅助曝光单元，用于在图像形成区域的边缘形成边缘显影防止电位，以防止发生边缘显影。 辅助曝光单元通过对激光驱动器进行脉冲宽度调制来设定辅助曝光量。

公开(公告)号：US06509895B2

公开(公告)日：2003-01-21

申请号：US09916343

申请日：2001-07-30

申请人： Toshihiro Yanagi ,  Hisao Okada ,  Tadatsugu Nishitani ,  Yuji Yamamoto ,  Takeshi Takarada

发明人： Toshihiro Yanagi ,  Hisao Okada ,  Tadatsugu Nishitani ,  Yuji Yamamoto ,  Takeshi Takarada

IPC分类号： G09G500

CPC分类号： H04N3/127 ,  G09G3/2011 ,  G09G3/2014 ,  G09G3/3614 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2330/021

摘要： A drive circuit for a display device supplying a plurality of gray-scale voltages to the display device, based on externally supplied digital video signal data, includes: a plurality of gray-scale power supplies, a plurality of drive power supplies, a unit for forming a first part of the plurality of gray-scale voltages using the gray-scale voltage power supplies, and a unit for forming a second part of the plurality of gray-scale voltages using the drive power supplies.

公开(公告)号：US06480691B2

公开(公告)日：2002-11-12

申请号：US09866835

申请日：2001-05-30

申请人： Hisao Okada

发明人： Hisao Okada

IPC分类号： G03G1509

CPC分类号： B82Y15/00 ,  G03G15/0921 ,  G03G2215/0634

摘要： In a developing roll, grooves of a length direction of a developing roll are formed on a surface of the developing roll on conditions that a ratio of a groove depth to a groove width is set to one or more and a ratio of a groove pitch to a groove width is set to two or more and a groove depth is set to three times or more a carrier particle size, and a magnetic pole of the inside of the developing roll is provided in a position of a doctor blade for regulating the amount of carriage of a developer roll, and further a magnetic force on the surface of the developing roll of the position of the doctor blade is set to 0.06 T or less.

摘要翻译： 在显影辊中，显影辊的长度方向的槽形成在显影辊的表面上，槽的槽深与槽宽的比率设定为一个或多个，槽间距与 槽宽度设定为两个以上，槽深度设定为载体粒径的三倍以上，并且显影辊内侧的磁极设置在刮刀的位置，用于调节 显影辊的滑动，并且在刮刀的位置的显影辊的表面上进一步的磁力设定为0.06T以下。

公开(公告)号：US6118421A

公开(公告)日：2000-09-12

申请号：US721717

申请日：1996-09-27

申请人： Takafumi Kawaguchi ,  Toshihiro Yanagi ,  Makoto Takeda ,  Hisao Okada

发明人： Takafumi Kawaguchi ,  Toshihiro Yanagi ,  Makoto Takeda ,  Hisao Okada

IPC分类号： G02F1/133 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/2011 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2320/0204 ,  G09G2320/0209 ,  G09G2320/0214 ,  G09G3/3614

摘要： A method for driving a liquid crystal panel including a plurality of pixel electrodes arranged in a matrix, a plurality of data lines respectively connected to the pixel electrodes in a plurality of columns, a plurality of gate lines respectively connected to the pixel electrodes in a plurality of rows, and a plurality of switching devices, respectively connected to the pixel electrodes, for connecting and disconnecting the corresponding pixel electrode and the corresponding data line based on a signal sent from the corresponding gate line. The method includes the step of applying a driving voltage having a waveform corresponding to image data used for display to each data line while inverting the driving voltage gate line by gate line and frame by frame, so as to maintain an average value of the driving voltage in each frame within a certain range.

摘要翻译： 一种用于驱动液晶面板的方法，所述液晶面板包括以矩阵形式布置的多个像素电极，分别连接到多个像素电极的多条数据线，分别连接到多个像素电极的多条栅极线 以及分别连接到像素电极的多个开关装置，用于基于从相应的栅极线发送的信号连接和断开对应的像素电极和相应的数据线。 该方法包括以下步骤：将具有对应于用于显示的图像数据的波形的驱动电压施加到每个数据线，同时通过栅极线和逐帧反相驱动电压栅极线，以便保持驱动电压的平均值 在每个帧内在一定范围内。

公开(公告)号：US5884119A

公开(公告)日：1999-03-16

申请号：US895032

申请日：1997-07-16

申请人： Seiji Maruo ,  Hisao Okada ,  Hiroyuki Mabuchi ,  Kazutoshi Obara ,  Kenichi Ito

发明人： Seiji Maruo ,  Hisao Okada ,  Hiroyuki Mabuchi ,  Kazutoshi Obara ,  Kenichi Ito

IPC分类号： B41J2/525 ,  B41J2/44 ,  G03G15/01 ,  G03G15/04 ,  G03G15/043 ,  G03G15/08

CPC分类号： G03G15/011

摘要： In the tri-level process in which positive and negative latent images are formed on a photosensitive body and then developed using toners of two colors (for example, red and black) charged respectively to opposite polarities with respect to the polarities of the latent images, there has been a problem of degrading the quality of a two-color picture by the appearance of a special phenomenon in which red toner is attached around a black image and black toner is attached around a red image by attraction of the reverse electric field. An exposure control is performed in order to suppress the fringe phenomenon.

摘要翻译： 在其中在感光体上形成正和负潜像然后使用相对于潜像的极性分别充电到相反极性的两种颜色（例如，红色和黑色）的调色剂显影的三级过程中， 通过出现红色调色剂附着在黑色图像上并且黑色调色剂通过吸引反向电场而附着在红色图像上的特殊现象出现了降低双色图像质量的问题。 进行曝光控制以抑制边缘现象。