公开(公告)号：US08253163B2

公开(公告)日：2012-08-28

申请号：US12899758

申请日：2010-10-07

申请人： Shigeru Kusunoki ,  Junji Yahiro ,  Yoshihiko Hirota

发明人： Shigeru Kusunoki ,  Junji Yahiro ,  Yoshihiko Hirota

IPC分类号： H01L29/739

CPC分类号： H01L29/7397 ,  H01L24/06 ,  H01L24/48 ,  H01L24/49 ,  H01L25/16 ,  H01L27/0658 ,  H01L27/0761 ,  H01L29/0623 ,  H01L29/0661 ,  H01L29/404 ,  H01L29/8611 ,  H01L2224/0603 ,  H01L2224/48091 ,  H01L2224/49111 ,  H01L2224/49175 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/12036 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/1306 ,  H01L2924/13091 ,  H01L2224/45099 ,  H01L2924/00

摘要： A high voltage semiconductor device includes a semiconductor substrate, a p type base region in a first main surface, an n+ type emitter region in the p type base region, an n+ type cathode region adjacent to an end surface of the semiconductor substrate and not penetrating the semiconductor substrate, a p+ type collector region in a second main surface, a first main electrode, a second main electrode, a third main electrode, and a connection portion connecting the second main electrode and the third main electrode. A resistance between the p type base region and the n+ type cathode region is greater than a resistance between the p type base region and the p+ type collector region. In the high voltage semiconductor device in which an IGBT and a free wheel diode are formed in a single semiconductor substrate, occurrence of a snap-back phenomenon is suppressed.

摘要翻译： 高电压半导体器件包括半导体衬底，第一主表面中的ap型基极区域，p型基极区域中的n +型发射极区域，与半导体衬底的端面相邻的n +型阴极区域，并且不穿透 半导体衬底，第二主表面中的p +型集电极区域，第一主电极，第二主电极，第三主电极和连接第二主电极和第三主电极的连接部分。 p型基极区域和n +型阴极区域之间的电阻大于p型基极区域和p +型集电极区域之间的电阻。 在单个半导体基板中形成有IGBT和自由轮二极管的高电压半导体装置中，抑制了卡扣现象的发生。

公开(公告)号：US08164111B2

公开(公告)日：2012-04-24

申请号：US12899758

申请日：2010-10-07

申请人： Shigeru Kusunoki ,  Junji Yahiro ,  Yoshihiko Hirota

发明人： Shigeru Kusunoki ,  Junji Yahiro ,  Yoshihiko Hirota

IPC分类号： H01L29/739

摘要： A high voltage semiconductor device includes a semiconductor substrate, a p type base region in a first main surface, an n+ type emitter region in the p type base region, an n+ type cathode region adjacent to an end surface of the semiconductor substrate and not penetrating the semiconductor substrate, a p+ type collector region in a second main surface, a first main electrode, a second main electrode, a third main electrode, and a connection portion connecting the second main electrode and the third main electrode. A resistance between the p type base region and the n+ type cathode region is greater than a resistance between the p type base region and the p+ type collector region. In the high voltage semiconductor device in which an IGBT and a free wheel diode are formed in a single semiconductor substrate, occurrence of a snap-back phenomenon is suppressed.

公开(公告)号：US07319786B2

公开(公告)日：2008-01-15

申请号：US11375075

申请日：2006-03-15

申请人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

发明人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

IPC分类号： G06K9/00

CPC分类号： H04N1/56 ,  H04N1/46

摘要： The inventive image processing apparatus takes steps of 1) dividing an image to be processed into numerals of blocks; 2) determining whether a block is a color block or not; 3) determining whether the image is a color image or not based on the rate of color blocks to the entire blocks. Thereby, valid color pixel rate can be obtained at blocks belonging to a color region even though an image is almost monochrome but partially colored. Accordingly, the inventive image processing apparatus can appropriately determine whether the image is a color image or not.

摘要翻译： 本发明的图像处理装置采取以下步骤：1）将要处理的图像划分为块的数字; 2）确定块是否是颜色块; 3）基于整个块的颜色块的速率来确定图像是否是彩色图像。 因此，即使图像几乎是单色但部分着色，也可以在属于颜色区域的块处获得有效的彩色像素速率。 因此，本发明的图像处理装置可以适当地确定图像是否是彩色图像。

公开(公告)号：US07180636B2

公开(公告)日：2007-02-20

申请号：US09935345

申请日：2001-08-23

申请人： Fujio Hashimoto, legal representative ,  Nobue Hashimoto, legal representative ,  Yoshihiko Hirota

发明人： Keisuke Hashimoto, deceased

IPC分类号： H04N1/405

CPC分类号： H04N1/4092 ,  H04N1/40062

摘要： The present invention relates to an image processor provided in apparatuses such as digital copiers and printers, and that distinguishes between a character edge region and a continuous tone region of an original image and switches the tone reproduction processing between the regions.

摘要翻译： 本发明涉及一种在诸如数字复印机和打印机的设备中提供的图像处理器，并且区分原始图像的字符边缘区域和连续色调区域，并切换区域之间的色调再现处理。

公开(公告)号：US07177462B2

公开(公告)日：2007-02-13

申请号：US11169691

申请日：2005-06-30

申请人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

发明人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

IPC分类号： G06K9/00

CPC分类号： H04N1/56 ,  H04N1/46

摘要： The inventive image processing apparatus takes steps of 1) dividing an image to be processed into numerals of blocks; 2) determining whether a block is a color block or not; 3) determining whether the image is a color image or not based on the rate of color blocks to the entire blocks. Thereby, valid color pixel rate can be obtained at blocks belonging to a color region even though an image is almost monochrome but partially colored. Accordingly, the inventive image processing apparatus can appropriately determine whether the image is a color image or not.

摘要翻译： 本发明的图像处理装置采取以下步骤：1）将要处理的图像划分为块的数字; 2）确定块是否是颜色块; 3）基于整个块的颜色块的速率来确定图像是否是彩色图像。 因此，即使图像几乎是单色但部分着色，也可以在属于颜色区域的块处获得有效的彩色像素速率。 因此，本发明的图像处理装置可以适当地确定图像是否是彩色图像。

公开(公告)号：US20060222240A1

公开(公告)日：2006-10-05

申请号：US11375075

申请日：2006-03-15

申请人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

发明人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

IPC分类号： G06K9/00

CPC分类号： H04N1/56 ,  H04N1/46

摘要： The inventive image processing apparatus takes steps of 1) dividing an image to be processed into numerals of blocks; 2) determining whether a block is a color block or not; 3) determining whether the image is a color image or not based on the rate of color blocks to the entire blocks. Thereby, valid color pixel rate can be obtained at blocks belonging to a color region even though an image is almost monochrome but partially colored. Accordingly, the inventive image processing apparatus can appropriately determine whether the image is a color image or not.

摘要翻译： 本发明的图像处理装置采取以下步骤：1）将要处理的图像划分为块的数字; 2）确定块是否是颜色块; 3）基于整个块的颜色块的速率来确定图像是否是彩色图像。 因此，即使图像几乎是单色但部分着色，也可以在属于颜色区域的块处获得有效的彩色像素速率。 因此，本发明的图像处理装置可以适当地确定图像是否是彩色图像。

公开(公告)号：US07079685B1

公开(公告)日：2006-07-18

申请号：US09270716

申请日：1999-03-17

申请人： Yoshihiko Hirota ,  Kazuhiro Ishiguro

发明人： Yoshihiko Hirota ,  Kazuhiro Ishiguro

IPC分类号： G06K9/00

CPC分类号： H04N1/58 ,  H04N1/4092

摘要： In an image processor which converts color image data to image data of cyan, magenta, yellow and black necessary for forming an image, a black character edge is discriminated in R, G, B image data. The edge component in a black character area is deleted by narrowing on image data of cyan, magenta and yellow. Further, in a black character area, K data is replaced with maximum density data in the R, G, B data, and edge emphasis is performed on the substituted data. Then, reproducibility of a thin line portion in a character is improved largely.

摘要翻译： 在将彩色图像数据转换成用于形成图像所需的青色，品红色，黄色和黑色的图像数据的图像处理器中，在R，G，B图像数据中区分黑色字符边缘。 通过缩小青色，品红色和黄色的图像数据来删除黑色字符区域中的边缘分量。 此外，在黑色字符区域中，K数据被替换为R，G，B数据中的最大密度数据，并且对取代数据执行边缘加重。 然后，字符中细线部分的再现性大大提高。

公开(公告)号：US07072506B1

公开(公告)日：2006-07-04

申请号：US09263805

申请日：1999-03-08

申请人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

发明人： Yoshihiko Hirota ,  Katsuhisa Toyama ,  Shoji Imaizumi ,  Hideyuki Hashimoto ,  Kazuhiro Ishiguro

IPC分类号： G06K9/00

CPC分类号： H04N1/56 ,  H04N1/46

摘要： The inventive image processing apparatus takes steps of 1) dividing an image to be processed into numerals of blocks; 2) determining whether a block is a color block or not; 3) determining whether the image is a color image or not based on the rate of color blocks to the entire blocks. Thereby, valid color pixel rate can be obtained at blocks belonging to a color region even though an image is almost monochrome but partially colored. Accordingly, the inventive image processing apparatus can appropriately determine whether the image is a color image or not.

摘要翻译： 本发明的图像处理装置采取以下步骤：1）将要处理的图像划分为块的数字; 2）确定块是否是颜色块; 3）基于整个块的颜色块的速率来确定图像是否是彩色图像。 因此，即使图像几乎是单色但部分着色，也可以在属于颜色区域的块处获得有效的彩色像素速率。 因此，本发明的图像处理装置可以适当地确定图像是否是彩色图像。

公开(公告)号：US06809750B2

公开(公告)日：2004-10-26

申请号：US10646701

申请日：2003-08-25

申请人： Kazuhiro Ishiguro ,  Yoshihiko Hirota

发明人： Kazuhiro Ishiguro ,  Yoshihiko Hirota

IPC分类号： B41J2385

CPC分类号： H04N1/506

摘要： It is intended to provide an image forming apparatus and image forming method capable of partial magnification corrections on various partial variations of magnification as well as constant and uniform positional shift regardless of any sections. A modulated image clock of a reference color (black) is generated from a clock generated at an image clock generating section 23 and an address is generated at an address generating circuit 36 basing on the modulated image clock. Output sections 30 for respective colors other than the reference color read out correction coefficients from correction coefficient memories 15 of respective colors following the address generated. Frequency modulator circuits 31 modulate image clocks in accordance with correction coefficients. PWM 33 outputs a driving pulse to a laser driver 6 basing on modulated image clocks synchronized with a reference signal 40 by synchronizer circuits 32 and inputted image data.

摘要翻译： 旨在提供一种能够对各种部分偏移变化进行部分放大校正以及位置偏移恒定且均匀的图像形成装置和图像形成方法，而不管任何部分。 从图像时钟产生部分23产生的时钟产生参考色（黑色）的调制图像时钟，并且基于调制图像时钟在地址产生电路36产生地址。 用于除了参考颜色之外的各种颜色的输出部分30从生成的地址之后的各种颜色的校正系数存储器15读出校正系数。 频率调制器电路31根据校正系数调制图像时钟。 PWM 33基于通过同步电路32和输入的图像数据与参考信号40同步的调制图像时钟向激光驱动器6输出驱动脉冲。

公开(公告)号：US06798534B1

公开(公告)日：2004-09-28

申请号：US09539891

申请日：2000-03-31

申请人： Junji Nishigaki ,  Yoshihiko Hirota ,  Nobuhiro Mishima

发明人： Junji Nishigaki ,  Yoshihiko Hirota ,  Nobuhiro Mishima

IPC分类号： G06F1500

CPC分类号： H04N1/41

摘要： An image forming apparatus comprising a buffer memory for storing image data, a printer unit for printing based on image data output from the buffer memory, a compression unit for compressing image data output from the buffer memory to generate compression data, a hard disk for storing the compression data compressed by the compression unit, and output unit for outputting compression data from the hard disk to the buffer memory, and an expansion unit for expanding the compression data output from the buffer memory and outputting the expansion data to the printer unit. When printing multiple copies, image data are highly compressed and stored on a hard disk, and output directly to a buffer memory in a highly compressed state. Thereafter, the data are expanded and transmitted to the printer. As a result, multiple copy printing is accomplished at high speed.

摘要翻译： 一种图像形成装置，包括用于存储图像数据的缓冲存储器，用于基于从缓冲存储器输出的图像数据进行打印的打印机单元，用于压缩从缓冲存储器输出的图像数据以产生压缩数据的压缩单元，用于存储的硬盘 由压缩单元压缩的压缩数据，以及用于将压缩数据从硬盘输出到缓冲存储器的输出单元，以及扩展单元，用于扩展从缓冲存储器输出的压缩数据，并将扩展数据输出到打印机单元。 当打印多个副本时，图像数据被高度压缩并存储在硬盘上，并以高度压缩的状态直接输出到缓冲存储器。 此后，数据被扩展并传送到打印机。 结果，多次复印是高速完成的。