Patents by Inventor Eiji Sakai

Eiji Sakai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20090310068
    Abstract: The present invention provides a polarizing plate including: a layer of polarizer for polarizing incident light and emitting the polarized light; and a coating type optically anisotropic layer disposed on the side to which the polarized light is emitted from the polarizer layer.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 17, 2009
    Applicant: SONY CORPORATION
    Inventor: Eiji Sakai
  • Publication number: 20090219458
    Abstract: Disclosed herein is a liquid crystal display device having a liquid crystal between a drive substrate and a counter substrate, and a plurality of main pixels disposed so as to compose a display area, wherein either a liquid crystal alignment controlling factor or a spacer for substrate distance setting is provided in each of at least two sub-pixels of a plurality of sub-pixels composing the main pixel; and light shielding members provided in the at least two sub-pixels so as to correspond to either the liquid crystal alignment controlling factors or the spacers, respectively, are different in area in planar view from each other.
    Type: Application
    Filed: February 20, 2009
    Publication date: September 3, 2009
    Applicant: Sony Corporation
    Inventors: Kazuyuki Endo, Hironao Tanaka, Eiji Sakai, Shingo Kataoka, Seiji Uejima, Ryo Yamaoka, Shuichi Tatemori, Takeo Koito
  • Publication number: 20090135167
    Abstract: Disclosed herein is a display device including a first light sensor unit configured to include a light-receiving element and detect intensity of ambient light to a display area; a second light sensor unit configured to include a light-receiving element and be provided with an infrared filter disposed on an optical path to the light-receiving element; and a signal processor configured to execute difference processing for a detection signal of the first light sensor unit and a detection signal of the second light sensor unit, wherein the infrared filter is formed by stacking at least two kinds of color filters.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 28, 2009
    Applicant: Sony Corporation
    Inventors: Eiji Sakai, Takayuki Nakanishi, Seiji Uejima
  • Patent number: 7532276
    Abstract: A transflective liquid crystal display device can obtain a high luminance and a high contrast to realize a superior color repeatability and improve an image quality in a color display. In a second substrate 80, a region facing a region where a light reflection portion is formed includes a first region where a color filter layer is formed at a predetermined layer thickness and a second region where the color filer layer is not formed, and, in a first substrate, a layer thickness difference adjustment layer for adjusting a difference of a layer thickness of the liquid crystal layer generated by a height of step between the first region and the second region due to the color filter layer is formed in the region where the light reflection portion is formed so as to face the second region.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: May 12, 2009
    Assignee: Sony Corporation
    Inventors: Eiji Sakai, Shuichi Tatemori, Masaaki Kabe, Hidemasa Yamaguchi
  • Publication number: 20090079685
    Abstract: Disclosed herein is a liquid crystal display device that carries out image displaying through application of a voltage dependent upon an image to a liquid crystal in units of a certain period, wherein in the case of applying an overdrive voltage higher than a voltage for displaying of the image to the liquid crystal before application of the voltage, an application period of the overdrive voltage is set shorter than the certain period.
    Type: Application
    Filed: September 8, 2008
    Publication date: March 26, 2009
    Applicant: Sony Corporation
    Inventor: Eiji Sakai
  • Publication number: 20080151146
    Abstract: A liquid crystal display device is disclosed. The liquid crystal display includes a liquid crystal layer disposed between substrates opposing each other. A pixel of the liquid crystal display is alignment-divided into a plurality of sub-pixels. A dielectric member is provided on a connection portion where the sub-pixels are electrically connected.
    Type: Application
    Filed: December 7, 2007
    Publication date: June 26, 2008
    Applicant: Sony Corporation
    Inventors: Takeo Koito, Shingo Kataoka, Eiji Sakai, Hiroshi Nishikawa
  • Publication number: 20080111932
    Abstract: A liquid crystal display is disclosed. The liquid crystal display has a driving substrate on which transparent pixel electrodes are formed; a counter substrate on which a counter electrode is formed; and a liquid crystal material disposed between the driving substrate and the counter substrate, molecules of the liquid crystal material being oriented orthogonally to the substrates. The driving substrate has pixel capacitors and pixel transistors formed thereon, the pixel capacitors being disposed under the pixel electrodes, the pixel transistors acting to write signal voltages to the pixel electrodes and to the pixel capacitors. The pixel electrodes have slits formed over the pixel capacitors to orient the molecules of the liquid crystal material orthogonally and in a split manner. Each of the pixel capacitors has an electrode for reflecting light and forms a reflective region.
    Type: Application
    Filed: June 26, 2007
    Publication date: May 15, 2008
    Applicant: SONY CORPORATION
    Inventors: Hidemasa Yamaguchi, Shuichi Tatemori, Masaaki Kabe, Yosuke Motoyama, Eiji Sakai
  • Publication number: 20070126537
    Abstract: An electric rotary machine, an armature for use in the electric machine, a method of forming an electric rotary machine and a forming machine for an armature of an electric rotary machine are disclosed wherein insulator-coated coils are wound in slots of an armature core from which lower and upper layer coil extensions extend and are connected to a commutator. The upper layer coil extension has a contour deformation part at an intersecting region where the lower and upper layer coil extensions intersect with each other to have an insulating distance between the lower and upper layer coil extensions. The forming machine includes a work holder holding the armature, and a forming jig forming a curvature portion on the upper layer coil extension.
    Type: Application
    Filed: November 14, 2006
    Publication date: June 7, 2007
    Applicant: DENSO CORPORATION
    Inventors: Kazuyuki Kitou, Akiyasu Itoh, Katsunobu Inoue, Eiji Sakai, Minoru Fukui
  • Publication number: 20070040968
    Abstract: A transflective liquid crystal display device can obtain a high luminance and a high contrast to realize a superior color repeatability and improve an image quality in a color display. In a second substrate 80, a region facing a region where a light reflection portion is formed includes a first region where a color filter layer is formed at a predetermined layer thickness and a second region where the color filer layer is not formed, and, in a first substrate, a layer thickness difference adjustment layer for adjusting a difference of a layer thickness of the liquid crystal layer generated by a height of step between the first region and the second region due to the color filter layer is formed in the region where the light reflection portion is formed so as to face the second region.
    Type: Application
    Filed: September 9, 2004
    Publication date: February 22, 2007
    Inventors: Eiji Sakai, Shuichi Tatemori, Masaaki Kabe, Hidemasa Yamaguchi
  • Patent number: 7133096
    Abstract: A liquid crystal display device free from reduction of chromaticity and having a good image quality in comparison with a normally white mode semi-transmission liquid crystal display device even in a case of employing a normally black mode, able to secure a gap of a reflection portion able to suppress occurrence of defects, enabling a reduction of voltage, able to realize a reduction of power consumption, exhibiting a more natural color of the dark state of transmission, and able to improve the image quality, wherein a reflection portion and a transmission portion are provided in one pixel, a normally black mode which becomes a dark state when no voltage is supplied is employed, an orientation mode of the liquid crystals is a twist orientation, a polarization plate and one phase difference plate are provided on a viewing surface side, and a polarization plate is provided on a back surface side.
    Type: Grant
    Filed: February 26, 2004
    Date of Patent: November 7, 2006
    Assignee: Sony Corporation
    Inventors: Masaaki Kabe, Youko Takada, Eiji Sakai, Makoto Jisaki, Hidemasa Yamaguchi, Shuichi Tatemori
  • Publication number: 20060187390
    Abstract: A liquid crystal display device free from reduction of chromaticity and having a good image quality in comparison with a normally white mode semi-transmission liquid crystal display device even in a case of employing a normally black mode, able to secure a gap of a reflection portion able to suppress occurrence of defects, enabling a reduction of voltage, able to realize a reduction of power consumption, exhibiting a more natural color of the dark state of transmission, and able to improve the image quality, wherein a reflection portion and a transmission portion are provided in one pixel, a normally black mode which becomes a dark state when no voltage is supplied is employed, an orientation mode of the liquid crystals is a twist orientation, a polarization plate and one phase difference plate are provided on a viewing surface side, and a polarization plate is provided on a back surface side.
    Type: Application
    Filed: April 25, 2006
    Publication date: August 24, 2006
    Inventors: Masaaki Kabe, Youko Takada, Eiji Sakai, Makoto Jisaki, Hidemasa Yamaguchi, Shuichi Tatemori
  • Publication number: 20050117097
    Abstract: In a normally black mode liquid crystal display, the liquid crystal display and the method prevents the light leakage arising from existing the step for adjusting the thickness of the liquid crystal layer between the reflective electrode and the transparent electrode and that high contrast displaying can be possible. The interval adjustment layer is formed between the first substrate that the reflective electrode is formed in the reflective region and the transparent electrode is formed in the transmissive region, and the second substrate that is fixed at predetermined interval from the first substrate. This interval adjustment layer is adjuster of the thickness of the liquid crystal layer in the reflective region on the second substrate, and the thickness of the liquid crystal layer in the reflective region is preferable to be set approximately the thickness of the liquid crystal layer of the transmissive region.
    Type: Application
    Filed: September 9, 2004
    Publication date: June 2, 2005
    Inventors: Koji Noguchi, Masaaki Kabe, Hidemasa Yamaguchi, Kazuyuki Endo, Shuichi Tatemori, Eiji Sakai
  • Publication number: 20040169801
    Abstract: A liquid crystal display device free from reduction of chromaticity and having a good image quality in comparison with a normally white mode semi-transmission liquid crystal display device even in a case of employing a normally black mode, able to secure a gap of a reflection portion able to suppress occurrence of defects, enabling a reduction of voltage, able to realize a reduction of power consumption, exhibiting a more natural color of the dark state of transmission, and able to improve the image quality, wherein a reflection portion and a transmission portion are provided in one pixel, a normally black mode which becomes a dark state when no voltage is supplied is employed, an orientation mode of the liquid crystals is a twist orientation, a polarization plate and one phase difference plate are provided on a viewing surface side, and a polarization plate is provided on a back surface side.
    Type: Application
    Filed: February 26, 2004
    Publication date: September 2, 2004
    Applicant: Sony Corporation
    Inventors: Masaaki Kabe, Youko Takada, Eiji Sakai, Makoto Jisaki, Hidemasa Yamaguchi, Shuichi Tatemori
  • Patent number: 6264897
    Abstract: An ozone generator is formed of at least one ozone-generating pipe, a feed gas chamber connected to one side of the ozone-generating pipe, and an ozonized gas chamber connected to the other side of the ozone-generating pipe. When an oxygen-containing feed gas is supplied to the ozone-generating pipe through the feed gas chamber, the feed gas is subjected to silent discharge in a gap between a ground electrode and a high-voltage electrode in the ozone-generating pipe to thereby allow the feed gas to change to an ozonized gas, which is then fed to the ozonized gas chamber. Gas-permeable flame-propagation-preventing members are arranged to sandwich the discharge gap therebetween to prevent outward propagation of ozonized gas decomposition flame in case the frame is induced to the ozonized gas by spark discharge in the ozone-generating pipe. The ozone generator can be used safely.
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: July 24, 2001
    Assignee: Fuji Electric Co., Ltd.
    Inventors: Hisamichi Ishioka, Kazuki Kai, Takaya Nishikawa, Eiji Sakai, Terushige Ogawa, Atsumi Miyake