Patents by Inventor Motohiko Sakamaki

Motohiko Sakamaki 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).

  • Patent number: 10120338
    Abstract: A holographic-stereogram-forming apparatus includes a laser beam source that generates a laser beam to be split into an object beam and a reference beam; a display that displays an original image corresponding to a substantially strip-shaped holographic element constituting a holographic stereogram containing parallax information in a horizontal direction; a diffusing unit provided on a light-emission side of the display and including optical elements having different thicknesses in a direction of light transmission, the optical elements being arranged in a matrix and each having a substantially rectangular shape with a vertical length being shorter than a horizontal length, the diffusing unit diffusing object beam more widely in the vertical direction than in the horizontal direction, the object beam to be diffused by the diffusing unit being generated by the display; and a condensing unit that condenses the object beam diffused by the diffusing unit on a hologram recording medium.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: November 6, 2018
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Yasuhiro Ogasawara, Jiro Minabe, Shigetoshi Nakamura, Takashi Kikuchi, Masahiro Igusa, Motohiko Sakamaki
  • Publication number: 20180009179
    Abstract: An additive manufacturing apparatus includes a table, an ejecting unit that faces the table and ejects photocurable droplets toward the table, a light-applying unit that applies light to and cures the droplets on the table, a moving unit that moves the table back and forth along with the light-applying unit and relative to the ejecting unit, and a controller that controls the ejecting unit, the light-applying unit, and the moving unit such that the ejecting unit ejects droplets toward the table while the table is moved relative to the ejecting unit; the light-applying unit applies, when a direction of relative movement of the table is changed, light to the droplets that have moved together with the table out of an area where the table faces the ejecting unit; and a three-dimensional object is formed as a stack of layers composed of the droplets that have been cured.
    Type: Application
    Filed: June 13, 2017
    Publication date: January 11, 2018
    Applicant: FUJI XEROX Co., Ltd.
    Inventors: Torahiko KANDA, Motohiko SAKAMAKI
  • Publication number: 20170090421
    Abstract: An image recording device includes a laser beam source that emits a laser beam, a splitting unit that splits the laser beam emitted from the laser beam source into two laser beams, a display device that displays images over a display area thereof divided into segments, a display controller that controls display of the display device so that images for forming a holographic stereogram are displayed on the segments of the display area and so that one of the laser beams is modulated by the images displayed on the display device to become object beams, an optical system that images the object beams on a hologram recording medium so that the object beams are superimposed one on top of another, and an irradiating unit that irradiates the hologram recording medium with, besides the object beams, the other laser beam split by the splitting unit as a reference beam.
    Type: Application
    Filed: February 25, 2016
    Publication date: March 30, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Jiro MINABE, Yasuhiro OGASAWARA, Shigetoshi NAKAMURA, Takashi KIKUCHI, Masahiro IGUSA, Motohiko SAKAMAKI
  • Publication number: 20170038729
    Abstract: A holographic-stereogram-forming apparatus includes a laser beam source that generates a laser beam to be split into an object beam and a reference beam; a display that displays an original image corresponding to a substantially strip-shaped holographic element constituting a holographic stereogram containing parallax information in a horizontal direction; a diffusing unit provided on a light-emission side of the display and including optical elements having different thicknesses in a direction of light transmission, the optical elements being arranged in a matrix and each having a substantially rectangular shape with a vertical length being shorter than a horizontal length, the diffusing unit diffusing object beam more widely in the vertical direction than in the horizontal direction, the object beam to be diffused by the diffusing unit being generated by the display; and a condensing unit that condenses the object beam diffused by the diffusing unit on a hologram recording medium.
    Type: Application
    Filed: January 27, 2016
    Publication date: February 9, 2017
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yasuhiro OGASAWARA, Jiro MINABE, Shigetoshi NAKAMURA, Takashi KIKUCHI, Masahiro IGUSA, Motohiko SAKAMAKI
  • Patent number: 8854723
    Abstract: A display medium includes a first substrate that is transparent to light, a second substrate, a spacing member, and a particle dispersion liquid. The second substrate is provided to be opposite to the first substrate and has a plurality of electrodes placed at a predetermined interval. The spacing member (i) is placed between the first and second substrates at another interval different from the predetermined interval of the electrodes, (ii) has a first end portion on a first substrate side of the spacing member and a second end portion on a second substrate side of the spacing member. The first end portion is transparent to light. The second end portion has different transparency from the first end portion to reduces a reflection of light incident through the first substrate onto a first substrate side of the spacing member.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: October 7, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Mamoru Fujita, Hideo Kobayashi, Masaaki Lawrence Araki, Takehito Hikichi, Motohiko Sakamaki, Akihide Kawamura
  • Patent number: 8630034
    Abstract: A display medium of the present invention includes first and second substrates, a spacing member and a particle dispersion liquid. The first substrate is transparent to light. The second substrate is opposite to the first substrate and has plural electrodes placed at an interval. The second substrate has a difference between reflectivity of the electrode portions and reflectivity of plural boundary portions between the electrodes with respect to light incident from the first substrate side. The difference is 12 percentage points or less. The spacing member is placed between the first and second substrates at another interval, is transparent to light, and keeps a gap between the first and second substrates. The particle dispersion liquid is filled between the first and second substrates, and includes particles moving in a direction of an electric field formed between the first and second substrates and a dispersion medium.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: January 14, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akihide Kawamura, Hideo Kobayashi, Masaaki Araki, Takehito Hikichi, Mamoru Fujita, Motohiko Sakamaki
  • Publication number: 20130242374
    Abstract: A display medium of the present invention includes first and second substrates, a spacing member and a particle dispersion liquid. The first substrate is transparent to light. The second substrate is opposite to the first substrate and has plural electrodes placed at an interval. The second substrate has a difference between reflectivity of the electrode portions and reflectivity of plural boundary portions between the electrodes with respect to light incident from the first substrate side. The difference is 12 percentage points or less. The spacing member is placed between the first and second substrates at another interval, is transparent to light, and keeps a gap between the first and second substrates. The particle dispersion liquid is filled between the first and second substrates, and includes particles moving in a direction of an electric field formed between the first and second substrates and a dispersion medium.
    Type: Application
    Filed: July 20, 2012
    Publication date: September 19, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akihide KAWAMURA, Hideo KOBAYASHI, Masaaki ARAKI, Takehito HIKICHI, Mamoru FUJITA, Motohiko SAKAMAKI
  • Publication number: 20130242375
    Abstract: A display medium includes a first substrate that is transparent to light, a second substrate, a spacing member, and a particle dispersion liquid. The second substrate is provided to be opposite to the first substrate and has a plurality of electrodes placed at a predetermined interval. The spacing member (i) is placed between the first and second substrates at another interval different from the predetermined interval of the electrodes, (ii) has a first end portion on a first substrate side of the spacing member and a second end portion on a second substrate side of the spacing member. The first end portion is transparent to light. The second end portion has different transparency from the first end portion to reduces a reflection of light incident through the first substrate onto a first substrate side of the spacing member.
    Type: Application
    Filed: September 12, 2012
    Publication date: September 19, 2013
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Mamoru FUJITA, Hideo KOBAYASHI, Masaaki ARAKI, Takehito HIKICHI, Motohiko SAKAMAKI, Akihide KAWAMURA
  • Patent number: 8526101
    Abstract: The present invention provides a method of manufacturing a display medium, including preparing a first substrate on which a gap retaining member that retains a gap between substrates is disposed in a protruded form; applying an adhesive to a top surface of the gap retaining member; disposing a particle dispersion liquid on an area surrounded by the first substrate and the gap retaining member; and adhering the first substrate and a second substrate together via the gap retaining member, by contacting the second substrate with the adhesive applied to the top surface of the gap retaining member and drying the solvent of the adhesive so as to adhere the second substrate to the top surface of the gap retaining member by the adhesive component of the adhesive. The display medium and a display apparatus including the display medium and an electrical field-generating unit are also provided.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: September 3, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Akihide Kawamura, Hideo Kobayashi, Takehito Hikichi, Masaaki Araki, Mamoru Fujita, Motohiko Sakamaki
  • Patent number: 8482516
    Abstract: An image display medium comprises a display member, a back substrate, spacers having a cell structure held between the substrates, and first particles and second particles, whose colors and charging polarities are different from one another, enclosed between the display member and back substrate. The display member includes a transparent support base, a transparent electrode formed thereon, a transparent dielectric layer formed on the transparent electrode, filters formed on the opposite side from the transparent electrodes side of the support base, and a protective layer formed thereon.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: July 9, 2013
    Assignee: Fuji Xerox Co., Ltd
    Inventors: Yoshiro Yamaguchi, Kiyoshi Shigehiro, Yoshinori Machida, Motohiko Sakamaki, Takeshi Matsunaga
  • Publication number: 20120249609
    Abstract: An image display medium comprises a display member, a back substrate, spacers having a cell structure held between the substrates, and first particles and second particles, whose colors and charging polarities are different from one another, enclosed between the display member and back substrate. The display member includes a transparent support base, a transparent electrode formed thereon, a transparent dielectric layer formed on the transparent electrode, filters formed on the opposite side from the transparent electrodes side of the support base, and a protective layer formed thereon.
    Type: Application
    Filed: June 12, 2012
    Publication date: October 4, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Yoshiro Yamaguchi, Kiyoshi Shigehiro, Yoshinori Machida, Motohiko Sakamaki, Takeshi Matsunaga
  • Patent number: 8228291
    Abstract: An image display medium comprises a display member, a back substrate, spacers having a cell structure held between the substrates, and first particles and second particles, whose colors and charging polarities are different from one another, enclosed between the display member and back substrate. The display member includes a transparent support base, a transparent electrode formed thereon, a transparent dielectric layer formed on the transparent electrode, filters formed on the opposite side from the transparent electrodes side of the support base, and a protective layer formed thereon.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: July 24, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshiro Yamaguchi, Kiyoshi Shigehiro, Yoshinori Machida, Motohiko Sakamaki, Takeshi Matsunaga
  • Patent number: 8179484
    Abstract: The present invention provides a display medium which prevents a decrease in reflectance during storage at high temperatures, and a writing apparatus using the display medium. A photoconductive layer 24, a selective light transmission layer 22, and a liquid crystal layer 20 are laminated between substrates 12 and 14, which have electrodes 16 and 18, respectively, to form a display medium 10. The selective light transmission layer 22 as a color layer is composed of a deionized material. The ion concentration of the selective light transmission layer 22 is controlled to be within a predetermined range.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: May 15, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hideo Kobayashi, Masaaki Araki, Takehito Hikichi, Takeo Kakinuma, Naoki Hiji, Chikara Manabe, Motohiko Sakamaki, Hiroe Okuyama, Shigeru Yamamoto
  • Publication number: 20120038970
    Abstract: The present invention provides a method of manufacturing a display medium, including: preparing a first substrate on which a gap retaining member that retains a gap between substrates is disposed in a protruded form; applying an adhesive to a top surface of the gap retaining member; disposing a particle dispersion liquid on an area surrounded by the first substrate and the gap retaining member; and adhering the first substrate and a second substrate together via the gap retaining member, by contacting the second substrate with the adhesive applied to the top surface of the gap retaining member and drying the solvent of the adhesive so as to adhere the second substrate to the top surface of the gap retaining member by the adhesive component of the adhesive.
    Type: Application
    Filed: July 8, 2011
    Publication date: February 16, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Akihide KAWAMURA, Hideo KOBAYASHI, Takehito HIKICHI, Masaaki ARAKI, Mamoru FUJITA, Motohiko SAKAMAKI
  • Patent number: 8013971
    Abstract: A display medium includes: a pair of substrates that have light transmittance; electrode members that are respectively formed on the opposing surfaces of the substrates, have light transmittance, and are capable of carrying an electric current; a display member that is interposed between the electrode members and displays display information when the electric current is supplied; a terminal portion provided at one electrode member; a reinforcing portion that has electrical conductivity and is joined to the terminal portion; and a mounted electrode that has electrical conductivity and is joined to the terminal portion by a joining material that has, after curing, a cohesive force larger than that of the reinforcing portion. The area of a reinforcing joining region of the terminal portion to which the reinforcing portion is joined is smaller than the area of a mounted joining region of the terminal portion to which the joining material is joined.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: September 6, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Motohiko Sakamaki, Masaaki Araki, Takehito Hikichi, Koichi Haga, Mamoru Fujita
  • Patent number: 7885457
    Abstract: An image processing device is provided for processing image data in order to display an image at an image display medium which is capable of displaying white, black, and colors at individual pixels, which are structured by pluralities of sub-pixels. The judgment component acquires the image data and judges whether there is a chromatic color or a non-chromatic color at each pixel. When a pixel is judged to be non-chromatic, the selection component selects a pre-specified black-and-white sub-pixel set in accordance with a gray level of the non-chromatic color. When a pixel is judged to be chromatic, the conversion component converts color data to a sub-pixel set of black and the color in accordance with a pre-specified condition. Of results of conversion, the replacement component replaces a pre-specified sub-pixel set of colors, in an individual pixel or in a pre-specified sub-pixel group, with a pre-specified black-and-white sub-pixel set.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: February 8, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Atsushi Hirano, Yoshiro Yamaguchi, Yasufumi Suwabe, Yoshinori Machida, Motohiko Sakamaki, Takeshi Matsunaga, Kiyoshi Shigehiro
  • Patent number: 7859513
    Abstract: An image display device is provided. The image display device has: an image display medium where charged particle groups are sealed between a pair of substrates at least one of which has translucency and which are opposed to each other with a space therebetween, and display density is changed by transfer of the charged particle groups between the pair of substrates according to an electric field formed by a voltage applied between the substrates; a temperature measuring unit that measures a temperature of the image display medium; a voltage applying unit that applies, between the substrates, a driving voltage according to the temperature of the image display medium measured by the temperature measuring unit, based on a predetermined voltage applying condition corresponding to the temperature of the image display medium, in order to display an image with predetermined display density on the image display medium.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: December 28, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshinori Machida, Atsushi Hirano, Takeshi Matsunaga, Yasufumi Suwabe, Yoshiro Yamaguchi, Motohiko Sakamaki, Kiyoshi Shigehiro
  • Publication number: 20100225837
    Abstract: The invention provides a display medium including: a first electrode; a second electrode; a liquid crystal layer provided between the first electrode and the second electrode; a photoconductive layer provided between the second electrode and the liquid crystal layer, the photoconductive layer absorbing light of a predetermined wavelength used for writing, and thereby exhibiting an electrical characteristic corresponding to the intensity distribution of the light used for writing; a first light absorption layer provided between the liquid crystal layer and the photoconductive layer, the first light absorption layer absorbing light transmitted through the liquid crystal layer; a second light absorption layer provided at the side of the second electrode not facing the photoconductive layer, the second light absorption layer allowing transmission of the light used for writing and having an absorbance of 1 or more with respect to light of any wavelength in a range of from 300 nm to 550 nm.
    Type: Application
    Filed: December 17, 2009
    Publication date: September 9, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Mieko SEKI, Yasuhiro YAMAGUCHI, Tomozumi UESAKA, Hideo KOBAYASHI, Hiroe OKUYAMA, Masaaki ARAKI, Motohiko SAKAMAKI
  • Publication number: 20100225866
    Abstract: A display medium includes: a pair of substrates that have light transmittance; electrode members that are respectively formed on the opposing surfaces of the substrates, have light transmittance, and are capable of carrying an electric current; a display member that is interposed between the electrode members and displays display information when the electric current is supplied; a terminal portion provided at one electrode member; a reinforcing portion that has electrical conductivity and is joined to the terminal portion; and a mounted electrode that has electrical conductivity and is joined to the terminal portion by a joining material that has, after curing, a cohesive force larger than that of the reinforcing portion. The area of a reinforcing joining region of the terminal portion to which the reinforcing portion is joined is smaller than the area of a mounted joining region of the terminal portion to which the joining material is joined.
    Type: Application
    Filed: August 25, 2009
    Publication date: September 9, 2010
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Motohiko SAKAMAKI, Masaaki ARAKI, Takehito HIKICHI, Koichi HAGA, Mamoru FUJITA
  • Patent number: 7746319
    Abstract: The present invention provides an image display device capable of freely changing a scanning direction of an image display medium including support plates, first and second electrode groups provided at the plates and colored particles provided between the plates, including first and second electrode-driving components which receive electrode-designation signals and apply voltages to the designated electrodes in the first and second electrode groups, and which can apply voltage to plural electrodes simultaneously, a line-image-data generation component which generates line-image-data for line images to be displayed along scan electrodes in accordance with a scanning direction, and a signal-output-destination-switching component, in accordance with the scanning direction, which outputs a first electrode designation signal for designating a scan electrode of a line image and a second electrode designation signal for designating an electrode to be driven for displaying the line image, to the first electrode drivi
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: June 29, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshiro Yamaguchi, Yasufumi Suwabe, Yoshinori Machida, Motohiko Sakamaki, Takeshi Matsunaga, Atsushi Hirano, Kiyoshi Shigehiro