Patents by Inventor Mitsuru Naruse

Mitsuru Naruse 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: 20190241734
    Abstract: A powder for solid freeform fabrication includes a first resin particle and a second resin particle, wherein MFR2 is greater than MFR1 and a ratio of MFR2 to MFR1 is from 2 to 5, where MFR1 represents a melt mass-flow rate (MFR) of the first resin particle and MFR2 represents a melt mass-flow rate of the second resin particle.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 8, 2019
    Inventors: Mitsuru Naruse, Akira Saito, Hitoshi Iwatsuki, Yasuyuki Yamashita, Toshiyuki Mutoh, Yasutomo Aman, Kiichi Kamoda, Sohichiroh Iida, Shinzo Higuchi, Toshiyuki Iseki
  • Publication number: 20190179068
    Abstract: A method for laser-processing a polarizing plate includes forming a region in which polarization characteristics are eliminated at a portion of a polarizing film by irradiation with laser light, using a first protection film bonded to one surface of the polarizing film with a first bonding layer being interposed therebetween, and a second protection film bonded to the other surface of the polarizing film with a second bonding layer being interposed therebetween, and scanning ultrashort pulse laser light from above the first protection film so that the region is irradiated with the light to remove an inner portion from the first protection film to the second bonding layer.
    Type: Application
    Filed: July 31, 2017
    Publication date: June 13, 2019
    Inventor: Mitsuru NARUSE
  • Patent number: 10293555
    Abstract: Provided is a liquid material for forming a three-dimensional object. The liquid material is adapted to harden a powder material for forming a three-dimensional object containing an organic material. The liquid material contains a solvent and a cross-linking agent. A dynamic contact angle of the liquid material over a film made of the organic material is from 20° to 80°.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: May 21, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Mariko Kojima, Yoshihiro Norikane, Keiko Osaka, Hiroshi Iwata, Mitsuru Naruse, Nozomu Tamoto
  • Patent number: 10295727
    Abstract: A display device includes a polarizing layer having a polarizing function for reflecting or absorbing light polarized in a stretching direction of a pigment, a first display panel in which the polarizing function is disabled in a first region, a second display panel in which the polarizing function is disabled in a second region, and a light source that emits an illumination light having a polarization direction along the stretching direction or a direction perpendicular to the stretching direction. The first display panel and the second display panel are stacked together to form a display unit. Only the first region is displayed on the display unit by emitting illumination light having a polarization direction along the stretching direction of the first display panel. Only the second region is displayed on the display unit by emitting illumination light having a polarization direction along the stretching direction of the second display panel.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: May 21, 2019
    Assignee: KABUSHIKI KAISHA TOKAI RIKA DENKI SEISAKUSHO
    Inventors: Mitsuru Naruse, Hiroshi Yoshida
  • Publication number: 20190134853
    Abstract: A particle for solid freeform fabrication having a columnar form has end surfaces and a side surface, wherein one of the end surfaces partially covers the side surface.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 9, 2019
    Inventors: Hitoshi IWATSUKI, Yasuyuki YAMASHITA, Kiichi KAMODA, Toshiyuki MUTOH, Yasutomo AMAN, Toshiyuki ISEKI, Mitsuru NARUSE, Akira SAITO, Shinzo HIGUCHI, Sohichiroh IIDA
  • Publication number: 20190086603
    Abstract: A display device includes a polarizing layer having a polarizing function for reflecting or absorbing light polarized in a stretching direction of a pigment, a first display panel in which the polarizing function is disabled in a first region, a second display panel in which the polarizing function is disabled in a second region, and a light source that emits an illumination light having a polarization direction along the stretching direction or a direction perpendicular to the stretching direction. The first display panel and the second display panel are stacked together to form a display unit. Only the first region is displayed on the display unit by emitting illumination light having a polarization direction along the stretching direction of the first display panel. Only the second region is displayed on the display unit by emitting illumination light having a polarization direction along the stretching direction of the second display panel.
    Type: Application
    Filed: March 30, 2017
    Publication date: March 21, 2019
    Inventors: Mitsuru NARUSE, Hiroshi YOSHIDA
  • Publication number: 20190001549
    Abstract: In a groove-formed body, recesses and protrusions are formed in a resin plate by irradiating a laser. Each of four recesses extend from an intersection point thereof. When forming each of the recesses in the resin plate, a portion at the intersection point of the recesses is an irradiation stop position of the laser, and an amount of heat generated by the laser on the resin plate is decreased. This enables a protrusion to be suppressed from being formed on either side of the intersection point of the recesses, and enables a protrusion to be suppressed from being disposed between the portion of the recesses at the intersection point, and a portion other than at the intersection point.
    Type: Application
    Filed: September 7, 2018
    Publication date: January 3, 2019
    Inventor: Mitsuru NARUSE
  • Publication number: 20180306408
    Abstract: A display switching device includes a light source emitting light having a first polarization direction and light having a second polarization direction different from the first polarization direction, a first polarizing plate having a first display region configured to transmit light in the first polarization direction and display a first display mark, and a second polarizing plate having a second display region configured to transmit light in the second polarization direction and display a second display mark. The second polarizing plate is arranged such that the first display region at least partially overlaps with the second display region. At least a part of one of the first display region and the second display region includes a mixed part in which a polarization part with a polarizing function and a non-polarization part without any polarizing function are mixed.
    Type: Application
    Filed: April 3, 2018
    Publication date: October 25, 2018
    Inventors: Masato KOZUKA, Mitsuru NARUSE
  • Publication number: 20180273756
    Abstract: Provided is a water-disintegrable resin composition including at least a water-soluble resin (A) and an acidic substance (B).
    Type: Application
    Filed: May 29, 2018
    Publication date: September 27, 2018
    Inventors: Akira SAITO, Yasuo SUZUKI, Mitsuru NARUSE, Nozomu TAMOTO, Shinzo HIGUCHI
  • Publication number: 20180215917
    Abstract: A resin composition for solid freeform fabrication includes one or more thermoplastic resins containing a liquid crystal resin having a content rate of from 0.5 to 40 percent by mass to the one or more thermoplastic resins.
    Type: Application
    Filed: January 22, 2018
    Publication date: August 2, 2018
    Inventor: Mitsuru Naruse
  • Patent number: 10030154
    Abstract: A powder material for three-dimensional modeling includes a base particle and a resin including a first water soluble resin and a second water soluble resin, wherein a first aqueous solution of the first water soluble resin having a concentration of two percent by mass has a thermally reversible sol-gel phase transition and is gelated at temperatures higher than a first phase transition temperature of the first aqueous solution.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: July 24, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsuru Naruse, Yasuo Suzuki, Nozomu Tamoto, Yasuyuki Yamashita, Hitoshi Iwatsuki, Kazumi Ohtaki
  • Publication number: 20180093351
    Abstract: In a groove-formed body, a recess and protrusions are formed on a resin plate by irradiation with a laser. When forming the recess and the protrusions on the resin plate, the laser is irradiated onto the resin plate plural times. Irradiation of the laser onto the resin plate is thus temporarily paused to cool the resin plate, enabling the portion of the resin plate irradiated by the laser to be suppressed from igniting and enabling a depth dimension of the recess and a height dimension of the protrusions to be made larger.
    Type: Application
    Filed: February 18, 2016
    Publication date: April 5, 2018
    Inventors: Satoshi ITO, Takashi YUURA, Mitsuru NARUSE
  • Publication number: 20180043609
    Abstract: In a groove-formed body, recesses and protrusions are formed in a resin plate by irradiating a laser. Each of four recesses extend from an intersection point thereof. When forming each of the recesses in the resin plate, a portion at the intersection point of the recesses is an irradiation stop position of the laser, and an amount of heat generated by the laser on the resin plate is decreased. This enables a protrusion to be suppressed from being formed on either side of the intersection point of the recesses, and enables a protrusion to be suppressed from being disposed between the portion of the recesses at the intersection point, and a portion other than at the intersection point.
    Type: Application
    Filed: February 18, 2016
    Publication date: February 15, 2018
    Inventor: Mitsuru NARUSE
  • Patent number: 9873228
    Abstract: A powder material for three-dimensional modeling includes a base particle and a resin covering the base particle, wherein the resin has a first absorption peak in the range of from 1,141 cm?1 to 1,145 cm?1 and a second absorption peak in the range of from 1,089 cm?1 to 1,093 cm?1 in an infrared absorption spectrum and the intensity ratio of the first absorption peak to the second absorption peak is from 0.40 to 0.70.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: January 23, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuo Suzuki, Mitsuru Naruse, Hitoshi Iwatsuki, Nozomu Tamoto, Kazumi Ohtaki, Yasuyuki Yamashita
  • Patent number: 9782935
    Abstract: A powder material for three-dimensional modeling includes a base particle and a coverage film including an organic material. The coverage film covers the base particle. The powder material is used for three dimensional modeling and when the coverage film is dissolved in a solvent to prepare a solution and the solution is formed into a coated film on a smooth surface, the coated film has a wetting tension of from 22 mN/m to 28 mN/m.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: October 10, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasuyuki Yamashita, Yasuo Suzuki, Mitsuru Naruse, Nozomu Tamoto, Shigenori Yaguchi, Hitoshi Iwatsuki, Kazumi Ohtaki
  • Patent number: 9752037
    Abstract: An inkjet recording ink, including: water; a water-soluble organic solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer contains a structural unit represented by the following General Formula (1) and a structural unit represented by the following General Formula (2): where R1 denotes a hydrogen atom or a methyl group; M+ denotes an alkali metal ion, an organic amine ion, or a hydrogen ion; half or more of M+ in the copolymer is the alkali metal ion or the organic amine ion, the remainder of M+ is the hydrogen ion; n and m each denote an integer of 0 to 6, provided that both of n and m are not 0; and a block of (C2H4O) and a block of (C3H6O) may be exchanged with each other, where R2 denotes a hydrogen atom or a methyl group.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: September 5, 2017
    Assignees: Ricoh Company, Ltd., GOO CHEMICAL CO., LTD.
    Inventors: Minoru Hakiri, Mitsuru Naruse, Masayasu Nonogaki, Keita Katoh, Akihiko Matsuyama, Kazukiyo Nagai, Yuusuke Koizuka, Masato Matsumura, Takuya Furuta
  • Publication number: 20170225404
    Abstract: A solid freeform fabrication material having a dissolution starting point in a pH range of 7.5-10.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 10, 2017
    Inventors: Mitsuru NARUSE, Shinzo HIGUCHI, Akira SAITO, Yasuo SUZUKI, Nozomu TAMOTO
  • Publication number: 20170217087
    Abstract: A solid freeform fabrication material includes a water-soluble core material and a water-insoluble coating material formed on the surface of the water-soluble core material.
    Type: Application
    Filed: January 23, 2017
    Publication date: August 3, 2017
    Inventors: Nozomu TAMOTO, Yasuo SUZUKI, Akira SAITO, Mitsuru NARUSE, Shinzo HIGUCHI
  • Patent number: 9708502
    Abstract: A powder for 3D modeling includes a base particle and a resin having a functional group represented by the following Chemical formula 1, where A1 represents O or NH and R1, R2, and R3 each, independently represent CH3, C2H5, C3H7, or C4H9. The base particle is covered with the resin.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: July 18, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsuru Naruse, Nozomu Tamoto, Yasuo Suzuki, Hitoshi Iwatsuki, Yasuyuki Yamashita, Kazumi Ohtaki
  • Patent number: 9688871
    Abstract: An inkjet recording ink, including: water; a water-soluble solvent; a pigment; and a phosphate group-containing copolymer, wherein the phosphate group-containing copolymer includes a structural unit represented by the following general formula (1) and a structural unit represented by the following general formula (2): wherein, in the general formula (1), R1 represents either of a hydrogen atom and a methyl group; and M+ represents any of an alkali metal ion, an organic amine ion and a hydrogen ion, one-half or more of the M+ in the copolymer is an alkali metal ion or an organic amine, and the remainder is a hydrogen ion; wherein, in the general formula (2), R2 represents either of a hydrogen atom and a methyl group.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: June 27, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Masayasu Nonogaki, Keita Katoh, Minoru Hakiri, Mitsuru Naruse, Akihiko Matsuyama, Kazukiyo Nagai, Yuusuke Koizuka, Nobuyuki Sakamoto, Yosuke Matsuoka, Masatomo Takahashi