Patents by Inventor Hirotaka Yamazaki

Hirotaka Yamazaki 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: 10352196
    Abstract: To remove water accumulated in a cooling air system while preventing performance loss of a gas turbine, the gas turbine is provided with a cooling air system that connects an intermediate stage or the exit of a compressor to a turbine to supply compressed air bled from the compressor to the turbine, a TCA cooler, i.e., a heat exchanger, that cools the compressed air on the route of the cooling air system, and a drain water discharge valve, i.e., a first drain water discharge valve and a second drain water discharge valve disposed downstream of the compressed air of the TCA cooler, wherein at least for a predetermined period of time after a rated speed of the gas turbine at start up has been reached, the drain water discharge valve is set to an open state, and thereafter, the drain water discharge valve is set to a closed state.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: July 16, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Shinichi Yamazaki, Hirotaka Nakasako
  • Patent number: 8648022
    Abstract: The present invention proposes a lubricating oil for refrigerators comprising, as the base oil, a polyester-based derivative or a polyvinyl ether derivative and a polycarbonate-based oxygenated compound; a polyoxyalkylene glycol derivative; or a polyester-based derivative or a polyvinyl ether derivative and a polyoxyalkylene glycol derivative. The lubricating oil exhibits excellent miscibility with a refrigerant having one carbon atom and no chlorine atoms and, in particular, with difluoromethane and provides a hydraulic fluid composition exhibiting excellent antiwear, lubricity and stability.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: February 11, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kenji Mogami, Hirotaka Yamazaki, Naoko Tazaki
  • Patent number: 8582198
    Abstract: In an information display system panel, color filters each having respective colors are arranged to an outer surface of a transparent substrate at an observation side having a refractive index n and a thickness d, in such a manner that an overlap area between the color filter and the pixel is set in a range of 50%-100% with respect to an area of the pixel, so that a portion between adjacent color filters having different colors, which is perpendicular to a tilt visual direction, is spaced at either one of an upper and lower sides and a right and left sides of the color filter; and a relation between a visual filed displacement I indicated by following formula (1), which is generated when the image displayed by the display media is viewed as a reflected light refracted at 45° with respect to a surface of the color filter, and LS and DS denoting a pixel pitch and a pixel space along a visual direction respectively, satisfies I?0.5×(DS+LS); I=d×[sin2 ?/(n2?sin2 ?)]1/2 ?=45°??formula (1).
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: November 12, 2013
    Assignee: Bridgestone Corporation
    Inventors: Mitsuhiro Nishida, Shingo Ohno, Hirotaka Yamazaki
  • Publication number: 20120127561
    Abstract: In an information display system panel, color filters each having respective colors are arranged to an outer surface of a transparent substrate at an observation side having a refractive index n and a thickness d, in such a manner that an overlap area between the color filter and the pixel is set in a range of 50%-100% with respect to an area of the pixel, so that a portion between adjacent color filters having different colors, which is perpendicular to a tilt visual direction, is spaced at either one of an upper and lower sides and a right and left sides of the color filter; and a relation between a visual filed displacement I indicated by following formula (1), which is generated when the image displayed by the display media is viewed as a reflected light refracted at 45° with respect to a surface of the color filter, and LS and DS denoting a pixel pitch and a pixel space along a visual direction respectively, satisfies I?0.5×(DS+LS); I=d×[sin2 ?/(n2?sin2 ?)]1/2 ?=45°??formula (1).
    Type: Application
    Filed: June 9, 2010
    Publication date: May 24, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Mitsuhiro Nishida, Shingo Ohno, Hirotaka Yamazaki
  • Publication number: 20110069374
    Abstract: An electronic paper includes two flexible substrates 1, 2 opposing each other, at least one of which is transparent; a partition wall 4 for sectioning a space between the two flexible substrates into a plurality of cells; and, a display medium consisting of a particle group and sealed in the plurality of cells, thereby to display information by electrically driving the display media, in which the partition wall is formed by a substrate-gap maintaining member 4-1 continuously disposed between the two flexible substrates, for securing a gap between the substrates, and, a sectioning member 4-2 discontinuously disposed between the two flexible substrates with a predetermined space. With this configuration, it is possible to obtain a panel structure body having flexibility, and provide an electronic paper having a uniform gap between the substrates and sufficient connecting strength.
    Type: Application
    Filed: May 28, 2009
    Publication date: March 24, 2011
    Inventor: Hirotaka Yamazaki
  • Patent number: 7835064
    Abstract: In a method of manufacturing an information display panel, in which at least one group of display media having light reflectance and charge characteristics, constituted by at least one group of particles, are sealed in a cell formed by partition walls between opposed two substrates, at least one substrate being transparent, and, in which the display media, to which an electrostatic field is applied, are made to move so as to display information such as an image, a display media filling process for filling the display media in the cell includes: a display media charging and supporting process for supporting charged display media; a display media aligning process for aligning the supported display media corresponding to an electrostatic latent image; and a display media transferring and filling process for transferring and filling the aligned display media in the cell.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: November 16, 2010
    Assignee: Bridgestone Corporation
    Inventors: Yoshitomo Masuda, Taichi Kobayashi, Hirotaka Yamazaki
  • Patent number: 7646358
    Abstract: In an image display device which has an image display panel, in which two or more groups of particles or liquid powders having different colors and different charge characteristics are sealed between opposed two substrates, at least one of two substrates being transparent, and, in which the particles or the liquid powders, to which an electrostatic field produced by a pair of electrodes provided on one substrate or both substrates respectively is applied, are made to move so as to display an image, a chip for transmitting a drive signal to the image display panel is arranged in the substrate (first aspect of the invention), or, the two substrates are constructed by a transparent substrate and the pair of electrodes are constructed by a transparent electrode (second aspect of the invention).
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: January 12, 2010
    Assignee: Bridgestone Corporation
    Inventors: Reiji Hattori, Itsuo Tanuma, Yoshitomo Masuda, Norio Nihei, Ryou Sakurai, Hajime Tamura, Hirotaka Yamazaki
  • Publication number: 20090273826
    Abstract: In a method of manufacturing an information display panel, in which at least one group of display media having light reflectance and charge characteristics, constituted by at least one group of particles, are sealed in a cell formed by partition walls between opposed two substrates, at least one substrate being transparent, and, in which the display media, to which an electrostatic field is applied, are made to move so as to display information such as an image, a display media filling process for filling the display media in the cell includes: a display media charging and supporting process for supporting charged display media; a display media aligning process for aligning the supported display media corresponding to an electrostatic latent image; and a display media transferring and filling process for transferring and filling the aligned display media in the cell.
    Type: Application
    Filed: April 25, 2006
    Publication date: November 5, 2009
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yoshitomo Masuda, Taichi Kobayashi, Hirotaka Yamazaki
  • Publication number: 20090186788
    Abstract: The present invention proposes a lubricating oil for refrigerators comprising, as the base oil, a polyester-based derivative or a polyvinyl ether derivative and a polycarbonate-based oxygenated compound; a polyoxyalkylene glycol derivative; or a polyester-based derivative or a polyvinyl ether derivative and a polyoxyalkylene glycol derivative. The lubricating oil exhibits excellent miscibility with a refrigerant having one carbon atom and no chlorine atoms and, in particular, with difluoromethane and provides a hydraulic fluid composition exhibiting excellent antiwear, lubricity and stability.
    Type: Application
    Filed: March 2, 2009
    Publication date: July 23, 2009
    Applicant: IDEMITSU KOSAN CO., LTD
    Inventors: Toshinori Tazaki, Naoko Tazaki, Kenji Mogami, Hirotaka Yamazaki
  • Patent number: 7554716
    Abstract: In a first aspect of the invention, an information display panel, in which at least one group of display media having optical reflectance and charge characteristics, formed by at least one group of particles, are scaled in a cell (corresponding to one display unit) formed by partition walls between two substrates, at least one substrate being transparent, and, in which the display media, to which an electrostatic field is applied, are made to move so as to display information such as an image, includes (1) a color filter formed by arranging filters having a predetermined numbers of colors on a transparent substrate at a display side so as to perform a color display, and a black layer arranged between the partition walls and the transparent substrate.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: June 30, 2009
    Assignee: Bridgestone Corporation
    Inventors: Shinichi Kita, Hajime Tamura, Takanori Shoji, Hirotaka Yamazaki
  • Patent number: 7495819
    Abstract: In the case of filling and setting the liquid powders or the particles in a plurality of cells formed by the partition walls on the substrate, the method includes the steps of: setting a nozzle at an upper portion of a container; setting the substrate, on which the partition walls are arranged, at a lower portion of the container; scattering the liquid powders or the particles dispersed in a gas from the nozzle arranged at the upper portion in the container; and filling the liquid powders or the particles in the cells on the substrate arranged at the lower portion in the container.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: February 24, 2009
    Assignee: Bridgestone Corporation
    Inventors: Ryou Sakurai, Kazuyoshi Akuzawa, Hirotaka Yamazaki, Hiroyuki Anzai, Hajime Kitano, Kazuya Murata, Gaku Yakushiji, Norihiko Kaga, Taichi Kobayashi, Toshiaki Arai, Yoshitomo Masuda
  • Patent number: 7483202
    Abstract: In an image display panel: in which at least one group of particles or liquid particles is sealed between opposed substrates, at least one of two substrates being transparent; in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image; and in which partition walls arranged between the substrates according to need, use is made of the substrate in which at least a surface, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (first aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (second aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is coated by a material having a small charge decay property (third aspect), a universal hardness of a binder resin used for a material constituting the partition wall is not less than 400 N/mm2, whi
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: January 27, 2009
    Assignee: Bridgestone Corporation
    Inventors: Ryo Sakurai, Hidetoshi Hiraoka, Taichi Kobayashi, Hirotaka Yamazaki, Hajime Kitano
  • Publication number: 20080174854
    Abstract: In an image display panel: in which at least one group of particles or liquid particles is sealed between opposed substrates, at least one of two substrates being transparent; in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image; and in which partition walls arranged between the substrates according to need, use is made of the substrate in which at least a surface, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (first aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (second aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is coated by a material having a small charge decay property (third aspect), a universal hardness of a binder resin used for a material constituting the partition wall is not less than 400 N/mm2, whi
    Type: Application
    Filed: March 21, 2008
    Publication date: July 24, 2008
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Ryo SAKURAI, Hidetoshi Hiraoka, Taichi Kobayashi, Hirotaka Yamazaki, Hajime Kitano
  • Patent number: 7369299
    Abstract: In an image display panel: in which at least one group of particles or liquid particles is sealed between opposed substrates, at least one of two substrates being transparent; in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image; and in which partition walls arranged between the substrates according to need, use is made of the substrate in which at least a surface, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (first aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (second aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is coated by a material having a small charge decay property (third aspect), a universal hardness of a binder resin used for a material constituting the partition wall is not less than 400 N/mm2, whi
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: May 6, 2008
    Assignee: Bridgestone Corporation
    Inventors: Ryo Sakurai, Hidetoshi Hiraoka, Taichi Kobayashi, Hirotaka Yamazaki, Hajime Kitano
  • Patent number: 7236291
    Abstract: An image display device, in which image display media are sealed between opposed substrates, at least one of two substrates being transparent, and in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image. A construction of particles used as the image display media is improved (the first, second, fourth, fifth, sixth, eighth and ninth aspects of the invention), and a material of the particles used as the image display media is improved (the third, seventh and tenth aspects of the invention). Whiteness of the particles and a liquid powder using the particles is improved, particle agglutination is prevented, and the charge property is controlled. Moreover, durability is improved such that a contrast of the image display during a repetition display is not decreased. As a result, an excellent image display can be achieved.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: June 26, 2007
    Assignee: Bridgestone Corporation
    Inventors: Norihiko Kaga, Gaku Yakushiji, Hare Tazawa, Maki Masutani, Taichi Kobayashi, Toshiaki Arai, Kazuya Murata, Ryo Sakurai, Yoneji Kobayashi, Hajime Tamura, Hiroyuki Anzai, Hirotaka Yamazaki, Yoichi Nishimuro, Kunio Machida
  • Publication number: 20070120815
    Abstract: In a first aspect of the invention, an information display panel, in which at least one group of display media having optical reflectance and charge characteristics, formed by at least one group of particles, are scaled in a cell (corresponding to one display unit) formed by partition walls between two substrates, at least one substrate being transparent, and, in which the display media, to which an electrostatic field is applied, are made to move so as to display information such as an image, includes (1) a color filter formed by arranging filters having a predetermined numbers of colors on a transparent substrate at a display side so as to perform a color display, and a black layer arranged between the partition walls and the transparent substrate.
    Type: Application
    Filed: November 9, 2006
    Publication date: May 31, 2007
    Inventors: Shinichi Kita, Hajime Tamura, Takanori Shoji, Hirotaka Yamazaki
  • Publication number: 20060263927
    Abstract: In an image display panel: in which at least one group of particles or liquid particles is sealed between opposed substrates, at least one of two substrates being transparent; in which the particles or the liquid powders, to which an electrostatic field is applied, are made to move so as to display an image; and in which partition walls arranged between the substrates according to need, use is made of the substrate in which at least a surface, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (first aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is subjected to a hydrophobic treatment (second aspect), at least a surface of the partition wall, to which the particles or the liquid powders are contacted, is coated by a material having a small charge decay property (third aspect), a universal hardness of a binder resin used for a material constituting the partition wall is not less than 400 N/mm2, whi
    Type: Application
    Filed: February 25, 2004
    Publication date: November 23, 2006
    Inventors: Ryo Sakurai, Hidetoshi Hiraoka, Taichi Kobayashi, Hirotaka Yamazaki, Hajime Kitano
  • Publication number: 20060231401
    Abstract: In the case of filling and setting the liquid powders or the particles in a plurality of cells formed by the partition walls on the substrate, the method includes the steps of: setting a nozzle at an upper portion of a container; setting the substrate, on which the partition walls are arranged, at a lower portion of the container; scattering the liquid powders or the particles dispersed in a gas from the nozzle arranged at the upper portion in the container; and filling the liquid powders or the particles in the cells on the substrate arranged at the lower portion in the container.
    Type: Application
    Filed: December 17, 2003
    Publication date: October 19, 2006
    Inventors: Ryou Sakurai, Kazuyoshi Akuzawa, Hirotaka Yamazaki, Hiroyuki Anzai, Hajime Kitano, Kazuya Murata, Gaku Yakushiji, Norihiko Kaga, Taichi Kobayashi, Toshiaki Arai, Yoshitomo Masuda
  • Publication number: 20060209008
    Abstract: An image display device according to first to third aspects of the invention has an image display panel, in which two or more groups of particles having different colors and different charge characteristics are sealed between two substrates, at least one of two substrates being transparent, and, in which the particles, to which an electrostatic field produced by a pair of electrodes provided on respective substrates is applied, are made to fly and move so as to display an image. In the first aspect of the invention, micro-concave portions and/or micro-convex portions are provided to a part of or an overall of a surface of the electrode (first embodiment) or micro-cutout holes are provided to a part of or an overall of a surface of the electrode (second embodiment).
    Type: Application
    Filed: April 17, 2003
    Publication date: September 21, 2006
    Applicant: Bridgestone Corporation
    Inventors: Norio Nihei, Hajime Kitano, Koji Takagi, Gaku Yakushiji, Kazuya Murata, Ryou Sakurai, Yoshinori Iwabuchi, Hirotaka Yamazaki, Yoshitomo Masuda, Reiji Hattori
  • Publication number: 20060146394
    Abstract: In the image display device, in which the image display media are sealed between opposed substrates, at least one of two substrates being transparent, and in which the image display media, to which an electrostatic field is applied, are made to move so as to display an image, a construction of the particles utilizing as the image display media is improved (the first, second, fourth, fifth, sixth, eighth and ninth aspects of the invention), and, a material of the particles utilizing as the image display media is improved (the third, seventh and tenth aspects of the invention). Therefore, the whiteness of the particles and the liquid powder using the particles can be improved, and it is possible to prevent the particle agglutination and to control the charge property. Moreover, in the image display panel in which the particles and the liquid powder are used as the image display media, it is possible to obtain a durability such that a contrast of the image display during a repetition display is not decreased.
    Type: Application
    Filed: April 2, 2004
    Publication date: July 6, 2006
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Norihiko Kaga, Gaku Yakushiji, Hare Tazawa, Maki Masutani, Taichi Kobayashi, Toshiaki Arai, Kazuya Murata, Ryo Sakurai, Yoneji Kobayashi, Hajime Tamura, Hiroyuki Anzai, Hirotaka Yamazaki, Yoichi Nishimuro, Kunio Machida