Patents by Inventor Hiroshi Oshima

Hiroshi Oshima 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: 9376571
    Abstract: The present invention is to provide a colorant dispersion liquid which is able to form a high-luminance coating film having better heat resistance compared to the case of using conventional dyes. Disclosed is a colorant dispersion liquid containing (A) a colorant, (B) a dispersant, and (C) a solvent, wherein the colorant (A) contains a color material represented by the following general formula (I) and a xanthene-based dye; a solubility of the color material in the solvent (C) and that of the xanthene-based dye in the solvent (C) are each 0.2 (g/100 g solvent) or less at 23° C.; and the color material and the xanthene-based dye are dispersed in the solvent (C) by the dispersant (B): (The symbols in the formula are as described in the Description.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: June 28, 2016
    Assignees: DAI NIPPON PRINTING CO., LTD., DNP FINE CHEMICALS CO., LTD.
    Inventors: Masato Okada, Daisuke Endo, Michihiro Ogura, Hiroaki Segawa, Tomoki Murata, Yoshihito Maeno, Hiroshi Oshima
  • Publication number: 20150368473
    Abstract: The present invention is to provide a colorant dispersion liquid which is able to form a high-luminance coating film having better heat resistance compared to the case of using conventional dyes. Disclosed is a colorant dispersion liquid containing (A) a colorant, (B) a dispersant, and (C) a solvent, wherein the colorant (A) contains a color material represented by the following general formula (I) and a xanthene-based dye; a solubility of the color material in the solvent (C) and that of the xanthene-based dye in the solvent (C) are each 0.2 (g/100 g solvent) or less at 23° C.; and the color material and the xanthene-based dye are dispersed in the solvent (C) by the dispersant (B): (The symbols in the formula are as described in the Description.
    Type: Application
    Filed: February 4, 2014
    Publication date: December 24, 2015
    Inventors: Masato OKADA, Daisuke ENDO, Michihiro OGURA, Hiroaki SEGAWA, Tomoki MURATA, Yoshihito MAENO, Hiroshi OSHIMA
  • Patent number: 8907765
    Abstract: An RFID tag detection method and system are described. The method comprises transmitting, in a predetermined area, a predetermined number of RFID tag request signals. The method also comprises determining that an RFID tag is positioned within the predetermined area based on a comparison of a count of zero or more received RFID tag response signals from the RFID tag with the predetermined number of RFID tag request signals.
    Type: Grant
    Filed: December 24, 2007
    Date of Patent: December 9, 2014
    Assignee: Hewlett-Packard Development Company, L. P.
    Inventor: Hiroshi Oshima
  • Patent number: 8268928
    Abstract: [Object] Provided are a sheet-like molded article having excellent surface smoothness, moldability, flexibility, and a high transmittance of short-wavelength light, and a thermoplastic polymer composition used to produce the sheet-like molded article.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: September 18, 2012
    Assignee: Kuraray CC., Ltd.
    Inventors: Hiroshi Oshima, Toyoaki Kurihara
  • Patent number: 8129030
    Abstract: [PROBLEMS] To provide a polymer composition that simultaneously has excellent paintability and high oil resistance and is also excellent in thin-wall moldability and flexibility; and a molded article produced by injection-molding of the composition and being suitable for composite-molded grips, automotive interior and exterior trims, and so on.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: March 6, 2012
    Assignee: Kuraray Co., Ltd.
    Inventors: Hiroshi Oshima, Toyoaki Kurihara, Akiko Ide, Kenichi Hamada
  • Patent number: 8119749
    Abstract: The present invention relates to a method of obtaining a (meth)acrylate-based polymer from a reaction solution containing the (meth)acrylate-based polymer, the method including (a) adding an acid to the reaction solution containing the (meth)acrylate-based polymer which is obtained by polymerizing a monomer composed mainly of a (meth)acrylate in a water-insoluble organic solvent in the presence of a metal compound, (b) washing the reaction solution to which the acid has been added by admixing water at 90° C. or more, (c) separating the mixed solution of the reaction solution and water generated by the washing in (b) into an organic solvent solution layer and an aqueous solution layer, and (d) isolating each of the organic solvent solution layer and the aqueous solution layer in order to obtain the (meth)acrylate-based polymer from the isolated organic solvent solution layer.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: February 21, 2012
    Assignee: Kuraray Co., Ltd.
    Inventors: Kenichi Hamada, Susumu Matsunaga, Kazunori Watanabe, Masaji Kato, Jun Nagai, Tatsufumi Watanabe, Tatsuo Morotomi, Hiroshi Oshima
  • Publication number: 20110263409
    Abstract: The invention provides a dielectric material for a plasma display panel which has a low dielectric constant, can be fired at a low temperature, for example, 600° C. or below, causes no warpage in a glass substrate when fired on the glass substrate and can increase the strength of the glass substrate when fired on the glass substrate, and a glass plate for a plasma display panel including a dielectric layer formed using the dielectric material. The dielectric material for a plasma display panel according to the present invention is a dielectric material for a plasma display panel containing ZnO—B2O3—SiO2-based glass powder, wherein the glass powder contains substantially no PbO and contains, by mole percent, 1% (inclusive) to 10% (exclusive) ZnO, 26% (inclusive) to 50% (inclusive) B2O3 and 42% (exclusive) to 52% (inclusive) SiO2.
    Type: Application
    Filed: October 13, 2009
    Publication date: October 27, 2011
    Applicant: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Hiroyuki Oshita, Hiroshi Oshima, Haruka Taniguchi, Tatsuya Goto, Yoshiro Kitamura
  • Patent number: 8028508
    Abstract: A mower unit includes a housing, a pair of cutting blades arranged inside the housing, each of the cutting blades being rotatable about a respective vertical axis supported by the housing, the cutting blades being driven to be rotated in opposite directions, and a baffle arranged generally between rotation regions of the cutting blades to guide air flows generated by the cutting blades. The baffle defines an upper baffle portion located adjacent an upper region of the housing, a lower baffle portion located adjacent a lower region of the housing, and an air passage formed for allowing the air flows to flow between the upper baffle portion and lower baffle portion.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 4, 2011
    Assignee: Kubota Corporation
    Inventors: Ryouzou Imanishi, Tomoyuki Morikawa, Katsuhiko Uemura, Nobuyuki Yamashita, Kazuaki Kurohara, Hiroshi Oshima
  • Publication number: 20110230330
    Abstract: The invention provides a dielectric material for a plasma display panel which can be fired at a low temperature, is less likely to cause warpage in a glass substrate when fired on the glass substrate and can increase the strength of the glass substrate when fired on the glass substrate, and a glass plate for a plasma display panel including a dielectric layer formed using the dielectric material. The dielectric material for a plasma display panel contains ZnO—B2O2—SiO2-based glass powder, and the glass powder contains substantially no PbO and contains, by mole percent, 1% to 20% (both inclusive) ZnO, 26% to 50% (both inclusive) B2O2, 42% (exclusive) to 50% (inclusive) SiO2, and 0.1% to 5% (both inclusive) Bi2O2.
    Type: Application
    Filed: October 14, 2009
    Publication date: September 22, 2011
    Applicant: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Kumiko Kondo, Yoshiro Kitamura, Hiroyuki Oshita, Hiroshi Oshima, Haruka Taniguchi
  • Patent number: 8022139
    Abstract: A polylactic acid composition comprising (A) a polylactic acid-series resin and (B) an acrylic triblock copolymer is prepared. The composition fulfills the following requirements: (1) the acrylic triblock copolymer (B) is a triblock polymer comprising (B1) a polymer block having a glass-transition temperature of not higher than 25° C., (B2a) a polymer block which has a glass-transition temperature of not lower than 60° C. and is bound to a terminal of the polymer block (B1), and (B2b) a polymer block which has a glass-transition temperature of not lower than 60° C. and is bound to another terminal thereof; (2) the polymer block (B1) comprises a main structural unit derived from an acrylate, and the polymer block (B2a) and the polymer block (B2b) independently comprise a main structural unit derived from a methacrylate; and (3) both of the weight-average molecular weights of the polymer block (B2a) and polymer block (B2b) are smaller than the weight-average molecular weight of the polymer block (B1).
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: September 20, 2011
    Assignee: Kuraray Co., Ltd.
    Inventors: Toyoaki Kurihara, Kenichi Hamada, Akiko Ide, Eiji Iwasa, Tomokazu Ise, Yoshihiro Morishita, Hiroshi Oshima
  • Publication number: 20110218303
    Abstract: [Object] Provided are a sheet-like molded article having excellent surface smoothness, moldability, flexibility, and a high transmittance of short-wavelength light, and a thermoplastic polymer composition used to produce the sheet-like molded article.
    Type: Application
    Filed: November 5, 2009
    Publication date: September 8, 2011
    Applicant: KURARAY CO., LTD.
    Inventors: Hiroshi Oshima, Toyoaki Kurihara
  • Patent number: 7980050
    Abstract: A mower unit includes a mower deck, a plurality of blades mounted inside the mower deck and rotatable about vertical shafts supported to the mower deck, the mower deck defining, on one lateral side thereof, a discharge outlet for discharging cut grass cut by the plurality of blades, and an opening and closing member configured to be movable to a closing position for closing the discharge outlet and also to an opening position away from the discharge outlet for opening the discharge outlet, the opening and closing member at the opening position being disposed along an outer face of the mower deck.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: July 19, 2011
    Assignee: Kubota Corporation
    Inventors: Ryouzou Imanishi, Hiroaki Kitaguchi, Nobuyuki Yamashita, Hiroki Nagai, Hiroshi Oshima, Tomoyuki Morikawa, Takashi Fujii, Toshiki Kanai, Katsuhiko Uemura, Hiroyuki Ogasawara
  • Publication number: 20100119797
    Abstract: [Problems] To provide a polymer composition that simultaneously has excellent paintability and high oil resistance and is also excellent in thin-wall moldability and flexibility; and a molded article produced by injection-molding of the composition and being suitable for composite-molded grips, automotive interior and exterior trims, and so on.
    Type: Application
    Filed: March 26, 2008
    Publication date: May 13, 2010
    Applicant: KURARAY CO., LTD.
    Inventors: Hiroshi Oshima, Toyoaki Kurihara, Akiko Ide, Kenichi Hamada
  • Publication number: 20100043379
    Abstract: A mower unit includes a mower deck, a plurality of blades mounted inside the mower deck and rotatable about vertical shafts supported to the mower deck, the mower deck defining, on one lateral side thereof, a discharge outlet for discharging cut grass cut by the plurality of blades, and an opening and closing member configured to be movable to a closing position for closing the discharge outlet and also to an opening position away from the discharge outlet for opening the discharge outlet, the opening and closing member at the opening position being disposed along an outer face of the mower deck.
    Type: Application
    Filed: September 22, 2009
    Publication date: February 25, 2010
    Applicant: KUBUTA CORPORATION
    Inventors: Ryouzou IMANISHI, Hiroaki KITAGUCHI, Nobuyuki YAMASHITA, Hiroki NAGAI, Hiroshi OSHIMA, Tomoyuki MORIKAWA, Takashi FUJII, Toshiki KANAI, Katsuhiko UEMURA, Hiroyuki OGASAWARA
  • Patent number: 7617665
    Abstract: A mower includes a mower deck that opens downward; a plurality of vertical shafts rotatably supported by the mower deck; a plurality of cutting blades driven by the vertical shafts inside the mower deck; a cutting chamber formed inside the mower deck and provided for each cutting blade; and an opening formed between the cutting chambers for adjacent cutting blades. The cutting blades are arranged generally in a lateral direction with an adjacent pair of cutting blades being rotatably driven in opposite directions from each other. The opening allows for flow passage of cut grass at least from one of the cutting chambers to the other cutting chamber.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: November 17, 2009
    Assignee: Kubota Corporation
    Inventors: Nobuyuki Yamashita, Hiroshi Oshima, Hiroyuki Ogasawara, Toshiki Kanai
  • Patent number: 7610742
    Abstract: A mower unit includes a mower deck, a plurality of blades mounted inside the mower deck and rotatable about vertical shafts supported to the mower deck, the mower deck defining, on one lateral side thereof, a discharge outlet for discharging cut grass cut by the plurality of blades, and an opening and closing member configured to be movable to a closing position for closing the discharge outlet and also to an opening position away from the discharge outlet for opening the discharge outlet, the opening and closing member at the opening position being disposed along an outer face of the mower deck.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 3, 2009
    Assignee: Kubota Corporation
    Inventors: Ryouzou Imanishi, Hiroaki Kitaguchi, Nobuyuki Yamashita, Hiroki Nagai, Hiroshi Oshima, Tomoyuki Morikawa, Takashi Fujii, Toshiki Kanai, Katsuhiko Uemura, Hiroyuki Ogasawara
  • Publication number: 20090241501
    Abstract: A mower unit includes a housing, a pair of cutting blades arranged inside the housing, each of the cutting blades being rotatable about a respective vertical axis supported by the housing, the cutting blades being driven to be rotated in opposite directions, and a baffle arranged generally between rotation regions of the cutting blades to guide air flows generated by the cutting blades. The baffle defines an upper baffle portion located adjacent an upper region of the housing, a lower baffle portion located adjacent a lower region of the housing, and an air passage formed for allowing the air flows to flow between the upper baffle portion and lower baffle portion.
    Type: Application
    Filed: June 5, 2009
    Publication date: October 1, 2009
    Applicant: KUBOTA CORPORATION
    Inventors: Ryouzou Imanishi, Tomoyuki Morikawa, Katsuhiko Uemura, Nobuyuki Yamashita, Kazuaki Kurohara, Hiroshi Oshima
  • Publication number: 20090239433
    Abstract: A polylactic acid composition comprising (A) a polylactic acid-series resin and (B) an acrylic triblock copolymer is prepared. The composition fulfills the following requirements: (1) the acrylic triblock copolymer (B) is a triblock polymer comprising (B1) a polymer block having a glass-transition temperature of not higher than 25° C., (B2a) a polymer block which has a glass-transition temperature of not lower than 60° C. and is bound to a terminal of the polymer block (B1), and (B2b) a polymer block which has a glass-transition temperature of not lower than 60° C. and is bound to another terminal thereof; (2) the polymer block (B1) comprises a main structural unit derived from an acrylate, and the polymer block (B2a) and the polymer block (B2b) independently comprise a main structural unit derived from a methacrylate; and (3) both of the weight-average molecular weights of the polymer block (B2a) and polymer block (B2b) are smaller than the weight-average molecular weight of the polymer block (B1).
    Type: Application
    Filed: November 21, 2006
    Publication date: September 24, 2009
    Applicant: KURARAY CO., LTD
    Inventors: Toyoaki Kurihara, Kenichi Hamada, Akiko Ide, Eiji Iwasa, Tomokazu Ise, Yoshihiro Morishita, Hiroshi Oshima
  • Publication number: 20090160647
    Abstract: An RFID tag detection method and system are described. The method comprises transmitting, in a predetermined area, a predetermined number of RFID tag request signals. The method also comprises determining that an RFID tag is positioned within the predetermined area based on a comparison of a count of zero or more received RFID tag response signals from the RFID tag with the predetermined number of RFID tag request signals.
    Type: Application
    Filed: December 24, 2007
    Publication date: June 25, 2009
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventor: Hiroshi OSHIMA
  • Patent number: 7543435
    Abstract: A mower unit includes a housing, a pair of cutting blades arranged inside the housing, each of the cutting blades being rotatable about a respective vertical axis supported by the housing, the cutting blades being driven to be rotated in opposite directions, and a baffle arranged generally between rotation regions of the cutting blades to guide air flows generated by the cutting blades. The baffle defines an upper baffle portion located adjacent an upper region of the housing, a lower baffle portion located adjacent a lower region of the housing, and an air passage formed for allowing the air flows to flow between the upper baffle portion and lower baffle portion.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: June 9, 2009
    Assignee: Kubota Corporation
    Inventors: Ryouzou Imanishi, Tomoyuki Morikawa, Katsuhiko Uemura, Nobuyuki Yamashita, Kazuaki Kurohara, Hiroshi Oshima