Patents by Inventor Mitsuhiro Otani

Mitsuhiro Otani 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: 9102769
    Abstract: There is provided a polyol-crosslinkable fluorine-containing elastomer composition which is excellent in chemical resistance, solvent resistance (especially resistance to an acidic solvent) and fuel resistance (especially biofuel resistance) and is crosslinkable at the same crosslinking speed as in the case of using calcium hydroxide in a usual amount even without blending calcium hydroxide (or decreasing a blending amount of calcium hydroxide). The fluorine-containing elastomer composition comprises a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a silicate of an alkali metal.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 11, 2015
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Michiko Doi, Mitsuhiro Otani
  • Publication number: 20130267662
    Abstract: There is provided a polyol-crosslinkable fluorine-containing elastomer composition which is excellent in chemical resistance, solvent resistance (especially resistance to an acidic solvent) and fuel resistance (especially biofuel resistance) and is crosslinkable at the same crosslinking speed as in the case of using calcium hydroxide in a usual amount even without blending calcium hydroxide (or decreasing a blending amount of calcium hydroxide). The fluorine-containing elastomer composition comprises a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a silicate of an alkali metal.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 10, 2013
    Inventors: Michiko DOI, Mitsuhiro OTANI
  • Patent number: 8481140
    Abstract: A molded article prepared by polyol-crosslinking a fluorine-containing elastomer composition containing a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a silicate of an alkali metal.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: July 9, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Michiko Doi, Mitsuhiro Otani
  • Publication number: 20110290363
    Abstract: A fuel hose including a laminated article having: a layer including a thermoplastic polymer composition which includes a fluororesin (A) including a fluorine-containing ethylenic polymer (a) and a crosslinked fluororubber (B) including a fluororubber (b) that has been at least partially crosslinked. The fluorine-containing ethylenic polymer (a), the at least partially crosslinked fluororubber (b) and a weight ratio of the fluororesin (A) to the crosslinked fluororubber (B) are as defined herein. A fuel permeation coefficient and a tensile modulus of elasticity of a molded article including the thermoplastic polymer composition is not more than 20 g·mm/m2·day and is not more than 400 MPa. The fuel hose further includes a layer including at least one crosslinked rubber.
    Type: Application
    Filed: August 8, 2011
    Publication date: December 1, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomihiko YANAGIGUCHI, Toshiki ICHISAKA, Haruhisa MASUDA, Mitsuhiro OTANI
  • Publication number: 20110200777
    Abstract: There is provided a polyol-crosslinkable fluorine-containing elastomer composition which is excellent in chemical resistance, solvent resistance (especially resistance to an acidic solvent) and fuel resistance (especially biofuel resistance) and is crosslinkable at the same crosslinking speed as in the case of using calcium hydroxide in a usual amount even without blending calcium hydroxide (or decreasing a blending amount of calcium hydroxide). The fluorine-containing elastomer composition comprises a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a silicate of an alkali metal.
    Type: Application
    Filed: December 5, 2008
    Publication date: August 18, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Michiko Doi, Mitsuhiro Otani
  • Publication number: 20110086983
    Abstract: The object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a molded article, a laminated article, a hose for industrial use, a tube for industrial use, a fuel hose and a fuel tube comprising the thermoplastic polymer composition. Further object of the present invention is to provide a process for preparing a thermoplastic polymer composition.
    Type: Application
    Filed: December 10, 2010
    Publication date: April 14, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomihiko YANAGIGUCHI, Toshiki ICHISAKA, Haruhisa MASUDA, Mitsuhiro OTANI
  • Publication number: 20090226654
    Abstract: The object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a molded article, a laminated article, a hose for industrial use, a tube for industrial use, a fuel hose and a fuel tube comprising the thermoplastic polymer composition. Further object of the present invention is to provide a process for preparing a thermoplastic polymer composition.
    Type: Application
    Filed: November 25, 2005
    Publication date: September 10, 2009
    Applicant: Daikin Industries, Ltd
    Inventors: Tomihiko Yanagiguchi, Toshiki Ichisaka, Haruhisa Masuda, Mitsuhiro Otani
  • Publication number: 20090202769
    Abstract: An object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance and chemical resistance. Further object of the present invention is to provide a molded article, a sealing material, peripheral parts of fuel system, a fuel hose and a fuel container comprising the thermoplastic polymer composition. The present invention relates to a thermoplastic polymer composition comprising a fluororesin (A) containing a fluorine-containing ethylenic polymer (a), a crosslinked fluororubber (B) in which at least a part of at least one kind of fluororubber (b) is crosslinked, and a fluorine-containing thermoplastic elastomer (C).
    Type: Application
    Filed: November 25, 2005
    Publication date: August 13, 2009
    Applicant: Daikan Industries, Ltd.
    Inventors: Haruhisa Masuda, Mitsuhiro Otani, Tomihiko Yanagiguchi, Toshiki Ichisaka
  • Publication number: 20090011164
    Abstract: An object of the present invention is to provide a thermoplastic polymer composition which is flexible and capable of melt-molding and has excellent heat resistance, chemical resistance and oil resistance. The thermoplastic polymer composition comprises 10 to 95% by weight of a fluororesin (A) and 90 to 5% by weight of a crosslinked fluororubber (B), in which the fluororubber (A) comprises a fluorine-containing ethylenic polymer (a) having a melting point of 120° to 330° C. and the crosslinked fluororubber (B) is obtained by cross-linking dynamically at least one kind of fluororubber (b-1) or a fluorine-containing thermoplastic elastomer (b-2) in the presence of the fluororubber (A) and a crosslinking agent (C) under melting condition.
    Type: Application
    Filed: November 25, 2005
    Publication date: January 8, 2009
    Applicant: DAIKIN INDUSTRIES, LTD
    Inventors: Haruhisa Masuda, Mitsuhiro Otani, Tomihiko Yanagiguchi, Toshiki Ichisaka
  • Publication number: 20080032080
    Abstract: A thermoplastic, moldable, millable, extrudable composition of matter involving at least three polymeric components: a fluoroelastomer, an ETFE (ethylene/tetrafluoroethylene alternating copolymer, which may optionally contain one or more comonomers in minor amounts to alter crystallinity and melting temperature) fluoroplastic, and a block fluoropolymer containing at least one fluoroelastomer block and at least one ETFE block. The fluoroelastomer component and optionally the fluoroelastomer portion of the block fluoropolymer are crosslinked in a dynamic vulcanization process. Also disclosed are multilayer articles in which the aforesaid fluoro-TPV is adhered to an ETFE plastic layer.
    Type: Application
    Filed: March 1, 2007
    Publication date: February 7, 2008
    Applicant: DAIKIN AMERICA, INC.
    Inventors: Roger Faulkner, James Reilly, Haruhisa Masuda, Mitsuhiro Otani, Tomihiko Yanagiguchi, Toshiki Ichisaka
  • Patent number: 7288889
    Abstract: A phosphor in which water adsorption onto the surface of a blue phosphor is inhibited, luminance degradation and chromaticity shift of the phosphor is decreased, or discharge characteristics thereof is improved, and a plasma display device using the phosphor. In phosphor layers used for plasma display, selectively coating at least the vicinity of the sides of planes of mirror symmetry containing Ba atoms in a blue phosphor with an oxide or a fluorine-containing oxide inhibits water adsorption onto the surface of the blue phosphor, decreases luminance degradation and chromacity shift of a phosphor, or improves discharge characteristics thereof.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: October 30, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Kawamura, Masaki Aoki, Kazuhiko Sugimoto, Mitsuhiro Otani, Junichi Hibino
  • Patent number: 7232530
    Abstract: A method of manufacturing a plasma display device which prevents the brightness of a phosphor layer from lowering is disclosed, and the method can form the phosphor layer in a stable manner because a nozzle is free from clogging. At least one of the phosphor layers has a green phosphor layer containing green phosphor having zero or positive charges and a crystal structure of Zn2SiO4:Mn. Green phosphor ink, whose major ingredient is the green phosphor, is applied through the nozzle to discharging cells, thereby forming the green phosphor layer. The green phosphor ink is formed of green phosphor powder coated with an oxide having positive charges, or the ink is formed by crushing the green phosphor powder originally having negative charges and a crystal structure of Zn2SiO4:Mn such that the powder changes to have positive charges.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 19, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Kawamura, Mitsuhiro Otani, Masaki Aoki, Kazuhiko Sugimoto, Junichi Hibino
  • Patent number: 7208102
    Abstract: A plasma display device exhibits suppressed luminance degradation of a phosphor, a suppressed change in chromaticity and improved discharge characteristics as a result of suppression of adsorption of water or hydrocarbon-containing gas on a surface of a blue phosphor. A blue phosphor layer used in the plasma display device is formed of a compound expressed by Ba1?XMgAl10O17:EuX or Ba1?x?ySryMgAl10O17:EuX and includes at least one element that is selected from Nb, Ta, Pr, P, As, Sb, Bi and Tm which substitutes for a part of its Al or Mg element.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: April 24, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Aoki, Hiroyuki Kawamura, Kazuhiko Sugimoto, Mitsuhiro Otani, Junichi Hibino
  • Patent number: 7204939
    Abstract: The present invention aims to inhibit water adsorption onto the surface of a blue phosphor(blue fluorescent material), decrease luminance degradation and chromaticity shift of a phosphor, or improve discharge characteristics thereof. Used in a phosphor for a plasma display is a blue phosphor in which trivalent Eu ions substitute for part of divalent Eu ions. This substitution eliminates oxygen vacancy in the vicinity of layers containing Ba atoms (Ba—O layers) in the blue phosphor, and thus inhibits water adsorption onto the surface of the blue phosphor, decreases luminance degradation and chromaticity shift of the phosphor, or improves discharge characteristics thereof.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: April 17, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuhiko Sugimoto, Mitsuhiro Otani, Hiroyuki Kawamura, Masaki Aoki, Junichi Hibino
  • Patent number: 7183705
    Abstract: A plasma display device comprises blue phosphor which restricts adsorption of water and hydrocarbon gases to a surface thereof, reduces degradation of luminance and chromaticity change, and improves discharge characteristic. Among phosphor layers used for a plasma display, a blue phosphor layer comprises one of compounds symbolized by Ba1-xMgAl10O17:Eux and Ba1-x-ySryMgAl10O17:Eux, of which phosphor contains 0.2 to 0.8 in number x of Eu atoms, and the Eu atoms comprises 25% to 85% concentration of bivalent Eu ions, and 15% to 75% concentration of trivalent Eu ions.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: February 27, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Aoki, Hiroyuki Kawamura, Kazuhiko Sugimoto, Mitsuhiro Otani, Hiroshi Setoguchi, Junichi Hibino
  • Patent number: 7161298
    Abstract: A plasma display device includes a blue phosphor composed of a compound represented by Me3MgSi2O8:Eu (where, Me is at least calcium (Ca), strontium (Sr), or barium (Ba)). Concentration of bivalent Eu ions is 45 to 95% and concentration of trivalent Eu ions is 5 to 55%, of the europium (Eu) atoms contained in the blue phosphor layer. The plasma display device has less luminance degradation in a panel manufacturing process, high luminance, and long lifetime.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: January 9, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroyuki Kawamura, Kazuhiko Sugimoto, Masaki Aoki, Mitsuhiro Otani, Hiroshi Setoguchi, Junichi Hibino
  • Patent number: 7147802
    Abstract: The present invention relates to a plasma display device apt to increase luminance of a phosphor layer and prevent degradation of a discharge characteristic, and to a phosphor used for the device. This plasma display device has a green phosphor having a crystal structure of Zn2SiO4:Mn, and a monovalent oxide is substituted for part of the green phosphor. The monovalent oxide is one or more of lithium oxide (Li2O), sodium oxide (Na2O), potassium oxide (K2O), cesium oxide (Cs2O), rubidium oxide (Rb2O), copper oxide (Cu2O), and silver oxide (Ag2O). This structure allows reduction of oxygen defects occurring in the green phosphor, suppression of the luminance decrease of the green phosphor, and improvement of a discharge characteristic.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: December 12, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuhiko Sugimoto, Mitsuhiro Otani, Hiroyuki Kawamura, Masaki Aoki, Junichi Hibino
  • Patent number: 7067969
    Abstract: A blue phosphor composing a blue phosphor player in a plasma display device has a crystal structure of Ba(1-x)EuxMgAl10O17 or Ba(1-x-y)EuxSryMgAl10O17. In this blue phosphor, La substitutes for a proportion of Ba or Sr so as to achieve a high-luminance plasma display device with less luminance deterioration in panel manufacturing processes.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: June 27, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masaki Aoki, Hiroyuki Kawamura, Kazuhiko Sugimoto, Mitsuhiro Otani, Hiroshi Setoguchi, Junichi Hibino
  • Patent number: 6974845
    Abstract: An ultraviolet-crosslinkable polymer composition comprising a polymer containing iodine and/or bromine in an amount of from 0.001 to 10% by weight, a photoinitiator as a crosslinking agent and a polyfunctional unsaturated compound as a crosslinking aid. By using iodine and/or bromine as a crosslinking point, it is possible to carry out crosslinking of various polymers including fluorine-containing polymers which have been very difficult to crosslink with ultraviolet rays, and molding or processing can be made easily at working site at low temperature.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: December 13, 2005
    Assignee: Daikin Industries, Ltd.
    Inventors: Etsuo Minamino, Kazuyoshi Mimura, Mitsuhiro Otani
  • Patent number: 6963015
    Abstract: The present invention provides an ethylene-hexafluoropropylene copolymer which is suitable as a hose or seal for engine oil of an automobile and has sufficient amine resistance, while maintaining heat resistance, oil resistance and chemical resistance close to that of conventional fluorine rubber. The ethylene-hexafluoropropylene copolymer comprises 35 to 60% by mole of ethylene structural unit, 25 to 50% by mole of hexafluoropropylene structural unit and 0 to 15% by mole of structural unit derived from a monomer copolymerizable therewith and has a fluorine content of at least 60% by weight and number average molecular weight of 3,000 to 500,000.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: November 8, 2005
    Assignee: Daikin Industries, LTD
    Inventors: Masao Otsuka, Mitsuo Tsukamoto, Mitsuhiro Otani, Tatsuya Morikawa, Hideya Saito