Patents by Inventor Takahiro Ohmura
Takahiro Ohmura 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).
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Patent number: 9982831Abstract: Provided is a thermal insulation having both excellent thermal insulating performance and excellent strength, and a method of producing the same. A method of producing a thermal insulation according to the present invention includes curing (S2) a dry-pressed compact, including silica fine particles each having an average particle diameter of 50 nm or less and a reinforcement fiber, at a relative humidity of 70% or more.Type: GrantFiled: June 24, 2016Date of Patent: May 29, 2018Assignee: NICHIAS CORPORATIONInventors: Yasuo Ito, Yoshihiko Goto, Isami Abe, Shigeru Nakama, Takahiro Ohmura
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Publication number: 20160305597Abstract: Provided is a thermal insulation having both excellent thermal insulating performance and excellent strength, and a method of producing the same. A method of producing a thermal insulation according to the present invention includes curing (S2) a dry-pressed compact, including silica fine particles each having an average particle diameter of 50 nm or less and a reinforcement fiber, at a relative humidity of 70% or more.Type: ApplicationFiled: June 24, 2016Publication date: October 20, 2016Applicant: NICHIAS CORPORATIONInventors: Yasuo ITO, Yoshihiko GOTO, Isami ABE, Shigeru NAKAMA, Takahiro OHMURA
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Patent number: 8591780Abstract: Provided is a thermal insulation having both excellent thermal insulating performance and excellent strength, and a method of producing the same. A method of producing a thermal insulation according to the present invention includes curing (S2) a dry-pressed compact including silica fine particles each having an average particle diameter of 50 nm or less and an alkaline-earth silicate fiber at a relative humidity of 70% or more.Type: GrantFiled: October 13, 2010Date of Patent: November 26, 2013Assignee: Nichias CorporationInventors: Yasuo Ito, Yoshihiko Goto, Isami Abe, Shigeru Nakama, Takahiro Ohmura
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Patent number: 8562880Abstract: Provided is a thermal insulation having both excellent thermal insulating performance and excellent strength, and a method of producing the same. A method of producing a thermal insulation according to the present invention includes curing (S2) a dry-pressed compact including silica fine particles each having an average particle diameter of 50 nm or less and an alkaline-earth silicate fiber at a relative humidity of 70% or more.Type: GrantFiled: October 13, 2010Date of Patent: October 22, 2013Assignee: Nichias CorporationInventors: Yasuo Ito, Yoshihiko Goto, Isami Abe, Shigeru Nakama, Takahiro Ohmura
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Publication number: 20110091721Abstract: Provided is a thermal insulation having both excellent thermal insulating performance and excellent strength, and a method of producing the same. A method of producing a thermal insulation according to the present invention includes curing (S2) a dry-pressed compact including silica fine particles each having an average particle diameter of 50 nm or less and an alkaline-earth silicate fiber at a relative humidity of 70% or more.Type: ApplicationFiled: October 13, 2010Publication date: April 21, 2011Applicant: NICHIAS CORPORATIONInventors: Yasuo ITO, Yoshihiko GOTO, Isami ABE, Shigeru NAKAMA, Takahiro OHMURA
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Publication number: 20110089363Abstract: Provided is a thermal insulation having both excellent thermal insulating performance and excellent strength, and a method of producing the same. A method of producing a thermal insulation according to the present invention includes curing (S2) a dry-pressed compact, including silica fine particles each having an average particle diameter of 50 nm or less and a reinforcement fiber, at a relative humidity of 70% or more.Type: ApplicationFiled: October 13, 2010Publication date: April 21, 2011Applicant: NICHIAS CORPORATIONInventors: Yasuo ITO, Yoshihiko GOTO, Isami ABE, Shigeru NAKAMA, Takahiro OHMURA
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Publication number: 20110041945Abstract: The present invention relates to an automotive exhaust pipe including: an exhaust pipe main body; and a metallic cylindrical body being inserted inside the exhaust pipe main body, having openings at an open area ratio of 95% or smaller, and having a thickness of 3 mm or smaller.Type: ApplicationFiled: August 20, 2010Publication date: February 24, 2011Inventors: Takahiro Ohmura, Masatake Onodera, Takahiro Niwa, Toshihiko Kumasaka, Akinao Hiraoka
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Publication number: 20080237244Abstract: The present invention provides a heat-insulating container and a method for manufacturing the same which make it possible to lower manufacturing costs, and to obtain a sufficient heat-insulating effect, and which are also suitably used in a limited installation space such as an engine compartment or the like. The present invention is a heat-insulating container for storing and maintaining a temperature of a liquid, comprising an inside container (1) having inlet and outlet opening part (5) for the liquid, and a sheet-form outer covering (3) which accommodates the inside container (1). A heat-insulating material (2) is sealed between the outer covering (3) and the inside container (1), and a heat-insulating space in a state of reduced pressure is formed between the outer covering (3) and the inside container (1), flange parts are formed on the liquid inlet and outlet openings of the inside container (1), the outer covering (3) and the inside container (1) are joined by the flange parts.Type: ApplicationFiled: March 19, 2008Publication date: October 2, 2008Applicant: NICHIAS CORPORATIONInventors: Keiji Tsukahara, Takahiro Ohmura, Kunihiko Yano
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Publication number: 20080078771Abstract: The present invention provides an insulated container capable of reducing manufacturing costs, obtaining a sufficient heat insulating effect, and capable of being applied to various installation spaces having different shapes, and a method of manufacturing the same. The insulated container, which stores a liquid at a maintained temperature, includes: an internal container (1) which stores the liquid therein and includes a liquid inlet (5) and a liquid outlet (5); a sheet-like covering material (3) which houses the internal container (1); and an insulated space which is provided between the covering material (3) and the internal container (1) and is filled with a heat insulating material (2) and a gas adsorbent (4) to be decompressed. In the insulated container, a filler (6) is provided to a joint section (7) between the covering material (3) and the internal container (1).Type: ApplicationFiled: September 21, 2007Publication date: April 3, 2008Applicant: NICHIAS CORPORATIONInventors: Keiji Tsukahara, Kunihiko Yano, Toshihiko Kumasaka, Takahiro Ohmura, Atsushi Omura
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Patent number: 7319114Abstract: Hollow polymer particles are provided to have an average particle diameter of 15 ?m or more and 500 ?m or less and a 10%-compressive strength of 1.5 MPa or more, and the hollow polymer particle includes a hollow portion in the interior. In addition, a porous ceramic filter is provided by firing a shaped material composed of a mixture in which the above-described hollow polymer particles are mixed to disperse in a ceramic composition.Type: GrantFiled: March 12, 2002Date of Patent: January 15, 2008Assignees: Sekisui Chemical Co., Ltd., Tokuyama Sekisui Co., Ltd.Inventors: Takahiro Ohmura, Yasushi Nakata, Yasuhiro Kawaguchi, Takahiro Yoshida
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Patent number: 7250212Abstract: A formed article obtained by pressure forming a porous body-coated fiber includes an inorganic fiber and a porous body made of fine inorganic particles associated with one another in a ring-shaped or helical manner to form secondary particles. The inorganic fiber is coated with the porous body. Also provided is a formed article made from porous body-coated fiber on a porous body-coated particle. The porous body-coated particle includes a core particle and a porous body made of fine particles of a first inorganic compound associated with one another in ring-shaped or helical manner to form secondary particles. The core particle is coated with the porous body.Type: GrantFiled: May 28, 2004Date of Patent: July 31, 2007Assignees: Nichias Corporation, Hosokawa Powder Technology Research InstituteInventors: Makio Naito, Hiroya Abe, Yasuo Ito, Takahiro Ohmura, Takehisa Fukui, Masahiro Yoshikawa
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Publication number: 20050272863Abstract: Fine crosslinked-resin particles having such a high degree of crosslinking that good mechanical strength, heat resistance and solvent resistance are developed. The fine crosslinked-resin particles have a mean particle diameter of not less than 0.01 ?m to not more than 0.30 ?m. The fine crosslinked-resin particles are produced by drying a fine crosslinked-resin particle emulsion obtained by ethylenic unsaturated monomers, which contain not less than 20 weight % of monomer having at least three ethylenic unsaturated groups in a molecule and are hardly soluble in water, which are polymerized in a dispersion medium containing water as a major component.Type: ApplicationFiled: August 8, 2005Publication date: December 8, 2005Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Hiroshi Yamauchi, Takahiro Ohmura
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Publication number: 20050011343Abstract: The present invention provides a porous body-coated fiber comprising: an inorganic fiber; and a porous body comprising fine inorganic particles associated with one another in ring-shaped or helical manner to form secondary particles, wherein the inorganic fiber is coated with the porous body. Also provided is a porous body-coated particle comprising: a core particle comprising a second inorganic compound; and a porous body comprising fine particles of a first inorganic compound associated with one another in ring-shaped or helical manner to form secondary particles, wherein said core particle is coated with said porous body. Still further provided is a formed article using the porous body-coated fiber or the porous body-coated particle.Type: ApplicationFiled: May 28, 2004Publication date: January 20, 2005Inventors: Makio Naito, Hiroya Abe, Yasuo Ito, Takahiro Ohmura, Takehisa Fukui, Masahiro Yoshikawa
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Publication number: 20040192528Abstract: It is an object of the present invention to provide a ceramic roller which is used as a guide roller with a superior heat-insulating property to, for example, a high temperature pressing belt.Type: ApplicationFiled: March 29, 2004Publication date: September 30, 2004Inventors: Munehiko Fukase, Toshiyuki Kishida, Isami Abe, Takahiro Ohmura
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Publication number: 20040091709Abstract: Hollow polymer particles are provided to have an average particle diameter of 15 &mgr;m or more and 500 &mgr;m or less and a 10%-compressive strength of 1.5 MPa or more, and the hollow polymer particle includes a hollow portion in the interior. In addition, a porous ceramic filter is provided by firing a shaped material composed of a mixture in which the above-described hollow polymer particles are mixed to disperse in a ceramic composition.Type: ApplicationFiled: September 11, 2003Publication date: May 13, 2004Applicants: SEKISUI CHEMICAL CO., LTD, TOKUYAMA SEKISUI CO., LTD.Inventors: Takahiro Ohmura, Yasushi Nakata, Yasuhiro Kawaguchi, Takahiro Yoshida
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Publication number: 20040039114Abstract: Fine crosslinked-resin particles having such a high degree of crosslinking that good mechanical strength, heat resistance and solvent resistance can be developed. The fine crosslinked-resin particles have a mean particle diameter in the range of not less than 0.01 &mgr;m to not more than 0.30 &mgr;m and are such that when 10 g of powders comprising the fine crosslinked-resin particles and 20 g of iron powders are put in a 300 ml glass ball mill container containing 5 g of polyamide ball of a diameter of 2 mm, 10 g of polyamide ball of a diameter of 5 mm and 10 g of polyamide ball of a diameter of 10 mm and are agitated and mixed by rotating the ball mill container at a rotation speed of 100 rpm for 30 minutes and, then, the mixed powders are taken out from the ball mill container and are observed by an electron microscope, not more than two defective fine crosslinked-resin particles are observed out of 20 fine crosslinked-resin particles arbitrarily selected from the mixed powders.Type: ApplicationFiled: June 5, 2003Publication date: February 26, 2004Applicant: SEKISUI CHEMICAL CO., LTD 2-4-4, Nishitemma, Kita-ku Osaka-shi, 530-8565 JapInventors: Hiroshi Yamauchi, Takahiro Ohmura
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Patent number: 6617363Abstract: A method of producing a thermally expansive microcapsule that is excellent in heat resistance and solvent resistance, narrow in breadth of the distribution of particle size, and extremely low in secondary cohesion of the particles when heated, wherein a polymer obtained from the component comprising not less than 80 weight % of monomer of nitrile series, less than weight % of monomer of non-nitrile series, and 0.05-1 weight % of at least tetrafunctional cross-linking agent and/or of long side chain of cross-linking agent is used to micro-encapsulate a volatile expanding agent that comes into its gaseous state at a temperature equal to or less than a softening point of the polymer.Type: GrantFiled: January 17, 2002Date of Patent: September 9, 2003Assignees: Sekisui Chemical Co., Ltd., Tokuyama Sekisui Co., Ltd.Inventors: Takahiro Ohmura, Yasushi Nakata, Yasuhiro Kawaguchi
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Publication number: 20020135084Abstract: A method of producing a thermally expansive microcapsule that is excellent in heat resistance and solvent resistance, narrow in breadth of the distribution of particle size, and extremely low in secondary cohesion of the particles when heated, wherein a polymer obtained from the component comprising not less than 80 weight % of monomer of nitrile series, less than weight % of monomer of non-nitrile series, and 0.05-1 weight % of at least tetrafunctional cross-linking agent and/or of long side chain of cross-linking agent is used to micro-encapsulate a volatile expanding agent that comes into its gaseous state at a temperature equal to or less than a softening point of the polymer.Type: ApplicationFiled: January 17, 2002Publication date: September 26, 2002Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Takahiro Ohmura, Yasushi Nakata, Yasuhiro Kawaguchi