Patents by Inventor Noriya Hayashi
Noriya Hayashi 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: 8506278Abstract: A resin transfer molding (RTM) molding device is designed to mold a fiber-reinforced plastic (FRP) molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a chain curing polymer (CCP). A CCP accommodating layer is disposed adjacent to an outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP to the exterior. An element for separating the molded body is disposed between the body and the layer.Type: GrantFiled: August 8, 2007Date of Patent: August 13, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
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Patent number: 8501070Abstract: A resin transfer molding (RTM) molding device is designed to mold a fiber-reinforced plastic (FRP) molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a chain curing polymer (CCP). A CCP accommodating layer is disposed adjacent to an outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP to the exterior. An element for separating the molded body is disposed between the body and the layer.Type: GrantFiled: July 7, 2011Date of Patent: August 6, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
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Publication number: 20120283352Abstract: Provided is an RTM moldable chain curing resin composition which can be molded with less energy in a short time, and which makes it possible to obtain a cured product that is superior in mechanical strength. A chain curing resin composition of the present invention includes an alicyclic epoxy compound (A) having two cyclohexene oxides in a molecule and a specific modified bisphenol A-type epoxy resin (B), and the content of the alicyclic epoxy compound (A) is 25 to 90% by mass, when the total of the component (A) and the component (B) is taken as 100% by mass.Type: ApplicationFiled: October 4, 2010Publication date: November 8, 2012Inventors: Atsushi Nohara, Manabu Kaneko, Noriya Hayashi
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Patent number: 8163376Abstract: Provided are a shape memory polymer composition, which comprises a bifunctional isocyanate and/or a trifunctional isocyanate, and a polyol having an average molecular weight of from 100 to 550, with a molar ratio in terms of functional groups of isocyanate:polyol=0.9 to 1.1:1.0; FRP having the shape memory polymer and a fibrous material; and a production process of the FRP comprising impregnating the fibrous material with, as a matrix resin, the shape memory polymer composition and curing. According to the present invention, the shape memory polymer composition has an extended pot life and FRP has excellent inflatability.Type: GrantFiled: March 15, 2004Date of Patent: April 24, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Noriya Hayashi, Shunichi Hayashi, Norio Miwa, Toshikatsu Nohara
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Publication number: 20110260376Abstract: The present invention relates to an RTM molding device designed to mold a FRP molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a CCP. A CCP accommodating layer is disposed adjacent to the outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP into the exterior. A means for separating the molded body is disposed between the body and the layer.Type: ApplicationFiled: July 7, 2011Publication date: October 27, 2011Inventors: Noriya HAYASHI, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
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Patent number: 7811475Abstract: There is provided a neutron shielding material which has heat resistance and has ensured neutron shielding performance even in a high-temperature environment during storage of a spent nuclear fuel for high burnup. A neutron shielding material having improved heat resistance and ensured neutron shielding performance due to the absence of an amine curing agent is provided by a neutron shielding material composition comprising a polymerization initiator, a polymerization component, a density increasing agent and a boron compound. As the polymerization component of the present invention, an epoxy component and an oxetane component are particularly preferably used.Type: GrantFiled: February 4, 2004Date of Patent: October 12, 2010Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Noriya Hayashi
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Patent number: 7803288Abstract: A neutron shield material that exhibits high heat resistance and ensures neutron shielding capacity. A composition for neutron shield material excelling in heat resistance and ensuring neutron shielding capacity is provided by comprising a hydrogenated bisphenol type epoxy of the formula: (1) (wherein each of R1 to R4 is independently selected from the group consisting of CH3, H, F, Cl and Br, and n=0 to 2), a hardening agent component having at least one cyclic structure and two or more amino groups, a density increasing agent and a boron compound.Type: GrantFiled: February 4, 2004Date of Patent: September 28, 2010Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Noriya Hayashi, Yoshiyuki Tasaka, Nobuo Ishihara
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Patent number: 7785525Abstract: Provided is an RTM molding method enabling to yield an FRP molded body formed so as to be increased in the fiber volume content and to thereby be made more excellent in strength and lightweightness. The resin composition is a chain-curing resin composition, and after the initiation of the curing of the resin composition, the highest temperature at the curing head of the resin composition, undergoing chain curing, within 10 seconds after the initiation of the curing is increased to be higher by 50° C. or more than the temperature of the resin composition at after the impregnation and before the curing, and thus, the resin composition is chain-cured with a Vf of 41% or more.Type: GrantFiled: July 27, 2006Date of Patent: August 31, 2010Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
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Publication number: 20100099805Abstract: The present invention provides a polymerization-curable composition comprising at least one kind of a cationically polymerizable compound having in the molecule at least one cationically polymerizable functional group selected from the group consisting of an alicyclic epoxy group, a vinylether group and an oxetane group, and at least one kind of a thermally latent polymerization initiator, characterized in that the polymerization-curable composition is allowed to undergo an exothermic polymerization reaction by applying primary thermal energy to a portion of the polymerization-curable composition, and then the entire polymerization-curable composition is polymerization-cured by secondary thermal energy generated as a result of the exothermic polymerization reaction; a method for polymerization-curing thereof; and a polymerization-cured resin composition.Type: ApplicationFiled: October 14, 2009Publication date: April 22, 2010Applicants: DENSO CORPORATION, Mitsubishi Heavy Industries, Ltd.Inventors: Hiroyuki Okuhira, Masashi Kitsuneduka, Akio Sugiura, Kazuo Kato, Noriya Hayashi, Hiroshi Mizuno
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Patent number: 7695588Abstract: Provided are a matrix resin composition for fiber reinforced plastic, which comprises a bifunctional or trifunctional liquid diisocyanate, a bifunctional polyol and a bifunctional chain extender containing an active hydrogen group, with a molar ratio of the functional groups of the diisocyanate, polyol and chain extender of 5.0 to 1.0:1.0:4.0 to 0, respectively; and a process for producing fiber reinforced plastic, which comprises impregnating a fibrous material with the resin composition and then curing. The present invention makes it possible to produce a molding containing fibers densely, having excellent strength and inflatability, in the production of an FRP molding by using a thermosetting resin having an extended pot life.Type: GrantFiled: October 31, 2002Date of Patent: April 13, 2010Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Noriya Hayashi, Shunichi Hayashi, Norio Miwa, Toshikatsu Nohara
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Publication number: 20100065205Abstract: A prepreg of FRP (fiber reinforced plastic) having with (i) a matrix resin composition containing a bifunctional isocyanate and/or a trifunctional isocyanate, a polyol and a bifunctional chain extender having two active hydrogen groups at a molar ratio, as a functional group, of isocyanate:polyol:chain extender=5.0 to 1.0:1.0:4.0 to 0, or containing a bifunctional isocyanate and/or a trifunctional isocyanate and a polyol at a molar ratio, as a functional group, of liquid isocyanate:polyol=0.9 to 1.1:1.0; and (ii) a fibrous material. A production process of the prepreg. According to the present invention, the prepreg has a sufficient pot life and permits convenient production of an FRP molding.Type: ApplicationFiled: November 17, 2009Publication date: March 18, 2010Inventors: Noriya Hayashi, Shunichi Hayashi, Norio Miwa, Toshikatsu Nohara
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Publication number: 20090184437Abstract: The present invention relates to an RTM molding device designed to mold a FRP molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a CCP. A CCP accommodating layer is disposed adjacent to the outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP into the exterior. A means for separating the molded body is disposed between the body and the layer.Type: ApplicationFiled: August 8, 2007Publication date: July 23, 2009Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
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Publication number: 20090051067Abstract: Provided is an RTM molding method enabling to yield an FRP molded body formed so as to be increased in the fiber volume content and to thereby be made more excellent in strength and lightweightness. The resin composition is a chain-curing resin composition, and after the initiation of the curing of the resin composition, the highest temperature at the curing head of the resin composition, undergoing chain curing, within 10 seconds after the initiation of the curing is increased to be higher by 50° C. or more than the temperature of the resin composition at after the impregnation and before the curing, and thus, the resin composition is chain-cured with a Vf of 41% or more.Type: ApplicationFiled: July 27, 2006Publication date: February 26, 2009Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
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Publication number: 20080035891Abstract: There is provided a neutron shielding material which has heat resistance and has ensured neutron shielding performance even in a high-temperature environment during storage of a spent nuclear fuel for high burnup. A neutron shielding material having improved heat resistance and ensured neutron shielding performance due to the absence of an amine curing agent is provided by a neutron shielding material composition comprising a polymerization initiator, a polymerization component, a density increasing agent and a boron compound. As the polymerization component of the present invention, an epoxy component and an oxetane component are particularly preferably used.Type: ApplicationFiled: February 4, 2004Publication date: February 14, 2008Inventor: Noriya Hayashi
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Publication number: 20080039566Abstract: An object of the present invention is to provide a neutron shielding material that exhibits high heat resistance and has ensured neutron shielding capability. Provided is a neutron shielding material composition that exhibits excellent heat resistance and has ensured neutron shielding capability, the composition comprising a hydrogenated bisphenol epoxy represented by a structural formula (1): wherein R1 to R4 independently selected from the group consisting of CH3, H, F, Cl and Br, and n is from 0 to 2; a curing agent component having at least one ring structure and a plurality of amino groups; a density-increasing agent; and a boron compound.Type: ApplicationFiled: February 4, 2004Publication date: February 14, 2008Inventors: Noriya Hayashi, Yoshiyuki Tasaka, Nobuo Ishihara
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Patent number: 6919385Abstract: An energy-ray curing resin composition comprising a photopolymerizable resin component which can be cured by irradiation with an energy ray, a photopolymerization initiator component which makes it possible to cure the above photopolymerizable resin component by irradiation with an energy ray and a curing agent component used for curing at least one of the above photopolymerizable resin components by a method other than irradiation with an energy ray. To provide a high curability energy-ray curing resin composition which has a very high curing capacity as compared with those of conventional energy-ray curing resins and which is simple and has a high design freedom.Type: GrantFiled: February 4, 2003Date of Patent: July 19, 2005Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Noriya Hayashi
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Publication number: 20050072522Abstract: Provided are a matrix resin composition for fiber reinforced plastic, which comprises a bifunctional or trifunctional liquid diisocyanate, a bifunctional polyol and a bifunctional chain extender containing an active hydrogen group, with a molar ratio of the functional groups of the diisocyanate, polyol and chain extender of 5.0 to 1.0:1.0:4.0 to 0, respectively; and a process for producing fiber reinforced plastic, which comprises impregnating a fibrous material with the resin composition and then curing. The present invention makes it possible to produce a molding containing fibers densely, having excellent strength and inflatability, in the production of an FRP molding by using a thermosetting resin having an extended pot life.Type: ApplicationFiled: October 31, 2002Publication date: April 7, 2005Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Noriya Hayashi, Shunichi Hayashi, Norio Miwa, Toshikatsu Nohara
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Patent number: 6861455Abstract: A composition for a bulkhead of a thin display panel which is a mixed composition comprising a powder of glass or ceramic for molding a bulkhead of a thin display panel or a part thereof and a binder being an organic additive, wherein the above organic additive contains 15 to 50% by weight of a resin composition which generates heat energy by irradiation with an energy ray and which can be cured by energy coming from an energy ray source or the resulting heat energy. To provide a composition for a bulkhead which is used for molding a bulkhead constituting a discharge display cell of a thin display panel or mending a broken part thereof and which is improved in curability.Type: GrantFiled: January 31, 2001Date of Patent: March 1, 2005Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Noriya Hayashi
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Publication number: 20040210027Abstract: Provided are a shape memory polymer composition, which comprises a bifunctional isocyanate and/or a trifunctional isocyanate, and a polyol having an average molecular weight of from 100 to 550, with a molar ratio in terms of functional groups of isocyanate:polyol=0.9 to 1.1:1.0; FRP having the shape memory polymer and a fibrous material; and a production process of the FRP comprising impregnating the fibrous material with, as a matrix resin, the shape memory polymer composition and curing. According to the present invention, the shape memory polymer composition has an extended pot life and FRP has excellent inflatability.Type: ApplicationFiled: March 15, 2004Publication date: October 21, 2004Applicant: MITSUBISHI HEAVY INDUSTRIES. LTDInventors: Noriya Hayashi, Shunichi Hayashi, Norio Miwa, Toshikatsu Nohara
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Publication number: 20040198923Abstract: Provided are a prepreg for FRP (fiber reinforced plastic) which comprises a matrix resin composition containing a bifunctional isocyanate and/or a trifunctional isocyanate, a polyol and a bifunctional chain extender having two active hydrogen groups at a molar ratio, as a functional group, of isocyanate:polyol:chain extender=5.0 to 1.0:1.0:4.0 to 0, or containing a bifunctional isocyanate and/or a trifunctional isocyanate and a polyol at a molar ratio, as a functional group, of liquid isocyanate:polyol=0.9 to 1.1:1.0; and a fibrous material; and a production process of the prepreg. According to the present invention, the prepreg for FRP has a sufficient pot life and permits convenient production of an FRP molding.Type: ApplicationFiled: March 23, 2004Publication date: October 7, 2004Applicant: MITSUBISHI HEAVY INDUSTRIES. LTDInventors: Noriya Hayashi, Shunichi Hayashi, Norio Miwa, Toshikatsu Nohara