Patents by Inventor Shigeru Nakama
Shigeru Nakama 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: 10793465Abstract: A base material for a disk roll containing a layered silicate, in which the layered silicate is constituted to contain two or more kinds of minerals having an interlayer distance exceeding 10 angstroms. A base material for a disk roll is excellent in the compressive strength and wear resistance thereby.Type: GrantFiled: July 12, 2017Date of Patent: October 6, 2020Assignee: NICHIAS CORPORATIONInventors: Ryo Tanaka, Shigeru Nakama, Kazuhisa Watanabe
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Publication number: 20190225531Abstract: A base material for a disk roll containing a layered silicate, in which the layered silicate is constituted to contain two or more kinds of minerals having an interlayer distance exceeding 10 angstroms. A base material for a disk roll is excellent in the compressive strength and wear resistance thereby.Type: ApplicationFiled: July 12, 2017Publication date: July 25, 2019Applicant: NICHIAS CORPORATIONInventors: Ryo TANAKA, Shigeru NAKAMA, Kazuhisa WATANABE
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Patent number: 10329487Abstract: A heat-absorbing material including particles including a magnesium phosphate hydrate and a binder.Type: GrantFiled: February 14, 2014Date of Patent: June 25, 2019Assignee: NICHIAS CORPORATIONInventors: Shigeru Nakama, Norihiro Kihara, Taichi Shiratori, Daisuke Tsumura
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Patent number: 10215325Abstract: A thermal insulation material can suitably be used as a thermal insulation material for a hot press, a rubber vulcanizing machine, and an injection molding machine, a casing for an induction furnace, and the like, and exhibits good workability, excellent heat resistance, excellent mechanical strength, excellent toughness, excellent working accuracy, excellent thickness accuracy, and the like. The thermal insulation material is produced by hot-pressing a plurality of prepregs in a state in which the plurality of prepregs are stacked, each of the plurality of prepregs being obtained by impregnating heat-resistant paper with a thermosetting resin, the thermal insulation material including 32 to 64 mass % of a fibrous material and 36 to 68 mass % of the thermosetting resin.Type: GrantFiled: June 3, 2014Date of Patent: February 26, 2019Assignee: NICHIAS CORPORATIONInventors: Yoshiro Kurimoto, Shigeru Nakama, Kazuhisa Watanabe
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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: 20170009139Abstract: A heat-absorbing material including particles including a magnesium phosphate hydrate and a binder.Type: ApplicationFiled: February 14, 2014Publication date: January 12, 2017Inventors: Shigeru Nakama, Norihiro Kihara, Taichi Shiratori, Daisuke Tsumura
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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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Publication number: 20160123519Abstract: A thermal insulation material can suitably be used as a thermal insulation material for a hot press, a rubber vulcanizing machine, and an injection molding machine, a casing for an induction furnace, and the like, and exhibits good workability, excellent heat resistance, excellent mechanical strength, excellent toughness, excellent working accuracy, excellent thickness accuracy, and the like. The thermal insulation material is produced by hot-pressing a plurality of prepregs in a state in which the plurality of prepregs are stacked, each of the plurality of prepregs being obtained by impregnating heat-resistant paper with a thermosetting resin, the thermal insulation material including 32 to 64 mass % of a fibrous material and 36 to 68 mass % of the thermosetting resin.Type: ApplicationFiled: June 3, 2014Publication date: May 5, 2016Applicant: NICHIAS CORPORATIONInventors: Yoshiro Kurimoto, Shigeru Nakama, Kazuhisa Watanabe
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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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Patent number: 8066146Abstract: Disclosed are an insulated container in which a high-performance vacuum heat insulating material is formed around a three-dimensional container and in which heat loss is minimized, and a method of manufacturing the insulated container. An insulated container for heat-insulation storage of a liquid has a resin inner container equipped with liquid flow inlet/outlet portions, an interior member and an exterior member which accommodate the inner container and around which a gas barrier layer is formed, and a heat insulation space which is defined between the interior member and the exterior member and which is held in a pressure-reduced state, with a heat insulating material being sealed therein. Further, flange members are fitted onto the flow inlet/outlet portions, lower flange surfaces of the flange members are bonded to the interior member, and upper flange surfaces thereof are bonded to the exterior member.Type: GrantFiled: August 4, 2008Date of Patent: November 29, 2011Assignee: Nichias CorporationInventors: Keiji Tsukahara, Toshihiko Kumasaka, Atsushi Omura, Shigeru Nakama, Shu Morikawa
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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: 20100326617Abstract: An intermediate stalk (10) that is used for a low-pressure die-casting apparatus includes a metal covering material (2), and a precast refractory material (1) that is removably fitted into the metal covering material (2), an air release opening (3) being formed between the metal covering material (2) and the precast refractory material (1) when viewed from above. According to the present invention, an intermediate stalk that allows water to be sufficiently released from the refractory heat insulator during heating, does not explode, does not produce cracks in the refractory heat insulator due to the difference in coefficient of thermal expansion between the refractory heat insulator and the metal covering material, and allows easy replacement of the refractory heat insulator, a method of producing the same, and a low-pressure die-casting apparatus can be provided.Type: ApplicationFiled: June 12, 2009Publication date: December 30, 2010Inventors: Shigeru Nakama, Norihiro Kihara, Munehiko Fukase, Yoshiyuki Ito, Hirotaka Ide, Kohei Fujita
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Publication number: 20100093513Abstract: A refractory composition having excellent erosion resistance and infiltration resistance to a molten metal and a formed article and a sintered article produced from the refractory composition are provided. The refractory composition comprises for 100 parts by mass of at least one compound selected from the group consisting of silicon nitride, boron nitride, and silicon carbide, 5 to 40 parts by mass of at least one compound selected from the group consisting of calcium fluoride, magnesium fluoride, calcium oxide or its precursor, magnesium oxide or its precursor, barium oxide or its precursor, and barium sulfate. The content of the silicon nitride, boron nitride, and silicon carbide in the composition is 20 mass % or more.Type: ApplicationFiled: January 13, 2009Publication date: April 15, 2010Inventors: Shigeru Nakama, Norihiro Kihara, Munehiko Fukase
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Publication number: 20090039089Abstract: Disclosed are an insulated container in which a high-performance vacuum heat insulating material is formed around a three-dimensional container and in which heat loss is minimized, and a method of manufacturing the insulated container. An insulated container for heat-insulation storage of a liquid has a resin inner container equipped with liquid flow inlet/outlet portions, an interior member and an exterior member which accommodate the inner container and around which a gas barrier layer is formed, and a heat insulation space which is defined between the interior member and the exterior member and which is held in a pressure-reduced state, with a heat insulating material being sealed therein. Further, flange members are fitted onto the flow inlet/outlet portions, lower flange surfaces of the flange members are bonded to the interior member, and upper flange surfaces thereof are bonded to the exterior member.Type: ApplicationFiled: August 4, 2008Publication date: February 12, 2009Applicant: NICHIAS CORPORATIONInventors: Keiji Tsukahara, Toshihiko Kumasaka, Atsushi Omura, Shigeru Nakama, Shu Morikawa
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Publication number: 20080193788Abstract: The present invention provides a heat insulating material comprising a heat insulating formed body and a sheet-shaped porous material bonded to at least a part of the surface of the heat insulating formed body with a binder, wherein the binder comprises: inorganic particles having an average particle size of 0.05 to 50 ?m; and at least one of a hydrolysate of a metal alkoxide compound and a sol of a metal oxide. Also, a method for producing the heat insulating material is disclosed.Type: ApplicationFiled: February 13, 2008Publication date: August 14, 2008Applicant: NICHIAS CORPORATIONInventor: Shigeru Nakama
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Patent number: 6666939Abstract: A tubular member for an oil application device is formed separately and is fitted in such a manner as to cover a peripheral face of a porous cylindrical oil retaining member. The tubular member for the oil application device has a multi-layer structure including an inner layer and an outermost layer. The inner layer is a fibrous layer, and the outermost layer is a porous film. The porous cylindrical oil retaining member can be easily covered with, fitted with, and removed of the member for the oil application device, which is made from a fibrous layer such as a felt or from a porous film such as a PTFE film.Type: GrantFiled: February 21, 2003Date of Patent: December 23, 2003Assignee: Nichias Co., Ltd.Inventors: Kohichi Kimura, Osamu Horiuchi, Yousuke Suganuma, Shigeru Nakama
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Publication number: 20030161978Abstract: A tubular member for an oil application device is formed separately and is fitted in such a manner as to cover a peripheral face of a porous cylindrical oil retaining member. The tubular member for the oil application device has a multi-layer structure including an inner layer and an outermost layer. The inner layer is a fibrous layer, and the outermost layer is a porous film. The porous cylindrical oil retaining member can be easily covered with, fitted with, and removed of the member for the oil application device, which is made from a fibrous layer such as a felt or from a porous film such as a PTFE film.Type: ApplicationFiled: February 21, 2003Publication date: August 28, 2003Applicant: Nichias Co., Ltd.Inventors: Kohichi Kimura, Osamu Horiuchi, Yousuke Suganuma, Shigeru Nakama
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Patent number: 6579813Abstract: An oil application apparatus comprising a porous oil-holding member, a heat-resisting fiber felt, and an oil application amount control layer. The porous oil-holding member is impregnated with silicone oil. The heat-resisting fiber felt has a bending resistance in the range of 30 to 90 mm and is provided on an oil application side of the porous oil-holding member. The oil application amount control layer is provided on the oil application side of the heat-resisting fiber felt.Type: GrantFiled: July 5, 2000Date of Patent: June 17, 2003Assignee: Nichias CorporationInventors: Kohichi Kimura, Tatuo Takagi, Shigeru Nakama, Isami Abe