Patents by Inventor Keiji Tsukahara
Keiji Tsukahara 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: 11535004Abstract: A soundproofing material including a porous body having a cell structure and including inorganic fibers other than asbestos, wherein an average cell diameter is more than 300 ?m and 1000 ?m or less, a bulk density is 0.007 to 0.024 g/cm3, and a flow resistivity is 170,000 to 2,000,000 Ns/m4.Type: GrantFiled: May 24, 2017Date of Patent: December 27, 2022Assignee: NICHIAS CORPORATIONInventors: Kazutaka Murayama, Keiji Tsukahara, Hikari Sasaki, Yuuma Tomitsuka, Tatsuro Miki, Daisuke Ando
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Publication number: 20220259395Abstract: A porous body including an inorganic fiber and an organic binder, wherein the average fiber diameter of the inorganic fiber is 2.0 ?m or less, the amount of the inorganic fiber is 90% by mass or more, the amount of the organic binder is 0.5% by mass or more and 10% by mass or less, the organic binder contains an elastomer, and the bulk density of the porous body is 30 kg/m3 or less.Type: ApplicationFiled: July 14, 2020Publication date: August 18, 2022Applicant: NICHIAS CORPORATIONInventors: Hikari SASAKI, Kei TSUKADA, Kazutaka MURAYAMA, Keiji TSUKAHARA, Kazuki SOEDA, Hironari FUJIKI
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Publication number: 20190329524Abstract: A soundproofing material including a porous body having a cell structure and including inorganic fibers other than asbestos, wherein an average cell diameter is more than 300 ?m and 1000 ?m or less, a bulk density is 0.007 to 0.024 g/cm3, and a flow resistivity is 170,000 to 2,000,000 Ns/m4.Type: ApplicationFiled: May 24, 2017Publication date: October 31, 2019Applicant: NICHIAS CORPORATIONInventors: Kazutaka MURAYAMA, Keiji TSUKAHARA, Hikari SASAKI, Yuuma TOMITSUKA, Tatsuro MIKI, Daisuke ANDO
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Patent number: 9593798Abstract: A novel pipe cover is disclosed that can suppress thermal deterioration in a member that is positioned opposite to the pipe, and can control the temperature inside the pipe within a given range, even when a high-temperature fluid circulates through the pipe. The pipe cover is used to cover the outer periphery of a pipe, and includes a base that is formed of a tubular heat insulator, and a surface member that covers the outer surface of the base, a heat radiation section and a heat radiation-suppressing section being provided on the outer surface of the surface member, and the emissivity of the heat radiation section at a wavelength of 2 to 15 ?m being higher than the emissivity of the heat radiation-suppressing section at a wavelength of 2 to 15 ?m.Type: GrantFiled: July 10, 2012Date of Patent: March 14, 2017Assignee: NICHIAS CORPORATIONInventors: Takahiro Niwa, Akinao Hiraoka, Yoshifumi Fujita, Keiji Tsukahara, Masatake Onodera, Daisuke Ando, Isami Abe
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Publication number: 20140144539Abstract: A novel pipe cover is disclosed that can suppress thermal deterioration in a member that is positioned opposite to the pipe, and can control the temperature inside the pipe within a given range, even when a high-temperature fluid circulates through the pipe. The pipe cover is used to cover the outer periphery of a pipe, and includes a base that is formed of a tubular heat insulator, and a surface member that covers the outer surface of the base, a heat radiation section and a heat radiation-suppressing section being provided on the outer surface of the surface member, and the emissivity of the heat radiation section at a wavelength of 2 to 15 ?m being higher than the emissivity of the heat radiation-suppressing section at a wavelength of 2 to 15 ?m.Type: ApplicationFiled: July 10, 2012Publication date: May 29, 2014Applicant: NICHIAS CORPORATIONInventors: Takahiro Niwa, Akinao Hiraoka, Yoshifumi Fujita, Keiji Tsukahara, Masatake Onodera, Daisuke Andoo, Isami Abe
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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: 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: 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