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).

  • Patent number: 11535004
    Abstract: 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: Grant
    Filed: May 24, 2017
    Date of Patent: December 27, 2022
    Assignee: NICHIAS CORPORATION
    Inventors: Kazutaka Murayama, Keiji Tsukahara, Hikari Sasaki, Yuuma Tomitsuka, Tatsuro Miki, Daisuke Ando
  • Publication number: 20220259395
    Abstract: 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: Application
    Filed: July 14, 2020
    Publication date: August 18, 2022
    Applicant: NICHIAS CORPORATION
    Inventors: Hikari SASAKI, Kei TSUKADA, Kazutaka MURAYAMA, Keiji TSUKAHARA, Kazuki SOEDA, Hironari FUJIKI
  • Publication number: 20190329524
    Abstract: 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: Application
    Filed: May 24, 2017
    Publication date: October 31, 2019
    Applicant: NICHIAS CORPORATION
    Inventors: Kazutaka MURAYAMA, Keiji TSUKAHARA, Hikari SASAKI, Yuuma TOMITSUKA, Tatsuro MIKI, Daisuke ANDO
  • Patent number: 9593798
    Abstract: 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: Grant
    Filed: July 10, 2012
    Date of Patent: March 14, 2017
    Assignee: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Akinao Hiraoka, Yoshifumi Fujita, Keiji Tsukahara, Masatake Onodera, Daisuke Ando, Isami Abe
  • Publication number: 20140144539
    Abstract: 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: Application
    Filed: July 10, 2012
    Publication date: May 29, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Takahiro Niwa, Akinao Hiraoka, Yoshifumi Fujita, Keiji Tsukahara, Masatake Onodera, Daisuke Andoo, Isami Abe
  • Patent number: 8066146
    Abstract: 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: Grant
    Filed: August 4, 2008
    Date of Patent: November 29, 2011
    Assignee: Nichias Corporation
    Inventors: Keiji Tsukahara, Toshihiko Kumasaka, Atsushi Omura, Shigeru Nakama, Shu Morikawa
  • Publication number: 20090039089
    Abstract: 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: Application
    Filed: August 4, 2008
    Publication date: February 12, 2009
    Applicant: NICHIAS CORPORATION
    Inventors: Keiji Tsukahara, Toshihiko Kumasaka, Atsushi Omura, Shigeru Nakama, Shu Morikawa
  • Publication number: 20080237244
    Abstract: 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: Application
    Filed: March 19, 2008
    Publication date: October 2, 2008
    Applicant: NICHIAS CORPORATION
    Inventors: Keiji Tsukahara, Takahiro Ohmura, Kunihiko Yano
  • Publication number: 20080078771
    Abstract: 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: Application
    Filed: September 21, 2007
    Publication date: April 3, 2008
    Applicant: NICHIAS CORPORATION
    Inventors: Keiji Tsukahara, Kunihiko Yano, Toshihiko Kumasaka, Takahiro Ohmura, Atsushi Omura