Patents by Inventor Takashi Kikkawa

Takashi Kikkawa 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).

  • Publication number: 20240053205
    Abstract: The invention provides a management system of coal and/or steelmaking dust being managed outdoors. The management system includes an imaging unit, a threshold information acquiring unit, and a determining unit. The imaging unit is configured to perform imaging of heat distribution image information indicating a heat distribution image of a surface layer of a pile of the coal and/or steelmaking dust from a position where imaging of an entire surface layer of the pile can be performed. The threshold information acquiring unit is configured to acquire threshold information indicating a threshold of a temperature of the surface layer of the pile. The determining unit is configured to determine heat generation of the pile based on the heat distribution image information and the threshold information.
    Type: Application
    Filed: July 16, 2021
    Publication date: February 15, 2024
    Applicants: KURITA WATER INDUSTRIES LTD., Hitachi, Ltd.
    Inventors: Takashi KIKKAWA, Naoki IKEGAWA, Takuji KURINO, Koh TAKANOSE, Daisuke TAKA, Emi KAIYA
  • Publication number: 20230375291
    Abstract: The present invention provides a technique for improving the cooling performance of a cooling tower in a circulating cooling water system having the cooling tower. The present invention provides a method for improving cooling performance of a cooling tower in a circulating cooling water system having the cooling tower, wherein cooling water used in the circulating cooling water system is cooling water to which an agent including a surfactant is added, and the cooling water satisfies (a) a dynamic contact angle of 55° or less and (b) a bubble bulkiness of 250 mL or less.
    Type: Application
    Filed: October 6, 2021
    Publication date: November 23, 2023
    Applicant: KURITA WATER INDUSTRIES LTD.
    Inventors: Takanori YOSHINO, Takashi KIKKAWA, Kazuhisa FUJITA, Natsumi TANIYAMA, Marina YANAGIDA
  • Publication number: 20230273341
    Abstract: The invention provides a management system of a material which is a steelmaking raw material and/or a fuel for power generation and which is managed outdoors. The management system includes a moisture content information acquiring unit, a weather information acquiring unit, and a predicting unit. The moisture content information acquiring unit is configured to acquire moisture content information indicating a moisture content contained in the material. The weather information acquiring unit is configured to acquire weather information indicating outdoor meteorological phenomena forecasted for the future. The predicting unit is configured to predict a moisture content contained in the material at a specific time point in the future based on the moisture content information and the weather information.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 31, 2023
    Applicants: KURITA WATER INDUSTRIES LTD., Hitachi, Ltd.
    Inventors: Takashi KIKKAWA, Naoki IKEGAWA, Takuji KURINO, Koh TAKANOSE, Daisuke TAKA, Emi KAIYA
  • Publication number: 20230273342
    Abstract: The invention provides a management system of a material which is a steelmaking raw material and/or a fuel for power generation and which is managed outdoors. The management system includes an information managing unit, a weather information acquiring unit, and an assessing unit. The information managing unit is configured to manage, for each of piles of the material, powder dust prevention processing information including a presence or absence of existing powder dust prevention processing with respect to the material and a type of the powder dust prevention processing. The weather information acquiring unit is configured to acquire weather information indicating outdoor meteorological phenomena forecasted for the future. The assessing unit is configured to assess an occurrence of powder dust for each of the piles based on the powder dust prevention processing information and the weather information.
    Type: Application
    Filed: July 16, 2021
    Publication date: August 31, 2023
    Applicants: KURITA WATER INDUSTRIES LTD., Hitachi, Ltd.
    Inventors: Takashi KIKKAWA, Naoki IKEGAWA, Takuji KURINO, Koh TAKANOSE, Daisuke TAKA, Emi KAIYA
  • Patent number: 11613716
    Abstract: Provided is a binder for a coal-containing formed product, which contains a macromolecular polymer having an intrinsic viscosity of 2.0 dl/g or higher.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: March 28, 2023
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventor: Takashi Kikkawa
  • Publication number: 20210292674
    Abstract: Provided is an antioxidant capable of coating the surface layer of a coal deposit (coal pile) and further reducing the amount of oxygen permeation into the inside of the deposit. The present invention is an antioxidant for coal, containing an oil-in-water type resin emulsion having an average particle size of emulsion particles of 0.3 ?m or more and 1.0 ?m or less. The antioxidant preferably further contains a surfactant. The worker sprays the above antioxidant on the coal deposit. This forms a consolidated layer on the surface of the coal deposit that is highly effective in suppressing oxygen permeation. Therefore, the permeation of oxygen in the air atmosphere into the inside of the coal deposit is blocked, thus preventing the oxidation of the coal.
    Type: Application
    Filed: April 11, 2019
    Publication date: September 23, 2021
    Applicant: KURITA WATER INDUSTRIES LTD.
    Inventors: Masaki MIYAHARA, Youichi HIRANO, Takashi KIKKAWA
  • Publication number: 20210155866
    Abstract: Provided is a binder for a coal-containing formed product, which contains a macromolecular polymer having an intrinsic viscosity of 2.0 dl/g or higher.
    Type: Application
    Filed: March 25, 2019
    Publication date: May 27, 2021
    Applicant: KURITA WATER INDUSTRIES LTD.
    Inventor: Takashi KIKKAWA
  • Patent number: 8142904
    Abstract: The present invention relates to a copper-based sintered slide member comprising 0.5 to 20% by weight of tin, 0.1 to 35% by weight of manganese, 2 to 25% by weight of a solid lubricant and the balance essentially consisting of copper; and a multilayer copper-based sintered slide member comprising a copper-based alloy sintered layer and a metal backing plate which are formed into an integral multilayer structure, wherein the copper-based alloy sintered layer comprises 0.5 to 20% by weight of tin, 0.1 to 35% by weight of manganese, 2 to 25% by weight of a solid lubricant and the balance essentially consisting of copper. The above slide members are in the form of a lead-free copper-based sintered slide member.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: March 27, 2012
    Assignee: Oiles Corporation
    Inventors: Shoichiro Iwahashi, Kazuo Kato, Takehiro Shirosaki, Takashi Kikkawa
  • Publication number: 20100279139
    Abstract: The present invention relates to a copper-based sintered slide member comprising 0.5 to 20% by weight of tin, 0.1 to 35% by weight of manganese, 2 to 25% by weight of a solid lubricant and the balance essentially consisting of copper; and a multilayer copper-based sintered slide member comprising a copper-based alloy sintered layer and a metal backing plate which are formed into an integral multilayer structure, wherein the copper-based alloy sintered layer comprises 0.5 to 20% by weight of tin, 0.1 to 35% by weight of manganese, 2 to 25% by weight of a solid lubricant and the balance essentially consisting of copper. The above slide members are in the form of a lead-free copper-based sintered slide member.
    Type: Application
    Filed: January 15, 2007
    Publication date: November 4, 2010
    Inventors: Shoichiro Iwahashi, Kazuo Kato, Takehiro Shirosaki, Takashi Kikkawa
  • Patent number: 6440354
    Abstract: A thermoforming apparatus includes a female die and a movable plug for thermoforming a softened thermoplastic resin sheet. The female die includes a rim forming recess in the shape of a bowl-shaped recess, communicating with a bottom opening and forming a bottom wall of the bowl, an outer wall, a bottom wall and an inner wall of a rim of the bottom, and a bottom plate movable forward and backward relative to the rim forming recess. The softened thermoplastic resin sheet is thrust by the plug while the bottom plate is held at a first stop position. The thermoplastic resin sheet is brought into contact with an inner circumferential surface of the bowl-shaped recess and then the bottom plate is moved to a second stop position so that a rim is formed.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 27, 2002
    Assignee: Kabushiki Kaisha Asano Kenkyusho
    Inventors: Toshihiro Takai, Kenichi Mizoguchi, Akio Yoshikoshi, Takashi Kikkawa, Tatsushi Maeda
  • Patent number: 6315150
    Abstract: A bowl-shaped container has a rim of a bottom and the rim is hollow. The container is made of a thermoplastic resin sheet, and wherein the hollow rim is formed by folding the thermoplastic resin sheet including a side wall surface and a bottom wall surface continuous with each other into the shape of a bag and by welding the sheet at the wall surface sides. The body of the container may have a plurality of ribs protruding outward and no slit-like recess in its inner circumferential face. The ribs are formed by thrusting the thermoplastic resin sheet into a plurality of grooves formed in a forming female die.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: November 13, 2001
    Assignee: Kabushiki Kaisha Asano Kenkyusho
    Inventors: Toshihiro Takai, Kenichi Mizoguchi, Akio Yoshikoshi, Takashi Kikkawa
  • Patent number: 5106498
    Abstract: A filter press according to the present invention comprises tension bearing means which are mounted on the filter plates respectively and which prevent movements of the forward ends of the filter cloths to bear the tensions for drawing out the forward ends of the filter cloths from the cloth reservoir means when the distance between the filter plates is decreased to bring the filter plates adjacent to each other into contact with each other, so that the tensions of the filter cloths are not applied to the drawing means when the distance between the filter plates is decreased. Therefore, attitudes of the filter plates are not changed by the tensions of the filter cloths and the filter plates can be brought into intimate contact with each other with constant pressure therebetween.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: April 21, 1992
    Assignee: Tsukishima Kikai Co., Ltd.
    Inventors: Noboru Imasaka, Shinzi Ishii, Shinzi Kaneko, Takashi Kikkawa
  • Patent number: 5069874
    Abstract: Disclosed herein is a wear-resistance alloy comprising 10 to 40 wt % of Zn, 3 to 10 wt % of Al, 0.1 to 4 wt % of Cr and the balance Cu.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: December 3, 1991
    Assignee: Oiles Corporation
    Inventors: Takehiro Shirosaki, Takashi Kikkawa, Hirotaka Toshima
  • Patent number: 5000915
    Abstract: Disclosed herein is a wear-resistance alloy consisting essentially of about 10 to 40 wt % of Zn, about 3 to 10 wt % of Al, about 0.1 to 4 wt % of Cr, and optionally not more than about 8 wt % of Mn and not more than about 2 wt % of Ni, with the balance, Cu.
    Type: Grant
    Filed: June 22, 1989
    Date of Patent: March 19, 1991
    Assignee: Oiles Corporation
    Inventors: Takehiro Shirosaki, Takashi Kikkawa, Hirotaka Toshima
  • Patent number: 4994235
    Abstract: Disclosed herein is a wear-resistance aluminum bronze alloy comprising 4 to 15 wt % of Al, 0.1 to 10 wt % of Cr and the balance Cu, and optionally containing not more than 6 wt % of Ni and not more than 15 wt % of Mn.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: February 19, 1991
    Assignee: Oiles Corporation
    Inventors: Takehiro Shirosaki, Takashi Kikkawa, Hirotaka Toshima
  • Patent number: 4626277
    Abstract: A plant growth regulator comprising, as its active component, one or more compounds selected from the group consisting of [+]-hexylitaconic acid, and the dihydro derivative and lower alkyl monoesters thereof is effective for growth regulation of plants.
    Type: Grant
    Filed: June 6, 1985
    Date of Patent: December 2, 1986
    Assignee: Agro-Kanesho Co., Ltd.
    Inventors: Akinori Suzuki, Akira Isogai, Suong B. Hyeon, Takashi Kikkawa, Shinzo Someya