Patents by Inventor Yohei Koyama

Yohei Koyama 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: 20240102688
    Abstract: An indoor unit included in an air conditioner that includes an outdoor unit includes a power receiving circuit (PR2), a low-frequency transmission and reception circuit as a first reception circuit, a high-frequency transmission and reception circuit as a transmission and reception circuit, and an inner-controller. The low-frequency transmission and reception circuit receives a current signal transmitted from an outdoor unit by using a current loop formed by a power line included in power supply wiring. For a first communication state in which physical connection between with the outdoor unit is recognized and a second communication state in which communication for operation of the air conditioner is performed between with the outdoor unit, the inner-controller selects use of the low-frequency transmission and reception circuit and the high-frequency transmission and reception circuit in the first communication state and the second communication state.
    Type: Application
    Filed: November 30, 2023
    Publication date: March 28, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryosuke YAMAMOTO, Yohei KOYAMA, Youta KATOU, Kazuaki ANDO, Taiki KOGAWA, Shin HIGASHIYAMA, Kosuke HOTTA, Shinichi ISHIZEKI, Toshiaki KUMATA
  • Publication number: 20230365741
    Abstract: A water-dispersible polyisocyanate contains an isocyanate group and a sulfone group. The water-dispersible polyisocyanate contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component. The polyisocyanate component contains a first polyisocyanate containing pentamethylene diisocyanate and a second polyisocyanate containing polyisocyanate having 6 or more carbon atoms. The hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound. The first polyisocyanate is contained in an amount of 40% by mass or more and 90% by mass or less relative to the total amount of the first polyisocyanate and the second polyisocyanate.
    Type: Application
    Filed: September 29, 2021
    Publication date: November 16, 2023
    Inventors: Yuta USUI, Koji TAKAMATSU, Kazuyuki FUKUDA, Yohei KOYAMA, Tatsuya SHIBATA
  • Publication number: 20230357485
    Abstract: A water-dispersible polyisocyanate contains an isocyanate group and a sulfone group. The water-dispersible polyisocyanate contains a reaction product of a polyisocyanate component and a hydrophilic active hydrogen component. The polyisocyanate component contains a bis(isocyanatomethyl)cyclohexane derivative. The hydrophilic active hydrogen component contains a sulfone group-containing active hydrogen compound. The bis(isocyanatomethyl)cyclohexane derivative contains an allophanate derivative and an isocyanurate derivative. The allophanate derivative is contained in an amount of 25% by mass or more and 75% by mass or less relative to the total amount of the allophanate derivative and the isocyanurate derivative.
    Type: Application
    Filed: September 29, 2021
    Publication date: November 9, 2023
    Inventors: Yuta USUI, Koji TAKAMATSU, Kazuyuki FUKUDA, Yohei KOYAMA, Tatsuya SHIBATA
  • Patent number: 11528966
    Abstract: This molded surface fastener includes: a base portion; right and left outer wall portions arranged on the upper surfaces of the base portion; a plurality of engaging elements arranged between the right and left outer wall portions; and right and left magnetic wall portions arranged between the outer wall portions and the engaging elements. This molded surface fastener is molded by melting and integrating first synthetic resin and second synthetic resin that contains magnetic particles. At least each upper end part of the outer wall portions is formed only of the first synthetic resin, while at least each upper end part of the magnetic wall portions is formed only of the second synthetic resin. Consequently, the right and left magnetic wall portions can be formed into predetermined shapes in a stable manner.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: December 20, 2022
    Assignee: YKK Corporation
    Inventors: Zhiyu Ren, Takayuki Matsui, Yohei Koyama, Jun Hashizume
  • Publication number: 20210380804
    Abstract: A polycarbodiimide composition is obtained by subjecting a reaction product of a straight-chain aliphatic diisocyanate and alcohols to carbodiimidization, and the alcohols include a polyol and a monool; in the alcohols, a mole ratio (hydroxyl group derived from polyol/hydroxyl group derived from monool) of the amount of hydroxyl groups derived from the polyol to the amount of hydroxyl groups derived from the monool is below 2.0; and a carbodiimide equivalent of the polycarbodiimide composition is 300 g/mol or more and below 550 g/mol.
    Type: Application
    Filed: August 5, 2019
    Publication date: December 9, 2021
    Inventors: Tatsuya YAMASHITA, Yohei KOYAMA, Hirokazu MORITA, Kazuyuki FUKUDA
  • Publication number: 20210093053
    Abstract: This molded surface fastener includes: a base portion; right and left outer wall portions arranged on the upper surfaces of the base portion; a plurality of engaging elements arranged between the right and left outer wall portions; and right and left magnetic wall portions arranged between the outer wall portions and the engaging elements. This molded surface fastener is molded by melting and integrating first synthetic resin and second synthetic resin that contains magnetic particles. At least each upper end part of the outer wall portions is formed only of the first synthetic resin, while at least each upper end part of the magnetic wall portions is formed only of the second synthetic resin. Consequently, the right and left magnetic wall portions can be formed into predetermined shapes in a stable manner.
    Type: Application
    Filed: February 13, 2018
    Publication date: April 1, 2021
    Inventors: Zhiyu Ren, Takayuki Matsui, Yohei Koyama, Jun Hashizume
  • Patent number: 10100220
    Abstract: Disclosed is a water-based coating composition having as a base resin, a core/shell type emulsion resin comprising an acrylic resin as the core portion and a polyurethane resin as the shell portion, wherein the mass ratio of the core portion and the shell portion in the aforementioned core/shell type emulsion resin is between 20/80 and 80/20, the aforementioned acrylic resin has a hydroxyl group value of 40 to 140 mg KOH/g and an acid value of 0 to 10 mg KOH/g, the aforementioned polyurethane resin has a hydroxyl group value of 20 to 80 mg KOH/g and an acid value of 10 to 60 mg KOH/g, and the total mass ratio of constituent units derived from dibasic acids and/or dihydric alcohols having 10 to 60 carbon atoms in the aforementioned polyurethane resin is 10 to 50 mass % relative to the solid resin content of the aforementioned polyurethane resin.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: October 16, 2018
    Assignee: BASF Japan, Ltd.
    Inventors: Yohei Koyama, Souichi Mori, Hisayuki Nakashima
  • Publication number: 20180022955
    Abstract: Disclosed is a water-based coating composition having as a base resin, a core/shell type emulsion resin comprising an acrylic resin as the core portion and a polyurethane resin as the shell portion, wherein the mass ratio of the core portion and the shell portion in the aforementioned core/shell type emulsion resin is between 20/80 and 80/20, the aforementioned acrylic resin has a hydroxyl group value of 40 to 140 mg KOH/g and an acid value of 0 to 10 mg KOH/g, the aforementioned polyurethane resin has a hydroxyl group value of 20 to 80 mg KOH/g and an acid value of 10 to 60 mg KOH/g, and the total mass ratio of constituent units derived from dibasic acids and/or dihydric alcohols having 10 to 60 carbon atoms in the aforementioned polyurethane resin is 10 to 50 mass % relative to the solid resin content of the aforementioned polyurethane resin.
    Type: Application
    Filed: June 14, 2012
    Publication date: January 25, 2018
    Applicant: BASF JAPAN LTD.
    Inventors: Yohei Koyama, Souichi Mori, Hisayuki Nakashima
  • Patent number: 9856397
    Abstract: An multilayer coated film comprises a waterborne intermediate-coat coating material and a waterborne basecoat coating material both containing a core/shell type resin emulsion (A) in which the core portion is an acrylic resin (A1) and the shell portion is a polyurethane resin (A2), a water-soluble or water-dispersible polyurethane resin (B), a water-soluble or water-dispersible polyester resin (C), and a melamine resin (D), and, based on the combined resin solids content by mass of aforesaid components (A) to (C), the solids content by mass of component (A) is 5-25 mass %, the solids content by mass of component (B) is 45-65 mass %, the solids content by mass of component (C) is 20-40 mass %, and the solids content by mass of component (D) is 35-45 mass %.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: January 2, 2018
    Assignees: BASF Coatings GmbH, Nissan Motor Co., Ltd.
    Inventors: Yohei Koyama, Yasufumi Honda, Souichi Mori, Hisayuki Nakashima, Hironori Tsutsui
  • Publication number: 20160083617
    Abstract: An multilayer coated film comprises a waterborne intermediate-coat coating material and a waterborne basecoat coating material both containing a core/shell type resin emulsion (A) in which the core portion is an acrylic resin (A1) and the shell portion is a polyurethane resin (A2), a water-soluble or water-dispersible polyurethane resin (B), a water-soluble or water-dispersible polyester resin (C), and a melamine resin (D), and, based on the combined resin solids content by mass of aforesaid components (A) to (C), the solids content by mass of component (A) is 5-25 mass %, the solids content by mass of component (B) is 45-65 mass %, the solids content by mass of component (C) is 20-40 mass %, and the solids content by mass of component (D) is 35-45 mass %.
    Type: Application
    Filed: April 9, 2014
    Publication date: March 24, 2016
    Inventors: Yohei Koyama, Yasufumi HONDA, Souichi Mori, Hisayuki Nakashima, Hironori Tsutsui
  • Publication number: 20090169643
    Abstract: The present invention disclosed a composition for enhancing immune function comprising, as active ingredients, zinc and a saccharide having 3-O-?-D-glucopyranosyl-D-glucose as a structural unit. The composition for enhancing immune function according to the present invention exhibits a remarkably superior immunoenhancing effect to that achieved by the independent use of zinc and a saccharide having 3-O-?-D-glucopyranosyl-D-glucose as a structural unit.
    Type: Application
    Filed: June 14, 2006
    Publication date: July 2, 2009
    Inventors: Yohei Koyama, Shinji Murosaki, Yoshihiro Yamamoto, Norio Yamamoto, Yoshitaka Hirose