Patents by Inventor You Nakajima

You Nakajima 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).

  • Coating agent for rubber-coated cylinder head gasket and cylinder head gasket
    Patent number: 11193040
    Abstract: A coating agent for a rubber-coated cylinder head gasket contains a lubricant and a urethane resin. The lubricant is unsintered polytetrafluoroethylene resin particles having an average primary particle size of 1 ?m or less. The amount of the unsintered polytetrafluoroethylene resin particles in a solid content is 30 to 80% by volume. The present invention provides a coating agent for a rubber-coated cylinder head gasket that can form a coat that is highly wear-resistant under high contact pressure and high temperature conditions and with which a rubber layer is less likely to stick to the seal face of the cylinder block or the cylinder head after the use under high contact pressure and high temperature conditions, and a cylinder head gasket obtained using the coating agent.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: December 7, 2021
    Assignee: NICHIAS CORPORATION
    Inventors: Tomokazu Watanabe, Nahoko Kitajima, Hideaki Mori, You Nakajima
  • COATING AGENT FOR RUBBER-COATED CYLINDER HEAD GASKET AND CYLINDER HEAD GASKET
    Publication number: 20190309186
    Abstract: A coating agent for a rubber-coated cylinder head gasket contains a lubricant and a urethane resin. The lubricant is unsintered polytetrafluoroethylene resin particles having an average primary particle size of 1 ?m or less. The amount of the unsintered polytetrafluoroethylene resin particles in a solid content is 30 to 80% by volume. The present invention provides a coating agent for a rubber-coated cylinder head gasket that can form a coat that is highly wear-resistant under high contact pressure and high temperature conditions and with which a rubber layer is less likely to stick to the seal face of the cylinder block or the cylinder head after the use under high contact pressure and high temperature conditions, and a cylinder head gasket obtained using the coating agent.
    Type: Application
    Filed: December 1, 2017
    Publication date: October 10, 2019
    Applicant: NICHIAS CORPORATION
    Inventors: Tomokazu Watanabe, Nahoko Kitajima, Hideaki Mori, You Nakajima