Patents by Inventor Yuki FUKUMI

Yuki FUKUMI 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).

  • Thermal shock resistance testing method and thermal shock resistance testing apparatus
    Patent number: 9885616
    Abstract: A ceramic body is heated to a predetermined temperature by using a furnace, and a cooling gas is ejected toward a first end face of the ceramic body so that the first end face of the ceramic body is cooled. At this time, the temperature of the first end face of the ceramic body is measured by a radiation thermometer provided on the same side from which the cooling gas is ejected, and the internal temperature is measured by a thermocouple provided in the ceramic body. Thereafter, a thermal shock resistance test in which actual use conditions are simulated is performed by obtaining the temperature gradient of the ceramic body from measurement results of the temperature of the first end face of the ceramic body and the internal temperature and checking the absence or presence of cracks that occurs to the ceramic body.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: February 6, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Takahiko Nakatani, Akifumi Kawakami, Masaaki Ito, Yuki Fukumi, Satoshi Sakashita
  • THERMAL SHOCK RESISTANCE TESTING METHOD AND THERMAL SHOCK RESISTANCE TESTING APPARATUS
    Publication number: 20160061758
    Abstract: A ceramic body is heated to a predetermined temperature by using a furnace, and a cooling gas is ejected toward a first end face of the ceramic body so that the first end face of the ceramic body is cooled. At this time, the temperature of the first end face of the ceramic body is measured by a radiation thermometer provided on the same side from which the cooling gas is ejected, and the internal temperature is measured by a thermocouple provided in the ceramic body. Thereafter, a thermal shock resistance test in which actual use conditions are simulated is performed by obtaining the temperature gradient of the ceramic body from measurement results of the temperature of the first end face of the ceramic body and the internal temperature and checking the absence or presence of cracks that occurs to the ceramic body.
    Type: Application
    Filed: August 26, 2015
    Publication date: March 3, 2016
    Inventors: Takahiko NAKATANI, Akifumi KAWAKAMI, Masaaki ITO, Yuki FUKUMI, Satoshi SAKASHITA