Patents by Inventor Hisashi Sugimoto

Hisashi Sugimoto 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).

  • Temperature measurement device
    Patent number: 4986670
    Abstract: A temperature measurement device is provided with a temperature sensing element which contains a quartz resonator having a quartz oscillating crystal whose ratio of width to thickness is in the range of 9.48 to 9.69, and an antenna which receives stimulus for the quartz oscillating crystal and transmits waves of reverberatory oscillation. The temperature measurement device is capable of measuring temperatures in the range of normal room temperature to extremely low temperatures (4.degree. K.).
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: January 22, 1991
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade, Tokyo Denpa Co., Ltd.
    Inventors: Futoshi Uchiyama, Ko Agatsuma, Takeshi Ohara, Koichi Tsukamoto, Sumiyuki Ishigami, Mitsuru Sato, Hisashi Sugimoto
  • Method and apparatus for generating an ultra low current plasma arc
    Patent number: 4851636
    Abstract: A method and apparatus for generating a plasma arc used in arc welding, arc transformation hardening, minute working, etc. A plasma gas used for generating a plasma arc includes xenon. A tungsten electrode having a diameter of 0.5 millimeters or less is used. Thus, an extremely low plasma arc current of 0.1 amperes or less can be produced in a stabilized manner.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: July 25, 1989
    Assignee: Kabushi Kaisha Toyota Chuo Kenkyusho
    Inventors: Hisashi Sugimoto, Goro Watanabe