Patents by Inventor Takashi Sengo

Takashi Sengo 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).

  • Method of controlling heaters for copying apparatus
    Patent number: 4259565
    Abstract: A method of controlling dew formation preventing heaters for a copying apparatus which includes a first temperature detecting means for detecting the temperature inside the copying apparatus, with a first reference temperature (T1) being set, a second temperature detecting means for detecting the temperature inside the copying apparatus, with a second reference temperature (T2) higher than said first reference temperature (T1) being set, a humidity detecting means for detecting the humidity inside the copying apparatus, with a reference humidity (H1) being set, and a first group of heaters and a second group of heaters to be controlled by said temperature detecting means and said humidity detecting means.
    Type: Grant
    Filed: September 5, 1979
    Date of Patent: March 31, 1981
    Assignee: Mita Industrial Company Limited
    Inventors: Tetsuo Ogino, Takashi Sengo, Toshio Yoshiyama