Patents by Inventor Yoshiyuki Takada

Yoshiyuki Takada 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).

  • High frequency heating unit with rotating waveguide
    Patent number: 4568811
    Abstract: This invention is designed to make uniform the heating of the object inside the heating chamber by turning an internal waveguide which is roughly in a foldable fan shape and located at the bottom of the heating chamber in a structure adapted for feeding high frequency electric waves from the bottom of the heating chamber. In order to have stable gyration of the internal waveguide, and annular protrusion made of a low loss dielectric is placed between the low impedance parts provided on the internal waveguide and the heating chamber bottom surface. In this way, a rotary structure which is economical, easy to assemble and reliable can be realized.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: February 4, 1986
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hirofumi Yoshimura, Masahiro Nitta, Yoshiyuki Takada