Patents by Inventor Kenzo Okamoto

Kenzo Okamoto 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).

  • Control unit for power-supply circuit in electronic range
    Patent number: 4755647
    Abstract: In an electronic range, an opening/closing operation of a range door thereof is manually conducted while switching operation of a power-supply circuit is conducted through a push-button type starting switch to make it possible that a control unit for the power-supply circuit is not energized when the range door is open, so that a control switch of the electronic range is completely prevented from being misused.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: July 5, 1988
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Hideo Nishikawa, Kenzo Okamoto, Fumihiko Kitada
  • Flame-rise stopping means for a kerosene stove
    Patent number: 4562825
    Abstract: A flame-rise stopping means for a kerosene stove, comprising an annular reticulate member having an inwardly directed flame at the lower end of the annular member and a holder plate fixed to the underside of the top plate of the stove and serving to removably hold the annular reticulated element above and opposite the chimney of the stove.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: January 7, 1986
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Hideo Nishikawa, Kenzo Okamoto, Hiroichi Sakai, Fumihiko Kitada
  • Reflection type kerosene stove
    Patent number: 4556045
    Abstract: A reflection type kerosene stove of which the kerosene meter and kerosene inlet are located in a space provided in the stove body and closed by a door, thus hiding the kerosene meter and inlet which are liable to be soiled with kerosene, when not used.
    Type: Grant
    Filed: February 21, 1985
    Date of Patent: December 3, 1985
    Assignee: Imanishi Kinzoku Kogyo Kabushi Kaisha
    Inventors: Hideo Nishikawa, Kenzo Okamoto, Koichi Sakai, Fumihiko Kitada
  • Kerosene combustion apparatus
    Patent number: 4515557
    Abstract: Kerosene combustion apparatus of a type having a vertically movable wick disposed between coaxial outer and inner cylinders, the outer cylinder being provided with slits formed at the edges of the projections whereby complete and quick extinction of flame may be achieved with considerably reduced odor.
    Type: Grant
    Filed: January 19, 1984
    Date of Patent: May 7, 1985
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha (Imarflex Mfg. Co.)
    Inventors: Hideo Nishikawa, Kenzo Okamoto, Koichi Sakai, Fumihiko Kitada
  • Stove
    Patent number: D276546
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: November 27, 1984
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Kenzo Okamoto, Hiroichi Sakai, Fumihiko Kitada, Hideharu Kimura
  • Stove
    Patent number: D276548
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: November 27, 1984
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Kenzo Okamoto, Hiroichi Sakai, Fumihiko Kitada, Hideharu Kimura
  • Stove
    Patent number: D282395
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: January 28, 1986
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha (Imarflex Mfg. Co., Ltd.)
    Inventors: Hideo Nishikawa, Kenzo Okamoto, Koichi Sakai, Fumihiko Kitada
  • Stove
    Patent number: D284504
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: July 1, 1986
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha (Imarflex Mfg. Co., Ltd.)
    Inventors: Kenzo Okamoto, Koichi Sakai
  • Stove
    Patent number: D286069
    Type: Grant
    Filed: June 21, 1983
    Date of Patent: October 7, 1986
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha (Imarflex Mfg. Co., Ltd.)
    Inventors: Hideo Nishikawa, Kenzo Okamoto, Koichi Sakai, Fumihiko Kitada
  • Stove
    Patent number: D288232
    Type: Grant
    Filed: January 10, 1984
    Date of Patent: February 10, 1987
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Kenzo Okamoto, Hideo Nishikawa, Koichi Sakai, Fumihiko Kitada
  • Stove
    Patent number: D288358
    Type: Grant
    Filed: November 28, 1983
    Date of Patent: February 17, 1987
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Hideo Nishikawa, Kenzo Okamoto, Koichi Sakai
  • Hot plate
    Patent number: D289847
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: May 19, 1987
    Assignee: Imanishi Kinzoku Kogyo Kabushiki Kaisha
    Inventors: Kenzo Okamoto, Fumihiko Kitada, Jun Yoshikado