Patents by Inventor Ichiro Shimasaki

Ichiro Shimasaki 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 bolt heater having induction heating coil
    Patent number: 5397876
    Abstract: A high frequency bolt heater is provided which can heat up the inside of a narrow hole much faster than a conventional bolt heater employing a resistance wire. The high frequency bolt heater includes an induction heating coil made of a copper tube bent in a hairpin fashion and whose shape is made approximately circular in section by pinching a magnet between opposed portions thereof. The heater can be inserted into a hole bored in the axial direction of a metallic bolt. A length of the coil is made approximately equal with that of the bored hole, and the magnet is omitted from a region of the heater which corresponds to a screw portion of the bolt for mounting a nut. An adjustable stopper made of a heat resistant electrical insulator is provided for setting a necessary length of the induction heating coil to be inserted into the hole, and a heat resistant insulator is provided on the surface of the induction heating coil.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: March 14, 1995
    Assignees: Mitsubishi Jukogyo Kabushiki Kaishi, Dai-ichi High Frequency Co., Ltd.
    Inventors: Takijiro Shimamoto, Yoji Morita, Ichiro Shimasaki, Ichiro Matsuura, Tsukasa Maenosono