Patents by Inventor Tadahiro Konita

Tadahiro Konita 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).

  • Welding device and method for welding thermoplastic resin articles, and pressing unit for the welding device
    Patent number: 9108362
    Abstract: A welding device includes a compressor configured to compress a welding part and its adjoining surfaces of thermoplastic resin articles (2a, 2b) in directions perpendicular to the axis of a core (1), and a heater, and is configured such that: the surface of the welding part of the thermoplastic resin articles is compressed with a predetermined pressure by the compressor, the compression of the thermoplastic resin articles is then continued to extend a compressed region along the axis of the core without changing a relative position between the compressor in the compressed region and the surface of the welding part of the thermoplastic resin articles, the welding part of the thermoplastic resin articles is heated and welded by the heater, and after the welding, the pressure applied by the compressor is lowered to stop the compression of the thermoplastic resin articles such that the thermoplastic resin articles fitted on the core can be taken out of the welding device.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: August 18, 2015
    Assignee: SEIDENSHA ELECTRONICS CO., LTD.
    Inventor: Tadahiro Konita
  • WELDING DEVICE AND METHOD FOR WELDING THERMOPLASTIC RESIN ARTICLES, AND PRESSING UNIT FOR THE WELDING DEVICE
    Publication number: 20140326411
    Abstract: A welding device includes a compressor configured to compress a welding part and its adjoining surfaces of thermoplastic resin articles (2a, 2b) in directions perpendicular to the axis of a core (1), and a heater, and is configured such that: the surface of the welding part of the thermoplastic resin articles is compressed with a predetermined pressure by the compressor, the compression of the thermoplastic resin articles is then continued to extend a compressed region along the axis of the core without changing a relative position between the compressor in the compressed region and the surface of the welding part of the thermoplastic resin articles, the welding part of the thermoplastic resin articles is heated and welded by the heater, and after the welding, the pressure applied by the compressor is lowered to stop the compression of the thermoplastic resin articles such that the thermoplastic resin articles fitted on the core can be taken out of the welding device.
    Type: Application
    Filed: February 13, 2013
    Publication date: November 6, 2014
    Inventor: Tadahiro Konita