Patents by Inventor Wataru Okumura

Wataru Okumura 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 for welding synthetic resin member
    Patent number: 11235536
    Abstract: A protrusion on a first member made of synthetic resin wherein a laser beam is applied to a side surface of the protrusion in a state in which a top surface of the protrusion of the first member is abutted against a second member made of synthetic resin, so as to melt at least the entire top surface of the protrusion and melt a portion of the second member in contact with the protrusion by heat of the melted top surface of the protrusion, followed by solidification of the melted portions, whereby the first member and the second member are welded together.
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: February 1, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, ISHIKAWA PREFECTURE, TORAY INDUSTRIES, INC., MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, SUZUKI MOTOR CORPORATION, TEIJIN LIMITED
    Inventors: Takayuki Mori, Kenichi Hirosaki, Wataru Okumura, Daisuke Mori, Yoshihiro Iwano, Kazuaki Amaoka
  • METHOD FOR WELDING SYNTHETIC RESIN MEMBER
    Publication number: 20210162678
    Abstract: A protrusion on a first member made of synthetic resin wherein a laser beam is applied to a side surface of the protrusion in a state in which a top surface of the protrusion of the first member is abutted against a second member made of synthetic resin, so as to melt at least the entire top surface of the protrusion and melt a portion of the second member in contact with the protrusion by heat of the melted top surface of the protrusion, followed by solidification of the melted portions, whereby the first member and the second member are welded together.
    Type: Application
    Filed: August 13, 2018
    Publication date: June 3, 2021
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, TORAY INDUSTRIES, INC., ISHIKAWA PREFECTURE, MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, SUZUKI MOTOR CORPORATION, TEIJIN LIMITED
    Inventors: Takayuki MORI, Kenichi HIROSAKI, Wataru OKUMURA, Daisuke MORI, Yoshihiro IWANO, Kazuaki AMAOKA
  • High-strength synthetic fiber and method and apparatus for fabricating the same
    Patent number: 6497952
    Abstract: A high-strength synthetic fiber is fabricated in such a way that a fiber, such as a polyester fiber, nylon fiber, or polyether ketone fiber, is irradiated with an infrared beam and is drawn while its thread is heated and softened at temperatures higher than a glass transition temperature. An apparatus for fabricating a fiber is provided with a means (10) for continuously feeding a thread (1) at a constant feed rate (v) and an infrared irradiation means (13) including a laser for irradiating the thread (1) with an infrared beam, interposed between the means (10) for feeding the thread and a fiber winding means (11) for winding the thread (1) at a winding rate (V) higher than the constant feed rate (v), in order to soften the thread (1) traveling to be fed and wound.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: December 24, 2002
    Assignee: Ueda Textile Science Foundation
    Inventors: Yutaka Ohkoshi, Toshifumi Ikaga, Wataru Okumura, Atsushi Kobayashi, Takayoshi Yamaguchi