Patents by Inventor Kazutaka Hakoyama

Kazutaka Hakoyama 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).

  • Sewing machine needle
    Patent number: 10870939
    Abstract: There is provided a sewing machine needle 10 including: a shank portion 11 that is attached to a sewing machine; and a shaft portion 12 that is provided on a front end side of the shank portion 11; wherein: a needle eye 13 is formed to penetrate the shaft portion 12, and a long groove 14 for guiding a thread from a position of the needle eye 13 toward the shank portion 11 is formed in the shaft portion 12; and a suppression portion 16 for suppressing movement of a needle thread 21 is provided in an intermediate portion of the long groove 14. Thus, it is possible to provide a sewing machine needle by which a loop can be formed stably and that causes few damage to a needle thread and can be also manufactured easily.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: December 22, 2020
    Assignees: ORGAN NEEDLE CO., LTD., TOYOTA AUTO BODY CO., LTD.
    Inventors: Chie Hasegawa, Yuji Ichikawa, Mai Mitsuya, Kazutaka Hakoyama, Kenji Kato, Yoshikazu Kohara
  • SEWING MACHINE NEEDLE
    Publication number: 20190112739
    Abstract: There is provided a sewing machine needle 10 including: a shank portion 11 that is attached to a sewing machine; and a shaft portion 12 that is provided on a front end side of the shank portion 11; wherein: a needle eye 13 is formed to penetrate the shaft portion 12, and a long groove 14 for guiding a thread from a position of the needle eye 13 toward the shank portion 11 is formed in the shaft portion 12; and a suppression portion 16 for suppressing movement of a needle thread 21 is provided in an intermediate portion of the long groove 14. Thus, it is possible to provide a sewing machine needle by which a loop can be formed stably and that causes few damage to a needle thread and can be also manufactured easily.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Applicants: Organ Needle Co., Ltd., Toyota Shatai Kabushiki Kaisha
    Inventors: Chie Hasegawa, Yuji Ichikawa, Mai Mitsuya, Kazutaka Hakoyama, Kenji Kato, Yoshikazu Kohara