Patents by Inventor Goh MITOYA

Goh MITOYA 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).

  • Electrolytic polishing method and device
    Patent number: 11021807
    Abstract: The purpose of the present invention is to further level the amount of polishing during electrolytic polishing of the inside of a hollow pipe. A holding frame for vertically holding a hollow pipe is pivotally supported on a rack so as to be vertically invertible about the vertical center of the hollow pipe. An electrode is inserted through the hollow pipe and a liquid buffer is disposed on each end of the hollow pipe. A valve mechanism is capable of switching a liquid supply/discharge circuit so as to supply an electrolyte via the liquid buffer positioned at the bottom and discharge the electrolyte via the liquid buffer positioned at the top whether it is before or after the inversion of the holding frame (inversion of the hollow pipe). During an electrolyte supply period before and after the inversion, an electrolytic treatment is as a matter of course carried out for a predetermined length of time. Although said switching by the valve mechanism may be manually performed, a control means may also be used.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: June 1, 2021
    Assignees: Marui Galvanizing Co., Ltd., Higashi Nihon Kidenkaihatsu Co., Ltd., Wing Co., Ltd.
    Inventors: Yoshiaki Ida, Takanori Yamaguchi, Vijay Chouhan, Keisuke Nii, Goh Mitoya, Takao Akabori, Ken-ichi Miyano, Fukumi Takahashi, Yasunori Anetai, Hitoshi Hayano, Hideaki Monjushiro, Shigeki Kato, Takayuki Saeki
  • ELECTROLYTIC POLISHING METHOD AND DEVICE
    Publication number: 20200199771
    Abstract: The purpose of the present invention is to further level the amount of polishing during electrolytic polishing of the inside of a hollow pipe. A holding frame for vertically holding a hollow pipe is pivotally supported on a rack so as to be vertically invertible about the vertical center of the hollow pipe. An electrode is inserted through the hollow pipe and a liquid buffer is disposed on each end of the hollow pipe. A valve mechanism is capable of switching a liquid supply/discharge circuit so as to supply an electrolyte via the liquid buffer positioned at the bottom and discharge the electrolyte via the liquid buffer positioned at the top whether it is before or after the inversion of the holding frame (inversion of the hollow pipe). During an electrolyte supply period before and after the inversion, an electrolytic treatment is as a matter of course carried out for a predetermined length of time. Although said switching by the valve mechanism may be manually performed, a control means may also be used.
    Type: Application
    Filed: January 24, 2019
    Publication date: June 25, 2020
    Inventors: Yoshiaki IDA, Takanori YAMAGUCHI, Vijay CHOUHAN, Keisuke NII, Goh MITOYA, Takao AKABORI, Ken-ichi MIYANO, Fukumi TAKAHASHI, Yasunori ANETAI, Hitoshi HAYANO, Hideaki MONJUSHIRO, Shigeki KATO, Takayuki SAEKI