Patents by Inventor Shunsuke Hachiya

Shunsuke Hachiya 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).

  • Publication number: 20210271182
    Abstract: A high-voltage electrical circuit board is located in a first region that is a region at one side of photosensitive drums in a first direction and outside of the photosensitive drums in the first direction. A first motor drives a conveyance mechanism. A second motor is located in a second region and drives each photosensitive drum. A third motor is located in the second region and drives each developing roller to rotate and to drive a separation mechanism configured to individually move the developing rollers between a contact position and a separation position. A control board is located in the second region. The control board includes a controller configured to control a first applying circuit, the first motor, the second motor, and the third motor. The first motor, the second motor, the third motor, and the control board are located at different positions from one another in the second region.
    Type: Application
    Filed: February 22, 2021
    Publication date: September 2, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Osamu TAKAHASHI, Masaaki WAKIZAKA, Kentaro AOYAMA, Shunsuke HACHIYA, Toshinori ARAKI, Keita INOUE, Shinta SUGIURA
  • Patent number: 10642185
    Abstract: A scanning exposure device including: a first and a second light sources emitting a first and second beam, respectively; a polygon mirror having reflecting surfaces; a first and a second optical sensors detecting the first and the second beam, respectively; and a controller storing first writing time until which an exposure by the first beam starts after the first beam is detected and second writing time until which an exposure by the second beam starts after the first beam is detected, for respective reference surface identifiers specifying the respective reflecting surfaces, and the controller acquires a first timing at which the first beam is detected and a second timing at which the second beam is detected for the respective reflecting surfaces identified by respective acquisition surface identifiers; and specifies a correspondence relation between the respective reference surface identifiers and the respective acquisition surface identifiers.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: May 5, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Michihiro Shimadu, Shunsuke Hachiya, Yoshifumi Nakamura
  • Publication number: 20190243276
    Abstract: A scanning exposure device including: a first and a second light sources emitting a first and second beam, respectively; a polygon mirror having reflecting surfaces; a first and a second optical sensors detecting the first and the second beam, respectively; and a controller storing first writing time until which an exposure by the first beam starts after the first beam is detected and second writing time until which an exposure by the second beam starts after the first beam is detected, for respective reference surface identifiers specifying the respective reflecting surfaces, and the controller acquires a first timing at which the first beam is detected and a second timing at which the second beam is detected for the respective reflecting surfaces identified by respective acquisition surface identifiers; and specifies a correspondence relation between the respective reference surface identifiers and the respective acquisition surface identifiers.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 8, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Michihiro SHIMADU, Shunsuke HACHIYA, Yoshifumi NAKAMURA