Patents by Inventor Daigo ARAKIDA

Daigo ARAKIDA 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).

  • Patent number: 12404905
    Abstract: A dog clutch control system includes a dog clutch including a first engagement member and a second engagement member, an actuator, a rotational speed detecting unit, an arrival timing predicting unit, and a phase correcting unit. The arrival timing predicting unit predicts an arrival timing at which a rotational speed difference between the first engagement member and the second engagement member is adjusted to a value equal to or less than a predetermined threshold, based on the rotational speeds of the first and second engagement member and a time variation characteristic of the rotational speed difference during a rotational speed adjustment. The phase correcting unit performs a phase correction to bring an engageable timing, which is a timing at which the first engagement member is engageable with the second engagement member after the arrival timing, closer to the arrival timing compared to a case without the phase correction.
    Type: Grant
    Filed: January 17, 2025
    Date of Patent: September 2, 2025
    Assignee: DENSO CORPORATION
    Inventors: Yusuke Kimura, Junji Ute, Hiroya Ando, Shuhei Oe, Daigo Arakida
  • Publication number: 20250163977
    Abstract: A dog clutch control system includes a dog clutch including a first engagement member and a second engagement member, an actuator, a rotational speed detecting unit, an arrival timing predicting unit, and a phase correcting unit. The arrival timing predicting unit predicts an arrival timing at which a rotational speed difference between the first engagement member and the second engagement member is adjusted to a value equal to or less than a predetermined threshold, based on the rotational speeds of the first and second engagement member and a time variation characteristic of the rotational speed difference during a rotational speed adjustment. The phase correcting unit performs a phase correction to bring an engageable timing, which is a timing at which the first engagement member is engageable with the second engagement member after the arrival timing, closer to the arrival timing compared to a case without the phase correction.
    Type: Application
    Filed: January 17, 2025
    Publication date: May 22, 2025
    Inventors: Yusuke KIMURA, Junji UTE, Hiroya ANDO, Shuhei OE, Daigo ARAKIDA
  • Publication number: 20220135341
    Abstract: A position switching device includes a rotating body, a drive unit, and a plurality of position switching rods. The rotating body has, on a surface, a plurality of position switching groove groups each defining a plurality of switching positions and rotates about one shaft as a rotation axis. The drive unit rotationally drives the rotating body in a first rotation direction or a second rotation direction opposite to the first rotation direction. The plurality of position switching rods each has one end engaged with corresponding one of the plurality of the position switching groove groups and the other end engaged with corresponding one of a plurality of position switching mechanisms.
    Type: Application
    Filed: January 13, 2022
    Publication date: May 5, 2022
    Inventors: Kyohei TAKAHASHI, Daigo ARAKIDA