Patents by Inventor Motoharu AMANO

Motoharu AMANO 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).

  • Door opening and closing device for vehicles
    Patent number: 11499357
    Abstract: A door opening and closing device for vehicles of the present invention includes: a motor drive mechanism; a first housing that accommodates the motor drive mechanism; a spindle drive mechanism connected to the motor drive mechanism; and a second housing that is arranged coaxially with the first housing and relatively moves with respect to the first housing by the spindle drive mechanism. The spindle drive mechanism includes: a spindle connected to the motor drive mechanism; a spindle nut screwed with the spindle; a push rod fixed so as not to rotate relative to the spindle nut and provided with a protrusion on its outer periphery; and a guide tube in which a guide groove guiding the protrusion of the push rod in an axial direction is formed.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: November 15, 2022
    Assignee: U-SHIN LTD.
    Inventors: Mikio Yamagata, Motoharu Amano
  • DOOR OPENING AND CLOSING DEVICE FOR VEHICLES
    Publication number: 20200277816
    Abstract: A door opening and closing device for vehicles of the present invention includes: a motor drive mechanism; a first housing that accommodates the motor drive mechanism; a spindle drive mechanism connected to the motor drive mechanism; and a second housing that is arranged coaxially with the first housing and relatively moves with respect to the first housing by the spindle drive mechanism. The spindle drive mechanism includes: a spindle connected to the motor drive mechanism; a spindle nut screwed with the spindle; a push rod fixed so as not to rotate relative to the spindle nut and provided with a protrusion on its outer periphery; and a guide tube in which a guide groove guiding the protrusion of the push rod in an axial direction is formed.
    Type: Application
    Filed: October 30, 2018
    Publication date: September 3, 2020
    Inventors: Mikio YAMAGATA, Motoharu AMANO