Patents by Inventor Moritaka Miwa

Moritaka Miwa 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: 11307304
    Abstract: An object detection device includes: first and second transmission/reception units transmitting and receiving an exploration wave to detect a peripheral object; and a processing unit determining a position of an object based on reception results of the first and second transmission/reception units. The processing unit calculates a first point based on first and second exploration waves, calculates a second point based on third and fourth exploration waves, determines that the object exists on a line segment interconnecting the first and second points when a distance between the first and second points is less than a predetermined value, and determines that the object exists on the line segment and line segments extended from both ends of the line segment when the distance between the first and second points is equal to or greater than the predetermined value.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: April 19, 2022
    Assignee: AISIN CORPORATION
    Inventors: Kaoru Nakagaki, Moritaka Miwa, Masato Sugiyama, Tsubasa Kamiya
  • Publication number: 20200132834
    Abstract: An object detection device includes: first and second transmission/reception units transmitting and receiving an exploration wave to detect a peripheral object; and a processing unit determining a position of an object based on reception results of the first and second transmission/reception units. The processing unit calculates a first point based on first and second exploration waves, calculates a second point based on third and fourth exploration waves, determines that the object exists on a line segment interconnecting the first and second points when a distance between the first and second points is less than a predetermined value, and determines that the object exists on the line segment and line segments extended from both ends of the line segment when the distance between the first and second points is equal to or greater than the predetermined value.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kaoru NAKAGAKI, Moritaka Miwa, Masato Sugiyama, Tsubasa Kamiya
  • Publication number: 20200132837
    Abstract: An obstacle recognition device for a vehicle door, includes: a sensor unit including a pair of transducers of an ultrasonic wave suitable for provision on a door that is opened by moving outward from a vehicle body; and a position recognition unit configured to recognize a relative position of an obstacle with respect to the door based on a reflected wave of an ultrasonic wave transmitted from the sensor unit and reflected by the obstacle. The pair of transducers are arranged at a predetermined interval, the sensor unit receives, by the pair of transducers, a reflected wave of an ultrasonic wave transmitted from at least one of the transducers toward a predetermined wave transmission area outside the vehicle body, and the position recognition unit recognizes the relative position of the obstacle with respect to the door based on respective reflected waves received by the pair of transducers.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Tsubasa KAMIYA, Masato SUGIYAMA, Moritaka MIWA, Nobuyasu MIWA, Kosuke TSUKAO
  • Patent number: 6087828
    Abstract: A displacement detection sensor includes a wire having one end portion and a second end portion, extending along a direction such that the second end portion is connected to a fixed position; a magnet generating a magnetic field therefrom, movable along the wire such that the wire is always being placed in the magnetic field and producing a twist in the wire when a current is supplied to the wire after a displacement of the magnet from its original to rest positions; a receiving device for receiving an elastic wave traveling directly to one end portion of the wire which is caused by the twist in the wire, the receiving device having a current induced thereat; an analyzing device for calculating the displacement on the basis of a time point at which the current is applied to the wire, and another time point at which the current is induced at the receiving device; and a tension device positioned at one end side of the wire for giving tension to the wire.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: July 11, 2000
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Moritaka Miwa