Patents by Inventor Daisuke Takai

Daisuke Takai 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: 20210164270
    Abstract: A door handle including a capacitance sensor configured to detect an operation body is provided. The capacitance sensor includes a substrate formed of an insulator and having a surface, at least one first sensor electrode disposed on the surface of the substrate, a plurality of second sensor electrodes disposed on the surface of the substrate, and a controller. The number of the plurality of second sensor electrodes is greater than the number of the at least one first sensor electrode. The controller applies a voltage to the plurality of second sensor electrodes and detects a coordinate position of the operation body, in a case where a capacitance between the operation body and the at least one first sensor electrode is greater than or equal to a predetermined value.
    Type: Application
    Filed: February 3, 2021
    Publication date: June 3, 2021
    Inventors: Kazuhito OSHITA, Daisuke TAKAI
  • Publication number: 20210159027
    Abstract: An operation device includes a housing, an operation member, and a detector. The housing includes an electrically conductive portion on a surface thereof. The operation member is supported by the housing such that the operation member is movable in response to an operation by an operation body, and is configured to be capacitively coupled to the operation body and to the electrically conductive portion. The detector is configured to detect whether the operation body is in proximity to the operation member based on a change in capacitance at the electrically conductive portion.
    Type: Application
    Filed: February 2, 2021
    Publication date: May 27, 2021
    Inventors: Yasuji HAGIWARA, Daisuke TAKAI, Takashi SASAKI, Takeshi MASAKI, Toshiki NAKAMURA, Masaki OTA, Hiroshi SHIGETAKA, Masahiro TAKATA
  • Patent number: 11006898
    Abstract: The biological information measurement apparatus includes a first signal applying unit which applies a first applying signal to electrodes at the time of the measurement of biological information, a biological information measurement unit which measures biological information based on detection signals of the electrodes at the time of the measurement of biological information, a second signal applying unit which applies a second applying signal to the electrodes at a time of detection of an attached state, and an attached state detection unit which detects an attached state based on the detection signals at the time of the detection of an attached state. At least some of the electrodes at the time of the measurement of biological information is identical with at least some of the electrodes at the time of the detection of an attached state.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: May 18, 2021
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Yukimitsu Yamada, Daisuke Takai, Toshiki Nakamura
  • Patent number: 10969895
    Abstract: An input device includes an operation panel, a frame disposed on a back side of the operation panel, a pressure detector disposed between the operation panel and the frame, and an elastic part. The pressure detector includes a lever including a deformation part that warps when a pressing force is applied, a protruding part provided on a first surface of the deformation part, and a surrounding wall provided on a periphery of a second surface of the deformation part; and a pressure detection element that is disposed in a region of the second surface of the deformation part surrounded by the surrounding wall, warps along with the deformation part, and outputs a pressure detection signal corresponding to the pressing force. The elastic part is disposed between the protruding part or the surrounding wall and the frame or the operation panel and applies a pre-pressure to the deformation part.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: April 6, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Wataru Sato, Daisuke Takai, Hiroshi Shigetaka, Yuzuru Kawana, Hajime Shikata
  • Patent number: 10928909
    Abstract: A tactile sensation presenting device includes: a warmth/coldness presenting element configured to present warm/cold information to a presentation area; a vibrating element configured to present vibration information; and a frame made of a thermally insulating material and having an opening portion. In the tactile sensation presenting device, with respect to the warmth/coldness presenting element, at least part of the presentation area is exposed from the opening portion of the frame such that an operating part is able to contact the presentation area and surroundings of the exposed area are covered by the frame. In the tactile sensation presenting device, the vibration information, which is presented by the vibrating element, is transmitted to the warmth/coldness presenting element, and a tactile sensation, which includes the warm/cold information and the vibration information, is presented to the presentation area.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: February 23, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Yuzuru Kawana, Daisuke Takai
  • Publication number: 20200392769
    Abstract: A door handle includes door handle case, a first detection electrode and a second detection electrode disposed in the door handle case, and a controller connected to the first detection electrode and the second detection electrode. The controller separately measures a first capacitance between the first detection electrode and an operation body and a second capacitance between the second detection electrode and the operation body, and the controller determines whether a locking operation is performed by the operation body based on one or both of the first capacitance and the second capacitance.
    Type: Application
    Filed: August 28, 2020
    Publication date: December 17, 2020
    Inventors: Toshiki NAKAMURA, Takashi SASAKI, Yoshiyuki KIKUCHI, Yuzuru KAWANA, Yukimitsu YAMADA, Daisuke TAKAI, Heishiro FUDO
  • Publication number: 20200378161
    Abstract: An operation detection device includes an electrostatic sensor accommodated inside a casing and including a first conductor and a second conductor, and a controller electrically connected to the first conductor and the second conductor, and applies a voltage to each of the first conductor and the second conductor, to measure an electrostatic capacitance of each of the first conductor and the second conductor. The first conductor is arranged in and the second conductor is not arranged in a detection region in which an operating body is detected by the electrostatic sensor. The first conductor and the second conductor are arranged in a non-detection region in which the operating body is not detected.
    Type: Application
    Filed: August 20, 2020
    Publication date: December 3, 2020
    Inventors: Toshiki NAKAMURA, Daisuke TAKAI, Takashi SASAKI, Yuzuru KAWANA, Yoshiyuki KIKUCHI, Heishiro FUDO
  • Patent number: 10794706
    Abstract: A position detection system according to an embodiment of the present invention includes a plurality of fixed stations 20; and a sensor unit 10 including an inertial sensor that detects movement history of a mobile body 51 and a distance sensor that detects separation distances between the mobile body 51 and the fixed stations 20. A position of the mobile body 51 is determined by detecting a first arrival position P1 obtained based on the movement history, a second arrival position P2 obtained based on the separation distances, and a relative distance L1 between the first arrival position P1 and the second arrival position P2, and by comparing a range value R1 obtained based on the movement history with the relative distance L1. The range value R1 is changed based on the movement history.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: October 6, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Keigo Wakana, Yukimitsu Yamada, Daisuke Takai
  • Patent number: 10770644
    Abstract: A piezoelectric device includes a substrate that is flexible and thermally deformable, and a composite piezoelectric body disposed on the substrate. Output in accordance with deformation of the composite piezoelectric body is obtained. The composite piezoelectric body includes a piezoelectric layer containing an organic binder containing piezoelectric particles, a first electrode layer stacked on a first surface side of the piezoelectric layer, and a second electrode stacked on a second surface side of the piezoelectric layer. The substrate is insert molded and integrated with a molded resin body having a curved shape.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: September 8, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Heishiro Fudo, Yasuji Hagiwara, Daisuke Takai, Shoji Sakurai, Masahiro Ishida, Yo Tahara
  • Patent number: 10760904
    Abstract: Accelerations (Ax, Ay, Az) in directions along (X?, Y?, Z?) detected by an acceleration sensor 10 are converted, based on a correction angle ?, which is an angle between a first detection axis X? and a first posture axis X, into accelerations (Bx By, Bz) in directions along three posture axes (X, Y, Z). A pitch angle ? and a roll angle ?, which indicate a posture of a portion to which the wearable device is attached, are calculated based on the accelerations (Bx By, Bz) obtained by the conversion based on the correction angle ?.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: September 1, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yukimitsu Yamada, Daisuke Takai
  • Patent number: 10748392
    Abstract: A tactile sensation providing apparatus includes a contact region to be touched by an operating body, a thermal sensation providing element that is disposed in the contact region and provides at least cold sensation information, and a warm sensation providing element that is disposed in the contact region and provides warm sensation information. The warm sensation providing element is disposed at least in regions that sandwich the thermal sensation providing element.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: August 18, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Daisuke Takai, Yuzuru Kawana, Katsunari Sato
  • Patent number: 10732717
    Abstract: A tactile sensation presenting device includes a vibrating element configured to present vibration information, a heater configured to present heat information, and a first heat insulating member disposed between the vibrating element and the heater. The heater is provided above the vibrating element and is provided at a contacting region which can be touched by an operating body.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: August 4, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Daisuke Takai, Yuzuru Kawana, Katsunari Sato
  • Publication number: 20200233557
    Abstract: An input device includes an operation panel, a flame disposed on a back side of the operation panel, a pressure detector disposed between the operation panel and the flame, and an elastic part. The pressure detector includes a lever including a deformation part that warps when a pressing force is applied, a protruding part provided on a first surface of the deformation part, and a surrounding wall provided on a periphery of a second surface of the deformation part; and a pressure detection element that is disposed in a region of the second surface of the deformation part surrounded by the surrounding wall, warps along with the deformation part, and outputs a pressure detection signal corresponding to the pressing force. The elastic part is disposed between the protruding part or the surrounding wall and the flame or the operation panel and applies a pre-pressure to the deformation part.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 23, 2020
    Inventors: Wataru SATO, Daisuke TAKAI, Hiroshi SHIGETAKA, Yuzuru KAWANA, Hajime SHIKATA
  • Patent number: 10710552
    Abstract: A smart keyless entry system having an on-vehicle apparatus installed in a vehicle and a portable device configured to communicate with the on-vehicle apparatus includes a location calculating unit configured to calculate a location of the portable device through communication between the on-vehicle apparatus and the portable device, and a vertical-position calculating unit configured to calculate a vertical position of the portable device, wherein the on-vehicle apparatus and the portable device communicate with each other under conditions adjusted in response to the calculated vertical position of the portable device, and wherein control is performed based on the calculated location of the portable device.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: July 14, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Yukimitsu Yamada, Daisuke Takai
  • Publication number: 20200207189
    Abstract: An operation input device includes a resistance element to generate a capacitance between an operating medium and the resistance element in response to an approach of the operating medium to the resistance element, and a power source to supply electric charge to one end and the other end of the resistance element. A first electric unit measures a first electric charge transfer amount supplied to the one end of the resistance element in response to generation of the capacitance. A second unit measures a second electric charge transfer amount supplied to the other end of the resistance element in response to generation of the capacitance. A controller is connected to the first and second units, and detects a position of the operating medium in a direction perpendicular to a surface of the resistance element based on a sum of the first and second electric charge transfer amounts.
    Type: Application
    Filed: March 13, 2020
    Publication date: July 2, 2020
    Inventors: Tatsumi FUJIYOSHI, Hiroshi SHIGETAKA, Daisuke TAKAI
  • Patent number: 10698494
    Abstract: A tactile sensation presenting device includes: a pressure sensation generating unit configured to present pressure information; and a tactile sensation generating unit arranged on the pressure sensation generating unit. The tactile sensation generating unit includes a vibrating element configured to present vibration information; a warmth/coldness presenting element provided above the vibrating element and configured to present warm/cold information. The vibration information, the warm/cold information, and the pressure information are presented to an operating part in contact with a tactile sensation presentation surface of the tactile sensation generating unit.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: June 30, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Daisuke Takai, Yuzuru Kawana
  • Publication number: 20200181953
    Abstract: An operation input device includes a substrate formed of an insulator, a plurality of detecting electrodes provided on a surface of the substrate, and a controller, wherein the controller detects capacitance generated between each of the detecting electrodes and an operation body when the operation body is positioned in proximity to the substrate, and determines that a gesture operation by the operation body is performed when a duration from when the capacitance becomes a first threshold or greater to when the capacitance becomes a second threshold or greater is a predetermined value or greater, or when a length in which the operation body is moved from when the capacitance becomes the first threshold or greater to when the capacitance becomes the second threshold or greater is a predetermined value or greater, the first threshold being a threshold for the capacitance, and the second threshold being greater than the first threshold.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Inventors: Kazuhito OSHITA, Daisuke Takai, Toshiki Nakamura
  • Patent number: 10649065
    Abstract: In a position detection system that has a plurality of transmitters/receivers placed at least three positions: processing is executed to measure distances among the plurality of transmitters/receivers, each distance being measured a plurality of times, and obtain a minimum value for each distance; processing is executed to obtain an angle between each two adjacent straight lines, each of which is one of straight lines that mutually connect the plurality of transmitters/receivers, by using minimum values, each of which is the minimum value for each distance; and if the absolute value of the difference between 180 degrees and the sum of angles, each of which is the angle between each two adjacent straight lines, inside a triangle formed by straight lines that interconnect three of the plurality of transmitters/receivers is smaller than a predetermined value, processing is executed to take the minimum values as the true values of the distances.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: May 12, 2020
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Keigo Wakana, Daisuke Takai, Yukimitsu Yamada, Toshiki Nakamura, Hironori Takayama
  • Publication number: 20200025863
    Abstract: A mobile station M is moved close to a mobile terminal unit 20 as a target object. In ST1, the absolute position of the mobile station M in an absolute coordinate system (Abs) set in a measurement area is calculated. In ST2, the relative position of the mobile terminal unit 20 in a relative coordinate system (Rel) set by the mobile station M is detected. In ST3, the orientation of the mobile station M in the absolute coordinate system (Abs) is detected. In ST4, the relative coordinate system (Rel) is rotated. In ST5, the absolute position of the mobile terminal unit 20 in the absolute coordinate system (Abs) is specified.
    Type: Application
    Filed: October 30, 2018
    Publication date: January 23, 2020
    Inventors: Keigo WAKANA, Yukimitsu YAMADA, Daisuke TAKAI
  • Publication number: 20190339782
    Abstract: A tactile sensation presenting device includes: a pressure sensation generating unit configured to present pressure information; and a tactile sensation generating unit arranged on the pressure sensation generating unit. The tactile sensation generating unit includes a vibrating element configured to present vibration information; a warmth/coldness presenting element provided above the vibrating element and configured to present warm/cold information. The vibration information, the warm/cold information, and the pressure information are presented to an operating part in contact with a tactile sensation presentation surface of the tactile sensation generating unit.
    Type: Application
    Filed: July 19, 2019
    Publication date: November 7, 2019
    Inventors: Kunio SATO, Daisuke TAKAI, Yuzuru KAWANA