Patents by Inventor Hajime SHIKATA

Hajime SHIKATA 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: 11776367
    Abstract: A tactile sensation providing apparatus includes a linear resonant actuator; and circuitry configured to provide a pulse wave to the linear resonant actuator as a driving signal. The circuitry is further configured to, when a frequency of the pulse wave is smaller than a resonance frequency of the linear resonant actuator, set a pulse width of the pulse wave at a value smaller than a half of a reciprocal of the frequency of the pulse wave.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: October 3, 2023
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Toshihiko Saito, Hajime Shikata
  • Patent number: 11402281
    Abstract: A force sensor includes a substrate; a first electrode fixed to a first area on the substrate; a second electrode fixed to a second area different from the first area on the substrate, the second electrode extending to a position higher than the first electrode; a capacitance detecting unit configured to detect a capacitance corresponding to a distance between the first electrode and the second electrode; and an operation member including a contact area that is in contact with the second electrode. At least one of the first electrode and the second electrode is provided in plurality. The second electrode is elastically deformed by a load applied to the second electrode by an operation with respect to the operation member, and the distance between the second electrode and the first electrode changes according to an elastic deformation of the second electrode.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 2, 2022
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Daisuke Takai, Kazuhito Oshita, Hajime Shikata
  • Publication number: 20220154498
    Abstract: A door handle, to be attached to a door, includes an outer case, an inner case integrated with the outer case, and a pressure detector configured to detect pressure applied to the inner case. The inner case includes a recess in proximity to an end portion in a longitudinal direction, and the pressure detector detects a displacement of a first inner wall surface on a center portion side of the inner case in the recess, caused by the pressure applied to the inner case.
    Type: Application
    Filed: February 4, 2022
    Publication date: May 19, 2022
    Inventors: Wataru SATO, Yuzuru KAWANA, Hajime SHIKATA, Kazuhito OSHITA, Takeshi MASAKI, Takashi SASAKI
  • Patent number: 11234639
    Abstract: A controller controls a temperature sensation provider that provides temperature sensations to an object contacting a contact surface of the temperature sensation provider. The controller includes a database including control information that associates values of a temperature of the contact surface with values of a controlled variable of the temperature sensation provider for each of the temperature sensations, and a temperature controller that controls the temperature sensation provider based on a measured temperature of the contact surface, a temperature sensation to be provided, and the control information.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: February 1, 2022
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Toshihiko Saito, Hajime Shikata, Katsunari Sato
  • Publication number: 20210272427
    Abstract: A tactile sensation providing apparatus includes a linear resonant actuator; and circuitry configured to provide a pulse wave to the linear resonant actuator as a driving signal. The circuitry is further configured to, when a frequency of the pulse wave is smaller than a resonance frequency of the linear resonant actuator, set a pulse width of the pulse wave at a value smaller than a half of a reciprocal of the frequency of the pulse wave.
    Type: Application
    Filed: May 18, 2021
    Publication date: September 2, 2021
    Inventors: Kunio SATO, Toshihiko SAITO, Hajime SHIKATA
  • 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: 10884440
    Abstract: A control apparatus for controlling a thermal sensation providing device that provides a thermal sensation to an object coming in contact with a virtual material includes a database configured to store first information indicative of a relationship between a type of virtual material and a speed of a temperature change during a first period that starts at a commencement of providing the thermal sensation and that ends at a lapse of a first time length from the commencement, and a temperature control unit configured to control a temperature provided by the thermal sensation providing device during the first period based on the first information.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: January 5, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Kunio Sato, Toshihiko Saito, Hajime Shikata, 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
  • Publication number: 20190339142
    Abstract: A force sensor includes a substrate; a first electrode fixed to a first area on the substrate; a second electrode fixed to a second area different from the first area on the substrate, the second electrode extending to a position higher than the first electrode; a capacitance detecting unit configured to detect a capacitance corresponding to a distance between the first electrode and the second electrode; and an operation member including a contact area that is in contact with the second electrode. At least one of the first electrode and the second electrode is provided in plurality. The second electrode is elastically deformed by a load applied to the second electrode by an operation with respect to the operation member, and the distance between the second electrode and the first electrode changes according to an elastic deformation of the second electrode.
    Type: Application
    Filed: July 22, 2019
    Publication date: November 7, 2019
    Inventors: Kunio SATO, Daisuke TAKAI, Kazuhito OSHITA, Hajime SHIKATA
  • Publication number: 20190336064
    Abstract: A controller controls a temperature sensation provider that provides temperature sensations to an object contacting a contact surface of the temperature sensation provider. The controller includes a database including control information that associates values of a temperature of the contact surface with values of a controlled variable of the temperature sensation provider for each of the temperature sensations, and a temperature controller that controls the temperature sensation provider based on a measured temperature of the contact surface, a temperature sensation to be provided, and the control information.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 7, 2019
    Inventors: Kunio SATO, Toshihiko SAITO, Hajime SHIKATA, Katsunari SATO
  • Publication number: 20190317535
    Abstract: A control apparatus for controlling a thermal sensation providing device that provides a thermal sensation to an object coming in contact with a virtual material includes a database configured to store first information indicative of a relationship between a type of virtual material and a speed of a temperature change during a first period that starts at a commencement of providing the thermal sensation and that ends at a lapse of a first time length from the commencement, and a temperature control unit configured to control a temperature provided by the thermal sensation providing device during the first period based on the first information.
    Type: Application
    Filed: April 10, 2019
    Publication date: October 17, 2019
    Inventors: Kunio SATO, Toshihiko SAITO, Hajime SHIKATA, Katsunari SATO
  • Publication number: 20190296207
    Abstract: A tactile device includes a contact surface touchable by a tactile subject, a thermoelectric transducer which generates cold or warmth transferred to the contact surface, and a temperature sensor which detects the contact surface temperature. The thermoelectric transducer includes first and second heat transfer members, and a thermoelectric element which generates a temperature difference between the first and second heat transfer members based power supplied thereto. The contact surface is formed on a surface of the first heat transfer member, or on a surface of a third heat transfer member contacting the surface of the first heat transfer member. The temperature sensor is arranged on an outer side of a region where the contact surface is formed on the surface of the first heat transfer member, or on an outer side of a region contacting the third heat transfer member at the surface of the first heat transfer member.
    Type: Application
    Filed: June 10, 2019
    Publication date: September 26, 2019
    Inventors: Yuzuru KAWANA, Kunio SATO, Hajime SHIKATA