Patents by Inventor Shun Rai

Shun Rai 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: 9909350
    Abstract: The purpose of this invention is to provide a vehicular reflective optical sensor that has improved control reliability. Said vehicular reflective optical sensor is provided with a control unit (6) that: emits detection light (3) at prescribed intervals from a light-emitting unit (2) on an exterior panel of a vehicle towards a detection region (1) set outside said vehicle; tests for a threshold-exceeded state in which the amount of light in a light reflection (4) received from the detection region (1) by a light-receiving unit (5) exceeds a prescribed detection threshold; and, if it is detected that a detection target has entered the detection region (1), outputs a detection-confirmation signal. The control unit (6) uses, as the aforementioned detection threshold, the sum of a predetermined fixed value and an adjustment value comprising a summary statistic for the amounts of light in an appropriate number of light reflections (4) preceding the light reflection (4) on which the comparison is being performed.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: March 6, 2018
    Assignees: ALPHA CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Shun Rai, Takashi Ono, Kazuya Tanaka, Wataru Hirai
  • Publication number: 20160222714
    Abstract: The purpose of this invention is to provide a vehicular reflective optical sensor that has improved control reliability. Said vehicular reflective optical sensor is provided with a control unit (6) that: emits detection light (3) at prescribed intervals from a light-emitting unit (2) on an exterior panel of a vehicle towards a detection region (1) set outside said vehicle; tests for a threshold-exceeded state in which the amount of light in a light reflection (4) received from the detection region (1) by a light-receiving unit (5) exceeds a prescribed detection threshold; and, if it is detected that a detection target has entered the detection region (1), outputs a detection-confirmation signal. The control unit (6) uses, as the aforementioned detection threshold, the sum of a predetermined fixed value and an adjustment value comprising a summary statistic for the amounts of light in an appropriate number of light reflections (4) preceding the light reflection (4) on which the comparison is being performed.
    Type: Application
    Filed: July 22, 2014
    Publication date: August 4, 2016
    Inventors: Shun RAI, Takashi ONO, Kazuya TANAKA, Wataru HIRAI
  • Publication number: 20150006029
    Abstract: An object of the present invention is to provide a control structure of a vehicle capable of reliably responding to an operation intention of a user outside the vehicle. The structure includes: a reflective optical sensor 5 configured to detect an entry of a detection target 4 into a recessed hollow section 1 formed in a vehicle outer wall according to a change in an amount of reflected beams of detection light 3 emitted from a light emitting opening 2 provided in one wall surface of the recessed hollow section 1 toward another wall surface of the recessed hollow section 1; and a controller 6 configured to operate a certain control target 7 when the reflective optical sensor 5 detects the entry of the detection target 4 into the recessed hollow section 1.
    Type: Application
    Filed: March 27, 2013
    Publication date: January 1, 2015
    Applicant: Alpha Corporation
    Inventors: Takashi Ono, Jun Endo, Kazuya Tanaka, Shun Rai, Wataru Hirai