Patents by Inventor Hiroto Sekiguchi

Hiroto Sekiguchi 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).

  • Setting operation control in parts mounting device by reducing a variation of a distance value
    Patent number: 9897999
    Abstract: A technology is provided to enable lowering the fault generation rate related to a parts installation device. A parts installation device (100) (calculation device (150)) fetches or calculates state parameter values that represent the relative position relationship or the distance of a part holder and a part during the operation of removing and holding, calculates the fluctuation values of the state parameters, and corrects parameters having a small increase in the cycle time and is effective in reducing fluctuations among the parameter values of the holding position of the part holder, stop time, operating speed, and operation acceleration when the value of the fluctuations exceeds a first threshold.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: February 20, 2018
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Ryoji Asakura, Kenji Tamaki, Masahiro Hoshino, Hiroto Sekiguchi, Tomise Koyama
  • Semiconductor optical element array and method of manufacturing the same
    Patent number: 9224595
    Abstract: The present invention provides a semiconductor optical element array including: a semiconductor substrate having a main surface in which a plurality of concave portions is formed; a mask pattern that is formed on the main surface of the semiconductor substrate and includes a plurality of opening portions provided immediately above the plurality of concave portions; a plurality of fine columnar crystals that is made of a group-III nitride semiconductor grown from the plurality of concave portions to the upper side of the mask pattern through the plurality of opening portions; an active layer that is grown on each of the plurality of fine columnar crystals; and a semiconductor layer covering each of the active layers.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: December 29, 2015
    Assignee: SOPHIA SCHOOL CORPORATION
    Inventors: Katsumi Kishino, Akihiko Kikuchi, Hiroto Sekiguchi
  • CALCULATION DEVICE, PARTS INSTALLATION DEVICE, AND PROGRAM
    Publication number: 20150081079
    Abstract: A technology is provided to enable lowering the fault generation rate related to a parts installation device. A parts installation device (100) (calculation device (150)) fetches or calculates state parameter values that represent the relative position relationship or the distance of a part holder and a part during the operation of removing and holding, calculates the fluctuation values of the state parameters, and corrects parameters having a small increase in the cycle time and is effective in reducing fluctuations among the parameter values of the holding position of the part holder, stop time, operating speed, and operation acceleration when the value of the fluctuations exceeds a first threshold.
    Type: Application
    Filed: January 9, 2013
    Publication date: March 19, 2015
    Inventors: Ryoji Asakura, Kenji Tamaki, Masahiro Hoshino, Hiroto Sekiguchi, Tomise Koyama
  • SEMICONDUCTOR OPTICAL ELEMENT ARRAY AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20110169025
    Abstract: The present invention provides a semiconductor optical element array including: a semiconductor substrate having a main surface in which a plurality of concave portions is formed; a mask pattern that is formed on the main surface of the semiconductor substrate and includes a plurality of opening portions provided immediately above the plurality of concave portions; a plurality of fine columnar crystals that is made of a group-III nitride semiconductor grown from the plurality of concave portions to the upper side of the mask pattern through the plurality of opening portions; an active layer that is grown on each of the plurality of fine columnar crystals; and a semiconductor layer covering each of the active layers.
    Type: Application
    Filed: August 27, 2009
    Publication date: July 14, 2011
    Applicant: SOPHIA SCHOOL CORPORATION
    Inventors: Katsumi Kishino, Akihiko Kikuchi, Hiroto Sekiguchi