Patents by Inventor Mariko YAMAGUCHI

Mariko YAMAGUCHI 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: 11881005
    Abstract: It is possible to inhibit deterioration of extraction precision of a subject and reliably extract the subject even when colors of the subject and a background are the same or similar. An image processing device 1 includes an input unit 11 configured to input a first invisible light image of only a background in which a subject is not included and a second invisible light image in which the subject and the background are included and a subject region extraction unit 15 configured to calculate a difference between a pixel value of each pixel of the second invisible light image and a pixel value of a corresponding pixel of the first invisible light image, determine whether the pixel is in a subject region or a background region in accordance with whether the difference is equal to or greater than a predetermined threshold, and extract the subject region from the second invisible light image.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: January 23, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Jiro Nagao, Mariko Yamaguchi, Hidenobu Nagata, Kota Hidaka
  • Publication number: 20210327069
    Abstract: It is possible to inhibit deterioration of extraction precision of a subject and reliably extract the subject even when colors of the subject and a background are the same or similar. An image processing device 1 includes an input unit 11 configured to input a first invisible light image of only a background in which a subject is not included and a second invisible light image in which the subject and the background are included and a subject region extraction unit 15 configured to calculate a difference between a pixel value of each pixel of the second invisible light image and a pixel value of a corresponding pixel of the first invisible light image, determine whether the pixel is in a subject region or a background region in accordance with whether the difference is equal to or greater than a predetermined threshold, and extract the subject region from the second invisible light image.
    Type: Application
    Filed: July 31, 2019
    Publication date: October 21, 2021
    Inventors: Jiro Nagao, Mariko Yamaguchi, Hidenobu Nagata, Kota HIDAKA
  • Patent number: 9506171
    Abstract: A bead weaving tool includes a plate member having a planar bead mounting surface for bead placement. The plate member has a pair of thread holding portions mutually spaced across the bead mounting surface for holding a plurality of threads separately. The plate member also has a pair of thread support walls protruding from the bead mounting surface at positions close to the thread holding portions, respectively. To hook one end and the other end of the respective threads, first and second thread hanging portions are provided.
    Type: Grant
    Filed: May 5, 2015
    Date of Patent: November 29, 2016
    Assignee: CLOVER MFG. CO., LTD.
    Inventors: Kumiko Nitta, Mariko Yamaguchi
  • Patent number: 9243358
    Abstract: A guiding tool for a sewing machine includes a first guiding member and a second guiding member. Each of the first guiding member and the second guiding member includes a base portion having a predetermined periphery, a guide surface facing to a side of the base portion, and a connecting portion for connection of the first guiding member and the second guiding member. The base portion includes a bottom surface provided with an attaching portion for attaching the guiding tool to an attachment surface of an object due to adhesion or suction. The guide surface of the first guiding member and the guide surface of the second guiding member are configured to be flush with each other when the first guiding member and the second guiding member are connected to each other.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: January 26, 2016
    Assignee: CLOVER MFG. CO., LTD.
    Inventor: Mariko Yamaguchi
  • Publication number: 20150337466
    Abstract: A bead weaving tool includes a plate member having a planar bead mounting surface for bead placement. The plate member has a pair of thread holding portions mutually spaced across the bead mounting surface for holding a plurality of threads separately. The plate member also has a pair of thread support walls protruding from the bead mounting surface at positions close to the thread holding portions, respectively. To hook one end and the other end of the respective threads, first and second thread hanging portions are provided.
    Type: Application
    Filed: May 5, 2015
    Publication date: November 26, 2015
    Inventors: Kumiko NITTA, Mariko YAMAGUCHI
  • Publication number: 20150047542
    Abstract: A guiding tool for a sewing machine includes a first guiding member and a second guiding member. Each of the first guiding member and the second guiding member includes a base portion having a predetermined periphery, a guide surface facing to a side of the base portion, and a connecting portion for connection of the first guiding member and the second guiding member. The base portion includes a bottom surface provided with an attaching portion for attaching the guiding tool to an attachment surface of an object due to adhesion or suction. The guide surface of the first guiding member and the guide surface of the second guiding member are configured to be flush with each other when the first guiding member and the second guiding member are connected to each other.
    Type: Application
    Filed: August 12, 2014
    Publication date: February 19, 2015
    Inventor: Mariko YAMAGUCHI
  • Patent number: D737340
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: August 25, 2015
    Assignee: CLOVER MFG. CO., LTD.
    Inventors: Rie Shirai, Mariko Yamaguchi
  • Patent number: D737341
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: August 25, 2015
    Assignee: CLOVER MFG. CO., LTD.
    Inventors: Rie Shirai, Mariko Yamaguchi