Patents by Inventor Ai Shiotsuka

Ai Shiotsuka 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: 10119571
    Abstract: A sealing device configured to seal a gap on a flange portion side between an outer member and an inner member by being attached to the outer member. A circular plate portion of a metal ring has an extending portion extending opposite to a flange portion. A seal body has a projecting portion and a weir portion, the projecting portion being positioned inward in a diametrical direction from the extending portion and extending toward the flange portion, the weir portion being positioned outward in a diametrical direction from the extending portion and extending toward the flange portion. The projecting portion and the weir portion overlap the extending portion in a diametrical direction, the projecting portion and the weir portion being provided adjacent to the extending portion, thereby forming a labyrinth. The labyrinth has a plurality of labyrinth constituting portions folding back along inner and outer faces of the extending portion in a diametrical direction, and the labyrinth is configured to meander.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: November 6, 2018
    Assignee: UCHIYAMA MANUFACTURING CORP.
    Inventors: Hiroshi Seno, Ai Shiotsuka
  • Publication number: 20160003302
    Abstract: A sealing device configured to seal a gap on a flange portion side between an outer member and an inner member by being attached to the outer member. A circular plate portion of a metal ring has an extending portion extending opposite to a flange portion. A seal body has a projecting portion and a weir portion, the projecting portion being positioned inward in a diametrical direction from the extending portion and extending toward the flange portion, the weir portion being positioned outward in a diametrical direction from the extending portion and extending toward the flange portion. The projecting portion and the weir portion overlap the extending portion in a diametrical direction, the projecting portion and the weir portion being provided adjacent to the extending portion, thereby forming a labyrinth. The labyrinth has a plurality of labyrinth constituting portions folding back along inner and outer faces of the extending portion in a diametrical direction, and the labyrinth is configured to meander.
    Type: Application
    Filed: June 25, 2015
    Publication date: January 7, 2016
    Inventors: Hiroshi SENO, Ai SHIOTSUKA
  • Patent number: 8049645
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: November 1, 2011
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Ai Shiotsuka, Yoshihiko Yamaguchi
  • Publication number: 20110006923
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Application
    Filed: September 20, 2010
    Publication date: January 13, 2011
    Inventors: Ai SHIOTSUKA, Yoshihiko YAMAGUCHI
  • Publication number: 20090267804
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Application
    Filed: July 9, 2009
    Publication date: October 29, 2009
    Inventors: Ai SHIOTSUKA, Yoshihiko YAMAGUCHI
  • Publication number: 20090009161
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Application
    Filed: September 8, 2008
    Publication date: January 8, 2009
    Inventors: Ai Shiotsuka, Yoshihiko Yamaguchi
  • Publication number: 20080048891
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Application
    Filed: October 4, 2007
    Publication date: February 28, 2008
    Inventors: Ai Shiotsuka, Yoshihiko Yamaguchi
  • Publication number: 20070115144
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Application
    Filed: January 5, 2007
    Publication date: May 24, 2007
    Inventors: Ai Shiotsuka, Yoshihiko Yamaguchi
  • Publication number: 20060214823
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Application
    Filed: May 25, 2006
    Publication date: September 28, 2006
    Inventors: Ai Shiotsuka, Yoshihiko Yamaguchi
  • Publication number: 20050073444
    Abstract: A cylindrical cover-attached encoder apparatus, including a magnetic metal-based body having a cylindrical shape, a magnetic rubber-based encoder having a cylindrical shape and formed around the outer peripheral surface of said magnetic metal-based cylindrical body, and a nonmagnetic material-based cover having a cylindrical shape and adapted to be mounted on said magnetic rubber-based encoder for covering the outer peripheral surface of the cylindrical portion of said magnetic rubber-based encoder.
    Type: Application
    Filed: October 7, 2004
    Publication date: April 7, 2005
    Inventors: Ai Shiotsuka, Yoshihiko Yamaguchi