Patents by Inventor Chihiro Asanuma

Chihiro Asanuma 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: 8828178
    Abstract: A sealing device which comprises a slinger fixedly fitted to the rotary side member, a core member fixedly fitted to the stationary side member, and an elastic sealing member fixed to the core member and having a seal lip which elastically and slidably contacts the slinger. The slinger comprises a fitting cylindrical portion to be fitted into the rotary side member, a brim portion extending its radial direction at one end of its outside relative to a sealed portion of the fitting cylindrical portion, and a rotary side fixing member fixed to the brim portion. Further, the slinger is made in such a manner that an adhesive layer is formed on its whole surface including a contacting side surface where the seal lip contacts by applying adhesive agent thereon, then the fixing member is integrally fixed thereto, thereafter the adhesive layer is partially removed only in the contacting side surface.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: September 9, 2014
    Assignee: Uchiyama Manufacturing Corp.
    Inventors: Hironori Yamamoto, Koki Ishida, Tatsuo Katayama, Tadashi Kasamoto, Yoshihiko Yamaguchi, Chihiro Asanuma
  • Publication number: 20120299250
    Abstract: A method for processing a rubber surface and a sealing member treated with the method. In the first mode, a rubber surface is formed with a large number of small dimples in a regularly dotted pattern by irradiating laser beams from a laser irradiation device. In the second mode, a skin layer of the rubber surface is removed by irradiating laser beams from the laser irradiation device. In the third mode, the first mode and the third mode are combined. A sealing member comprises rubber including a seal lip part for elastically and slidably contacting a counterpart member, wherein a sliding contact surface of the seal lip part contacting the counterpart member is treated with one of the first, the second and the third modes of the method for processing a rubber surface.
    Type: Application
    Filed: November 16, 2010
    Publication date: November 29, 2012
    Applicant: Uchiyama Manufacturing Corp.
    Inventors: Tomohisa Yamamoto, Tatsuo Katayama, Ritsuko Yokota, Chihiro Asanuma, Yutaka Mitooka, Makoto Hino
  • Publication number: 20120223484
    Abstract: A sealing device which comprises a slinger fixedly fitted to the rotary side member, a core member fixedly fitted to the stationary side member, and an elastic sealing member fixed to the core member and having a seal lip which elastically and slidably contacts the slinger. The slinger comprises a fitting cylindrical portion to be fitted into the rotary side member, a brim portion extending its radial direction at one end of its outside relative to a sealed portion of the fitting cylindrical portion, and a rotary side fixing member fixed to the brim portion. Further, the slinger is made in such a manner that an adhesive layer is formed on its whole surface including a contacting side surface where the seal lip contacts by applying adhesive agent thereon, then the fixing member is integrally fixed thereto, thereafter the adhesive layer is partially removed only in the contacting side surface.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 6, 2012
    Applicant: Uchiyama Manufacturing Corp.
    Inventors: Hironori Yamamoto, Koki Ishida, Tatsuo Katayama, Tadashi Kasamoto, Yoshihiko Yamaguchi, Chihiro Asanuma
  • Publication number: 20100090411
    Abstract: A sealing device for sealing a space between a rotary side member and a stationary side member which comprises a slinger with a specific structure is disclosed.
    Type: Application
    Filed: September 25, 2009
    Publication date: April 15, 2010
    Applicant: Uchiyama Manufacturing Corp.
    Inventors: Hironori Yamamoto, Koki Ishida, Tatsuo Katayama, Tadashi Kasamoto, Yoshihiko Yamaguchi, Chihiro Asanuma