Patents by Inventor Tomoya Uesugi

Tomoya Uesugi 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).

  • Publication number: 20140105646
    Abstract: Provided is an electrophotographic member, which hardly changes in performance even when being left to stand for a long time period. The electrophotographic member comprises a support, an elastic layer formed on the support, and a surface layer covering a surface of the elastic layer and containing a urethane resin, and in which the urethane resin comprises a reaction product of: a hydroxyl group-terminated prepolymer obtained by reacting a polyester polyol with a polyisocyanate; and an isocyanate-terminated prepolymer obtained by reacting a polyester polyol with a polyisocyanate.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Kazutoshi Ishida, Masaki Yamada, Minoru Ito, Kazuhito Wakabayashi, Tomoya Uesugi
  • Publication number: 20140093278
    Abstract: A high quality electrophotographic member that is excellent in deformation recovery property under high-temperature and high-humidity and that also satisfies filming resistance under low-temperature and low-humidity is provided. The electrophotographic member includes a substrate, an elastic layer, and a surface layer containing a urethane resin, wherein the urethane resin has a partial structure having at least one structure selected from the group consisting of structures of structural formulae (1) to (7) between adjacent two urethane linkages, and the urethane resin further has a partial structure derived from a reaction of a compound represented by a structural formula (8) with a polyisocyanate.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 3, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masaki Yamada, Kazutoshi Ishida, Minoru Ito, Kazuhito Wakabayashi, Tomoya Uesugi
  • Publication number: 20130004202
    Abstract: An electrophotographic member whose performances are hardly changed even after a long-term use is provided. An electrophotographic member having a mandrel, an elastic layer and a surface layer, wherein the surface layer contains a titanium oxide film having chemical bonds represented by the following formula (1) and formula (2) is provided.
    Type: Application
    Filed: September 13, 2012
    Publication date: January 3, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazutoshi Ishida, Hidenori Satoh, Tomoya Uesugi