Patents by Inventor Takayuki Shouda

Takayuki Shouda 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).

  • Electrophotographic photoreceptor, electrophotographic photoreceptor cartridge, and image forming apparatus
    Patent number: 10203616
    Abstract: The present invention relates to an electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer contains a charge transport substance, a binder resin, and a compound which has a molecular weight of equal to or less than 350, and is represented by General Formula (1).
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: February 12, 2019
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Atsushi Yoshizawa, Wataru Miyashita, Mitsuo Wada, Akiteru Fujii, Takayuki Shouda
  • ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTOR CARTRIDGE, AND IMAGE FORMING APPARATUS
    Publication number: 20170285498
    Abstract: The present invention relates to an electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer contains a charge transport substance, a binder resin, and a compound which has a molecular weight of equal to or less than 350, and is represented by General Formula (1).
    Type: Application
    Filed: June 14, 2017
    Publication date: October 5, 2017
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Atsushi YOSHIZAWA, Wataru MIYASHITA, Mitsuo WADA, Akiteru FUJII, Takayuki SHOUDA
  • Polymer and organic electroluminescent element
    Patent number: 9299933
    Abstract: The present invention relates to a polymer comprising a repeating unit containing a specific partial structure and a repeating unit containing a crosslinking group, a composition for an organic electroluminescent element comprising the polymer, and an organic electroluminescent element comprising an organic layer formed using the composition for an organic electroluminescent element by a wet film formation method.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: March 29, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tatsushi Baba, Yanjun Li, Koichiro Iida, Hideki Gorohmaru, Emi Nakamoto, Takayuki Shouda
  • POLYMER AND ORGANIC ELECTROLUMINESCENT ELEMENT
    Publication number: 20150041797
    Abstract: The present invention relates to a polymer comprising a repeating unit containing a specific partial structure and a repeating unit containing a crosslinking group, a composition for an organic electroluminescent element comprising the polymer, and an organic electroluminescent element comprising an organic layer formed using the composition for an organic electroluminescent element by a wet film formation method.
    Type: Application
    Filed: August 25, 2014
    Publication date: February 12, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tatsushi BABA, Yanjun Li, Koichiro Iida, Hideki Gorohmaru, Emi Nakamoto, Takayuki Shouda
  • Electrophotographic photoreceptor
    Patent number: 5932384
    Abstract: An electrophotographic photoreceptor having a photosensitive layer containing a charge generation material and a charge transport material on an electroconductive substrate, wherein the charge transport material has a polarizability .alpha. of the formula, .alpha.>100 (.ANG..sup.3) and a dipole moment P of the formula, P<1.6 (D).
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: August 3, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Teruyuki Mitsumori, Takayuki Shouda, Akiteru Fujii, Mikiko Sato