Patents by Inventor Kiyohiko Atami

Kiyohiko Atami 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: 10466610
    Abstract: The conductive member of this disclosure is formed of a UV cure resin obtained by curing under ultraviolet ray radiation a composition containing a urethane (meth)acrylate oligomer (A), a photo polymerization initiator (B) and an ionic conductive agent (C), wherein: the ionic conductive agent (C) contains an organic boron complex salt and a compound having a structure expressed with the following general formula (1), and a compounding amount of the organic boron complex salt is 0.2 parts by mass or more per 100 parts by mass of a curing component in the composition. —SO2-NX—SO2-??(1) (In the general formula (1), X represents an alkali metal.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 5, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Kiyohiko Atami, Takuro Sugimoto
  • Publication number: 20190041766
    Abstract: Provided are: a conductive roller in which detachment and scraping of particles from a surface layer are unlikely to occur; and a method of producing the same. A conductive roller 10 includes: a shaft 1; and an elastic layer 2 and a surface layer 3, which are sequentially formed on the outer circumference of the shaft 1. In this conductive roller 10, the surface layer 3 is composed of a mixture of a surface layer resin composition and particles, the surface layer resin composition contains a heat-curable or energy ray-curable urethane resin, and the particles are composed of a particle resin composition containing a urethane (meth)acrylate.
    Type: Application
    Filed: February 1, 2017
    Publication date: February 7, 2019
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Takehiro SANO, Kiyohiko ATAMI
  • Publication number: 20170242361
    Abstract: The conductive member of this disclosure is formed of a UV cure resin obtained by curing under ultraviolet ray radiation a composition containing a urethane (meth)acrylate oligomer (A), a photo polymerization initiator (B) and an ionic conductive agent (C), wherein: the ionic conductive agent (C) contains an organic boron complex salt and a compound having a structure expressed with the following general formula(1), and a compounding amount of the organic boron complex salt is 0.2 parts by mass or more per 100 parts by mass of a curing component in the composition. —SO2—NX—SO2— ??(1) (In the general formula (1), X represents an alkali metal.
    Type: Application
    Filed: August 3, 2015
    Publication date: August 24, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kiyohiko ATAMI, Takuro SUGIMOTO
  • Publication number: 20120296000
    Abstract: Provided are a photocurable resin composition which has a short time required for curing to make it possible to enhance the productivity and which can provide a light-emitting element sealant having an excellent heat resistance and an excellent optical transparency and a light-emitting element sealant prepared by using the above photocurable resin composition. To be specific, provided are a photocurable resin composition comprising 100 parts by mass of an end-modified hydrogenated styrene-butadiene rubber (A) and 0.1 to 13 parts by mass of an ?-hydroxyalkylphenone base photopolymerization initiator and/or an acylphosphine oxide base photopolymerization initiator and a light-emitting element sealant prepared by using the above photocurable resin composition (B).
    Type: Application
    Filed: January 14, 2011
    Publication date: November 22, 2012
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Toshihiko Kurata, Naoyuki Oomori, Kiyohiko Atami