Patents by Inventor Isao Harashima

Isao Harashima 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: 20130343789
    Abstract: Provided is an electrically conductive roller capable of preventing the occurrence of filming for a long time and of providing toners with a desired quantity of electric charge, and a development apparatus and an image-forming device capable of forming high quality images for a long time. The electrically conductive roller has a urethane coat layer that contains a urethane resin and a particulate amino resin, wherein the urethane coat layer is formed on an outer circumferential face of an elastic layer, and a development apparatus and image-forming device equipped with the electrically conductive roller.
    Type: Application
    Filed: January 19, 2012
    Publication date: December 26, 2013
    Applicants: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., SHIN-ETSU POLYMER CO., LTD.
    Inventors: Sokuei Motoda, Ryo Nakajima, Isao Harashima, Kiyoshi Ootani, Norihiko Akegamiyama
  • Patent number: 6362267
    Abstract: A powder coating composition according to the present invention is used in the coating of a molded product having wrinkles, cavities and the like in its surface. The powder coating composition contains a single film forming resin or a plurality of film forming resins having a melt viscosity of 60 Pa·s/165° C. or less and selected from the group consisting of an epoxy resin, a polyester resin and an acrylic resin, and at least two fillers having different particle size in a range of 3 to 100 &mgr;m. Thus, the powder coating composition is applied directly onto a to-be-coated-surface without need for a pretreatment such as the sanding of the surface and the filling of the surface by a patty. Therefore, a molding failure of the surface can be hidden satisfactorily to form a coated surface excellent in design. Moreover, an organic solvent or the like is not used, and hence, the air pollution is prevented, and the danger of a fire is reduced remarkably.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: March 26, 2002
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Isao Harashima, Masayuki Takahashi, Junto Suzuki, Nobuo Takezawa