Patents by Inventor Hiroyuki Takanashi

Hiroyuki Takanashi 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).

  • Electrically conductive roller and image-forming device
    Patent number: 8968168
    Abstract: This invention provides an electrically conductive roller capable of forming an image without fogging even in a low humidity environment and an image-forming device. Specifically, the invention relates to an electrically conductive roller has an elastic layer formed on an outer circumferential surface of a shaft and a urethane coat layer formed on an outer circumferential surface of the elastic layer, wherein the urethane coat layer includes a urethane resin, and at least one ionic liquid selected from the group consisting of pyridinium ionic liquids and amine ionic liquids, in an amount from 1 to 20 parts by mass to 100 parts by mass of the urethane resin; and an image-forming device equipped with the electrically conductive roller.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: March 3, 2015
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Tomoharu Takeuchi, Hiroyuki Takanashi, Taichi Ohkubo
  • Electrically Conductive Roller and Image-Forming Device
    Publication number: 20120134714
    Abstract: This invention provides an electrically conductive roller capable of forming an image without fogging even in a low humidity environment and an image-forming device. Specifically, the invention relates to an electrically conductive roller has an elastic layer formed on an outer circumferential surface of a shaft and a urethane coat layer formed on an outer circumferential surface of the elastic layer, wherein the urethane coat layer includes a urethane resin, and at least one ionic liquid selected from the group consisting of pyridinium ionic liquids and amine ionic liquids, in an amount from 1 to 20 parts by mass to 100 parts by mass of the urethane resin; and an image-forming device equipped with the electrically conductive roller.
    Type: Application
    Filed: August 21, 2009
    Publication date: May 31, 2012
    Applicant: SHIN-ETSU POLYMER CO., LTD.
    Inventors: Tomoharu Takeuchi, Hiroyuki Takanashi, Taichi Ohkubo