Patents by Inventor Kohta SHIODERA

Kohta SHIODERA 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).

  • Fixing-unit roller, fixing unit, and image forming apparatus including an elastic layer
    Patent number: 8948673
    Abstract: A fixing-unit roller includes: a core bar; and an elastic layer formed on an outer peripheral surface of the core bar. The elastic layer is formed from a porous material that contains a plurality of cells. Cells in a cross section obtained by cutting across the porous material are 0.1 ?m or greater and 50 ?m or less in size. A ratio of an area occupied by composite cells, which are made of partially-overlapping spherical cells, in a 200-?m square in the cross section to an area of the square is 60% or greater and 70% or less.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: February 3, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Katsunori Suto, Norihiko Aze, Takeshi Endoh, Masayuki Kami, Toru Kobayashi, Kohta Shiodera
  • FIXING-UNIT ROLLER, FIXING UNIT, AND IMAGE FORMING APPARATUS
    Publication number: 20130209148
    Abstract: A fixing-unit roller includes: a core bar; and an elastic layer formed on an outer peripheral surface of the core bar. The elastic layer is formed from a porous material that contains a plurality of cells. Cells in a cross section obtained by cutting across the porous material are 0.1 ?m or greater and 50 ?m or less in size. A ratio of an area occupied by composite cells, which are made of partially-overlapping spherical cells, in a 200-?m square in the cross section to an area of the square is 60% or greater and 70% or less.
    Type: Application
    Filed: February 1, 2013
    Publication date: August 15, 2013
    Inventors: Katsunori SUTO, Norihiko AZE, Takeshi ENDOH, Masayuki KAMI, Toru KOBAYASHI, Kohta SHIODERA