Patents by Inventor Tomoyuki Kirigane

Tomoyuki Kirigane 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).

  • Cleaning blade, cleaning device, image forming apparatus, and process cartridge
    Patent number: 10514651
    Abstract: A cleaning blade includes an edge portion made of an elastic material having a rebound resilience value R35 at 35° C. and a 100% modulus value M35 at 35° C. that satisfy the relation R35??4.8 M35+42.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: December 24, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiko Watanabe, Hiroshi Nakai, Hiroshi Mizusawa, Tomoyuki Kirigane, Yasuhide Nakazawa
  • PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
    Publication number: 20180373198
    Abstract: A process cartridge includes an image bearer to bear a toner image, a lubricant supply device to supply a lubricant to the surface of the image bearer, and a blade made of elastic material, with the leading end abutting the surface of the image bearer, wherein the leading end is formed to have an elasticity power of from 65 to 93 percent, wherein the process cartridge is detachably attachable to an image forming apparatus.
    Type: Application
    Filed: June 26, 2018
    Publication date: December 27, 2018
    Inventors: Hiroshi Mizusawa, Hiroshi Nakai, Hisashi Kikuchi, Kazuhiko Watanabe, Sho Akiyama, Tomoyuki Kirigane, Kenji Komito