Patents by Inventor Taku YAMOTO

Taku YAMOTO 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).

  • Developing roller of electrophotographic device without prone to scumming in a nonprinting area
    Patent number: 11906909
    Abstract: The purpose of the present invention is to provide a developing roller which is not prone to scumming in a nonprinting area. The solution is to provide a developing roller which has an elastic layer, a coat layer formed on the elastic layer, and end portion coat layers formed on outermost surfaces on two axial end portions, wherein the end portion coat layer contains a conductive material.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: February 20, 2024
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Taku Yamoto, Kimiya Goto, Hideki Norisada
  • Developing roller of electrophotographic device without prone to scumming in a nonprinting area
    Patent number: 11868062
    Abstract: The purpose of the present invention is to provide a developing roller which is not prone to scumming in a nonprinting area. The solution is to provide a developing roller which has an elastic layer, a coat layer formed on the elastic layer, and end portion coat layers formed on outermost surfaces on two axial end portions, wherein the end portion coat layer contains a conductive material.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: January 9, 2024
    Assignee: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Taku Yamoto, Kimiya Goto, Hideki Norisada
  • DEVELOPING ROLLER
    Publication number: 20220197182
    Abstract: The purpose of the present invention is to provide a developing roller which is not prone to scumming in a nonprinting area. The solution is to provide a developing roller which has an elastic layer, a coat layer formed on the elastic layer, and end portion coat layers formed on outermost surfaces on two axial end portions, wherein the end portion coat layer contains a conductive material.
    Type: Application
    Filed: June 30, 2020
    Publication date: June 23, 2022
    Applicant: BANDO CHEMICAL INDUSTRIES, LTD.
    Inventors: Taku YAMOTO, Kimiya GOTO, Hideki NORISADA