Patents by Inventor Mayoko Maruyama

Mayoko Maruyama 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).

  • Developer carrying member, developing assembly, image forming apparatus, and process cartridge
    Patent number: 5860050
    Abstract: A developer carrying member includes a substrate, the surface of which is covered with a conducting layer. The conducting layer contains a binder resin and conducting spherical particles dispersed therein having a number average particle diameter of from 0.3 .mu.m to 30 .mu.m and a true density of 3 g/cm.sup.3 or below.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: January 12, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayoshi Shimamura, Yasuhide Goseki, Kenji Fujishima, Michiko Orihara, Kazunori Saiki, Mayoko Maruyama, Takuya Toyooka