Patents by Inventor Maia Kamei

Maia Kamei 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).

  • Toner, developer, process cartridge, image forming apparatus, image forming method, and method for manufacturing toner
    Patent number: 10429756
    Abstract: A toner is provided. The toner comprises a glittering pigment and a coloring pigment. The glittering pigment is disposed inside the toner. The coloring pigment comprises a yellow pigment comprising an isoindoline pigment.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: October 1, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuoki Fuwa, Hiroshi Yamashita, Yuka Mizoguchi, Shizuka Hashida, Toma Takebayashi, Junko Yamaguchi, Maia Kamei, Keisuke Ohta
  • TONER, DEVELOPER, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND METHOD FOR MANUFACTURING TONER
    Publication number: 20180364600
    Abstract: A toner is provided. The toner comprises a glittering pigment and a coloring pigment. The glittering pigment is disposed inside the toner. The coloring pigment comprises a yellow pigment comprising an isoindoline pigment.
    Type: Application
    Filed: June 15, 2018
    Publication date: December 20, 2018
    Inventors: Kazuoki FUWA, Hiroshi Yamashita, Yuka Mizoguchi, Shizuka Hashida, Toma Takebayashi, Junko Yamaguchi, Maia Kamei, Keisuke Ohta