Patents by Inventor Erina SAITO

Erina SAITO 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).

  • ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND TONER CARTRIDGE
    Publication number: 20160085167
    Abstract: An electrostatic charge image developing toner includes toner particles containing a binder resin including a polyester resin, a release agent including a hydrocarbon wax, and a styrene (meth)acrylic resin, wherein 70% or more of the release agent with respect to the entire release agent is present within 800 nm from the surface of the toner particles, wherein the styrene (meth)acrylic resin forms domains having an average diameter of 0.3 ?m to 0.8 ?m in the toner particles, and wherein a number ratio of the domains included in a range of the average diameter ±0.1 ?m is less than 65%.
    Type: Application
    Filed: February 18, 2015
    Publication date: March 24, 2016
    Inventors: Kotaro YOSHIHARA, Noriyuki MIZUTANI, Tomoaki TANAKA, Eisuke IWAZAKI, Asafumi FUJITA, Narumasa SATO, Erina SAITO
  • ELECTROSTATIC CHARGE IMAGE DEVELOPING TONER, ELECTROSTATIC CHARGE IMAGE DEVELOPER, AND TONER CARTRIDGE
    Publication number: 20160070186
    Abstract: An electrostatic charge image developing toner includes toner particles containing a binder resin having a polyester resin and a styrene-(meth)acrylic acid alkyl copolymer resin, a release agent having a hydrocarbon release agent, and an oligomer which includes a styrene structure and whose content is in a range of 1% by weight to 6% by weight with respect to toner particles.
    Type: Application
    Filed: February 2, 2015
    Publication date: March 10, 2016
    Inventors: Erina SAITO, Noriyuki MIZUTANI, Daisuke ISHIZUKA, Kotaro YOSHIHARA, Yuki TAKAMIYA, Narumasa SATO, Yuka KAWAMOTO