Patents by Inventor Kazumi IMAE

Kazumi IMAE 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).

  • Publication number: 20150370188
    Abstract: A toner for developing an electrostatic image includes a toner particle. The toner particle contains a binder resin and a release agent. The binder resin contains an amorphous resin and a crystalline polyester resin. The toner satisfies the following formulae (1) and (2). In the formulae (1) and (2), Tmc (° C.) represents a melting peak temperature derived from the crystalline polyester resin and Tmw (° C.) represents a melting peak temperature derived from the release agent in a heating process in differential scanning calorimetry of the toner. Tmc>75(° C.)??Formula (1) |Tmw?Tmc|<10(° C.
    Type: Application
    Filed: May 29, 2015
    Publication date: December 24, 2015
    Inventors: Kaori MATSUSHIMA, Shiro HIRANO, Aya SHIRAI, Kouji SEKIGUCHI, Takaki KAWAMURA, Kazumi IMAE
  • Publication number: 20150177632
    Abstract: An electrostatic image developing toner includes a toner particle having a core-shell structure including a core portion containing a first polyester resin A, and a shell layer containing a second polyester resin B, the shell layer coating the core portion, wherein the second polyester resin B has at least a meta-phenylene skeleton, and the following relational expression (1) is satisfied: relational expression (1): 0?a<b, where a represents a content rate (mass %) of a meta-phenylene skeleton in the first polyester resin A, and b represents a content rate (mass %) of the meta-phenylene skeleton in the second polyester resin B.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 25, 2015
    Inventors: Kazumi IMAE, Tatsuya FUJISAKI, Kouji SUGAMA, Kaori MATSUSHIMA, Junya ONISHI, Aya SHIRAI, Takaki KAWAMURA