Patents by Inventor Shinichirou Kawashima

Shinichirou Kawashima 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 latent image developing toner, and method for manufacturing electrostatic latent image developer and electrostatic latent image developing toner
    Patent number: 7364826
    Abstract: There is provided an electrostatic latent image developing toner including a binder resin, a colorant, and a release agent, wherein the shape factor SF1 of the toner is within the range from 110 to 140, the volume average particle size of the toner is within the range from 1.2 ?m to 4.8 ?m, and the crystallinity of the release agent within the toner is within the range from 35 to 80. There is also provided a method for manufacturing such a toner.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: April 29, 2008
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takahisa Fujii, Hiroyoshi Okuno, Shinichirou Kawashima, Takeshi Iwanaga, Toshiaki Hasegawa
  • Electrostatic latent image developing toner, and method for manufacturing electrostatic latent image developer and electrostatic latent image developing toner
    Publication number: 20050181295
    Abstract: There is provided an electrostatic latent image developing toner including a binder resin, a colorant, and a release agent, wherein the shape factor SF1 of the toner is within the range from 110 to 140, the volume average particle size of the toner is within the range from 1.2 ?m to 4.8 ?m, and the crystallinity of the release agent within the toner is within the range from 35 to 80. There is also provided a method for manufacturing such a toner.
    Type: Application
    Filed: August 2, 2004
    Publication date: August 18, 2005
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takahisa Fujii, Hiroyoshi Okuno, Shinichirou Kawashima, Takeshi Iwanaga, Toshiaki Hasegawa