Patents by Inventor Powdertech Co., Ltd.

Powdertech Co., Ltd. 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).

  • POROUS FERRITE CORE MATERIAL FOR ELECTROPHOTOGRAPHIC DEVELOPER, RESIN-COATED FERRITE CARRIER AND ELECTROPHOTOGRAPHIC DEVELOPER USING THE FERRITE CARRIER
    Publication number: 20130183614
    Abstract: A porous ferrite core material for an electrophotographic developer wherein the apparent density thereof is 1.5 to 1.9 g/cm3, the shape factor SF-2 thereof is 101 to 110 and the magnetization as measured with a VSM at 1K·1000/4?·A/m is 40 to 60 Am2/kg, a resin-coated ferrite carrier for an electrophotographic developer obtained by coating the surface of the porous ferrite core material with a resin, and an electrophotographic developer using the ferrite carrier.
    Type: Application
    Filed: January 10, 2013
    Publication date: July 18, 2013
    Applicant: POWDERTECH CO., LTD.
    Inventor: Powdertech Co., Ltd.