Patents by Inventor Toshinobu Abiru

Toshinobu Abiru 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).

  • Thermal fixing-type developer material for electrophotography
    Patent number: 5407773
    Abstract: A thermal fixing-type developer material for electrophotography comprising a propylene-.alpha.-olefin copolymer wax (A) having a number average molecular weight (Mn) in the range of from 7,000 to 12,000; a binder (B); and a colorant (C).There is provided a thermal fixing-type developer material for electrophotography which, when used as a main component for an electrostatic toner, would provide a reprographic image which exhibits good release properties upon thermal fixing, a reduced adhesion to the heated roller or the photoreceptor, no offset or contamination, and a good fixing of the fixed image, and prevent the heated roll and the photoreceptor from undergoing contamination.
    Type: Grant
    Filed: October 15, 1993
    Date of Patent: April 18, 1995
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Harumi Furuta, Seiji Ohta, Hajime Inagaki, Mituhiko Onda, Toshinobu Abiru