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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4801968 B1

PDFFull Text
Date of Patent:
Jan. 31, 1989

Filed:

Mar. 13, 1987

Fixing device including a heat roller having a device for heating a

Applicant:
Inventors:

Mitutosi Kogure, Yokohama, JP;

Yuka Nakamura, Kamakura, JP;

Makoto Tamura, Ohta, JP;

Keiji Itaya, Yokohama, JP;

Assignee:

Kabushiki Kaisha Toshiba, Kawasaki, JP;

Attorney:

Cushman, Darby & Cushman

Primary Examiner:

Arthur T Grimley

Assistant Examiner:

J Pendergrass

Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355 / ; 355 / ; 355 / ; 219216 ;
Abstract

A fixing device for image forming apparatus utilizing image forming media of a plurality of different widths, comprises a core roller and a supporting roller parallel to and in contact with the core roller to supports the selected one of the image forming media with the toner image thereon and transporting the selected image forming medium, an electrically resistive heat layer on the core roller and a plurality of power supply electrodes for supplying power to at least two portions of the electrically resistive heat layer having sizes corresponding to the widths of at least two of the image forming media.

Find Patent Forward Citations

Kogure, Mitutosi. (1989). Fixing device including a heat roller having a device for heating a (U.S. Patent No. 4801968). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4801968

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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