logo

For the Inventor, By the Inventor

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 4634259 B1

PDFFull Text
Date of Patent:
Jan. 06, 1987

Filed:

Dec. 11, 1984

Apparatus for maintaining distinct edges between two colors in a

Applicant:
Inventors:

Mitsugu Oishi, Tokyo, JP;

Hidefumi Kanai, Tokyo, JP;

Assignees:

Casio Computer Co., Ltd., Tokyo, JP;

Casio Electronics Manufacturing Co., Ltd., Tokyo, JP;

Attorney:

Sandler & Greenblum

Primary Examiner:

Arthur T Grimley

Assistant Examiner:

J Pendegrass

Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
355-4 ; 355 / ; 430 42 ; 430902 ;
Abstract

Two-color image forming apparatus has a bipolar photosensitive body, a first charging means, a first electrostatic latent image forming means, a first developing means, a second charging means, a second electrostatic latent image forming means, and a second developing means. The second charging means is a corona discharger having a corona ion stream control screen forming by laminating a conductive member with an insulating member and disposed at or near an open portion for radiating a corona ion.

Find Patent Forward Citations

Oishi, Mitsugu. (1987). Apparatus for maintaining distinct edges between two colors in a (U.S. Patent No. 4634259). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4634259

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

Loading…