Jeong; Su-jong

Patent Applications and Registrations

Patent applications and USPTO patent grants for Jeong; Su-jong.The latest application filed is for "electrophotographic image-forming apparatus and charging voltage control method therefor".

Company Profile

0.6.6

Jeong; Su-jong - Suwon KR
Jeong; Su-jong - Gumi-si KR
Jeong, Su-jong - Suwon-City KR
Jeong; Su-jong - Gyunggi-do KR

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Electrophotographic image-forming apparatus and charging voltage control method thereof Grant 7,050,732 - Bae , et al. May 23, 2	2006-05-23
Image forming apparatus including a subsidiary transfer part having a fiber optic guide Grant 7,027,757 - Jeong April 11, 2	2006-04-11
Method of detecting lifespan of transfer roller and electrophotographic image forming apparatus employing the method Grant 7,016,618 - Jeong March 21, 2	2006-03-21
Charging voltage controller of image forming apparatus Grant 6,917,770 - Bae , et al. July 12, 2	2005-07-12
Method and apparatus for an electrophotographic printer where voltage magnitude applied to charge roller and intensity of illumination unit vary depending on type of print job submitted Grant 6,806,895 - Jeong October 19, 2	2004-10-19
Electrophotographic image-forming apparatus and charging voltage control method therefor App 20040190921 - Bae, Dyoung-chul ; et al.	2004-09-30
Method of detecting lifespan of transfer roller and electrophotographic image forming apparatus employing the method App 20040136735 - Jeong, Su-jong	2004-07-15
Image forming apparatus and method controlling a laser scan unit Grant 6,750,893 - Jeong June 15, 2	2004-06-15
Charging voltage controller of image forming apparatus App 20040005156 - Bae, Byoung-Chul ; et al.	2004-01-08
Image forming apparatus App 20030202820 - Jeong, Su-Jong	2003-10-30
Image forming apparatus for and method of compensating for density of image App 20030030716 - Jeong, Su-Jong	2003-02-13
Electrophotographic printing method and apparatus App 20020101496 - Jeong, Su-jong	2002-08-01

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