Inventor

Ki-jae Do

Inventor

Suwon-si, KR

Overview

1998–2014

Patent span

Physics

Primary field (CPC G)

Patents· 15 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography83%

B42DBooks6%

B42PIndexing scheme relating to books, filing appliances or the like6%

Y10TTechnical subjects covered by former us classification6%

PatentTitleYear

8,831,474'Developing device and image forming apparatus including the same'2014 8,660,447'Multi-pass image forming apparatus having voltage divider'2014 8,577,265'Developing device usable with image forming apparatus and developer delivery device thereof including a plurality of rotatable delivery members'2013 8,538,297'Charging apparatus using charging tube and image forming apparatus having the same'2013 8,280,274'Roller, developing unit and image forming apparatus having the same, and method of manufacturing roller'2012 8,139,988'Developing device of image forming apparatus'2012 8,032,061'Electrophotographic image forming apparatus having transparent toner and white toner'2011 7,941,078'Electrophotographic image forming apparatus having transparent toner'2011 7,831,175'Developer cartridge guide unit and image forming apparatus having the same'2010 7,221,881'Image forming apparatus controlling charge of toner and method thereof'2007 7,058,334'Electro-photographic image forming apparatus having a function for preventing toner for scattering and control method for the same'2006 7,039,333'Developing device having developing gap detecting function'2006 6,839,536'Toner layer regulating member and developing device using the same'2005 5,867,750'Device for adjusting toner concentration of printed image in an image forming apparatus using electrophotographic developing process'1999 5,809,367'Method of automatically controlling transfer voltage and fusing temperature in an electrophotographic printing apparatus'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998–2014Patents assigned to SAMSUNG ELECTRONICS CO LTD (15)· patent assignee history

1998–2014Based in Suwon-si, KR· patent location history

2005Based in Gyeonggi-do, KR· patent location history

2012–2014Patents assigned to DO KI-JAE (4)· patent assignee history

2012–2013Patents assigned to DO KI JAE (2)· patent assignee history

2013–2014Patents assigned to JEON IN-CHEOL (2)· patent assignee history

2013–2014Patents assigned to JOO JONG-HWA (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SAMSUNG ELECTRONICS CO LTD	15	1998–2014
DO KI-JAEself	4	2012–2014
DO KI JAEself	2	2012–2013
JEON IN-CHEOL	2	2013–2014
JOO JONG-HWA	2	2013–2014

Locations

Location	Patents	Span
Suwon-si, KR	14	1998–2014
Gyeonggi-do, KR	1	2005