Douk-soon Cha

Person

Seongnam-si, KR

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus with printing medium guide
- Patent number 7,437,118
- Issue date Oct 14, 2008
- Samsung Electronics Co., Ltd.
- Byung-sun Ahn
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
One-way power transmission unit, a fusing unit driving apparatus fo...
- Patent number 7,185,747
- Issue date Mar 6, 2007
- Samsung Electronics Co., Ltd.
- Douk-soon Cha
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Coupling apparatus, development cartridge and electrophotographic p...
- Patent number 6,892,042
- Issue date May 10, 2005
- Samsung Electronics Co., Ltd.
- Kyung-hwan Jang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Coupling apparatus, development cartridge and electrophotographic p...
- Patent number 6,768,890
- Issue date Jul 27, 2004
- Samsung Electronics Co., Ltd.
- Mun-son Cho
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
POWER TRANSMISSION DEVICE, DRIVE TRANSMITTING APPARATUS OF IMAGE FO...
- Publication number 20080226344
- Publication date Sep 18, 2008
- Samsung Electronics Co., Ltd.
- Douk-soon Cha
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080031670
- Publication date Feb 7, 2008
- Samsung Electronics Co., Ltd.
- Jong-woo KIM
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20060104680
- Publication date May 18, 2006
- SAMSUNG ELECTRONICS CO., LTD.
- Byung-sun Ahn
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
One-way power transmission unit, a fusing unit driving apparatus fo...
- Publication number 20050241902
- Publication date Nov 3, 2005
- Douk-soon Cha
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Coupling apparatus, development cartridge and electrophotographic p...
- Publication number 20030059233
- Publication date Mar 27, 2003
- Samsung Electronics Co., Ltd.
- Kyung-Hwan Jang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Coupling apparatus, development cartridge and electrophotographic p...
- Publication number 20030053823
- Publication date Mar 20, 2003
- Samsung Electronics Co., Ltd.
- Mun-son Cho
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Douk-soon Cha

Person

Patents Grantslast 30 patents

Image forming apparatus with printing medium guide

One-way power transmission unit, a fusing unit driving apparatus fo...

Coupling apparatus, development cartridge and electrophotographic p...

Coupling apparatus, development cartridge and electrophotographic p...

Patents Applicationslast 30 patents

POWER TRANSMISSION DEVICE, DRIVE TRANSMITTING APPARATUS OF IMAGE FO...

IMAGE FORMING APPARATUS

Image forming apparatus

One-way power transmission unit, a fusing unit driving apparatus fo...

Coupling apparatus, development cartridge and electrophotographic p...

Coupling apparatus, development cartridge and electrophotographic p...