Whanjin Roh

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Safety venting mechanism with tearing tooth structure for batteries
- Patent number 8,257,848
- Issue date Sep 4, 2012
- A123 Systems, Inc.
- Mujeeb Ijaz
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Stacked lithium secondary battery and its fabrication utilizing a f...
- Patent number 8,067,112
- Issue date Nov 29, 2011
- Enerland Co., Ltd.
- Whanjin Roh
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Supercapacitor with reduced internal resistance
- Patent number 7,558,050
- Issue date Jul 7, 2009
- Enerland Co., Ltd.
- Whanjin Roh
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Uninterruptible power supply for the backup of AC-power supply
- Patent number 7,259,475
- Issue date Aug 21, 2007
- Eppscore Co., Ltd.
- Myoung-shin Hong
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of preparing an electrode for lithium based secondary cell
- Patent number 6,143,444
- Issue date Nov 7, 2000
- Samsung Display Devices Co., Ltd.
- Whanjin Roh
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SAFETY VENTING MECHANISM FOR BATTERIES
- Publication number 20100247996
- Publication date Sep 30, 2010
- A123 Systems, Inc.
- Mujeeb IJAZ
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Supercapacitor with Reduced Internal Resistance
- Publication number 20080212260
- Publication date Sep 4, 2008
- Whanjin Roh
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Uninterruptible power supply for the back up of ac-power supply
- Publication number 20060170289
- Publication date Aug 3, 2006
- Myoung-shin Hong
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Stacked lithium secondary battery and its fabrication
- Publication number 20060088759
- Publication date Apr 27, 2006
- Whanjin Roh
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Separation for a lithium ion secondary battery, method for producin...
- Publication number 20030072996
- Publication date Apr 17, 2003
- Whanjin Roh
- H01 - BASIC ELECTRIC ELEMENTS