Yun-Ching Ma

Person

Jun-Ho, TW

People

Patents Grantslast 30 patents

Information Patent Grant
Over-current protection device
- Patent number 7,203,049
- Issue date Apr 10, 2007
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Over-current protection apparatus
- Patent number 7,071,810
- Issue date Jul 4, 2006
- Polytronics Technology Corporation
- Yun Ching Ma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Over-current protection device
- Patent number 6,898,063
- Issue date May 24, 2005
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Over-current protection apparatus for high voltage
- Patent number 6,853,527
- Issue date Feb 8, 2005
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Over-current protection device
- Patent number 6,809,626
- Issue date Oct 26, 2004
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Surface mountable device
- Patent number 6,806,519
- Issue date Oct 19, 2004
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Over-current protection apparatus and method for making the same
- Patent number 6,794,980
- Issue date Sep 21, 2004
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Surface mountable over-current protecting apparatus
- Patent number 6,665,164
- Issue date Dec 16, 2003
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Over-current protection apparatus
- Patent number 6,512,446
- Issue date Jan 28, 2003
- Polytronics Technology Corporation
- David Shau-Chew Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Printed circuit board comprising an embedded functional element the...
- Patent number 6,487,084
- Issue date Nov 26, 2002
- Polytronics Technology Corporation
- Edward Fu-Hua Chu
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrical devices comprising conductive polymer blend compositions
- Patent number 6,479,575
- Issue date Nov 12, 2002
- Polytronics Technology Corporation
- Fu-Hua Chu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Surface mountable over-current protecting device
- Patent number 6,377,467
- Issue date Apr 23, 2002
- Polytronics Technology Corporation
- Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Over-current protection device and manufacturing method thereof
- Publication number 20070057760
- Publication date Mar 15, 2007
- Polytronics Technology Corporation
- Shau Chew Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection device and manufacturing method thereof
- Publication number 20060261922
- Publication date Nov 23, 2006
- Fu Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Conductive composition exhibiting PTC behavior and over-current pro...
- Publication number 20060108566
- Publication date May 25, 2006
- Yun Ching Ma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Temperature sensor
- Publication number 20050232334
- Publication date Oct 20, 2005
- Polytronics Technology Corporation
- Yun-Ching Ma
- G01 - MEASURING TESTING
Information Patent Application
Over-current protection device and manufacturing method thereof
- Publication number 20050140492
- Publication date Jun 30, 2005
- Fu Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection apparatus
- Publication number 20050141160
- Publication date Jun 30, 2005
- Yun Ching Ma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection device
- Publication number 20050047041
- Publication date Mar 3, 2005
- Yun-Ching Ma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection device
- Publication number 20050036257
- Publication date Feb 17, 2005
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection apparatus with high voltage endurance
- Publication number 20040227611
- Publication date Nov 18, 2004
- Edward F. Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection device and manufacturing method thereof
- Publication number 20040134599
- Publication date Jul 15, 2004
- Polytronics Technology Corporation
- David Shau-Chew Wang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Over-current protection device
- Publication number 20040022001
- Publication date Feb 5, 2004
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection device
- Publication number 20040008465
- Publication date Jan 15, 2004
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Conductive composition exhibiting PTC behavior
- Publication number 20030111648
- Publication date Jun 19, 2003
- Edward Fu-Hua Chu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Multi-layer structure of a battery protection device
- Publication number 20030099077
- Publication date May 29, 2003
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection device and apparatus thereof
- Publication number 20030090855
- Publication date May 15, 2003
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection apparatus for high voltage
- Publication number 20030086221
- Publication date May 8, 2003
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection device
- Publication number 20030076643
- Publication date Apr 24, 2003
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Surface mountable device
- Publication number 20030067054
- Publication date Apr 10, 2003
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection apparatus and method for making the same
- Publication number 20030067729
- Publication date Apr 10, 2003
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Printed circuit board comprising an embedded functional element the...
- Publication number 20020170747
- Publication date Nov 21, 2002
- Edward Fu-Hua Chu
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Over-current protecting apparatus
- Publication number 20020135985
- Publication date Sep 26, 2002
- Edward Fu-Hua Chu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Over-current protection apparatus
- Publication number 20020109576
- Publication date Aug 15, 2002
- Polytronics Technology Corporation
- David Shau-Chew Wang
- H01 - BASIC ELECTRIC ELEMENTS

Yun-Ching Ma

Person

Patents Grantslast 30 patents

Over-current protection device

Over-current protection apparatus

Over-current protection device

Over-current protection apparatus for high voltage

Over-current protection device

Surface mountable device

Over-current protection apparatus and method for making the same

Surface mountable over-current protecting apparatus

Over-current protection apparatus

Printed circuit board comprising an embedded functional element the...

Electrical devices comprising conductive polymer blend compositions

Surface mountable over-current protecting device

Patents Applicationslast 30 patents

Over-current protection device and manufacturing method thereof

Over-current protection device and manufacturing method thereof

Conductive composition exhibiting PTC behavior and over-current pro...

Temperature sensor

Over-current protection device and manufacturing method thereof

Over-current protection apparatus

Over-current protection device

Over-current protection device

Over-current protection apparatus with high voltage endurance

Over-current protection device and manufacturing method thereof

Over-current protection device

Over-current protection device

Conductive composition exhibiting PTC behavior

Multi-layer structure of a battery protection device

Over-current protection device and apparatus thereof

Over-current protection apparatus for high voltage

Over-current protection device

Surface mountable device

Over-current protection apparatus and method for making the same

Printed circuit board comprising an embedded functional element the...

Over-current protecting apparatus

Over-current protection apparatus