Junhua Chang

Person

Nagano-Ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid ejection head
- Patent number 8,840,228
- Issue date Sep 23, 2014
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid ejection head
- Patent number 8,449,085
- Issue date May 28, 2013
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid ejection head
- Patent number 8,182,074
- Issue date May 22, 2012
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid ejection head
- Patent number 7,997,693
- Issue date Aug 16, 2011
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid ejection head
- Patent number 7,708,388
- Issue date May 4, 2010
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Piezoelectric actuator and fluid ejection head having the same
- Patent number 7,265,481
- Issue date Sep 4, 2007
- Seiko Epson Corporation
- Junhua Chang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Actuator device, liquid ejection head, and method of inspecting the...
- Patent number 7,210,770
- Issue date May 1, 2007
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Actuator device, liquid ejection head, and method of inspecting the...
- Patent number 7,207,664
- Issue date Apr 24, 2007
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Methods of manufacturing a piezoelectric actuator and a liquid jett...
- Patent number 7,152,290
- Issue date Dec 26, 2006
- Seiko Epson Corporation
- Chang Junhua
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid ejection head
- Patent number 7,140,554
- Issue date Nov 28, 2006
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Actuator device, liquid ejection head, and method of inspecting the...
- Patent number 7,114,797
- Issue date Oct 3, 2006
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid ejecting apparatus and controlling unit of liquid ejecting a...
- Patent number 7,073,878
- Issue date Jul 11, 2006
- Seiko Epson Corporation
- Keisuke Nishida
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Piezoelectric element, piezoelectric actuator and liquid jetting he...
- Patent number 6,997,547
- Issue date Feb 14, 2006
- Seiko Epson Corporation
- Chang Junhua
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric actuator, liquid jetting head incorporating the same,...
- Patent number 6,949,869
- Issue date Sep 27, 2005
- Seiko Epson Corporation
- Chang Junhua
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Piezoelectric element, piezoelectric actuator and liquid ejection h...
- Patent number 6,918,659
- Issue date Jul 19, 2005
- Seiko Epson Corporation
- Chang Junhua
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid jetting apparatus and method of driving the same
- Patent number 6,824,238
- Issue date Nov 30, 2004
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Piezoelectric actuator, liquid jetting head incorporating the same,...
- Patent number 6,803,703
- Issue date Oct 12, 2004
- Seiko Epson Corporation
- Chang Junhua
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Liquid-jetting apparatus and method of driving the same
- Patent number 6,802,589
- Issue date Oct 12, 2004
- Seiko Epson Corporation
- Shuji Yonekubo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jetting apparatus and method for driving the same
- Patent number 6,779,866
- Issue date Aug 24, 2004
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jetting apparatus and method of driving the same
- Patent number 6,685,293
- Issue date Feb 3, 2004
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jet apparatus and method for driving the same
- Patent number 6,619,777
- Issue date Sep 16, 2003
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jetting apparatus, method of driving the same, and computer-...
- Patent number 6,494,556
- Issue date Dec 17, 2002
- Seiko Epson Corporation
- Tomohiro Sayama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jetting apparatus
- Patent number 6,471,317
- Issue date Oct 29, 2002
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Driver for ink jet recording head
- Patent number 6,450,603
- Issue date Sep 17, 2002
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of driving an ink jet printhead
- Patent number 6,431,675
- Issue date Aug 13, 2002
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording apparatus
- Patent number 6,371,587
- Issue date Apr 16, 2002
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording head
- Patent number 6,099,111
- Issue date Aug 8, 2000
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink-jet type recording device
- Patent number 5,541,628
- Issue date Jul 30, 1996
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for forming ink droplets in ink-jet type printer and ink-jet...
- Patent number 5,453,767
- Issue date Sep 26, 1995
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
LIQUID EJECTION HEAD
- Publication number 20140111580
- Publication date Apr 24, 2014
- SEIKO EPSON CORPORATION
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID EJECTION HEAD
- Publication number 20130235124
- Publication date Sep 12, 2013
- SEIKO EPSON CORPORATION
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID EJECTION HEAD
- Publication number 20120218353
- Publication date Aug 30, 2012
- SEIKO EPSON CORPORATION
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID EJECTION HEAD
- Publication number 20110279553
- Publication date Nov 17, 2011
- SEIKO EPSON CORPORATION
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID EJECTION HEAD
- Publication number 20100165049
- Publication date Jul 1, 2010
- SEIKO EPSON CORPORATION
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID EJECTION HEAD
- Publication number 20070085882
- Publication date Apr 19, 2007
- SEIKO EPSON CORPORATION
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
ACTUATOR DEVICE, LIQUID EJECTION HEAD, AND METHOD OF INSPECTING THE...
- Publication number 20060256166
- Publication date Nov 16, 2006
- Seiko Epson Corporation
- Chang JUNHUA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Actuator device, liquid ejection head, and method of inspecting the...
- Publication number 20060103264
- Publication date May 18, 2006
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Piezoelectric actuator and fluid ejection head having the same
- Publication number 20050225205
- Publication date Oct 13, 2005
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid injection head
- Publication number 20050205687
- Publication date Sep 22, 2005
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid ejecting apparatus and controlling unit of liquid ejecting a...
- Publication number 20040212646
- Publication date Oct 28, 2004
- Seiko Epson Corporation
- Keisuke Nishida
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Method of manufacturing piezoelectric actuator and liquid jetting h...
- Publication number 20040108790
- Publication date Jun 10, 2004
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Piezoelectric element, piezoelectric acuator and liquid jetting hea...
- Publication number 20040100536
- Publication date May 27, 2004
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Piezoelectric element, piezoelectric actuator and liquid ejection h...
- Publication number 20040046838
- Publication date Mar 11, 2004
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Actuator device, liquid ejection head, and method of inspecting the...
- Publication number 20040008241
- Publication date Jan 15, 2004
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Piezoelectric actuator, liquid jetting head incorporating the same,...
- Publication number 20040004413
- Publication date Jan 8, 2004
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Piezoelectric actuator, liquid jetting head incorporating the same,...
- Publication number 20030193268
- Publication date Oct 16, 2003
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid jetting apparatus and method for driving the same
- Publication number 20030117454
- Publication date Jun 26, 2003
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid jetting apparatus and method of driving the same
- Publication number 20030085962
- Publication date May 8, 2003
- Seiko Epson Corporation
- Chang Junhua
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid-jetting apparatus and method of driving the same
- Publication number 20030058302
- Publication date Mar 27, 2003
- Seiko Epson Corporation
- Shuji Yonekubo
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid jetting apparatus
- Publication number 20020076246
- Publication date Jun 20, 2002
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid jet apparatus and method for driving the same
- Publication number 20020033852
- Publication date Mar 21, 2002
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid jetting apparatus and method of driving the same
- Publication number 20020024546
- Publication date Feb 28, 2002
- Seiko Epson Corporation
- Junhua Chang
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Junhua Chang

Person

Patents Grantslast 30 patents

Liquid ejection head

Liquid ejection head

Liquid ejection head

Liquid ejection head

Liquid ejection head

Piezoelectric actuator and fluid ejection head having the same

Actuator device, liquid ejection head, and method of inspecting the...

Actuator device, liquid ejection head, and method of inspecting the...

Methods of manufacturing a piezoelectric actuator and a liquid jett...

Liquid ejection head

Actuator device, liquid ejection head, and method of inspecting the...

Liquid ejecting apparatus and controlling unit of liquid ejecting a...

Piezoelectric element, piezoelectric actuator and liquid jetting he...

Piezoelectric actuator, liquid jetting head incorporating the same,...

Piezoelectric element, piezoelectric actuator and liquid ejection h...

Liquid jetting apparatus and method of driving the same

Piezoelectric actuator, liquid jetting head incorporating the same,...

Liquid-jetting apparatus and method of driving the same

Liquid jetting apparatus and method for driving the same

Liquid jetting apparatus and method of driving the same

Liquid jet apparatus and method for driving the same

Liquid jetting apparatus, method of driving the same, and computer-...

Liquid jetting apparatus

Driver for ink jet recording head

Method of driving an ink jet printhead

Ink jet recording apparatus

Ink jet recording head

Ink-jet type recording device

Method for forming ink droplets in ink-jet type printer and ink-jet...

Patents Applicationslast 30 patents

LIQUID EJECTION HEAD

LIQUID EJECTION HEAD

LIQUID EJECTION HEAD

LIQUID EJECTION HEAD

LIQUID EJECTION HEAD

LIQUID EJECTION HEAD

ACTUATOR DEVICE, LIQUID EJECTION HEAD, AND METHOD OF INSPECTING THE...

Actuator device, liquid ejection head, and method of inspecting the...

Piezoelectric actuator and fluid ejection head having the same

Liquid injection head

Liquid ejecting apparatus and controlling unit of liquid ejecting a...

Method of manufacturing piezoelectric actuator and liquid jetting h...

Piezoelectric element, piezoelectric acuator and liquid jetting hea...

Piezoelectric element, piezoelectric actuator and liquid ejection h...

Actuator device, liquid ejection head, and method of inspecting the...

Piezoelectric actuator, liquid jetting head incorporating the same,...

Piezoelectric actuator, liquid jetting head incorporating the same,...

Liquid jetting apparatus and method for driving the same

Liquid jetting apparatus and method of driving the same

Liquid-jetting apparatus and method of driving the same

Liquid jetting apparatus

Liquid jet apparatus and method for driving the same

Liquid jetting apparatus and method of driving the same