CJ

Chang Junhua

SE Seiko Epson: 10 patents #1,850 of 7,774Top 25%
Overall (All Time): #522,009 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
7210770 Actuator device, liquid ejection head, and method of inspecting the same 2007-05-01
7207664 Actuator device, liquid ejection head, and method of inspecting the same 2007-04-24
7152290 Methods of manufacturing a piezoelectric actuator and a liquid jetting head Takahiro Katakura, Motonori Okumura 2006-12-26
7114797 Actuator device, liquid ejection head, and method of inspecting the same 2006-10-03
6997547 Piezoelectric element, piezoelectric actuator and liquid jetting head incorporating the same 2006-02-14
6949869 Piezoelectric actuator, liquid jetting head incorporating the same, piezoelectric element, and method of manufacturing the same Takahiro Katakura, Motonori Okumura 2005-09-27
6918659 Piezoelectric element, piezoelectric actuator and liquid ejection head incorporating the same 2005-07-19
6803703 Piezoelectric actuator, liquid jetting head incorporating the same, and method of manufacturing the actuator and head 2004-10-12
6779866 Liquid jetting apparatus and method for driving the same Tsuyoshi Kitahara 2004-08-24
6685293 Liquid jetting apparatus and method of driving the same 2004-02-03