The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2009
Filed:
Jun. 14, 2006
Chun-fu LU, Hsinchu, TW;
Hung-liang Chiang, Chiayi County, TW;
Jinn-cherng Yang, Yilan County, TW;
Chun-jung Chen, Yunlin Hsien, TW;
Chun-Fu Lu, Hsinchu, TW;
Hung-Liang Chiang, Chiayi County, TW;
Jinn-Cherng Yang, Yilan County, TW;
Chun-Jung Chen, Yunlin Hsien, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A droplet ejecting head includes a first substrate, a nozzle plate, a second substrate, an annular symmetrically channel plate and an actuator device. The nozzle plate with a nozzle is disposed on a first surface of the first substrate. The second substrate with a liquid inlet is disposed over the first substrate. The annular symmetrically channel plate with a fluid channel is disposed between the first substrate and the second substrate so that a pressure chamber is formed between the second substrate and the annular symmetrically channel plate. The liquid to be ejected flows to the fluid channel from the liquid inlet and overflows to the pressure chamber from the fluid channel. The actuator device is disposed on the second substrate. The second substrate is deformed by the actuator device for changing volume of the pressure chamber, and then the liquid in the pressure chamber is ejected via the nozzle.