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:
May. 03, 2005
Filed:
Jan. 06, 2003
Chia-tai Chen, Tainan, TW;
Shyh-haur Su, Hsinchu, TW;
Chi-ming Huang, Taipei, TW;
Jinn-cherng Yang, Ilan, TW;
Chun-jung Chen, Yunlin, TW;
Je-ping HU, Hsinchu, TW;
Chia-Tai Chen, Tainan, TW;
Shyh-Haur Su, Hsinchu, TW;
Chi-Ming Huang, Taipei, TW;
Jinn-Cherng Yang, Ilan, TW;
Chun-Jung Chen, Yunlin, TW;
Je-Ping Hu, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Abstract
A porous back-shooting inkjet print head module is disclosed. The ink permeates through the porous ink supply layer into an ink chamber in contact with the outside by an injection hole, and the porous ink supply layer prevents the ink from flowing back. Therefore, the ink chamber is sealed very well and more pressure could be generated. The invention can thus be used for inks with high viscosities. It does not need a precision alignment process as in the prior art. This does not only increase the efficiency and yield of production, but also reduces the cost.