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. 30, 2013
Filed:
May. 15, 2009
Akifumi Sakata, Chiba, JP;
Kazuyoshi Tominaga, Chiba, JP;
Toshiaki Watanabe, Chiba, JP;
Masatoshi Toda, Chiba, JP;
Akihiro Sadaki, Chiba, JP;
Akifumi Sakata, Chiba, JP;
Kazuyoshi Tominaga, Chiba, JP;
Toshiaki Watanabe, Chiba, JP;
Masatoshi Toda, Chiba, JP;
Akihiro Sadaki, Chiba, JP;
SII Printek Inc., , JP;
Abstract
A liquid injection head has a nozzle body having a row of nozzle holes and a nozzle guard that covers the row of nozzle holes. The nozzle guard has a top portion having formed therein a slit opposed to the row of nozzle holes, a sealing portion that seals an area between a peripheral edge of the top portion and the nozzle body, and a suction flow path having a suction port opening below the row of nozzle holes and communicating with a space on an inner side of the nozzle guard. A suction section connected to the suction flow path of the nozzle guard causes the space on the inner side of the nozzle guard to form a negative pressure chamber such that a liquid overflowing into the negative pressure chamber is sucked from the suction port of the suction flow path.