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:
Dec. 17, 2013
Filed:
Jan. 20, 2009
Masahiro Takei, Kawasaki, JP;
Minoru Machida, Yokohama, JP;
Satoshi Tsuchiya, Inagi, JP;
Mitsuru Imai, Chichibu, JP;
Keisuke Kawahara, Tokyo, JP;
Masahiro Takei, Kawasaki, JP;
Minoru Machida, Yokohama, JP;
Satoshi Tsuchiya, Inagi, JP;
Mitsuru Imai, Chichibu, JP;
Keisuke Kawahara, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A drug ejecting apparatus has an ejection port and an element which generates energy for ejecting a drug from the ejection port; a drug containing unit is connected to the drug ejection apparatus, and contains the drug; a movable wall is attached to an end of the drug containing unit, and is displaced by difference between pressures inside and outside of the drug containing unit; and a control unit displaces the movable wall. The drug ejection apparatus is filled with the drug, and the inside pressure of the drug containing unit is put in a negative pressure state in advance of ejecting of the drug, by displacing the movable wall by means of the control unit.