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:
Feb. 26, 2008
Filed:
Sep. 21, 2004
Chise Nishiwaki, Kunitachi, JP;
Kazuo Asano, Hino, JP;
Shozo Kikukawa, Akiruno, JP;
Abstract
A method of driving a droplet jetting head comprising nozzle orifices to jet droplets, pressure generating chambers each of which can store liquid and communicate with one of the orifices, and pressurizing devices to change the pressures of the pressure generating chambers, comprising the steps of increasing the pressure in the pressure generating chamber by the pressurizing device and protruding liquid in the pressure generating chamber from the nozzle orifice as a droplet, and separating the liquid which protrudes from the nozzle orifice when α/β is equal to or less than 1/3 where α(μm) is the diameter (in micrometers) of an liquid pillar (protruded from the nozzle orifice) at the front end of the nozzle orifice and β(μm) is the maximum diameter (in micrometers) of the liquid pillar.