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:
Oct. 20, 2009
Filed:
Aug. 04, 2004
Shigeru Nishio, Yamatokoriyama, JP;
Hironobu Iwashita, Chiyoda-ku, JP;
Kazunori Yamamoto, Chiyoda-ku, JP;
Kazuhiro Murata, Tokyo, JP;
Shigeru Nishio, Yamatokoriyama, JP;
Hironobu Iwashita, Chiyoda-ku, JP;
Kazunori Yamamoto, Chiyoda-ku, JP;
Kazuhiro Murata, Tokyo, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Konica Minolta Holdings, Inc., Tokyo, JP;
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Abstract
With a micro nozzle in which the fluid discharge head has a nozzle with a micro hole having a diameter of 0.01 μm to 25 μm, the drive voltage during discharging operation is reduced. Further, by disposing an electrode section for applying a drive voltage to a discharge fluid on an external wall of a nozzle section, a distance between the electrode section and the nozzle hole is shortened. With this structure, the subject invention achieves both miniaturization of nozzle and reduction in drive voltage in an electrostatic suction type fluid discharge device. The subject invention also achieves an increase in discharge limit frequency while allowing use of materials with higher resistance for the fluid to be discharged.