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. 14, 2008
Filed:
Feb. 26, 2007
Applicants:
Kayo Mukai, Tokyo, JP;
Masahiro Hamano, Beppu, JP;
Inventors:
Kayo Mukai, Tokyo, JP;
Masahiro Hamano, Beppu, JP;
Assignee:
Canon Finetech Inc., Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a liquid ejection head capable of performing a stable ejection operation at high speed even when thermal expansion of a valve supporting member occurs during liquid ejection. This is because the liquid ejection head allows the thermal expansion to influence supported valves only to a small extent, and a highly accurate and stable adhesion state to be obtained. To this end, first holes, second holes and slits are provided in the valve supporting member.