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. 08, 2000
Filed:
Nov. 16, 1995
Applicant:
Inventors:
Masanori Takenouchi, Yokohama, JP;
Shinichi Hirasawa, Sagamihara, JP;
Kunihiko Maeoka, Kawasaki, JP;
Hiroto Takahashi, Yokohama, JP;
Toshiharu Inui, Yokohama, JP;
Kazuhiro Nakajima, Yokohama, JP;
Hidemi Kubota, Komae, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
347 65 ; 347 94 ;
Abstract
A recording head includes a liquid ejecting outlet, a liquid passage communicating with the ejection outlet, and a heat generating resistor for supplying heat to the liquid in a heat acting portion in the liquid to create a bubble in the liquid passage to eject the liquid through the ejection outlet. A cross-sectional area of the liquid passage increases from the heat acting zone toward the ejection outlet, and this improves performance while also improving head durability.