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:
May. 16, 2000
Filed:
Jun. 25, 1997
Hiroyuki Ishinaga, Tokyo, JP;
Masami Ikeda, Yokohama, JP;
Hajime Kaneko, Kodaira, JP;
Hideo Saikawa, Machida, JP;
Noribumi Koitabashi, Yokohama, JP;
Masashi Miyagawa, Yokohama, JP;
Jun Kawai, Tokyo, JP;
Yoshiyuki Imanaka, Kawasaki, JP;
Ken Hosaka, Yokohama, JP;
Teruo Ozaki, Yokohama, JP;
Masaaki Okada, Sanjo, JP;
Masahiko Kubota, Tokyo, JP;
Ryoji Inoue, Kawasaki, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
An ink-jet recording head comprises a plurality of liquid flow paths having discharge openings for discharging an ink, and a plurality of thermoelectric transducers provided for each liquid flow path in order to discharge the ink, wherein, a frontward thermoelectric transducer located on the discharge opening side is so provided that, when the ink is discharged by the frontward thermoelectric transducer alone, a value of (discharge velocity v/discharge quantity Vd) with respect to a distance OH extending from an end of its discharge opening side to the discharge opening is at a distance OH of the first region in a regional classification into a first region in which the value of v/Vd increases with a decrease in the distance OH and a second region in which it comes to be substantially constant with an increase in the distance OH.