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:
Nov. 05, 2002
Filed:
Jun. 02, 2000
Liquid discharge head, liquid discharge apparatus and method for manufacturing liquid discharge head
Yoshiyuki Imanaka, Kawasaki, JP;
Akihiro Yamanaka, Kawasaki, JP;
Teruo Ozaki, Yokohama, JP;
Masahiko Kubota, Tokyo, JP;
Shinji Watanabe, Kawasaki, JP;
Yoichi Taneya, Yokohama, JP;
Hiroyuki Sugiyama, Sagamihara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a liquid discharge head comprising a plurality of discharge ports for discharging liquid, first and second substrates for defining a plurality of liquid flow paths communicated with the discharge ports, and a plurality of energy converting elements disposed in the liquid flow paths and adapted to convert electrical energy into discharge energy for liquids in the liquid flow paths, wherein sensors for detecting behavior of the liquid are provided in the respective liquid flow paths as solid structure portions protruded from walls of the liquid flow paths.