Patents Represented by Attorney, Agent or Law Firm Firzpatrick, Cella, Harper & Scinto - Justia Patents Search

Patents Represented by Attorney, Agent or Law Firm Firzpatrick, Cella, Harper & Scinto

ELECTRO-THERMAL CONVERSION DEVICE BOARD, INK-JET RECORDING HEAD PROVIDED WITH THE ELECTRO-THERMAL CONVERSION DEVICE BOARD, INK-JET RECORDING APPARATUS USING THE SAME, AND PRODUCTION METHOD OF INK-JET RECORDING HEAD

Patent number: 6443563

Abstract: Beneath electro-thermal conversion device layers having heaters, a common electrode layer electrically connected to heaters through branch connection parts is laminated through a protective film, and discrete electrodes are formed on an upper surface of the electro-thermal conversion device layers putting the branch connection parts between, respectively.

Type: Grant

Filed: October 27, 1999

Date of Patent: September 3, 2002

Assignee: Canon Kabushiki Kaisha

Inventors: Ichiro Saito, Masashi Kitani, Yoshiyuki Imanaka, Teruo Ozaki, Toshimori Miyakoshi, Muga Mochizuki