Print element substrate, method of manufacturing the same, printhead and printing apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9451692
APP PUB NO 20150070434A1
SERIAL NO

14465446

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method of manufacturing a print element substrate, comprising preparing a substrate, including a first region and a second region, in which a printing portion is formed on the first region, and a wiring pattern connected to the printing portion is formed on the first region and the second region, forming an insulating film covering the printing portion and the wiring pattern, and forming a conductive cavitation-resistant film on the insulating film, wherein in the forming the insulating film, the insulating film is formed such that a side surface of a portion of the insulating film, which is formed on the second region, includes an inclined face.

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First Claim

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kurita, Noriyuki Oita, JP 11 260
Sasaki, Keiichi Yokohama, JP 63 870

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