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:
Dec. 08, 2009
Filed:
Jun. 27, 2005
Masahiko Kubota, Tokyo, JP;
Takumi Suzuki, Kanagawa, JP;
Tamaki Sato, Kanagawa, JP;
Ryoji Kanri, Kanagawa, JP;
Maki Hatta, Tokyo, JP;
Kazuhiro Asai, Kanagawa, JP;
Shoji Shiba, Kanagawa, JP;
Etsuko Hino, Kanagawa, JP;
Hiroe Ishikura, Kanagawa, JP;
Akihiko Okano, Kanagawa, JP;
Masahiko Kubota, Tokyo, JP;
Takumi Suzuki, Kanagawa, JP;
Tamaki Sato, Kanagawa, JP;
Ryoji Kanri, Kanagawa, JP;
Maki Hatta, Tokyo, JP;
Kazuhiro Asai, Kanagawa, JP;
Shoji Shiba, Kanagawa, JP;
Etsuko Hino, Kanagawa, JP;
Hiroe Ishikura, Kanagawa, JP;
Akihiko Okano, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for manufacturing a liquid discharge head includes the steps of depositing a solid layer for forming a flow path on a substrate on which an energy generating element is arranged to generate energy that is used to discharge liquid, forming, on the substrate where the solid layer is mounted, a coating layer for coating the solid layer, forming a discharge port used to discharge a liquid, through a photolithographic process, in the coating layer formed on the solid layer, and removing the solid layer to form a flow path that communicates with the energy element and the discharge port, whereby a material used for the coating layer contains a cationically polymerizable chemical compound, a cationic photopolymerization initiator and an inhibitor of cationic photopolymerization, and whereby a material of the solid layer that forms a boundary with a portion where the discharge port of the coating layer is formed contains a copolymer of methacrylic anhydride and methacrylate ester.