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:
Apr. 13, 2010
Filed:
Feb. 15, 2007
Koji Kitani, Tokyo, JP;
Koji Kitani, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharge head includes a substrate, on which are formed energy generating members for generating energy to be used for the discharge of a liquid through a discharge port, and a precious metal protective layer for protecting the energy generating members, an inorganic adhesive layer formed of at least one material selected from titanium, titanium nitride, tantalum nitride and chromium nitride, the inorganic adhesive layer being closely adhered to the precious metal protective layer, an organic adhesive layer made of an organic material, and a flow path formation member, serving as a wall of a flow path communicating with the discharge port. The substrate, the inorganic adhesive layer, the adhesive layer and the flow path formation member are bonded to the substrate in this order.