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:
Jun. 15, 2004
Filed:
Jul. 26, 2000
Takeshi Okazaki, Sagamihara, JP;
Shunichi Watanabe, Tokyo, JP;
Tsutomu Abe, Isehara, JP;
Koichi Omata, Kawasaki, JP;
Hirotaka Miyazaki, Yokohama, JP;
Ryo Shimamura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for manufacturing an ink jet recording head, which is provided with a first base plate having energy generating elements, a second base plate having grooves for forming ink flow paths corresponding to the energy generating elements, and a discharge port forming member for forming discharge ports for discharging ink. The method includes the steps of forming the discharge ports by irradiating the discharge port forming member with laser light reflected from the groove wall faces, and direct laser light, and forming the flow paths by bonding the base plate and the second base plate with the grooves inside.