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:
May. 26, 2009
Filed:
Dec. 07, 2005
Katsuji Arakawa, Chino, JP;
Yasutaka Matsumoto, Chino, JP;
Katsuji Arakawa, Chino, JP;
Yasutaka Matsumoto, Chino, JP;
Seiko Epson Corporation, , JP;
Abstract
A method for manufacturing a droplet ejection head includes a step of forming recessed sections for forming nozzles by etching half way through a first face of a silicon substrate, a step of bonding a first support substrate to the first face of the silicon substrate, a step of reducing the thickness of the silicon substrate by processing a second face of the silicon substrate that is opposite to the first face thereof, and making the recessed sections through holes, and a step of removing the first support substrate from the silicon substrate after the reduction of the thickness of the silicon substrate.