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. 29, 2009
Filed:
Jul. 16, 2007
Kazufumi Oya, Suwa, JP;
Katsuji Arakawa, Chino, JP;
Kazufumi Oya, Suwa, JP;
Katsuji Arakawa, Chino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A droplet discharging head includes: a nozzle substrate that has a plurality of nozzle holes; a cavity substrate that communicates with the nozzle holes and which has a plurality of independent discharge chambers, the discharge chambers generating pressure therein so as to discharge droplets through the nozzle holes; a reservoir substrate that has a reservoir concave section and is provided between the nozzle substrate and the cavity substrate, the reservoir concave section functioning a reservoir, the reservoir being shared for communicating with the discharge chambers; a resin thin film formed on an entire inner surface of the reservoir concave section by film deposition, the resin thin film not being formed in the reservoir substrate on a side of an adhesion interface with the nozzle substrate or the cavity substrate; and a bottom surface of the reservoir concave section functioning a diaphragm section, the diaphragm section including the resin thin film and buffering pressure fluctuation.