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:
Oct. 27, 2015
Filed:
Mar. 09, 2012
Takeshi Seto, Chofu, JP;
Kazuyoshi Takayama, Sendai, JP;
Atsuhiro Nakagawa, Sendai, JP;
Toru Nakano, Sendai, JP;
Hiroaki Yamamoto, Sendai, JP;
Takeshi Seto, Chofu, JP;
Kazuyoshi Takayama, Sendai, JP;
Atsuhiro Nakagawa, Sendai, JP;
Toru Nakano, Sendai, JP;
Hiroaki Yamamoto, Sendai, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A fluid ejection device includes a fluid chamber configured to store fluid, a nozzle configured to eject the fluid stored in the fluid chamber, a fluid supply channel connected to the fluid chamber and configured to supply the fluid to the fluid chamber, an air bubbles generating member configured to generate air bubbles in the fluid chamber, and a partitioning wall portion configured to separate the fluid chamber and the fluid supply channel, support the air bubbles generating member. The partitioning wall portion include at least one hole, communicating the fluid chamber and the fluid supply channel. The hole is configured to inhibit backflow during ejection of a jet pulse.