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:
Mar. 15, 2011
Filed:
Jun. 17, 2008
Takeshi Takemoto, Yamato, JP;
Yasuhisa Kato, Hiratsuka, JP;
Kazuyoshi Matsumoto, Tokyo, JP;
Minori Ichimura, Tokyo, JP;
Manabu Izumikawa, Tokyo, JP;
Takeshi Takemoto, Yamato, JP;
Yasuhisa Kato, Hiratsuka, JP;
Kazuyoshi Matsumoto, Tokyo, JP;
Minori Ichimura, Tokyo, JP;
Manabu Izumikawa, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid ejection head includes a nozzle plate having a nozzle that ejects liquid drops, an actuator that deforms a portion of the nozzle plate surrounding the nozzle with heat, and a flow path member opposing the nozzle plate, which forms a flow path for guiding liquid to the nozzle. A fluidity resistance path is provided in the flow path between a nozzle plate portion surrounding the nozzle and a portion of the flow path member opposing the nozzle plate portion. A fluidity resistance of the fluidity resistance path is changed by deforming the nozzle plate portion.