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.

Date of Patent:
Apr. 29, 2008

Filed:

May. 23, 2005
Applicants:

Kenichiro Hashimoto, Kanagawa, JP;

Mitsumi Fujii, Iwate, JP;

Tomomi Katoh, Kanagawa, JP;

Tsuneo Maki, Kanagawa, JP;

Kiyoshi Yamaguchi, Kanagawa, JP;

Inventors:

Kenichiro Hashimoto, Kanagawa, JP;

Mitsumi Fujii, Iwate, JP;

Tomomi Katoh, Kanagawa, JP;

Tsuneo Maki, Kanagawa, JP;

Kiyoshi Yamaguchi, Kanagawa, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/015 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
Abstract

A liquid drop jet head includes a nozzle jetting a liquid drop, a liquid room connected to the nozzle, a common liquid room connected to the liquid room, a supply opening part supplying the liquid to the common liquid room, and a pressure generating part generating a pressure which pressurizes the liquid provided in the liquid room, wherein the common liquid room has a configuration in which a width of the common liquid room on a plane level is narrower as a point of the width is more remote from the supply opening part.


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