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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.:

US 6497476 B1

PDFFull Text
Date of Patent:
Dec. 24, 2002

Filed:

Oct. 06, 1999

Liquid injection device, manufacturing method therefor, liquid injection method and manufacturing method for piezo-electric actuator

Applicant:
Inventors:

Akihiko Namba, Osaka, JP;

Masayuki Okano, Moriguchi, JP;

Atsushi Komatsu, Katano, JP;

Yosihiro Tomita, Osaka, JP;

Osamu Kawasaki, Kyotanabe, JP;

Assignee:

Matsushita Electric Industrial Co., Ltd., Osaka, JP;

Attorney:

Smith, Gambrell & Russell, LLP

Primary Examiner:

Thinh Nguyen

Int. Cl.
CPC ...
B41J 2/045 ;
U.S. Cl.
CPC ...
B41J 2/045 ;
Abstract

A liquid injection device has a liquid pressurizing chamber having one or a plurality of apertures, a liquid injection port provided at a part of the liquid pressurizing chamber, a liquid pressurizing member arranged adjacent to the liquid pressurizing chamber, a liquid passage arranged adjacent to the liquid pressurizing chamber; wherein within the aperture(s), a peripheral edge portion of the aperture(s) located at a position opposite to the liquid pressurizing member and the liquid pressurizing member are arranged to be apart from each other at a gap with a predetermined size; further wherein liquid is injected through the liquid injection port by driving the liquid pressurizing member to thereby pressurize the liquid supplied from the liquid passage into the liquid pressurizing chamber.

Find Patent Forward Citations

Namba, Akihiko. (2002). Liquid injection device, manufacturing method therefor, liquid injection method and manufacturing method for piezo-electric actuator (U.S. Patent No. 6497476). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6497476

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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