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US Patent 8128798 Liquid transfer device

Patent 8128798 was granted and assigned to Hitachi on March, 2012 by the United States Patent and Trademark Office.

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Patent attributes

Current Assignee

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Nobuhiro Tsukada0

Hideo Enoki0

Hironobu Yamakawa0

Kunio Harada0

Sakuichiro Adachi0

Date of Patent

March 6, 2012

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Patent Application Number

123072750

Date Filed

June 15, 2007

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Patent Citations Received

US Patent 11927740 Spatially variable hydrophobic layers for digital microfluidics

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US Patent 11946901 Method for degassing liquid droplets by electrical actuation at higher temperatures

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Patent Primary Examiner

Jeffrey T. Barton

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Patent abstract

A liquid transfer device electrically controls liquid position. The surface of the liquid transfer device is provided with unevenness in order to solve a problem of having a large number of electrodes for controlling voltage. The number of electrodes for controlling voltage can be halved by the utilization of a restoring force of the liquid to a spherical shape by surface tension, in addition to an electrical force.

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