US Patent 7198670 Method of fabricating board having periodically poled region
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Patent Inventor Names
Katuhiko Tokuda0
Kazutomo Kadokura0
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Patent abstract
A polarization inverting region is formed by using a board comprising a single crystal of lithium tatalate of a stoichiometric composition or near to the stoichiometric composition and applying a direct current electric field having an electric field intensity equal to or lower than 5 [kV/mm] for 1 [second] or longer. A periodically poled region can be formed without needing a complicated constitution for applying a pulse voltage or a complicated constitution for applying a strong electric field.
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US Patent 07198670 Method of fabricating board having periodically poled region US Patent 7198670 Method of fabricating board having periodically poled region
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Patent Number
07198670
Patent Number
7198670
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US Patent 07198670 Method of fabricating board having periodically poled region
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Is a
Patent jurisdiction
Patent number
07198670
Date of patent
April 3, 2007
Patent application number
11038990
Date Filed
January 20, 2005
Patent primary examiner
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