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US Patent 7252712 Process and apparatus for obtaining bulk monocrystalline gallium-containing nitride

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Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

Patent Inventor Names

Leszek Piotr Sierzfutowski0

Jerzy Garczynski0

Yasuo Kanbara0

Roman Marek Doradzinski0

Robert Tomasz Dwilinski0

Date of Patent

August 7, 2007

Patent Application Number

10479807

Date Filed

May 17, 2002

Patent Citations Received

US Patent 12091771 Large area group III nitride crystals and substrates, methods of making, and methods of use

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US Patent 11705322 Group III nitride substrate, method of making, and method of use

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US Patent 11884202 Laser-based fiber-coupled white light system

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US Patent 12000552 Laser-based fiber-coupled white light system for a vehicle

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US Patent 12000063 Large area group III nitride crystals and substrates, methods of making, and methods of use

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US Patent 12024795 Ultrapure mineralizer and improved methods for nitride crystal growth

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Patent Primary Examiner

Robert Kunemund

Patent abstract

The present invention refers to an ammonobasic method for preparing a gallium-containing nitride crystal, in which gallium-containing feedstock is crystallized on at least one crystallization seed in the presence of an alkali metal-containing component in a supercritical nitrogen-containing solvent. The method can provide monocrystalline gallium-containing nitride crystals having a very high quality.

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