List of SUMCO patents

Patents where

Current Assignee

Name

SUMCO

Name	Description	Patent Applicant	Current Assignee	Patent Jurisdiction	Patent Number	Date of Patent
‌ US Patent 7416960 Method for manufacturing SOI substrate	Patent 7416960 was granted and assigned to SUMCO on August, 2008 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7416960	August 26, 2008
‌ US Patent 7364984 Method for manufacturing SOI substrate	Patent 7364984 was granted and assigned to SUMCO on April, 2008 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7364984	April 29, 2008
‌ US Patent 7358147 Process for producing SOI wafer	Patent 7358147 was granted and assigned to SUMCO on April, 2008 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7358147	April 15, 2008
‌ US Patent 7781309 Method for manufacturing direct bonded SOI wafer and direct bonded SOI wafer manufactured by the method	Patent 7781309 was granted and assigned to SUMCO on August, 2010 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7781309	August 24, 2010
‌ US Patent 7902039 Method for manufacturing silicon wafer	Patent 7902039 was granted and assigned to SUMCO on March, 2011 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7902039	March 8, 2011
‌ US Patent 7528049 Method for manufacturing bonded SOI wafer and bonded SOI wafer manufactured thereby	Patent 7528049 was granted and assigned to SUMCO on May, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7528049	May 5, 2009
‌ US Patent 7601538 Method for analyzing impurity	Patent 7601538 was granted and assigned to SUMCO on October, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7601538	October 13, 2009
‌ US Patent 7637708 Production system for wafer	Patent 7637708 was granted and assigned to SUMCO on December, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7637708	December 29, 2009
‌ US Patent 7316745 High-resistance silicon wafer and process for producing the same	Patent 7316745 was granted and assigned to SUMCO on January, 2008 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7316745	January 8, 2008
‌ US Patent 7320731 Process for growing silicon single crystal and process for producing silicon wafer	Patent 7320731 was granted and assigned to SUMCO on January, 2008 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7320731	January 22, 2008
‌ US Patent 7491270 Heat shield member and single crystal pulling device	Patent 7491270 was granted and assigned to SUMCO on February, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7491270	February 17, 2009
‌ US Patent 7479204 Method of manufacturing semiconductor substrate and method of evaluating quality of semiconductor substrate	Patent 7479204 was granted and assigned to SUMCO on January, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7479204	January 20, 2009
‌ US Patent 9502266 Silicon wafer and method of manufacturing thereof, and method of manufacturing semiconductor device	Patent 9502266 was granted and assigned to SUMCO on November, 2016 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	9502266	November 22, 2016
‌ US Patent 7632349 Silicon wafer surface defect evaluation method	Patent 7632349 was granted and assigned to SUMCO on December, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7632349	December 15, 2009
‌ US Patent 9956663 Method for polishing silicon wafer	Patent 9956663 was granted and assigned to SUMCO on May, 2018 by the United States Patent and Trademark Office.	SUMCO	SUMCO	United States Patent and Trademark Office	9956663	May 1, 2018
‌ US Patent 7541663 P-type silicon wafer and method for heat-treating the same	Patent 7541663 was granted and assigned to SUMCO on June, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7541663	June 2, 2009
‌ US Patent 7846253 Silicon semiconductor substrate and production method thereof	Patent 7846253 was granted and assigned to SUMCO on December, 2010 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7846253	December 7, 2010
‌ US Patent 9133063 Composite crucible, method of manufacturing the same, and method of manufacturing silicon crystal	Patent 9133063 was granted and assigned to SUMCO on September, 2015 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	9133063	September 15, 2015
‌ US Patent 7785419 Epitaxial apparatus	Patent 7785419 was granted and assigned to SUMCO on August, 2010 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7785419	August 31, 2010
‌ US Patent 11186921 Method for controlling convection pattern of silicon melt and method for producing monocrystalline silicon	Patent 11186921 was granted and assigned to SUMCO on November, 2021 by the United States Patent and Trademark Office.	SUMCO	SUMCO	United States Patent and Trademark Office	11186921	November 30, 2021
‌ US Patent 7521954 Method for determining a minority carrier diffusion length using surface photo voltage measurements	Patent 7521954 was granted and assigned to SUMCO on April, 2009 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7521954	April 21, 2009
‌ US Patent 10020203 Epitaxial silicon wafer	Patent 10020203 was granted and assigned to SUMCO on July, 2018 by the United States Patent and Trademark Office.	SUMCO	SUMCO	United States Patent and Trademark Office	10020203	July 10, 2018
‌ US Patent 10261125 Semiconductor wafer evaluation standard setting method, semiconductor wafer evaluation method, semiconductor wafer manufacturing process evaluation method, and semiconductor wafer manufacturing method	Patent 10261125 was granted and assigned to SUMCO on April, 2019 by the United States Patent and Trademark Office.	SUMCO	SUMCO	United States Patent and Trademark Office	10261125	April 16, 2019
‌ US Patent 7435294 Method for manufacturing silicon single crystal, and silicon wafer	Patent 7435294 was granted and assigned to SUMCO on October, 2008 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	7435294	October 14, 2008
‌ US Patent 9534318 Vitreous silica crucible and method of manufacturing the same	Patent 9534318 was granted and assigned to SUMCO on January, 2017 by the United States Patent and Trademark Office.		SUMCO	United States Patent and Trademark Office	9534318	January 3, 2017

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