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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
JAPAN SUPER QUARTZ CORPORATION	AKITA-SHI AKITA-KEN 010-0065

International Classification(s)

• C03B:MANUFACTURE OR SHAPING OF GLASS, OR OF MINERAL OR ....
• C30B:SINGLE-CRYSTAL GROWTH

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Harada, Kazuhiro	Akita, JP	68	2189
Sato, Masaru	Akita, JP	152	1423
Sato, Tadahiro	Akita, JP	38	214

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent Application No: 2011/0023,773

VITREOUS SILICA CRUCIBLE AND METHOD OF MANUFACTURING THE SAME

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