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

Patent Owner(s)

Patent Owner	Address
NGK INSULATORS LTD	JAPAN'S AICHI AICHI

International Classification(s)

• C30B:SINGLE-CRYSTAL GROWTH

• 1980 Application Filing Year
• C30B Class
• 67 Applications Filed
• 0 Patents Issued To-Date
• 0 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Mase, Syunzo	Tobishima, JP	41	839
# of filed Patents : 41 Total Citations : 839
Matsuzawa, Soichiro	Toyoake, JP	33	266
# of filed Patents : 33 Total Citations : 266

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Patent Citation Ranking

• 10 Citation Count
• C30B Class

• 0 % this patent is cited more than
• 42 Age

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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 No: 4402787

Method for producing a single crystal

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Abstract

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A single crystal is produced by contacting polycrystal showing a discontinuous crystal grain growth at a temperature not lower than T.degree.C to a seed single crystal having substantially the same crystal structure as the polycrystal and heating the contacted crystals at a temperature (t.degree.C) lower than the temperature T.degree.C to cause a solid phase reaction at an interface between microcrystal grains composing the polycrystal and the seed single crystal, whereby the microcrystal grains in the polycrystal are integrated to the seed single crystal to grow the single crystal.

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Description

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Claims

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Claims data not available

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Legal Events

 

• I1983
• STCF1983
• AS1980
• F1980
• PD1979

Date	Code	Event	Description
Sep 06, 1983	I	Issuance
Jul 08, 1983	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jun 06, 1980	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:MATSUZAWA, SOICHIRO;MASE, SYUNZO;REEL/FRAME:003987/0131 Owner name: NGK INSULATORS, LTD., NO. 2-56. SUDA-CHO, MIZOHO-K Effective Date: Jun 06, 1980
May 20, 1980	F	Filing
May 31, 1979	PD	Priority Date