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

Patent Owner(s)

Patent Owner	Address
NIPPON ELECTRIC GLASS COMPANY LIMITED	OTSU-SHI SIGA 520

International Classification(s)

• C03C:CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREO....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hashibe, Yoshio	Shiga, JP	7	45
# of filed Patents : 7 Total Citations : 45
Sakane, Takashi	Shiga, JP	3	14
# of filed Patents : 3 Total Citations : 14
Shibuya, Takehiro	Shiga, JP	30	198
# of filed Patents : 30 Total Citations : 198

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Patent Citation Ranking

• 6 Citation Count
• C03C Class

• 2.21 % this patent is cited more than
• 31 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: 5275978

Colored crystallized glass article and method for producing the same

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Abstract

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A crystallized glass article having a surface pattern like granite, marble or other natural stones with a line pattern of a desired color or colors, which is formed by fusion bonding small masses of a crystallizable glass material mixed with inorganic pigment powder at a heat-treating temperature higher than the softening point. The surface pattern comprises crystallized glass areas defined by the small masses in the surface layer of the article and the colored line pattern defined by the pigment dispersed in the interfaces between adjacent ones of the small masses in the surface layer.

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Description

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