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

Patent Owner(s)

Patent Owner	Address
NKK CORPORATION	TOKYO JAPAN
TAKASHI SHINDO	2-503 1-CHOME NAGATA MINAMIDAI MINAMI-KU YOKOHAM CITY KANAGAWA PREF
SENJI KANEKO	189 IWASAKI-CHO HODOGAYA-KU YOKOHAMA CITY KANAGAWA PREF
SHINAGAWA SHIRORENGA K K	2-1 2-CHOME OTEMACHI CHIYODA-KU TOKYO

International Classification(s)

• C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....

• [Classification Symbol]

• [Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Hoshino, Yasushi	Tokyo, JP	41	546
Inokawa, Atsuo	Tokyo, JP	1	11
Kaneko, Senji	189, Iwasaki-Cho, Hodogaya-Ku, Yokohama City, Kanagawa Pref., JP	1	11
Otsuka, Takashi	Tokyo, JP	55	570
Shindo, Takashi	2-503, 1-Chome, Nagata Minamidai, Minami-Ku, Yokohama City, Kanagawa Pref., JP	27	138
Takikawa, Masaru	Tokyo, JP	1	11
Wakasugi, Katsuhiro	Tokyo, JP	1	11

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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: 5175134

Ceramic tile produced from sludge slag

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