US Patent No: 4,568,402

Number of patents in Portfolio can not be more than 2000

Method of sealing open ends of ceramic honeycomb structural body

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Abstract

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The disclosed method seals preselected open ends of channels of a ceramic honeycomb structural body with cordierite-forming sealing material batch, and fires the honeycomb structural body with the thus sealed ends, so as to convert the sealing material batch into cordierite.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NGK INSULATORS, LTD.NAGOYA1970

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamanaka, Toshiyuki Suzuka, JP 28 633
Ogawa, Yutaka Nagoya, JP 42 470
Yamada, Shunichi Nagoya, JP 16 334

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Corning Glass Works (1)
* 4,297,140 Ceramic foam cement 27 1980
 
NGK INSULATORS, LTD. (2)
* 4,293,357 Method for producing ceramic honeycomb filters 119 1980
* 4,340,403 Ceramic honeycomb filter 35 1980
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MINNESOTA MINING AND MANUFACTURING COMPANY (1)
* 4,957,554 Dimensionally-controlled ceramics 30 1989
 
BASF CORPORATION (1)
* 7,854,801 Uses of high mullite index calcined kaolin 0 2005
 
CUMMINS FILTRATION IP, INC. (1)
* 7,806,956 Tuning particulate filter performance through selective plugging and use of multiple particulate filters to reduce emissions and improve thermal robustness 2 2007
 
E. I. DU PONT DE NEMOURS AND COMPANY (1)
* 4,814,303 Anorthite-cordierite based ceramics from zeolites 13 1987
 
Tokuyama Soda Kabushiki Kaisha (1)
* 5,166,107 Process for preparation of anorthite sintered body 6 1988
 
IBIDEN CO., LTD. (1)
7,550,026 Honeycomb filter 14 2007
 
NIPPONDENSO CO., LTD. (1)
* 4,632,683 Exhaust gas purifying filter and production of the same 46 1985
 
HITACHI METALS, LTD. (1)
* 6,827,754 Ceramic honeycomb filter 34 2002
 
Corning Glass Works (1)
* 4,673,658 Cordierite ceramics containing silicon carbide whisker reinforcement 29 1986
 
DUPONT LANXIDE COMPOSITES, L.P. (3)
* 5,079,064 Thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum 19 1990
* 5,168,092 Catalyst coated thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum 4 1991
* 5,370,920 Process for producing catalyst coated thermal shock resistant ceramic honeycomb structures of cordierite, mullite and corundum 10 1992
 
EMITEC GESELLSCHAFT FUER EMISSIONSTECHNOLOGIE MBH (1)
* 7,981,498 Honeycomb body with internal cavities 0 2007
 
NGK INSULATORS, LTD. (10)
* 4,818,317 Method for producing ceramic honeycomb structural body 6 1987
* 5,720,787 Exhaust gas purifying filter using honeycomb monolith with random length sealing portions 29 1996
* 7,122,237 Honeycomb filter and method for manufacturing the same 3 2001
* 7,300,487 Sealing material, method for sealing honeycomb structure and sealed honeycomb structure 0 2003
* 7,497,999 Honeycomb structural body, method of manufacturing the structural body, and catalyst body using the structural body 2 2003
* 7,297,175 Exhaust gas purifying filter 6 2003
* 2005/0129,590 Honeycomb structural body, method of manufacturing the structural body, and catalyst body using the structural body 3 2004
* 7,611,560 Method of manufacturing plugged honeycomb structure, and plugged honeycomb structure 9 2006
* 7,438,966 Honeycomb segment and honeycomb structure using the honeycomb segment 0 2006
* 8,128,723 Partially plug-less DPF 1 2010
 
CORNING INCORPORATED (4)
* 5,409,870 Modified cordierite precursors 37 1992
8,242,038 Low thermal expansion high strength honeycomb cement and method therefor 0 2008
8,143,180 Honeycomb cement with ceramic-forming crystallizable glass and method therefor 0 2008
* 8,808,601 Method for manufacturing ceramic filter 0 2009
* Cited By Examiner