US Patent No: 4,582,814

Number of patents in Portfolio can not be more than 2000

Dielectric compositions

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Abstract

A composition for forming a densified dielectric body at low firing temperatures comprising a mixture of particles consisting essentially of (a) 95.5-99.4% finely divided wt. of a mixture of metal oxides, metal oxide precursors or polynary oxide reaction products thereof in molar proportions corresponding to the formula (Sr.sub.x Pb.sub.1-x TiO.sub.3).sub.a (PbMg.sub.r W.sub.s O.sub.3).sub.b, and (b) 4.5-0.6% wt. of a mixture of metal oxides or precursors thereof consisting essentially of (1) a binary oxide of a transition metal selected from the group consisting of Co, Ni, Cr, Mn and mixtures thereof, (2) Cd titanate, Zn titanate or mixtures thereof, and (3) a polynary oxide selected from the group consisting of Cd zirconate, Zn zirconate, Cd stannate, Zn stannate and mixtures thereof.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CERAMIC DIELECTRICS, INC., A CORP. OF DEWILMINGTON, DE2

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Thomas, Gene L Glendale, CA 1 18

Cited Art

Patent Info (Count) # Cites Year
 
MRA LABORATORIES, INC., NORTH ADAMS, MA A CORP OF DE (2)
4,219,866 Ceramic capacitor having a dielectric of (Pb,La) (Zr,Ti)O.sub.3 and BaTiO.sub.3 16 1979
4,283,753 Low firing monolithic ceramic capacitor with high dielectric constant 41 1979
 
MURATA MANUFACTURING CO., LTD. (2)
4,230,589 Method for producing piezoelectric ceramics 8 1979
4,339,544 Ceramic dielectric composition 20 1981
 
E. I. DU PONT DE NEMOURS AND COMPANY (1)
4,228,482 Multilayer ceramic capacitors 13 1977

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
MURATA MANUFACTURING CO., LTD. (3)
4,988,468 Method for producing non-reducible dielectric ceramic composition 5 1988
4,985,381 Dielectric ceramic composition 9 1990
5,439,857 Dielectric ceramic composition 3 1994
 
LOCKHEED MARTIN CORPORATION (2)
5,001,014 Ferrite body containing metallization 14 1988
5,000,909 Ferrite body containing metallization 6 1990
 
GENERAL ELECTRIC COMPANY (1)
4,959,262 Zinc oxide varistor structure 24 1988
 
KEMET ELECTRONICS CORPORATION (1)
5,011,803 Lead magnesium niobate ceramic dielectrics having low sintering temperatures 13 1990
 
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY (1)
5,866,492 Low-temperature sinterable temperature compensating microwave dielectric ceramic composition 5 1996
 
MAWEVA-HOLDING AG (1)
6,845,932 Kitchen appliance for preparing food 2 2002
 
Mitsubishi Mining & Cement Co., Ltd. (1)
4,744,972 Method for production of highly dielectric powder 5 1986
 
MRA LABORATORIES, INC., NORTH ADAMS, MA A CORP OF DE (1)
4,908,338 Dried emulsion ceramic process 7 1988
 
NATIONAL SCIENCE COUNCIL (1)
6,309,993 Low-fire microwave dielectric compositions 0 1999
 
NEC CORPORATION (1)
5,633,215 Dielectric porcelain composition having a high dielectric constant and a low sintering temperature 0 1996
 
TAM CERAMICS, INC. (1)
4,640,905 Dielectric compositions 21 1986
 
TDK CORPORATION (1)
5,084,426 Semiconductive ceramic composition 6 1989
 
The United States of America as represented by the Secretary of the Army (1)
5,079,200 Detector material for uncooled thermal imaging devices 24 1990
 
UBE INDUSTRIES, LTD. (1)
7,641,970 Dielectric particle aggregate comprising a surface layer of zinc titanate, low temperature sinterable dielectric ceramic composition using same 0 2005
 
W.R. GRACE & CO.-CONN. (1)
5,203,936 Clean burning green ceramic tape cast system using polyisobutylene binder 9 1991