US Patent No: 5,128,169

Number of patents in Portfolio can not be more than 2000

Method for forming hydroxyapatite coating film

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Abstract

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A method for forming a hydroxyapatite coating film on a substrate which comprises coating a dispersion of flocculated colloids of hydroxyapatite on a substrate and drying. The coating method of this invention does not require heating of the coated substrate to high temperature and hence can also be applied to a substrate which is easily deteriorated with heat. The coated substrate of this invention has excellent strength and adhesion force and is useful in a variety of fields, particularly as an implant and as a material, adsorbing and separating agent.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
SUMITOMO CHEMICAL COMPANY, LIMITEDOSAKA4729

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Shinji Sagamihara, JP 141 1131
Saita, Kenji Ibaraki-ken, JP 11 137

Cited Art Landscape

Patent Info (Count) # Cites Year
 
AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH (1)
4,988,362 Composition for coating bioceramics, method for coating bioceramics therewith, and composite bioceramics produced therewith 27 1989
 
KURARAY CO., LTD. (1)
4,699,742 Process for forming calcium phosphate ceramic articles 7 1985
 
KYOTO UNIVERSITY (1)
5,068,122 Process for forming a bioactive hydroxyapatite film 45 1989
 
MITSUBISHI KASEI CORPORATION (1)
4,983,182 Ceramic implant and process for its production 26 1989
 
Oscobal AG (1)
4,623,553 Method of producing a bone substitute material 107 1985
 
PERMELEC ELECTRODE LTD. (1)
4,911,953 Process for producing composite materials having a coating of calcium phosphate compound 32 1988
 
STRYKER TECHNOLOGIES CORPORATION (1)
RE33161 Combinations of sparingly soluble calcium phosphates in slurries and pastes as mineralizers and cements 119 1988
 
SUMITOMO CHEMICAL COMPANY, LIMITED (1)
5,030,474 Method for forming hydroxyapatite coating film using coating liquor containing hydroxyapatite 43 1990
 
Other [Check patent profile for assignment information] (1)
4,917,702 Bone replacement material on the basis of carbonate and alkali containing calciumphosphate apatites 58 1988

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
WARSAW ORTHOPEDIC, INC. (9)
5,849,569 Assessment of bone cell activity 4 1995
5,984,967 Osteogenic fusion devices 182 1996
5,766,669 Sintering process for producing thin films of calcium phosphate entities 48 1997
6,206,922 Methods and instruments for interbody fusion 221 1998
6,645,206 Interbody fusion device and method for restoration of normal spinal anatomy 44 2000
7,238,186 Interbody fusion device and method for restoration of normal spinal anatomy 26 2003
7,621,958 Methods and instruments for interbody fusion 8 2004
RE41251 Synthetic biomaterial compound of calcium phosphate phases particularly adapted for supporting bone cell activity 0 2008
7,985,258 Methods and instruments for interbody fusion 7 2009
 
BIOMET 3I, LLC (5)
8,486,483 Deposition of discrete nanoparticles on an implant surface 0 2006
7,972,648 Deposition of discrete nanoparticles on a nanostructured surface of an implant 0 2007
8,309,162 Implant surface with increased hydrophilicity 0 2009
8,641,418 Titanium nano-scale etching on an implant surface 0 2011
8,647,118 Deposition of discrete nanoparticles on a nanostructured surface of an implant 0 2011
 
SDGI HOLDINGS, INC. (3)
6,613,091 Spinal fusion implants and tools for insertion and revision 111 2000
6,471,724 Methods and instruments for interbody fusion 103 2001
6,695,851 Methods and instruments for interbody fusion 94 2002
 
Bestex Kabushiki-Kaisha (2)
5,296,254 Method of producing a filtering material 5 1992
5,597,619 Filtering material and method of producing the same 1 1995
 
CARNEGIE MELLON UNIVERSITY (2)
7,247,288 Method of manufacturing hydroxyapatite and uses therefor in delivery of nucleic acids 9 2003
7,776,600 Method of manufacturing hydroxyapatite and uses therefor in delivery of nucleic acids 1 2007
 
CHEMAT TECHNOLOGY, INC. (2)
7,341,756 Coated implants and methods of coating 7 2006
7,648,726 Coated implants and methods of coating 1 2008
 
MATRIX MEDICAL B.V. (2)
6,069,295 Implant material 47 1997
6,143,948 Device for incorporation and release of biologically active agents 19 1997
 
RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY (2)
7,998,219 Hydroxyapatite with controllable size and morphology 0 2005
8,287,914 Biomimetic hydroxyapatite synthesis 1 2007
 
ALCOA INC. (1)
5,472,734 Apatite coating on aluminum sheet and method of manufacture 12 1993
 
Biomet 3l, LLC (1)
7,771,774 Deposition of discrete nanoparticles on an implant surface 3 2006
 
CHEMET TECHNOLOGY INC. (1)
7,067,169 Coated implants and methods of coating 10 2003
 
ETEX CORPORATION (1)
5,958,504 Hydroxyapatite coatings and a method of their manufacture 19 1996
 
ICET, INC. (1)
6,129,928 Biomimetic calcium phosphate implant coatings and methods for making the same 122 1998
 
KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION (1)
8,557,337 Magnetic core—ceramic shell nanocrystals and manufacturing method thereof 0 2008
 
NGK SPARK PLUG CO., LTD. (1)
6,153,266 Method for producing calcium phosphate coating film 15 1998
 
PENTAX CORPORATION (1)
6,776,860 Ceramic composite and manufacturing method thereof 2 1999
 
UNIVERSITE DE SHERBROOKE (1)
5,609,921 Suspension plasma spray 52 1994