Bright metal flake

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6013370
SERIAL NO

09005064

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A rigid and brittle bright metal flake is formed of a central layer of a reflective material supported on both sides by dielectric layers. In a preferred embodiment, the metal layer is aluminum having a thickness of about 100 nm and the dielectrics are either silicon dioxide or magnesium fluoride, each having a thickness of about 100 nm. The result is a very thin three-layered metal flake about 300 nm thick that exhibits a uniaxial compressive strength of about 8 times a corresponding uniaxial tensile strength. As a result, the metal flake is then afforded the benefits of rigidity and brittle fracture during the manufacturing and applicational processes which ultimately provides favorable planar and specular reflectance characteristics in the visible wavelength range.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
JDS UNIPHASE CORPORATIONSAN JOSE, CA291

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coulter, Kent Santa Rosa, CA 2 77
Mayer, Thomas Santa Rosa, CA 132 1936
Phillips, Roger W Santa Rosa, CA 115 3869

Cited Art Landscape

Patent Info (Count) # Cites Year
 
ECKART GMBH (1)
* 5332767 Synthetic resin-coated metal pigment, process for the production thereof and use thereof 65 1991
 
YKK CORPORATION (1)
* 5198042 Aluminum alloy powders for coating materials, and coating materials containing the alloy powders 42 1991
 
WHK, INC. (1)
* 4321087 Process for making metallic leafing pigments 70 1980
 
Silberline Limited (1)
* 5593773 Metal powder pigment 46 1995
 
CIBA SPECIALTY CHEMICALS CORPORATION (1)
* 5766335 Colored luster pigments 59 1997
 
VIAVI SOLUTIONS INC. (1)
* 4838648 Thin film structure having magnetic and color shifting properties 126 1988
 
Henkel Kommanditgesellschaft auf Aktien (1)
* 4756771 Colorless sealing layers for anodized aluminum surfaces 74 1987
 
TOYO ALUMINIUM KABUSHIKI KAISHA (1)
* 5766334 Colored titanium flakes, process for their preparation and resin composition containing colored titanium flakes 35 1996
 
SIBERLINE MANUFACTURING CO., INC., A CORP. OF IN (1)
* 4629512 Leafing aluminum pigments of improved quality 29 1985
 
JDS UNIPHASE CORPORATION (1)
* 5135812 Optically variable thin film flake and collection of the same 140 1991
 
BASF AKTIENGESELLSCHAFT (3)
* 4552593 Preparation of effect pigments coated with metal oxides 65 1983
* 4978394 Metal oxide coated aluminum pigments 70 1989
* 5763086 Goniochromatic luster pigments with silicon-containing coating 70 1996
* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (1)
* 6586046 Fluidized bed apparatus and method for treatment of nonspherical, nonequiaxed particles 5 2000
 
Other [Check patent profile for assignment information] (1)
* 2004/0101,676 Optically variable security devices 40 2003
 
ECKART GMBH (3)
* 6287695 Corrosion-stable aluminum pigments and process for the production thereof 10 1997
* 9260584 Coated, wet-chemically oxidized aluminum effect pigments, method for the production thereof, coating agent and coated object 0 2012
* 2015/0098,972 Coated, Wet-Chemically Oxidized Aluminum Effect Pigments, Method for the Production Thereof, Coating Agent and Coated Object 0 2012
 
ENGELHARD CORPORATION (4)
6325847 Precious metal color effect materials and production thereof 18 1999
6475273 Color effect materials and production thereof 1 2000
6440208 Alloy color effect materials and production thereof 11 2000
6582764 Hybrid inorganic/organic color effect materials and production thereof 11 2001
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (4)
7349155 Screen having a layer of reflectors 2 2004
* 2005/0128,581 Bragg reflector 0 2004
* 7189284 Ink with bragg reflectors 0 2004
* 2005/0094,265 Ink with bragg reflectors 1 2004
 
CIBA SPECIALTY CHEMICALS CORPORATION (2)
* 2006/0111,466 Process for printing substrates according to the ink-jet printing method 26 2003
* 2006/0034,787 Flake-form pigments based on aluminium 29 2003
 
KUEHNLE, MANFRED R. (1)
* 2008/0199,701 Encapsulated nanoparticles for the absorption of electromagnetic energy 3 2006
 
ECKART-WERKE STANDARD BRONZEPULVER WERKE CARL ECKART GMBH & CO. (1)
* 2002/0168,484 Corrosion-stable aluminum pigments and process for the production thereof 3 2002
 
VIAVI SOLUTIONS INC. (47)
* 6157489 Color shifting thin film pigments 56 1998
6545809 Color shifting carbon-containing interference pigments 21 1999
6246523 Methods of fabricating color shifting thin film pigments 18 2000
6243204 Color shifting thin film pigments 45 2000
6236510 Color shifting thin film pigments 6 2000
6586098 Composite reflective flake based pigments comprising reflector layers on bothside of a support layer 49 2000
6572784 Luminescent pigments and foils with color-shifting properties 71 2000
6692830 Diffractive pigment flakes and compositions 43 2001
6749936 Achromatic multilayer diffractive pigments and foils 38 2001
6841238 Chromatic diffractive pigments and foils 40 2002
6749777 Diffractive pigment flakes and compositions 42 2002
* 2003/0104,206 Diffractive pigment flakes and compositions 3 2002
6759097 Methods for producing imaged coated articles by using magnetic pigments 42 2002
* 2003/0165,637 Methods for producing imaged coated articles by using magnetic pigments 5 2002
6751022 Color shifting carbon-containing interference pigments and foils 37 2003
6744559 Color shifting carbon-containing interference pigments and foils 11 2003
6818299 Multi-layered magnetic pigments and foils 42 2003
7169472 Robust multilayer magnetic pigments and foils 12 2003
6699313 Composite reflective flake based pigments 10 2003
6838166 Multi-layered magnetic pigments and foils 65 2003
* 2004/0028,905 Multi-layered magnetic pigments and foils 10 2003
6987590 Patterned reflective optical structures 52 2003
* 2005/0063,067 Patterned reflective optical structures 12 2003
6833959 Color shifting carbon-containing interference pigments 9 2004
6831785 Color shifting carbon-containing interference pigments 5 2004
* 2004/0165,272 Color shifting carbon-containing interference pigments 1 2004
* 2004/0160,672 Color shifting carbon-containing interference pigments 0 2004
7224528 Optically variable security devices 24 2005
* 2005/0128,543 Optically variable security devices 40 2005
7667895 Patterned structures with optically variable effects 5 2005
* 2006/0077,496 Patterned structures with optically variable effects 35 2005
7674501 Two-step method of coating an article for security printing by application of electric or magnetic field 2 2006
* 2006/0194,040 Two-step method of coating an article for security printing 21 2006
7630109 Covert security coating 3 2006
* 2006/0285,184 Covert Security Coating 11 2006
7876481 Patterned optical structures with enhanced security feature 2 2006
7729026 Security device with metameric features using diffractive pigment flakes 2 2006
* 2010/0002,275 Security Device With Metameric Features Using Diffractive Pigment Flakes 1 2006
8025952 Printed magnetic ink overt security image 1 2007
9164575 Provision of frames or borders around pigment flakes for covert security applications 0 2007
* 8241748 High chroma optically variable color-shifting strand and woven products 2 2009
9027479 Method and apparatus for orienting magnetic flakes 0 2009
9257059 Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures 0 2012
9102195 Article with curved patterns formed of aligned pigment flakes 1 2013
RE45762 Printed magnetic ink overt security image 0 2013
9482800 Durable optical interference pigment with a bimetal core 0 2014
9522402 Method and apparatus for orienting magnetic flakes 0 2015
 
VIAVA SOLUTIONS INC. (1)
9458324 Flakes with undulate borders and method of forming thereof 0 2009
 
FLEX PROODUCTS, INC. (1)
6569529 Titanium-containing interference pigments and foils with color shifting properties 24 2000
 
JDS UNIPHASE CORPORATION (42)
* 6150022 Bright metal flake based pigments 85 1998
6761959 Diffractive surfaces with color shifting backgrounds 50 1999
6241858 Methods and apparatus for producing enhanced interference pigments 50 1999
6524381 Methods for producing enhanced interference pigments 11 2000
6387498 Bright metal flake based pigments 29 2000
6686042 Optically variable pigments and foils with enhanced color shifting properties 12 2000
6383638 Bright metal flake based pigments 13 2000
6565770 Color-shifting pigments and foils with luminescent coatings 91 2000
6997981 Thermal control interface coatings and pigments 22 2002
6676741 Methods for producing enhanced interference pigments 7 2003
6991860 Titanium-containing interference pigments and foils with color shifting properties 11 2003
6933048 Titanium-containing interference pigments and foils with color shifting properties 3 2003
6849343 Titanium-containing interference pigments and foils with color shifting properties 5 2003
* 2003/0215,641 Titanium-containing interference pigments and foils with color shifting properties 0 2003
7005178 Security articles having diffractive surfaces and color shifting backgrounds 14 2003
* 2004/0081,807 Security articles having diffractive surfaces and color shifting backgrounds 10 2003
7754112 Methods for forming security articles having diffractive surfaces and color shifting backgrounds 0 2003
7029745 Security articles having diffractive surfaces and color shifting backgrounds 18 2003
* 2004/0105,963 Security articles having diffractive surfaces and color shifting backgrounds 11 2003
* 2004/0094,850 Methods for forming security articles having diffractive surfaces and color shifting backgrounds 31 2003
7235300 Titanium-containing interference pigments and foils with color shifting properties 4 2005
* 2005/0287,369 Titanium-containing interference pigments and foils with color shifting properties 0 2005
* 2006/0023,327 Thermal control interface coatings and pigments 8 2005
7645510 Provision of frames or borders around opaque flakes for covert security applications 4 2005
* 2006/0035,080 Provision of frames or borders around opaque flakes for covert security applications 28 2005
* 7608330 High chroma optically variable color-shifting glitter comprising particles having interference structure coating 1 2006
8343615 Dynamic appearance-changing optical devices (DACOD) printed in a shaped magnetic field including printable fresnel structures 5 2006
* 2006/0198,998 DYNAMIC APPEARANCE-CHANGING OPTICAL DEVICES (DACOD) PRINTED IN A SHAPED MAGNETIC FIELD INCLUDING PRINTABLE FRESNEL STRUCTURES 38 2006
7625632 Alignable diffractive pigment flakes and method and apparatus for alignment and images formed therefrom 6 2006
* 2007/0139,744 Security Device With Metameric Features Using Diffractive Pigment Flakes 2 2006
7934451 Apparatus for orienting magnetic flakes 5 2007
* 2007/0172,261 Apparatus For Orienting Magnetic Flakes 9 2007
* 2007/0183,047 Optically Variable Security Devices 20 2007
* 2007/0195,392 Adhesive Chromagram And Method Of Forming Thereof 18 2007
8118963 Stamping a coating of cured field aligned special effect flakes and image formed thereby 0 2007
7550197 Non-toxic flakes for authentication of pharmaceutical articles 7 2007
* 2008/0019,924 Non-Toxic Flakes For Authentication Of Pharmaceutical Articles 0 2007
7880943 Patterned optical structures with enhanced security feature 2 2007
* 2010/0208,351 SELECTIVE AND ORIENTED ASSEMBLY OF PLATELET MATERIALS AND FUNCTIONAL ADDITIVES 1 2010
8658280 Taggent flakes for covert security applications having a selected shape 1 2011
8726806 Apparatus for orienting magnetic flakes 0 2012
8999616 Taggent flakes for covert security applications having a selected shape 0 2014
 
BASF AKTIENGESELLSCHAFT (2)
7449239 Coated metallic luster pigments for pigmenting high molecular weight materials 14 2004
* 2008/0249,224 USE OF COATED METALLIC LUSTER PIGMENTS FOR PIGMENTING HIGH MOLECULAR WEIGHT MATERIALS 2 2008
 
NELSON PRECISION CASTING CO., LTD. (1)
* 2005/0272,522 Coating for golf club head 10 2004
* Cited By Examiner