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公开(公告)号：US10479901B2
公开(公告)日：2019-11-19
申请号：US15812824
申请日：2017-11-14
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Paul T. Kohlmann , Cornelis Jan Delst , Paul G. Coombs
IPC: H01F1/01 , C09D17/00 , C09D11/037 , C09D5/32 , C09D7/62 , C09C1/00 , H01F1/28 , H01F1/03 , C09D7/40 , H01F1/26
Abstract: The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.
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公开(公告)号：US11787956B2
公开(公告)日：2023-10-17
申请号：US17942557
申请日：2022-09-12
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Paul T. Kohlmann , Cornelis Jan Delst , Paul G. Coombs
IPC: C09D7/62 , H01F1/01 , C09C1/00 , H01F1/28 , C09D5/32 , C09D11/037 , C09D7/40 , C09D17/00 , H01F1/03 , H01F1/26
CPC classification number: C09D7/62 , C09C1/0015 , C09D5/32 , C09D7/70 , C09D11/037 , C09D17/004 , H01F1/01 , H01F1/0306 , H01F1/28 , C01P2004/54 , C01P2004/61 , C01P2006/42 , C01P2006/60 , C09C2200/1054 , C09C2210/00 , H01F1/26
Abstract: The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.
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公开(公告)号：US10242788B2
公开(公告)日：2019-03-26
申请号：US15601439
申请日：2017-05-22
Applicant: Viavi Solutions Inc.
Inventor： Vladimir P. Raksha , Charles T. Markantes , Paul G. Coombs , Roger W. Phillips , Paul T. Kohlmann , Alberto Argoitia , Neil Teitelbaum
IPC: H01F10/08 , C09D5/33 , C09D11/50 , B42D25/328 , C09D201/00 , B42D25/29 , C09C1/00 , C09D11/037 , B42D25/369 , B82Y30/00 , H01F1/00 , C09D7/40 , H01F41/16
Abstract: The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.
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公开(公告)号：US09508475B2
公开(公告)日：2016-11-29
申请号：US13733792
申请日：2013-01-03
Applicant: Viavi Solutions Inc.
Inventor： Vladimir P. Raksha , Paul T. Kohlmann , Cornelis Jan Delst , Paul G. Coombs
CPC classification number: C09D7/62 , C01P2004/54 , C01P2004/61 , C01P2006/42 , C01P2006/60 , C09C1/0015 , C09C2200/1054 , C09C2210/00 , C09D5/32 , C09D7/70 , C09D11/037 , C09D17/004 , H01F1/01 , H01F1/0306 , H01F1/26 , H01F1/28
Abstract: The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.
Abstract translation: 本发明提供一种对人体健康和环境相对安全的磁性多层颜料薄片和磁性涂料组合物。 颜料薄片包括磁性合金的一个或多个磁性层和介电材料的一个或多个电介质层。 磁性合金是铁 - 铬合金或铁 - 铬 - 铝合金，其具有基本上不含镍的组成。 涂料组合物包括设置在粘合剂介质中的多个颜料薄片。
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公开(公告)号：US11441041B2
公开(公告)日：2022-09-13
申请号：US16653479
申请日：2019-10-15
Applicant: VIAVI SOLUTIONS INC.
Inventor： Vladimir P. Raksha , Paul T. Kohlmann , Cornelis Jan Delst , Paul G. Coombs
IPC: C09D7/62 , H01F1/01 , C09C1/00 , H01F1/28 , C09D5/32 , C09D11/037 , C09D7/40 , C09D17/00 , H01F1/03 , H01F1/26
Abstract: The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.
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Patent Agency Ranking
公开(公告)号：US10061065B2
公开(公告)日：2018-08-28
申请号：US14546317
申请日：2014-11-18
Applicant: Viavi Solutions Inc.
Inventor： Cornelis Jan Delst , Matthew R. Witzman , Paul T. Kohlmann , Charles T. Markantes
CPC classification number: G02B5/288 , B29C70/585 , C01P2006/62 , C09C1/0015 , C09C2200/1054 , C09C2200/24 , C09C2220/20 , C09D5/36 , G02B5/22 , G02B5/284 , G02B5/285 , G02B5/286 , G02B27/0012
Abstract: A method of providing a configuration of a system of interference filters with a visible color shifting effect, includes: a hue matching step of identifying a configuration of a first interference filter including two first metal layers and a first spacer layer therebetween, and a configuration of a second interference filter including two second metal layers and a second spacer layer therebetween, wherein the first and second filters match in hue at the first viewing angle, and the mismatch in hue at the second angle; and a lightness adjustment step which may include modifying the layer material or the layer thickness of one of the metal layers; wherein a difference in lightness at the first viewing angle between the first and second modified filters is less that a difference in lightness at the first viewing angle between the first and second filters.
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公开(公告)号：US20170271067A1
公开(公告)日：2017-09-21
申请号：US15601439
申请日：2017-05-22
Applicant: Viavi Solutions Inc.
Inventor： Vladimir P. RAKSHA , Charles T. Markantes , Paul G. Coombs , Rogar W. Phillips , Paul T. Kohlmann , Alberto Argoitia , Neil Teitelbaum
IPC: H01F10/08 , C09D5/33 , C09D7/12 , B42D25/328 , C09D11/50 , C09D201/00 , B42D25/369 , B42D25/29 , C09C1/00 , C09D11/037
CPC classification number: H01F10/08 , B42D25/29 , B42D25/328 , B42D25/369 , B42D2033/16 , B42D2033/18 , B42D2035/14 , B82Y30/00 , C01P2004/02 , C01P2004/03 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/42 , C01P2006/60 , C09C1/0015 , C09C1/0021 , C09C1/0078 , C09C2200/1054 , C09C2200/304 , C09C2200/306 , C09C2200/308 , C09C2200/401 , C09C2210/40 , C09C2220/20 , C09D5/004 , C09D7/70 , C09D11/037 , C09D11/50 , C09D201/00 , H01F1/0027 , H01F41/16 , Y10T428/24372 , Y10T428/2982
Abstract: The invention relates to anisotropic, reflective, magnetic flakes. In a liquid carrier and under influence of an external magnetic field, the flakes attract to one another side-by-side and form ribbons which provide higher reflectivity to a coating and may be used as a security feature for authentication of an object.
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公开(公告)号：US20170087918A1
公开(公告)日：2017-03-30
申请号：US15375962
申请日：2016-12-12
Applicant: Viavi Solutions Inc.
Inventor： Paul T. Kohlmann , Alberto Argoitia , Cornelis Jan Delst
IPC: B42D25/324 , G02B5/28 , C09C1/00 , B42D25/20 , B42D25/36
CPC classification number: B42D25/324 , B42D25/20 , B42D25/29 , B42D25/36 , B42D2035/24 , C09C1/0015 , C09C1/0057 , C09C2200/24 , C09C2210/30 , G02B5/18 , G02B5/1861 , G02B5/201 , G02B5/286 , G02B5/287 , G02B5/288 , Y10T428/2991
Abstract: A color shifting security device has a Fabry-Perot type structure wherein a dielectric layer is disposed between a reflector and an absorbing layer. The absorber and reflector layers may be conforming and the dielectric layer therebetween is non-conforming, filling the regions in the micro structured adjacent absorbing or reflecting layer, at least one of which has a microstructure therein or thereon. By having the dielectric layer not conform to the microstructure it is next to, its thickness varies in cross section, which allows for different colors to be seen where the thickness varies.
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公开(公告)号：US11079525B2
公开(公告)日：2021-08-03
申请号：US16113969
申请日：2018-08-27
Applicant: VIAVI Solutions Inc.
Inventor： Cornelis Jan Delst , Matthew R. Witzman , Paul T. Kohlmann , Charles T. Markantes
Abstract: A method of providing a configuration of a system of interference filters with a visible color shifting effect, includes: a hue matching step of identifying a configuration of a first interference filter including two first metal layers and a first spacer layer therebetween, and a configuration of a second interference filter including two second metal layers and a second spacer layer therebetween, wherein the first and second filters match in hue at the first viewing angle, and the mismatch in hue at the second angle; and a lightness adjustment step which may include modifying the layer material or the layer thickness of one of the metal layers; wherein a difference in lightness at the first viewing angle between the first and second modified filters is less that a difference in lightness at the first viewing angle between the first and second filters.
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公开(公告)号：US10300729B2
公开(公告)日：2019-05-28
申请号：US15375962
申请日：2016-12-12
Applicant: Viavi Solutions Inc.
Inventor： Paul T. Kohlmann , Alberto Argoitia , Cornelis Jan Delst
IPC: G02B5/18 , G02B27/44 , B32B5/16 , B42D25/324 , C09C1/00 , B42D25/20 , G02B5/20 , G02B5/28 , B42D25/29 , B42D25/36
Abstract: A color shifting security device has a Fabry-Perot type structure wherein a dielectric layer is disposed between a reflector and an absorbing layer. The absorber and reflector layers may be conforming and the dielectric layer therebetween is non-conforming, filling the regions in the micro structured adjacent absorbing or reflecting layer, at least one of which has a microstructure therein or thereon. By having the dielectric layer not conform to the microstructure it is next to, its thickness varies in cross section, which allows for different colors to be seen where the thickness varies.
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