Matthew R Witzman

6367414, Apr 9, 2002

Jan 10, 2001

09/758839

Matthew R. Witzman - Rohnert Park CA
Christopher W. Lantman - Santa Rosa CA
Eric R. Cox - Healdsburg CA

Flex Products, Inc. - Santa Rosa CA

C23C 1414

118723VE, 118726, 118718

A linear aperture deposition apparatus and process are provided for coating substrates with sublimed or evaporated coating materials. The apparatus and process are particularly suited for producing flexible films having an optical interference coating with a very high surface thickness uniformity and which is substantially free of defects from particulate ejection of a source material. The apparatus includes a source box containing a source material, a heating element to sublime or evaporate the source material, and a chimney to direct the source material vapor from the source box to a substrate. A flow restricting baffle having a plurality of holes is positioned between the source material and the substrate to confine and direct the vapor flow, and an optional floating baffle is positioned on the surface of the source material to further restrict the vapor flow, thereby substantially eliminating source material spatter.

6749936, Jun 15, 2004

Dec 20, 2001

10/029405

Alberto Argoitia - Santa Rosa CA
Paul T. Kohlmann - Windsor CA
Matthew R. Witzman - Rohnert Park CA
Paul G. Coombs - Santa Rosa CA
Charles T. Markantes - Santa Rosa CA

Flex Products, Inc. - Santa Rosa CA

B32B 516

428402, 428148, 428156, 428163, 428164, 428167, 428168, 428172, 428323, 428328, 428403, 427296, 430 2, 430 10, 430 11, 430292, 430294, 264144, 106400, 106401, 106499, 106640

Achromatic multilayer diffractive pigment flakes and foils are provided having diffractive structures thereon. The diffractive pigment flakes can have a symmetrical stacked coating structure on opposing sides of a reflective core layer, an asymmetrical stacked coating structure on one side of a reflective layer, or can be formed with one or more encapsulating coatings around the reflective core layer. The diffractive pigment flakes can be interspersed into liquid media such as paints or inks to produce diffractive compositions for subsequent application to a variety of objects. The foils can be laminated to various objects or can be formed on a carrier substrate. The diffractive pigment flakes and foils can be formed with a variety of diffractive structures thereon to produce selected optical effects. The diffractive foils and diffractive compositions applied to an object exhibit an iridescent diffractive effect over an achromatic background.

6759097, Jul 6, 2004

Dec 23, 2002

10/328509

Roger W. Phillips - Santa Rosa CA
Charlotte R. LeGallee - Healdsburg CA
Charles T. Markantes - Santa Rosa CA
Paul G. Coombs - Santa Rosa CA
Matthew R. Witzman - Santa Rosa CA

Flex Products, Inc. - Santa Rosa CA

C08J 704

427510, 427127, 427128, 427129, 427130, 427131, 427162, 427164, 4272082, 427212, 427215, 427218, 427256, 427259, 427282, 427356, 4273855, 427508, 427514, 427516, 427521, 427550, 427557, 427558, 427559, 427595, 427598

Methods and devices for producing images on coated articles are provided. The methods generally comprise applying a layer of magnetizable pigment coating in liquid form on a substrate, with the magnetizable pigment coating containing a plurality of magnetic non-spherical particles or flakes. A magnetic field is then applied to selected regions of the pigment coating while the coating is in liquid form, with the magnetic field altering the orientation of selected magnetic particles or flakes. Finally, the pigment coating is solidified, affixing the reoriented particles or flakes in a non-parallel position to the surface of the pigment coating to produce an image such as a three dimensional-like image on the surface of the coating. The pigment coating can contain various interference or non-interference magnetic particles or flakes, such as magnetic color shifting pigments.

6808806, Oct 26, 2004

May 7, 2001

09/850421

Roger W. Phillips - Santa Rosa CA
Charlotte R. LeGallee - Healdsburg CA
Charles T. Markantes - Santa Rosa CA
Paul G. Coombs - Santa Rosa CA
Matthew R. Witzman - Santa Rosa CA

Flex Products, Inc. - Santa Rosa CA

B32B 516

428403, 428402, 42840224, 4284111, 428357, 427128, 106456, 106480, 359584, 359585, 359388

Methods and devices for producing images on coated articles are provided. The methods generally comprise applying a layer of magnetizable pigment coating in liquid form on a substrate, with the magnetizable pigment coating containing a plurality of magnetic non-spherical particles or flakes. A magnetic field is then applied to selected regions of the pigment coating while the coating is in liquid form, with the magnetic field altering the orientation of selected magnetic particles or flakes. Finally, the pigment coating is solidified, affixing the reoriented particles or flakes in a non-parallel position to the surface of the pigment coating to produce an image such as a three dimensional-like image on the surface of the coating. The pigment coating can contain various interference or non-interference magnetic particles or flakes, such as magnetic color shifting pigments.

7184133, Feb 27, 2007

May 31, 2005

11/140839

Paul G. Coombs - Santa Rosa CA, US
Donald M. Friedrich - Windsor CA, US
Ken D. Cardell - Tucson AZ, US
Curtis R. Hruska - Windsor CA, US
Charles T. Markantes - Santa Rosa CA, US
Shaun McCaffery - Healdsburg CA, US
Bruce Matson - Sebastopol CA, US
Matthew R. Witzman - Santa Rosa CA, US
John Reinecke - Santa Rosa CA, US

JDS Uniphase Corporation - Milpitas CA

G06K 9/74

356 71

An automated verification system for authenticating an object having an optical security feature includes an optical system, a transport staging apparatus, and an analyzing device. The optical system includes one or more light sources that are capable of generating either narrowband or broadband light beams. The transport staging apparatus cooperates with the light sources and is configured to position the object such that one or more of the light beams strike a portion of the object where the security feature should be located. The analyzing device receives the light beams reflected or transmitted from the object and is adapted to analyze the optical characteristics of the light beams at varying angles and/or wavelengths to verify the authenticity of the object.

8105678, Jan 31, 2012

May 7, 2008

12/151524

Roger Phillips - Santa Rosa CA, US
Vladimir P. Raksha - Santa Rosa CA, US
Eric William Kurman - Healdsburg CA, US
Matthew Witzman - Santa Rosa CA, US
Neil Teitelbaum - Ottawa, CA

JDS Uniphase Corporation - Milpitas CA

B32B 3/00
B42D 15/00
G02B 5/04

428172, 428207, 35948506, 359530, 283114

An optically variable device is disclosed having a substrate with an array of pyramidal structures formed upon it or within it. The structures are preferably formed by printing pyramids with an optically variable color-shifting ink using an Intaglio-like printing process. Alternatively the structure can be formed by embossing a layer of ink with positive pyramids so as to yield an array of positive embossed pyramids. Each of the structures form a pyramidal-like having at least three slanted faces and wherein one or more than one color is seen when viewing the pyramids vary as substrate is rotated at least 30 degrees about an axis orthogonal to the substrate. In order to see a color shift the device is rotated around the surface normal of the substrate, while keeping the angle of incidence to the light source the same, and keeping the viewing angle the same. Various forms of pyramids may be used, however pyramids with planar faces are most suitable.

8124217, Feb 28, 2012

May 7, 2008

12/151511

Roger Phillips - Santa Rosa CA, US
Matthew Witzman - Santa Rosa CA, US
Vladimir P. Raksha - Santa Rosa CA, US
Eric William Kurman - Healdsburg CA, US
Neil Teitelbaum - Ottawa, CA

JDS Uniphase Corporation - Milpitas CA

B32B 3/00
B42D 15/00
G02B 5/04

428172, 428207, 35948506, 359530, 283114

An optically variable device is disclosed having a substrate with an array of pyramidal structures formed upon it or within it. The structures are coated with an optically variable color-shifting coating. Each of the structures form a pyramidal-like having at least three slanted faces and wherein one or more colors seen when viewing the pyramids vary as substrate is rotated at least 30 degrees about an axis orthogonal to the substrate. In order to see a color shift the device is rotated around the surface normal of the substrate, while keeping the angle of incidence to the light source the same, and keeping the viewing angle the same. Various forms of pyramids may be used, however pyramids with planar faces are most suitable.

8498033, Jul 30, 2013

Sep 3, 2009

12/584339

Matthew R. Witzman - Santa Rosa CA, US
Jason Satern - Santa Rosa CA, US
Roger W. Phillips - Santa Rosa CA, US
Oleg Bouevitch - Ottawa, CA

JDS Uniphase Corporation - Milpitas CA

G03H 1/00
G02B 5/18
B42D 15/00

359 2, 359567, 283 86

An optical device exhibiting a color shift upon rotation is disclosed. The optical device has a textured surface having a relief structure finer than a human eye resolution but large enough not to exhibit diffraction effects. The textured surface is coated with an interference thin film that exhibits a color shift with tilt. A uniform color seen at one angle of rotation changes to another uniform color when the optical device is rotated in its own plane. A method of manufacturing of such an optical device, as well as the use of the optical device as an optical security and authentication element, is also disclosed.