Inventor

DELST CORNELIS JAN

US55 patents

⚠️ This page may combine multiple inventors who share the name “DELST CORNELIS JAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DELST CORNELIS JAN

VIAVI SOLUTIONS INC

Orienting magnetically-orientable flakes

Article with angled reflective segments

Optical security device based on a surface of revolution

Flakes with undulate borders and method of forming thereof

Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array

Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array

Colorant including a mixture of pigments

Security feature based on a single axis alignment of mirrors in a structured surface that forms a micro mirror array

Security ink based security feature

Optical security element

Orienting magnetically-orientable flakes

Composition including reflective particles

Security pigment

Optical security device based on a surface of revolution

Optical security element

Security ink based security feature

Optical security device based on a surface of revolution

Pigment composition and pigment flake

Magnetic multilayer pigment flake and coating composition

Electrostatic printing method

Asymmetric pigment

Article including an image including two or more types of pixels

Pigment including an intermetallic compound

Article with angled reflective segments

Printing machine and fixed patterned plate

Composition including a color shifting pigment and a color filter

Magnetic multilayer pigment flake and coating composition

Composition including a color shifting pigment and a color filter

Magnetic multilayer pigment flake and coating composition

Matched interference pigments or foils having viewing angle dependent mismatch

Metameric security devices

Flakes with undulate borders and methods of forming thereof

Asymmetric pigment

Durable optical interference pigment with a bimetal core

Colorant including a mixture of pigments

Security pigment and optical security element

Optical device with magnetic flakes and structured substrate

Magnetic multilayer pigment flake and coating composition

Optical security device comprising a layer having a microstructured surface and a dielectric layer filling in or complementary to the microstructured surface

Interference pigments or foils as separate structures having color match or mismatch depending on viewing angle

Magnetic multilayer pigment flake and coating composition

Diffractive pigment blend and composition

JDS UNIPHASE CORP

Printed magnetic ink overt security image

Printed magnetic ink overt security image

Taggent flakes for covert security applications having a selected shape

ARGOITIA ALBERTO

Flakes with undulate borders and method of forming thereof

Substrate and method of manufacturing polygon flakes

Provision of frames or borders around pigment flakes for covert security applications

RAKSHA VLADIMIR P

Two-axial alignment of magnetic platelets

KOHLMANN PAUL T

Multi color-shifting devices comprising a layer having a microstructured surface and a dielectric non-conforming layer