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| Number | Title | Issue Date |
| 7523018 | Hair coloring system A system for determining hair color treatment, including a processor. The processor is configured for: receiving as input an initial spectrum of a sample of hair, the initial spectrum having a wavelength range; calculating a new spectrum of the hair due to a hypothe... | 04/21/2009 |
| 7508508 | Device and method for inspecting a hair sample A device for inspecting a hair sample. The device comprises a measuring area configured to accommodate a hair sample and an imaging unit for receiving light flux reflected from the measuring area. The imaging unit outputs an image of the hair sample located in the m... | 03/24/2009 |
| 7463356 | Method for analyzing hair An apparatus for analyzing a sample hair mixture having a mixture of two hair colors and an overall spectrum representative of the two colors, comprising: a first color selector, configured to select a first spectrum representative of a first color in the hair mixtu... | 12/09/2008 |
| 7304739 | Hair color measurement and treatment A method to change the color of hair. The method includes measuring an initial reflectance spectrum of a sample of the hair and analyzing a contribution of a plurality of natural hair factors to the initial reflectance spectrum. The method also includes calculating ... | 12/04/2007 |
| 7110117 | Hair color measurement and treatment A method to change the color of hair. The method includes measuring an initial reflectance spectrum of a sample of the hair and analyzing a contribution of a plurality of natural hair factors to the initial reflectance spectrum. The method also includes calculating ... | 09/19/2006 |
