Chocolate drawing method
US8173186B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 6, 2007 |
| Grant date | May 8, 2012 |
| Priority date | — |
| Expiry date | Apr 19, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23G3/0097
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A method of making a drawing on a chocolate by causing a pulsed laser to irradiate the surface of a solid chocolate under limited operation conditions, and a chocolate manufactured by said method are provided. The irradiation energy per pulse and the irradiation energy per sweeping unit line length of the pulsed laser are limited to a certain range. The trace of the laser irradiation remains circular or arc-shaped on the surface of the chocolate manufactured under the above conditions. Further, the method makes a drawing on the surface of the chocolate, using the phenomenon that chocolate changes color when being irradiated by a pulsed laser under the above operation conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.