Hair removal device and method
US6267771A · kind A · utility
128Cited by
16References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1996 |
| Grant date | Jul 31, 2001 |
| Priority date | — |
| Expiry date | Feb 27, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N5/067
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device and process for the permanent removal of unwanted human hair. Hair on a section of skin is contaminated with a substance having high absorption of a frequency band of light. The skin is illuminated with light at this frequency band at sufficient intensity and duration to kill the follicles or the skin tissue feeding of the hair. Specific embodiments to produce death of the follicles or the skin tissues feeding the hair by heating and by photochemical reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.