HAIR STYLING PATENTS FOR 2006 - Patent and Intellectual ...

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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.
US Patent No: 6274150
Nanoemulsion based on phosphoric acid fatty acid esters and its uses in the cosmetics, dermatological,
pharmaceutical, and/or ophthalmological fields
The present invention provides a nanoemulsion, that includes: an oily phase dispersed in an
aqueous phase; and at least one anionic surfactant selected from the group including phosphoric
acid fatty esters and oxyethylenated derivatives thereof, and mixtures thereof; wherein the oily
phase includes oil globules having a number-average size of less than 100 nm; wherein the oily
phase includes at least one oil having a molecular weight of greater than 400; and wherein a weight
ratio of the oily phase to the surfactant ranges from 2 to 10. The invention also provides a process
for making the nanoemulsion, and methods for its use. The nanoemulsion is ideally transparent and
stable on storage. It can ideally contain large amounts of oil while retaining good transparency and
good cosmetic properties. The nanoemulsion is particularly useful in compositions, including
topical, pharmaceutical, dermatological, cosmetic, opthalmic, and opthalmologic. The composition
is also particularly useful in applications to the skin, hair, scalp, mucous membranes, and eyes.
US Patent No: 6277111
Depilation
Mammalian hair is depilated using a laser source capable of emitting pulse radiation, each pulse
having a duration of 1 microsecond to 1 millisecond, and having a wavelength in the range of 600
to 1500 nanometers. The radiation exposure dose is preferably between 2 and 25 J/cm.sup.2. A
selected area of a subject's skin is irradiated by the pulsed radiation, the area having a plurality of
irradiation zones. The laser source is successively pulsed so as to irradiate successive zones of the
treatment area with the radiation, so as to destroy subdermal biological material associated with
hair growth.
US Patent No: 6280715
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