TODAY’S PATENT – NOVEL THINNING SCISSORS

The Thinning scissors was invented by Takashi Sato and was assigned to Hikari Corporation which was later granted patent on 28^th April 1992 by the USPTO bearing the patent grant number US5107591A.

It is an object of this invention to provide an improved apparatus capable of cutting and thinning hair in a highly controlled manner. The object of this invention to provide an improved scissors which comprises one blade having a cutting edge and the other blade having a large number of teeth and non-cutting guides arranged there along so that hair can be thinned in a highly controlled manner by the cutting action of the teeth in cooperation with the guides.

It has now been discovered that if non-cutting guides are aligned alongside the teeth of a serrated blade in the prior art, the non-cutting guides part a tress of hair without severing or damaging the hairs so parted, whereas the teeth effectively cut the remaining hairs in a thinning action. When the teeth and the non-cutting guides are properly designed and spaced apart, this further permits the user to cut hair in predetermined proportions, particularly in lesser amounts than prior art thinning scissors can cut.