Dorco Co., Ltd.

Other

Seong Won Jeong

Sung Hoon Oh

Min Joo Park

Sang Hoon Jung

The present disclosure provides an improvement to razor blade coating by a physical vapor deposition method, by forming a hard coating layer as a thin coating layer in which chromium boride, which is a nanocrystalline structure having high hardness, is dispersed in an amorphous mixture of chromium and boron, thereby improving the strength and hardness of the thin coating layer and securing the bonding force by chromium in the amorphous mixture between the hard coating layer and a blade substrate on which an edge of the razor blade is formed.

Razor blade and manufacturing method thereof

The present disclosure provides a razor blade coating by a physical vapor deposition method through performing a deposition with a single composite target composed of dissimilar materials with their area ratio defined to be varied in the single composite target in the direction of transferring the razor blade subject to the deposition, thereby forming a single layer in which the composition ratio of the dissimilar materials gradually changes in the thickness direction of the coating layer to improve the durability of the razor blade coating layer.

A visual enhancement kit for use in combination with a nail clipper featuring a lens that may be dismounted and interchanged with any of a plurality of lenses of varying refractive qualities. The resulting field of view of the cutting edge of the clipper and the area adjacent thereto enhances the user's ability to see the work being done by the clipper. vice as claimed in claim 1 additionally comprising a means to vary the distance between said lens and cutting blades. The device may be attached to a conventional nail clipper already in use and features rotational positioning of the lens in relation to the user. The device may also be provided already attached to a nail clipper and optionally features the ability to vary the distance between the lens and the cutting edge of the clipper which is user adjustable. Using hinged connections the lens may be folded for storage in a storage compartment formed from components of the device. The device is further enhanced by an optional light source.

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Gyeonggido, South Korea

Seong Won Jeong