Lg Electronics Inc.

Dorco Co., Ltd.

Other

Sk Innovation Co., Ltd.

Sk Global Chemical Co., Ltd.

Sung Hoon Oh

Sung Gu Joe

In Koo Shim

Min Joo Park

Seong Won Jeong

Dong Il Kim

Jung Hoi Choi

Yong Ho Lee

Jae Won Lim

Gang Ho Woo

Sang Il Lee

Jae Neung Jung

Kyung Jong Oh

Kyeong Hak Seong

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 razor cartridge includes: a blade housing accommodating a plurality of blades including at least a first blade and a second blade; a first contact member arranged at a front side of the plurality of blades with respect to a shaving direction; and a second contact member arranged at a rear side of the plurality of blades with respect to the shaving direction, each blade including an edge portion and a base, wherein a thickness of a first position of the edge portion of the first blade is less than a thickness of a corresponding second position of the edge portion of the second blade, and wherein a first exposure amount of the first blade with respect to a contact plane defined between the first contact member and the second contact member is less than a second exposure amount of the second blade with respect to the contact plane.

Razor cartridge

The present invention is directed to an arrangement of blades mounted within a razor cartridge. The razor cartridge includes a blade housing; and a plurality of blades including a first blade and a second blade, wherein a thickness of an edge portion of the first blade is less than a thickness of an edge portion of the second blade, and wherein a first span in front of the first blade is less than a second span in front of the second blade.

LCD monitor

LCD television receiver

Remote control

PDP television receiver

Growing community of inventors

Seoul, South Korea

Sung Hoon Oh