Kolon Industries, Inc.

Kwan Min Choi

Jae Hun Lee

Kwang Su Kim

Choongnyun Paul Kim

Geun Sang Cho

Min Jeong Kim

Jun Kil Doo

Tae Gap Jang

Jung Seok Hahn

Ja Ram Ku

Yoon Young Choi

Eun Uk Kim

A brake body according to the present disclosure has a coating layer which contains an iron-based amorphous alloy and is formed on a contact surface at which a friction means rubs against the brake body to generate braking force which the brake body is rotated. The coating layer has a low friction coefficient and thus generates less dust during braking. The coating layer also has high corrosion resistance and wear resistance and may thus guarantee high performance and good price competitiveness when applied to a brake base material produced at low cost.

Composite material

A pipe according to the present disclosure comprises: a hollow tube body in which fluids of different temperatures pass through the inside and outside thereof; and a coating layer which is provided on an external surface of the hollow tube body, and which has an alloy comprising an amorphous phase, wherein the alloy comprises Fe, and comprises at least one or more first component selected from the group consisting of Cr, Mo and Co, and at least one or more second component selected from the group consisting of B, C, Si and Nb.

Pipe and manufacturing method therefor

This invention relates to a light guide plate, which includes tunnels into which a light source may be inserted in a backlight unit assembly thus reducing light loss, and to a method of manufacturing the same.

Light guide plate and method of manufacturing the same

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Ansan-si, South Korea

Kwan Min Choi