Atko Planning Inc.

Hwabaek Engineering Co., Ltd.

Hwaback Engineering Co., Ltd.

Kang Gu Lee

Jieon Kim

Bong Jin Choe

Sang Jeen Hong

Young Hyeon Choe

Young Hwan Uhm

Sang Youl Lee

Jung Min Han

Jong Hwan Ahn

An apparatus for treating leather waste includes: a main body having an inlet and an outlet; a sorting unit rotatably installed in the main body and comprising a plurality of treatment parts having processing components to sort leather inserted into the main body through the inlet; and a power unit configured to rotate the sorting unit.

Apparatus for treating waste leather

A method for manufacturing a breathable hybrid leather includes: a raw material supply step of supplying the natural leather of recycled leather; a step of applying a hot-melt adhesive to the upper surface of the leather raw material; a bonding step of supplying a fabric to the upper surface of the adhesive layer and applying heat and pressure to the leather raw material, the adhesive layer, and the fabric to obtain a bonded fabric; and a step of ironing and coating the bonded fabric a plurality of times.

Manufacturing method of breathable hybrid-leather

Disclosed is an apparatus and method for forming lubricant recesses having minute configurations by applying a photolithograph method in a curved inner surface, such as a cylinder bore surface of a cylinder block, the inside of a cylinder liner, the inside of a compressor cylinder, a big end of a connecting rod, a big end bearing, a shaft insertion hole of a rocker arm, or the like in an internal combustion engine.

Apparatus and method for forming lubricant recess having minute configuration in curved inner surface

The apparatus for detecting arc occurred in chamber for plasma treatment used for manufacturing semiconductor or LCD panel comprises, a sensor module for sensing the arc; a processor module for processing data from the sensor module; wherein the sensor module includes RGB color sensor for sensing color data of the arc occurred in the chamber, the RGB color sensor is a sensor sensable at least one of red color or green color or blue color of the arc, the apparatus detects the arc by sensing data of color and chroma and brightness of the arc.

Apparatus and method for detecting arcs

Copper pillar tin bump on semiconductor chip comprises a copper layer composed on chip and a tin layer entirely wrapping whole outer surface of said copper layer. A method for forming of the copper pillar tin bump on semiconductor chip comprises: composing the first copper layer on said chip; applying photoresist to said first copper layer, exposing and developing a part of said photoresist, composing the copper pillar layer at the developed part of photoresist, composing the upper tin layer, removing said photoresist, removing said the first copper layer except disposing place of copper pillar layer, composing side tin layer. The minute pattern makes it possible to form a high density packaging by reducing a pitch of copper pillar tin bump. Signal delay can be reduced by low electric resistance, and underfill can be easily soaked.

Copper pillar tin bump on semiconductor chip and method of forming the same

Disclosed is an apparatus and method for regenerating an etchant solution comprising metal compounds. When a sample of the etchant solution is determined to be of lower etching ability than a predetermined criteria as a result of the monitoring and analyzing three colors(red, green, and blue) of the etchant with color sensors in association with a microprocessor, the etchant solution is reoxidized by the addition of a suitable additive solution. The apparatus and method can regenerate spent etchant solutions containing heavy metals in a semi-permanent manner within the module device without wasting a portion of them, so that, in addition to producing no pollution of the environment, it is economically very favorable with an increase in overall etching efficiency.

Growing community of inventors

Siheung-si, South Korea

Kang Gu Lee