Samsung Electronics Co., Ltd.

Jai Yeol Lee

Jin Yong Mo

Ju Hwan Kim

Mun Sub Kim

Jae Oh Han

Hyung Suk Han

Deug Yong Park

An image forming apparatus to connect a video controller to a laser scanning unit through a cable and the video controller includes a halftone table in order to perform a halftone process with respect to an original image. The halftone table includes a dot region having at least two shapes and a non-dot region.

Image forming apparatus including halftone table having different dot regions and method of controlling the same

An air purifier includes a bell-mouth having an enhanced structure to prevent an increase of noise at a particular frequency when air flows into the blowing fan through the bell-mouth. The air purifier includes a housing, a filter unit and a blowing fan placed inside the housing, and a bell-mouth placed toward an intake side of the blowing fan. The bell-mouth includes an inlet port formed at a center of the bell-mouth, a flow guide extending from a periphery of the inlet port toward the blowing fan, and a flat section positioned to discontinue the flow guide to increase a distance between the blowing fan and the bell-mouth. The flat section is formed at the section in the range of about 240&#xb0;&#x2dc;330&#xb0; with respect to a starting point of a scroll inside the bell-mouth. The flat section may have a saw-tooth shape to effectively distribute air passing therethrough.

Air purifier

A pipe fixing device comprising a plurality of pipes, for conducting liquid or gas, arranged to cross each other, and a fixing member for fixing the plurality of pipes. The fixing member comprises a plurality of pipe fixing bores, and a plurality of fitting bores for the fitting of bands used to tighten the pipes. The present invention can secure not only easy insertion of the pipes arranged to cross each other, but also enhancement in a coupling force of the pipes through the use of the tightening bands, resulting in stable and reliable fixation of the pipes.

Growing community of inventors

Suwon-si, South Korea

Jai Yeol Lee