Other

Yong Won E.n.c. Ltd.

Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Hyundai Motor Company

Kia Motors Corporation

Gs Engineering & Construction Corp.

Sbf Inc.

Yong Wong E.n.c. Ltd.

Hyung Soo Kim

Baik Young Chung

Se Dong Chang

Jae Heuk Choi

Jong Min Kim

Dae Han Kim

Yoon Been Lee

Joo Wan Kim

Sun Min Kin

Ik Tai Yeom

Yong Hyo Park

Yoon Beon Lee

Myoung Won Yoon

Young Gyun Choi

A method for operating a memory device is provided. The method includes providing a high voltage signal to a memory cell array including a plurality of memory cells using a first wiring, providing a logic signal to the memory cell array using a second wiring, and providing a shielding signal to the memory cell array using a third wiring arranged between the first wiring and the second wiring. A highest voltage level of the logic signal is lower than a highest voltage level of the high voltage signal, and the shielding signal includes a negative first voltage level in a first mode and a positive second voltage level in a second mode.

Memory device and a method for operating the same

The present disclosure relates to is a sprinkler reducer fixing apparatus formed in a one-touch open bracket form and capable of easily fixing a reducer of a sprinkler. The apparatus includes at least a main frame including a first frame support portion, a sub-frame installed to be spaced at a certain interval from the main frame and including a second frame support portion, an intermediate frame installed between the main frame and the sub-frame, a shaft extending to pass through the main frame, the intermediate frame, and the sub-frame and having one end supported by the sub-frame, and a pivoting lever connected to the other end of the shaft, which protrudes from the main frame, and configured to pull and withdraw the other end of the shaft from the main frame by pivoting to decrease a distance between the main frame and the sub-frame.

Sprinkler reducer fixing apparatus

Disclosed is a bolt and nut fastening test apparatus. The bolt and nut fastening test apparatus includes an angle adjusting plate mounted on a supporting block so as to be adjustable in angle, a driving motor mounted on a side surface of the angle adjusting plate so as to be able to ascend and descend and having a driving shaft arranged to face downward, a bolt socket mounted on the driving shaft of the driving motor and to which a head of a bolt is coupled, and a nut socket disposed below the bolt socket and supporting a nut fastened to the bolt in a rotation limited state.

Bolt and nut fastening test apparatus

Disclosed herein is a clamping structure for mounting a reducer. The clamping structure include a clamp bodythat is formed at opposite sides thereof with a door connecting portionand a latch member connecting portionto form a rectangular shape with one open side, and a clamp doorthat can be rotated about a hinge pinformed at the door connecting portion, wherein the clamp dooris formed at one side thereof with a fastening portion, to which a latch portion of a latch memberis latched to allow a lever handleof a lever memberto be pushed, and wherein the lever memberis coupled at one end thereof to the latch member connecting portionof the clamp bodyby a hingeand is rotatably coupled at a middle thereof to the latch memberby a hingeof the latch member

Clamping structure for mounting reducer

The present invention relates to a structure for fixing a reducer for a sprinkler in a side wall, and more particularly, to a structure for fixing a reducer for a sprinkler for side wall construction, in which since the reducer can easily adjust a distance from the side wall in the horizontal direction, a connection work between the reducer and the sprinkler head for the side wall construction connected to the reducer can be conveniently performed.

Structure for fixing reducer for sprinkler in side wall

An image forming apparatus having improved arrangement of photosensitive members and configuration of a light scanning device to enable size reduction is described. The image forming apparatus includes a plurality of photosensitive members, a light scanning device to irradiate light beams to the plurality of photosensitive members, so as to form electrostatic latent images on the photosensitive members, a plurality of developers to supply a developing agent to the photosensitive members, so as to form visible images on the photosensitive members, and a transfer drum disposed in contact with the photosensitive members and used to transfer the visible images such that the visible images overlap one another. Scanning lines, which are formed on the plurality of photosensitive members, respectively, by the light scanning device, are arranged in at least two different planes.

Light scanning device capable of producing non-coplanar scanning lines

Multi-type air conditioner including a plurality of compressors, a plurality of temperature sensors mounted in the plurality of compressors for sensing temperatures in the compressors respectively, and an equalizing pipe in communication with the plurality of compressors, for uniform distribution of oil among the plurality of compressors according to the temperatures sensed at the plurality of temperature sensors respectively, thereby distributing oil among the compressors uniformly at an exact time point at which the oil is distributed among the compressors non-uniformly, not only to permit improvement of the performance of the compressors, but also to permit improvement performance of the air conditioner having the compressors.

Multi-type air conditioner and method for controlling the same

A multi-type air conditioner includes an outdoor unit, one or more indoor units communicating with the outdoor unit, and a liquid-stay preventing device heating and evaporating a liquefied refrigerant so as to prevent the liquefied refrigerant circulating between the indoor unit and the outdoor unit from being accumulated at a low pressure side including the indoor unit. Accordingly, a liquefied refrigerant is not accumulated in an indoor unit and a connection pipe, which are a low pressure side where the pressure is relatively low, but smoothly passes therethrough regardless of a height difference between the indoor unit and the outdoor unit. Therefore, the efficiency of the multi-type air conditioner is improved. Also, because the refrigerant deficiency is prevented from occurring at a high pressure side, the reliability of the cooling operation is improved, and the liquefied refrigerant accumulated at the low pressure side is introduced into a compressor of the outdoor unit, thereby preventing damage to the compressor.

Multi-type air conditioner

The present invention relates to an activated sludge process and apparatus for effectively removing organic matters, nutrient salts, particulates, etc. dissolved in sewage/waste water by operating activated sludge process of a high biomass concentration combined with a down-flow solid-liquid separation process utilizing a float-concentrated sludge blanket layer. The present invention provides a process for biologically treating sewage/waste water using activated sludge, comprising the steps of (a) floating a sludge by having micro bubbles rise to form a float-concentrated sludge blanket layer and (b) down-flowing mixed liquor, including activated sludge and solids, into the sludge blanket layer, thereby resulting in a solid-liquid separation and an apparatus for operating the process.

Growing community of inventors

Seoul, South Korea

Hyung Soo Kim