Hyundai Motor Company

Samsung Electronics Co., Ltd.

Kia Motors Corporation

Kia Corporation

Hyundai Sungwoo Casting Co Ltd

Hands Corporation Ltd.

Seowoo Industry Go., Ltd.

Jun-Min Lee

Min-Soo Kim

Young-chan Kim

Bo-Young Lee

Ji-myoung Lee

Young-soo Song

Dong-Yong Shin

Ji-Yong Lee

Cheol-Ung Lee

Hyo-Moon Joo

Yoon-Ki Lee

Mun-Gu Kang

Young-Rae Jo

Jae-Gi Sim

Young-Chan Kim

Sung-Hoon Kim

Young-Sik Kim

Jong-Ju Lee

Da-Woon Lim

Sang-Bum Park

Jae-Hyun Hwang

Ui-Min Jeong

Byoung-Ok Park

Young-Rae Cho

Geon-Ki Han

A method for manufacturing a one-piece wheel by forging includes: producing an integral forging comprising: a disc portion, a rim portion, and an annular protrusion protruding from one side of the disc portion in a forging method; producing an outer bend by bending the annular protrusion through a flow-forming process; and forming a hollow portion by welding one end of the outer bend to one side of the rim portion.

Method for manufacturing a one-piece wheel by forging and a one-piece wheel manufactured thereby

A vehicle wheel including a wavelength tube member may include spokes, a cylindrical rim configured to connect both circumferential portions of the spokes, and a wavelength tube member accommodated on the rim between the first and second circumferential portions of the spokes and configured to cancel sound wave generated in a cavity formed between the rim and a tire, wherein the wavelength tube member may include a rim seating portion being in surface-contact with and accommodated on an external surface of the rim; and a plurality of wavelength tube portions formed on the rim seating portion.

Vehicle wheel including wavelength tube member

A centrifugal casting apparatus for different materials may include a mold having a shape corresponding to a shape of an outer surface of a casting to be produced, and having a cavity receiving molten metals therein, a molten metal guide inserted into the mold and configured to guide the molten metals so that the molten metals are separately injected into the mold, a guide fixing support fixing the molten metal guide to a predetermined position, and a motor configured to rotate the mold around a rotation axis.

Centrifugal casting apparatus for different materials

A semiconductor device is disclosed. The semiconductor device includes a plurality of dummy gate lines parallel to each other in a first direction and extending in a second direction that is orthogonal to the first direction; a plurality of first dummy filling patterns between the plurality of dummy gate lines, the first dummy filling patterns parallel to each other in the first direction, and arranged apart from each other in the second direction; a plurality of first dummy vias on the plurality of first dummy filling patterns; and a plurality of first dummy wiring lines connected to the plurality of first dummy vias, the first dummy vias extending in the second direction, and parallel to each other in the first direction.

Semiconductor device having dummy cell array

A semiconductor device includes a substrate; a device area of the substrate, the device area including a plurality of device unit cells; and a dummy cell array arranged around the device area. The dummy cell array includes a plurality of dummy unit cells repeatedly arranged in a first direction and a second direction perpendicular to the first direction, each of the dummy cell unit having a structure corresponding to a device unit cell. The device unit cell includes at least a first transistor in the device area. The structure of the dummy unit cell includes an active area and a gate line. For each dummy unit cell, the active area and the gate line extend beyond a cell boundary that defines the dummy unit cell.

Dummy cell array for fin field-effect transistor device and semiconductor integrated circuit including the dummy cell array

Growing community of inventors

Seoul, South Korea

Jun-Min Lee