Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Star Group Ind. Co., Ltd

Young Beom Kim

Jae Hyuk Jang

Dong Hwan Kim

Do Hoon Kim

Hyung Ju Lee

Koon Seung Kong

Keun Jin Kim

An apparatus for outputting a virtual engine sound includes: an output device that outputs the virtual engine sound; a bumper beam connected to a rear surface of the output device; and a bumper foam connected to the output device and the bumper beam while opening left and right side surfaces of the output device. The apparatus for outputting a virtual engine sound may improve a virtual engine sound output efficiency by utilizing a sound pressure radiated from a side surface of the virtual engine sound output device.

Apparatus for outputting virtual engine sound

Disclosed are a rare-earth permanent magnet having improved magnetic properties and a method of manufacturing the same. A method of manufacturing a rare-earth permanent magnet may include: preparing a mixed powder including i) a first alloy represented by R1R2BMFeand ii) a second alloy represented by R2BMFewhere R1 is one or two or more of La, Ce, and Y; R2 is a rare-earth element except for La, Ce, and Y; and M is a metal element; press-forming and sintering the prepared mixed powder in a magnetic field to prepare a sintered body; and performing a heat treatment based on diffusion temperature conditions of an R1 component and an R2 component contained in the prepared sintered body.

Rare-earth permanent magnet and method of manufacturing the same

Growing community of inventors

Bucheon-si, South Korea

Young Beom Kim