Hyundai Motor Company

Kia Motors Corporation

Samsung Electronics Co., Ltd.

Doosan Heavy Industries & Construction Co., Ltd

Lg Electronics Inc.

Cheil Industries Inc.

Lg Display Co., Ltd.

Samsung Sdi Co., Inc.

Halla Climate Control Corporation

Lotte Chemical Corporation

Korea Advanced Institute of Science and Technology

Jfe Steel Corporation

Kia Motor Corporation

Seoyon E-hwa Co., Ltd.

Thinkware Systems Corporation

Hak Soo Kim

Dae Sik Kim

Han Ki Lee

Song Hun Cha

Sang Hyeun Kim

Jun Tae Jang

Jong Seob Kim

Jung Gyun Noh

Im Taek Sung

Sung Tae Kim

Jin Sung Kim

Jung-Woo Lee

Hew Nam Ahn

Hanki Lee

Young Sun Na

Dong Han Kim

Byung Kook Nam

Chang Hyeon Noh

Kyung Soon Jang

Won Gil Kim

Min Joo Lee

Oh Kyoung Kwan

Jun Won Kang

Yong Ho Kim

Yongho Kim

Young Jun Hong

Kyung Hun Jang

Myung Ho Lee

Chang Yong Shin

Yong-Sun Ko

Dae Ig Jung

Keon Soo Jin

Hee Jung Yu

Akio Kobayashi

Tae Soo Kwon

Yong Hoon Lee

Naomichi Nakamura

Seung Joon Lee

Woo-Sung Han

Myung Geun Song

Hye Kyung Kim

Hyeok Seung Lee

Jae Chan Lee

Kyeong Hoon Jang

Jun-Young Jang

Hyun Jin Kim

Yong-Kug Bae

Young Ju Lee

Ho-Young Kang

Masashi Fujinaga

Kyoung-Yun Baek

Young Seop Yoon

Toshio Maetani

Young Chul Sung

Gi Young Kim

Jang Hyun Choi

Byung Wook Kang

Chi Won Yoon

Woong Jae Boo

Sang Yun Lee

Jeong Sik Oh

Kohsuke Ashizuka

KieYoun Jeong

Seong Kwon Go

Mun Gyu Bak

Dae Young Kwon

Hirofumi Enokido

Beom Ho Kim

Sujin Baek

Seong Min Cho

Nam Kyoung Kim

Wan Jo

Han Pyol Kim

Won Jo Joo

Byung Uk Kang

Jong Ho Jeon

Min Sung Kang

Juseong Park

Young-Gyu You

Byung-kook Nam

Hyeong Shin Lee

Hyung Shin Lee

Hyeong Geun Oh

Kyung Beom Seo

Mungyu Bak

Wan Ho Son

Jae Hyun Choi

Hisashi Sudo

Provided is an etchant composition for a silicon layer including: a fluoride-based compound; a nitrate-based compound; an acid mixture including a phosphoric acid-based inorganic acid and an organic acid; and a nitrosyl compound and capable of selectively etching the silicon layer with respect to a silicon oxide layer.

Etchant composition for silicon layer and etching method using the same

The present disclosure relates to an iron-based prealloy powder having excellent strength and processability, and an iron-based alloy powder for powder metallurgy and a sinter-forged member using the same. The iron-based prealloy powder for powder metallurgy according to an embodiment of the present disclosure includes 0.5 to 5.0 wt % of Cu, 0.1 to 0.5 wt % of Mo, and a balance of Fe and other inevitable impurities. A Cu content (Cu %) and a Mo content (Mo %) satisfy the following Relational Equation (1):0.3&#xd7;Cu %+3&#xd7;Mo %&#x2264;2.7&#x2003;&#x2003;(1).

Iron-based prealloy powder, iron-based diffusion-bonded powder, and iron-based alloy powder for powder metallurgy using the same

A vehicle interior material manufacturing apparatus includes a preheater for preheating a raw fabric, a mover for moving the preheated raw fabric and including a stretching jig movable back and forth, a first mold into which the preheated raw fabric is inserted by the mover, a second mold having an at least partially corresponding shape to the first mold, and an injection resin introduced into the second mold, wherein the first mold includes: a base member on which an embossed pattern to be transferred to the preheated raw fabric is formed, a vacuum hole through which the preheated raw fabric is adsorbed onto the base member, and a spring core protruding from the base member and contacting at least a portion of the preheated raw fabric inserted into the first mold.

Vehicle interior material manufacturing apparatus and method for manufacturing vehicle interior material

A method of manufacturing an engine piston may include performing upper-body formation for forming an upper body as an upper portion of a piston body by pressing a powder-type sintered material, performing lower-body formation for forming a lower body as a lower portion of the piston body by pressing a powder-type sintered material, performing bonding for forming the piston body by providing a brazing material between the upper body and the lower body and brazing the upper body and the lower body to each other while sintering a sintered material, performing machining for removing pores from the surface of the piston body by machining the surface, and performing heat treatment for forming a passive film by performing at least one of nitriding heat treatment or oxidation heat treatment on the surface of the piston body.

Engine piston and method of manufacturing the same

A polypropylene composite resin composition includes: 30 to 70% by weight of high crystalline block copolymer polypropylene, based on the total weight of the polypropylene composite resin composition; 10 to 20% by weight of a rubber elastomer, based on the total weight of the polypropylene composite resin composition; 10 to 18% by weight of a reinforcing material, based on the total weight of the polypropylene composite resin composition; 2 to 4% by weight of a mercaptosilane coupling agent, based on the total weight of the polypropylene composite resin composition; and 1 to 5% by weight of a slip agent, based on the total weight of the polypropylene composite resin composition.

Polypropylene composite resin composition having excellent scratch resistance and mechanical properties

A thermoplastic polyurethane resin composition having enhanced texture and durability is capable of ensuring excellent appearance quality by applying polyester polyol including, polytetramethylene ether glycol and polydimethylsiloxane diol to an existing thermoplastic polyurethane resin composition, having excellent mechanical properties and long-term durability, such as anti-scratch and abrasion resistance, while largely enhancing texture quality, largely reducing producing costs by replacing a material such as natural leather, reducing generation of a volatile organic compound (VOC), and using the VOC in a surface material for a vehicle interior material.

Thermoplastic polyurethane resin composition having enhanced texture and durability and production method thereof

Compositions of high-rigid polypropylene composite resin are provided herein. Such compositions having excellent tactile sensation and dimensional stability, and more particularly, the compositions of polypropylene composite resin having excellent tactile sensation such as thermoplastic rubber, excellent impact strength and rigidity, and low shrinkage anisotropy. The compositions of polypropylene composite resin provided herein also have excellent impact strength and rigidity as well as excellent tactile sensation such as a thermoplastic rubber and low shrinkage anisotropy. Thus, they exhibit excellent moldability and the compositions can be molded into a vehicle component. Furthermore, the compositions of polypropylene composite resin have excellent tactile sensation and can be used as a high-quality material that does not require separate painting and maintains excellent physical properties and dimensional stability as a vehicle component.

Compositions of polypropylene having excellent tactile sensation and dimensional stability

According to an aspect of the present disclosure, a polyolefine resin composition includes 1 to 20 parts by weight of one polyolefine resin having a first melt index; 1 to 20 parts by weight of another polyolefine resin having a second melt index different from the first melt index; 60 to 85 parts by weight of an inorganic filler; and 5 to 20 parts by weight of a fluorine-acrylic copolymer-based compound.

Polyolefine resin composition, polyolefine master batch, method of manufacturing polyolefine master batch, and article formed of the same

A polypropylene composite resin composition with fiber texture includes a polypropylene resin including homo-polypropylene, a first ethylene-propylene copolymer, a second ethylene-propylene copolymer or a combination thereof, and an ethylene/&#x3b1;-olefin copolymer, and a molded article manufactured using the same.

Polypropylene composite resin composition with fiber texture

A supercritical COgeneration system using plural heat sources, includes: a pump configured to circulate a working fluid; heat exchangers configured to heat the working fluid using an external heat source; turbines configured to be driven by the working fluid heated by passing through the heat exchanger; and recuperators configured to exchange heat between the working fluid passing through the turbine and the working fluid passing through the pump to cool the working fluid passing through the turbine, in which the heat exchanger includes constrained heat exchangers having an emission regulation condition of an outlet end and heat exchangers without the emission regulation condition.

Supercritical COgeneration system applying plural heat sources

Disclosed herein is a hybrid power generation system. The hybrid power generation system may enhance efficiency of production of electricity and heating heat by integrating power generation using supercritical carbon dioxide (CO) and cogeneration.

Hybrid power generation system

A method for manufacturing a lighting button key is provided. The method includes forming a button body by processing a metal plate, attaching a thin film to the button body and performing double etching on a rear surface of the button body to process a symbol pattern. Additionally, the method includes press-forming the rear surface of the button body and an injection material of a transparent or translucent material into the rear surface of the button body to perform injection molding.

Method for manufacturing lighting button key

Disclosed herein is a supercritical COgeneration system using plural heat sources, including: a pump configured to circulate a working fluid; plural heat exchangers configured to heat the working fluid using an external heat source; plural turbines configured to be driven by the working fluid heated by passing through the heat exchanger; and plural recuperators configured to exchange heat between the working fluid passing through the turbine and the working fluid passing through the pump to cool the working fluid passing through the turbine and heat the working fluid passing through the pump, in which the heat exchanger may include plural constrained heat exchangers having an emission regulation condition of an outlet end and plural heat exchangers without the emission regulation condition.

Supercritical CO2 generation system applying recuperator per each heat source

Disclosed herein is a supercritical carbon dioxide power generation system utilizing a plurality of heat sources, comprising: a pump for circulating a working fluid; a plurality of heat exchangers for heating the working fluid through an external heat source; a plurality of turbines driven by the working fluid heated through the heat exchangers; and a plurality of recuperators that allow the working fluid passed through the turbines and the working fluid passed through the pump to heat exchange with each other to cool the working fluid passed through the turbine, wherein the plurality of heat exchangers are sequentially disposed from a high temperature region at an inlet end into which waste heat gas stream is introduced up to a low temperature region at an outlet end through which the waste heat gas stream is discharged via a mediate temperature region.

Supercritical carbon dioxide power generation system utilizing plural heat sources

A low gloss ASA-based resin composition having excellent weatherability and heat resistance is provided. The low gloss ASA-based resin composition is obtained by blending a general SAN copolymer, a heat-resistant SAN copolymer, a crosslinked aromatic vinyl compound-cyanide vinyl compound copolymer, and an amorphous inorganic material with large diameter and extra-large diameter ASA graft copolymers at a predetermined composition ratio. The low gloss ASA-based resin composition is useful in the manufacture of a high-quality molded article in which gloss characteristics are uniformly exhibited because impact resistance, heat resistance, flowability, weatherability, and low gloss characteristics are all excellent, and particularly, the gloss deviation on the entire surface of the injection molded article is significantly reduced.

Low gloss ASA-based resin composition having excellent weatherability and heat resistance

Growing community of inventors

Yongin-si, South Korea

Hak Soo Kim