公开(公告)号：US20170184557A1

公开(公告)日：2017-06-29

申请号：US15300514

申请日：2015-03-17

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： SeungHoon NAHM ,  Un Bong BAEK ,  Seok Cheol LEE ,  InHyun CHEONG

IPC: G01N33/00 ,  G01N27/12

CPC classification number: G01N33/005 ,  G01N27/125 ,  G01N27/127

Abstract: The present invention relates to a sensor for sensing hydrogen. The sensor of the present invention comprises: a core which reacts with hydrogen to change a resistance value; at least two electrodes connected to the core; and a variable resistor which is connected to at least one of the two electrodes and of which the resistance value changes in response to a control signal, wherein the core includes palladium having a thin film shape, and graphene which is applied on the palladium and has a thin film shape.

公开(公告)号：US20200225221A1

公开(公告)日：2020-07-16

申请号：US16622175

申请日：2018-05-31

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Seung Hoon NAHM ,  Nam Hee LEE ,  Kwon Sang RYU ,  Un Bong BAEK

IPC: G01N33/551 ,  G01N29/02 ,  G01N29/036

Abstract: The present invention relates to a nano-dynamic biosensor and a fabrication method therefor. A biosensor according to the present invention comprises a substrate having a hollow structure and a graphene layer formed thereon wherein a probe material is bound to the surface of the graphene layer and the resonance vibration of the hollow structure formed in the substrate is modulated as the probe material increases in weight when a target material to be detected is coupled to the probe material without being labeled, whereby the biosensor is expected to take advantage of the modulation to measure the coupling of the target material including vaccinia virus with high sensitivity on a femtogram (10−15 g) level.

公开(公告)号：US20180015543A1

公开(公告)日：2018-01-18

申请号：US15652839

申请日：2017-07-18

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Seung Wook BAEK ,  Seung Hoon NAHM ,  Un Bong BAEK

IPC: B22F3/15

CPC classification number: B22F3/15 ,  B22F2301/35 ,  B22F2998/10 ,  C22C1/05 ,  C22C1/10 ,  B22F9/082 ,  B22F9/14 ,  B22F9/16 ,  B22F9/04 ,  B22F3/02 ,  B22F3/10 ,  B22F3/17 ,  B22F3/20 ,  B22F3/18

Abstract: Provided is a metal powder bonded body having excellent hydrogen embrittlement resistance, wherein the metal powder bonded body is a metallic material having excellent hydrogen embrittlement resistance, the metallic material is a metal powder bonded body manufactured by bonding metal powder, and the metal powder bonded body has characteristics of ductile fracture in an area of 80% or more of a total area of a fracture section when fractured in a hydrogen atmosphere.

公开(公告)号：US20180015540A1

公开(公告)日：2018-01-18

申请号：US15652884

申请日：2017-07-18

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Seung Wook BAEK ,  Seung Hoon NAHM ,  Un Bong BAEK

IPC: B22F3/00 ,  B22F3/10

CPC classification number: B22F3/008 ,  B22F3/10 ,  B22F3/1055 ,  B22F2301/35 ,  B33Y80/00 ,  C22C1/045 ,  C22C1/0458 ,  C22C1/10 ,  C22C1/1084 ,  C22C33/02 ,  F17C1/00 ,  F17C1/14 ,  F17C2203/0617 ,  F17C2203/0636 ,  F17C2221/012 ,  F17C2223/0123 ,  F17C2223/035 ,  Y02P10/295

Abstract: Provided is a metal powder bonded body having excellent hydrogen embrittlement resistance, wherein the metal powder bonded body is a metallic material having excellent hydrogen embrittlement resistance, the metallic material is a metal powder bonded body manufactured by incrementally adding metal powder layer by layer, and the metal powder bonded body has characteristics of ductile fracture in an area of 80% or more of a total area of a fracture section when fractured in a hydrogen atmosphere.