公开(公告)号：US20210055246A1

公开(公告)日：2021-02-25

申请号：US16684214

申请日：2019-11-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Woo Seok YANG ,  Sunghoon HONG ,  Yong Suk YANG ,  Bonjin KOO

IPC: G01N27/22 ,  H01G4/008 ,  H01G4/14 ,  H01G4/40 ,  H01Q1/22 ,  G06K19/07

Abstract: Provided is a humidity sensor including a support body, an RFID chip, an antenna, and a capacitor on the support body, a top cover sheet on the RFID chip and the antenna, and a hydrophobic material pattern on the capacitor, wherein the capacitor is exposed by the top cover sheet, the hydrophobic material pattern has a network shape including a plurality of holes, and an electrostatic capacitance of the capacitor changes according to humidity.

公开(公告)号：US20170312849A1

公开(公告)日：2017-11-02

申请号：US15583155

申请日：2017-05-01

Applicant: Electronics and Telecommunications Research Institute ,  Daelim Chemical Co., Ltd.

Inventor： Yong Suk YANG ,  hong hyun SHIN ,  Bonjin KOO ,  In-Kyu YOU ,  sunghoon HONG

IPC: B23K13/01 ,  H05B6/14 ,  B23K37/06 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y40/00 ,  H05B6/44 ,  B28B1/00

CPC classification number: B23K13/01 ,  B22F3/008 ,  B22F2999/00 ,  B23K37/06 ,  B28B1/001 ,  B29C48/00 ,  B29C48/15 ,  B29C64/209 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y70/00 ,  H05B6/14 ,  H05B6/44 ,  B22F3/20 ,  B22F3/003

Abstract: An extruder for a metal material includes a cylinder having a receiving space in which a solid metal material is provided, a nozzle extending from a lower end of the cylinder, an upper coil provided on an outer surface of the cylinder and melting the solid metal material to form a liquid metal material, and a first lower coil provided on an outer surface of the nozzle to control an extruded shape of the liquid metal material.