公开(公告)号：US20240196581A1

公开(公告)日：2024-06-13

申请号：US18284720

申请日：2022-08-02

Applicant: KOREA INSTITUTE OF MATERIALS SCIENCE

Inventor： Byeong Jin PARK ,  Tae Hoon KIM ,  Sang Bok LEE ,  Byung Mun Jung ,  Seung Han RYU ,  Yu Kyung HAN ,  Suk Jin KWON

IPC: H05K9/00

CPC classification number: H05K9/009

Abstract: The present invention provides an electromagnetic wave-absorbing composite material and a manufacturing method therefor, the electromagnetic wave-absorbing composite material comprising: a polymer composite including a refractive index-adjusting material therein; and a plurality of conductive wires formed on at least one surface of the polymer composite, wherein electromagnetic waves reflected in a matching frequency (f) range derived through Mathematical Formulas 1 to 3 described in the present invention are 0.2 dB or less.

公开(公告)号：US20230282399A1

公开(公告)日：2023-09-07

申请号：US18007664

申请日：2021-11-09

Applicant: KOREA INSTITUTE OF MATERIALS SCIENCE

Inventor： Jung Goo LEE ,  Hee Ryoung CHA ,  Ga Yeong KIM ,  Tae Hoon KIM ,  Young Kuk KIM ,  Youn Kyoung BAEK

IPC: H01F1/153

CPC classification number: H01F1/15325 ,  H01F1/15341

Abstract: Proposed are a method of manufacturing an anisotropic rare-earth bulk magnet, the method being capable of suppressing formation of ReFe2 phase, and an anisotropic rare-earth bulk magnet having excellent magnetic properties.