公开(公告)号：US11592721B2

公开(公告)日：2023-02-28

申请号：US16481026

申请日：2017-05-15

Applicant: LG ELECTRONICS INC.

Inventor： Sangmo Koo ,  Sooyeun Kim ,  Koun Park ,  Gukhwan An ,  Sanggeun Cho

IPC: C07D401/14 ,  G02F1/155 ,  G02F1/1516 ,  C09K9/02 ,  C07D213/22

Abstract: The present invention relates to an electrochromic compound, and an electrochromic composition and an electrochromic device, including the same. The electrochromic compound according to the present invention may achieve excellent black coloring effects and excellent curing characteristics, and thus may be used advantageously in an electrochromic device.

公开(公告)号：US10890819B2

公开(公告)日：2021-01-12

申请号：US16097158

申请日：2016-11-04

Applicant: LG ELECTRONICS INC.

Inventor： Sanggeun Cho ,  Sangmo Koo ,  Koun Park ,  Gukhwan An

IPC: G02F1/153 ,  B82B3/00 ,  G02F1/1524 ,  B82Y30/00 ,  C09K9/02

Abstract: The present invention relates to electrochromic nanoparticles having a core-shell structure, and a method for producing the same. In order to achieve the above or other objectives, an aspect of the present invention provides a method for producing electrochromic nanoparticles having a core-shell structure, the method comprising the steps of: preparing a core having a predetermined particle diameter; and adsorbing different types of electrochromic materials on the surface of the core, wherein the electrochromic materials have different absorption spectra. According to the present invention, it is possible to provide electrochromic nanoparticles having excellent shielding ability against visible rays and a method for producing the same.

公开(公告)号：US09552910B2

公开(公告)日：2017-01-24

申请号：US13962130

申请日：2013-08-08

Applicant: LG ELECTRONICS INC. ,  Industry-University Cooperation Foundation Hanyang University ERICA Campus

Inventor： Namseok Kang ,  Jinbae Kim ,  Yongho Choa ,  Jongyoul Kim ,  Gukhwan An ,  Sanggeun Cho

IPC: H01F1/01 ,  H01F1/37 ,  H01F1/113

CPC classification number: H01F1/01 ,  H01F1/113 ,  H01F1/37 ,  H01F41/0246 ,  H01F41/0266

Abstract: A ferrite magnet with salt includes 40 to 99.9 weight % of ferrite and 0.1 to 60 weight % of salt, wherein the salt has a melting point lower than a synthetic temperature of the ferrite, and the salt is melted to form a matrix between the ferrite particles, and a manufacturing thereof. The ferrite magnet with salt has advantages in terms of process conditions due to fast synthesis reaction at low temperatures compared to typical magnets, easily obtaining nano-sized particles having high crystallinity, preventing cohesion between particles and particle growth by molten salt, allowing sintering at temperatures lower than typical during the molding and sintering processes for producing a ferrite magnet with salt due to synthesized ferrite magnetic powder with salt thus preventing the deterioration of magnetic characteristics due to particle growth, and allowing alignment in the direction of magnetization easy axis to obtain higher magnetic characteristics.

Abstract translation: 具有盐的铁氧体磁体包含40至99.9重量％的铁素体和0.1至60重量％的盐，其中盐的熔点低于铁素体的合成温度，并且盐被熔化以在铁素体之间形成基质 颗粒及其制造。 具有盐的铁氧体磁体在工艺条件方面具有优势，因为与典型的磁体相比，在低温下快速的合成反应，容易获得具有高结晶度的纳米尺寸的颗粒，防止颗粒之间的内聚和通过熔融盐的颗粒生长，允许在温度 低于典型的用于由于合成的铁氧体磁性粉末与盐制造具有盐的铁氧体磁体的模制和烧结过程，从而防止由于颗粒生长导致的磁特性的劣化，并且允许在易磁化方向上的取向以获得更高的磁性 特点