公开(公告)号：US11827750B2

公开(公告)日：2023-11-28

申请号：US17186294

申请日：2021-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Osaka Gas Chemicals Co., Ltd.

Inventor： Nobuji Sakai ,  Hiroko Endo ,  Yukika Yamada ,  Eigo Miyazaki ,  Rie Yasuda ,  Shinsuke Miyauchi

IPC: C08G75/0236

CPC classification number: C08G75/0236

Abstract: A triazine ring-containing polymer having a high refractive index and a low birefringence, and being capable of being subjected to injection molding, wherein the polymer having a repeating unit of *-[A-B-]-*, including a structural unit A derived from a triazinedithiol compound, and a structural unit B including an aromatic hydrocarbon group; and a thermoplastic resin, a thermoplastic article, and an optical part including the polymer.

公开(公告)号：US20130157186A1

公开(公告)日：2013-06-20

申请号：US13718301

申请日：2012-12-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Manabu ONO ,  Osamu Ieda ,  Takahiro Ishii ,  Hiroaki Yoshida ,  Akira Kambayashi ,  Hiroko Endo ,  Motomi Noguchi

IPC: G03G9/107 ,  G03G13/08

Abstract: A magnetic carrier having excellent charge-imparting ability includes a magnetic particle and a coating layer disposed on a surface of the magnetic particle. The coating layer includes at least a resin component including an acrylic polymer and hydrotalcite dispersed in a form of particles having a predetermined number-average particle. A content of the hydrotalcite CH (parts by weight) is in a range of approximately 3 or more to approximately 30 parts by weight or less based on 100 parts by weight of the resin component. A content of the acrylic monomer unit CA (mol %) with respect to a total monomer unit included in the resin component and the content of the hydrotalcite CH satisfy the following relationship: 78≦CH×0.38+CA≦99.

Abstract translation: 具有优异的电荷赋予能力的磁性载体包括磁性颗粒和设置在磁性颗粒表面上的涂层。 涂层至少包括一种包含分散在具有预定数均粒子的颗粒形式的丙烯酸聚合物和水滑石的树脂组分。 基于100重量份的树脂成分，水滑石CH（重量份）的含量在约3以上至约30重量份以下的范围内。 丙烯酸类单体单元CA（摩尔％）相对于包含在树脂成分中的总单体单元的含量和水滑石CH的含量满足以下关系：78 @ CH×0.38 + CA @ 99。

公开(公告)号：US10100249B2

公开(公告)日：2018-10-16

申请号：US15353062

申请日：2016-11-16

Applicant: Samsung Electronics Co., Ltd.

Inventor： Takuya Kitabatake ,  Fusaki Fujibayashi ,  Hiroko Endo ,  Masahide Yamada

IPC: C09K11/08 ,  C09K11/59 ,  H01L33/00 ,  C09K11/77 ,  C04B35/584 ,  C01B21/06 ,  C04B35/626 ,  H01L33/50

Abstract: A phosphor includes a nitride including an alkaline-earth metal element, silicon, and an activator element, wherein the phosphor has a volume average particle diameter ranging from about 50 nm to about 400 nm, and an internal quantum efficiency of greater than or equal to about 60% at an excitation wavelength of 450 nm, the phosphor is represented by a formula M2Si5N8, the M includes one or more alkaline-earth metal element selected from Ca, Sr, Ba, and Mg and including at least Sr, and one or more activator element selected from Eu and Ce and including at least Eu, an amount of the Sr included in the phosphor is about 15 mol % to about 99 mol % based on total moles of the M, and an amount of the activator element included in the phosphor is about 1 mol % to 20 mol % based on the total moles of the M.

公开(公告)号：US09856418B2

公开(公告)日：2018-01-02

申请号：US14803566

申请日：2015-07-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Takuya Kitabatake ,  Fusaki Fujibayashi ,  Hiroko Endo ,  Masahide Yamada ,  Takatoshi Seto

IPC: C09K11/08 ,  C09K11/59 ,  H01L33/00 ,  C09K11/77

CPC classification number: C09K11/7734 ,  C09K11/7792

Abstract: Disclosed is a phosphor including at least one of a nitride and an oxynitride, wherein the nitride and the oxynitride contain an alkaline-earth metal element, silicon, and an activator element. wherein the phosphor has a volume average particle diameter of greater than or equal to about 50 nm and less than or equal to about 400 nm and an inner quantum efficiency of greater than or equal to about 60% at an excitation wavelength of about 450 nm. The method of preparing a phosphor includes a precursor preparation process of preparing a phosphor precursor particles including a silicon nitride particles, a compound containing an alkaline-earth metal element, and a compound containing an activator element, wherein the compound containing an alkaline-earth metal element and the compound containing an activator element are deposited on the surface of the silicon nitride particles; and a firing process of firing the phosphor precursor particles.

公开(公告)号：US10139743B2

公开(公告)日：2018-11-27

申请号：US15408887

申请日：2017-01-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Takuya Kitabatake ,  Fusaki Fujibayashi ,  Hiroko Endo ,  Masahide Yamada ,  Kensuke Kubo

IPC: G03G9/09 ,  G03G9/087 ,  G03G9/08

Abstract: A toner for developing electrostatic images includes a binder, a colorant, iron, silicon, and sulfur. The colorant includes a phosphor and a non-fluorescent colorant. The phosphor includes either one or both of a nitride and an oxynitride each including an alkaline-earth metal, silicon, and an activator element. A volume average particle diameter of the phosphor is greater than or equal to about 50 nm and less than or equal to about 400 nm. An internal quantum efficiency of the phosphor at an excitation wavelength of 450 nm is greater than or equal to about 60%.