公开(公告)号：US20240317604A1

公开(公告)日：2024-09-26

申请号：US18578923

申请日：2022-07-07

Applicant: TODA KOGYO CORP.

Inventor： Tomohiro HONDA ,  Anyu ZHANG ,  Masayuki YOKOTA ,  Nobuyuki TAGAMI

IPC: C01G53/10 ,  C01D5/02 ,  C01D5/16

CPC classification number: C01G53/10 ,  C01D5/02 ,  C01D5/16

Abstract: The present invention is to provide a process for removing magnesium contained as an impurity from nickel sulfate and producing high-purity nickel sulfate.
The process for producing an aqueous nickel sulfate solution from which magnesium is removed from nickel sulfate, comprises the following steps (1) to (3):



(1) a carbonation step obtaining a slurry comprising nickel carbonate as a solid content by mixing a nickel sulfate aqueous solution and lithium carbonate,
(2) a solid-liquid separation step of separating the slurry obtained in the carbonation step into a solid content and liquid component, and
(3) a dissolution step dissolving the solid content obtained in said solid-liquid separation step with a solution containing sulfuric acid.

公开(公告)号：US20240243476A1

公开(公告)日：2024-07-18

申请号：US18686603

申请日：2022-08-15

Applicant: TODA KOGYO CORP.

Inventor： Satoshi OHMAE ,  Tetsuya KIMURA ,  Akihiro OHASHI

IPC: H01Q7/06 ,  H01F1/34 ,  H01F38/14

CPC classification number: H01Q7/06 ,  H01F1/34 ,  H01F38/14

Abstract: A ferrite sheet includes a substrate, a sintered ferrite plate provided on a surface of the substrate via an adhesive layer, and a protective layer provided on a surface of the sintered ferrite plate. The protective layer includes at least one groove that extends to at least the sintered ferrite plate and does not extend to a surface of the substrate that is not in contact with the adhesive layer.

公开(公告)号：US10892483B2

公开(公告)日：2021-01-12

申请号：US16561761

申请日：2019-09-05

Applicant: TODA KOGYO CORP.

Inventor： Kazumichi Koga ,  Hiroaki Masukuni ,  Kazutoshi Matsumoto

IPC: H01M4/505 ,  C01G45/12 ,  H01M4/131 ,  H01M10/0525 ,  C01G41/00

Abstract: Positive electrode active material particle powder includes: lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50) of the secondary particles being from 4 μm to 20 μm, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape having at least one plane that is adjacent to two planes.

公开(公告)号：USD894773S1

公开(公告)日：2020-09-01

申请号：US29707340

申请日：2019-09-27

Applicant: TODA KOGYO CORP. ,  SECURITAG ASSEMBLY GROUP CO., LTD.

Designer： Jun Koujima ,  Mark Chang ,  Yoshiteru Kouno ,  Peter Yan

公开(公告)号：USD874463S1

公开(公告)日：2020-02-04

申请号：US29646730

申请日：2018-05-07

Applicant: TODA KOGYO CORP. ,  SECURITAG ASSEMBLY GROUP CO., LTD.

Designer： Jun Koujima ,  Mark Chang ,  Yoshiteru Kouno ,  Peter Yan

公开(公告)号：US09691528B2

公开(公告)日：2017-06-27

申请号：US14389102

申请日：2013-03-14

Applicant: TODA KOGYO CORP.

Inventor： Yasushi Nishio ,  Hiromitsu Sakurai ,  Norihiro Fukushina ,  Yasuhiko Fujii

IPC: H01F1/11 ,  H01F1/113 ,  H01F1/01 ,  C01G49/02 ,  C04B35/26 ,  C04B35/626 ,  C01G49/00

CPC classification number: H01F1/01 ,  C01G49/0018 ,  C01G49/0036 ,  C01G49/02 ,  C01P2004/20 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/42 ,  C04B35/26 ,  C04B35/6261 ,  C04B35/62645 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3409 ,  C04B2235/5409 ,  C04B2235/5436 ,  H01F1/113 ,  Y10T428/2982

Abstract: The present invention relates to ferrite particles for bonded magnets having a bulk density of not more than 0.75 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles and the composition, and a rotor. The ferrite particles for bonded magnets and the resin composition for bonded magnets according to the present invention are capable of providing a bonded magnet molded product having a good tensile elongation and an excellent magnetic properties.

公开(公告)号：US20100255188A1

公开(公告)日：2010-10-07

申请号：US12816833

申请日：2010-06-16

Applicant: Toru MAEDA ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

Inventor： Toru MAEDA ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Hirokazu Kugai ,  Kazuyuki Hayashi ,  Hiroko Morii ,  Seiji Ishitani

IPC: B05D5/12

CPC classification number: B22F1/02 ,  B22F2998/10 ,  H01F1/24 ,  H01F1/26 ,  H01F41/0246 ,  Y10T428/2991 ,  B22F3/02 ,  B22F3/24

Abstract: A soft magnetic material is a soft magnetic material including a composite magnetic particle (30) having a metal magnetic particle (10) mainly composed of Fe and an insulating coating (20) covering metal magnetic particle (10), and insulating coating (20) contains an iron phosphate compound and an aluminum phosphate compound. The atomic ratio of Fe contained in a contact surface of insulating coating (20) in contact with metal magnetic particle (10) is larger than the atomic ratio of Fe contained in the surface of insulating coating (20). The atomic ratio of Al contained in the contact surface of insulating coating (20) in contact with metal magnetic particle (10) is smaller than the atomic ratio of Al contained in the surface of insulating coating (20). Thus, iron loss can be reduced.

Abstract translation: 软磁性材料是包括具有主要由Fe构成的金属磁性粒子（10）和覆盖金属磁性粒子（10）的绝缘涂层（20）的复合磁性体（30）和绝缘涂层（20）的软磁性材料， 含有磷酸铁化合物和磷酸铝化合物。 包含在与金属磁性颗粒（10）接触的绝缘涂层（20）的接触表面中的Fe的原子比大于绝缘涂层（20）表面中所含的Fe的原子比。 绝缘涂层（20）与金属磁性颗粒（10）接触的接触表面中所含的Al的原子比小于绝缘涂层（20）表面中的Al的原子比。 因此，可以减少铁损。

公开(公告)号：US20090047519A1

公开(公告)日：2009-02-19

申请号：US12160079

申请日：2006-11-22

Applicant: Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Seiji Ishitani ,  Hiroko Morii ,  Kazuyuki Hayashi

Inventor： Toru Maeda ,  Naoto Igarashi ,  Haruhisa Toyoda ,  Seiji Ishitani ,  Hiroko Morii ,  Kazuyuki Hayashi

IPC: B32B15/02 ,  B05D5/12

CPC classification number: H01F1/24 ,  B22F1/02 ,  B22F2998/10 ,  C22C33/02 ,  H01F1/26 ,  H01F3/08 ,  H01F41/0246 ,  Y10T428/2991 ,  Y10T428/2998 ,  B22F1/007 ,  B22F3/02 ,  B22F3/10

Abstract: The soft magnetic material includes a plurality of composite magnetic particles having a metal magnetic particle and an insulating film surrounding the surface of the metal magnetic particle. The metal magnetic particle contains iron as the main component. The insulating film contains aluminum, silicon, phosphorus, and oxygen. The insulating film satisfies the relationship 0.4≦MAl/(MAl+MSi)≦0.9 and the relationship of 0.25≦(MAl+MSi)/MP≦1.0 in the case that molar amount of aluminum contained in the insulating film is represented by MAl, the sum of the molar amount of aluminum contained in the insulating film and the molar amount of silicon contained in the insulating film is represented by (MAl+MSi), and the molar amount of phosphorus contained in the insulating film is represented by MP.

Abstract translation: 软磁性材料包括具有金属磁性颗粒的多个复合磁性颗粒和围绕金属磁性颗粒表面的绝缘膜。 金属磁性粒子含有铁作为主要成分。 绝缘膜含有铝，硅，磷和氧。 在绝缘膜中含有的铝的摩尔量为绝对膜的情况下，绝缘膜满足关系0.4 <= MA1 /（MA1 + MSi）<= 0.9，0.25 <=（MA1 + MSi）/ MP < 由MA1表示，绝缘膜中所含的铝的摩尔量与绝缘膜中所含的硅的摩尔量之和表示为（MA1 + MSi），表示绝缘膜中所含的磷的摩尔量 由MP。

公开(公告)号：US5389482A

公开(公告)日：1995-02-14

申请号：US872399

申请日：1992-04-23

Applicant: Yoji Okano ,  Kazuo Fujioka ,  Koso Aoki ,  Hiromitsu Misawa ,  Eiichi Kurita ,  Yasuhiko Fujii

Inventor： Yoji Okano ,  Kazuo Fujioka ,  Koso Aoki ,  Hiromitsu Misawa ,  Eiichi Kurita ,  Yasuhiko Fujii

IPC: G03G9/083 ,  G06K1/12 ,  H01F1/11 ,  H01F41/16

CPC classification number: H01F41/16 ,  G03G9/0833 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0839 ,  G06K1/125 ,  H01F1/112

Abstract: A specific magnetic particle powder is described, which is included in magnetic toners used for magnetic image character recognition (MICR). The magnetic particle powder is a magnetite particle and distinguished by the facts that its residual magnetization is of 12 to 20 emu/g, its Fe.sup.2+ content is of 18.5 to 22.5% by weight, its surface is deposited with Si or Al oxide or mixture thereof and its specific surface area is of 3.5 to 9.5 m.sup.2 /g. The magnetic particle powder used as one component of the magnetic toner enables the formation of fine accurate images and the exact detection of the image.

Abstract translation: 描述了特定的磁性颗粒粉末，其被包括在用于磁图像字符识别（MICR）的磁性调色剂中。 磁粉颗粒是磁铁矿颗粒，其剩余磁化强度为12至20emu / g，其Fe2 +含量为18.5至22.5重量％，其表面用Si或Al氧化物或其混合物沉积 其比表面积为3.5〜9.5m 2 / g。 用作磁性调色剂的一个组分的磁性颗粒粉末能够形成精确的精确图像和精确的图像检测。

公开(公告)号：US5378380A

公开(公告)日：1995-01-03

申请号：US22847

申请日：1993-02-25

Applicant: Masaru Isoai ,  Tosiharu Harada ,  Tokihiro Kurata ,  Kazuhiro Fujita ,  Kazushi Takama ,  Shigekazu Jikuhara

Inventor： Masaru Isoai ,  Tosiharu Harada ,  Tokihiro Kurata ,  Kazuhiro Fujita ,  Kazushi Takama ,  Shigekazu Jikuhara

IPC: C01G49/06 ,  C01G49/08

CPC classification number: B82Y30/00 ,  C01G49/06 ,  C01G49/08 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/51 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/42

Abstract: Disclosed herein are a process for producing acicular goethite particles comprising the step of: blowing an oxygen-containing gas into a ferrous salt reaction solution containing colloidal ferrous hydroxide or iron-containing colloidal precipitates which is obtained by reacting an aqueous ferrous salt solution with less than one equivalent of an aqueous alkali hydroxide solution, an aqueous alkali carbonate solution, or an aqueous alkali hydroxide and alkali carbonate solution based on Fe.sup.2+ in said aqueous ferrous salt solution, in the presence of ascorbic acid or a salt thereof so as to oxidize said colloidal ferrous hydroxide or iron-containing colloidal precipitates and to produce acicular goethite particles throught green rust; and a process for producing acicular magnetic iron oxide particles by reducing the acicular goethite particles obtained in the above process to produce acicular magnetite particles, and if necessary, oxidizing the acicular magnetite particles to obtain acicular maghemite particles, and if necessary, modifying the acicular magnetite or maghemite particles with Co or Co and Fe.sup.2+.

Abstract translation: 本文公开了一种制备针状针铁矿颗粒的方法，包括以下步骤：将含氧气体吹入含有胶态氢氧化亚铁或含铁胶体沉淀物的亚铁盐反应溶液中，该溶液通过使亚铁盐水溶液与小于 一种碱金属氢氧化物水溶液，碱金属碳酸盐水溶液或碱金属氢氧化物和碱金属碳酸盐水溶液中，在所述含水亚铁盐水溶液中，在抗坏血酸或其盐的存在下，氧化所述胶体 含氢氧化铁或含铁胶体沉淀物，并通过绿锈生成针状针铁矿颗粒; 以及通过将上述方法中得到的针状针铁矿粒子还原而制造针状磁性氧化铁粒子的方法，制造针状磁铁矿粒子，根据需要，根据需要氧化针状磁铁矿粒子，得到针状磁赤铁矿粒子，根据需要，对针状磁铁矿 或具有Co或Co和Fe2 +的磁赤铁矿颗粒。