公开(公告)号：KR20200130811A

公开(公告)日：2020-11-20

申请号：KR20207024571

申请日：2019-03-12

Applicant: TODA KOGYO CORP

Inventor： NOMURA SATOSHI ,  NISHIO YASUSHI ,  NAKATSUKASA MANATO ,  OKANO YOJI ,  FUJII YASUHIKO

IPC: C01G49/00 ,  C04B35/26 ,  H01F1/36 ,  H01F1/375

Abstract: 본발명은예를들어, 860℃의저온에서도소결가능하게되는 Ni-Zn-Cu계페라이트분말을제공하는것을목적으로한다. 본발명은 Fe2O3을 49mol% 이하, NiO를 5 내지 25mol%, ZnO를 15 내지 40mol%, CuO를 5 내지 15mol% 및 CoO를 0 내지 3mol% 함유하고, 결정자크기가 180㎚이하인것을특징으로하는 Ni-Zn-Cu계페라이트분말이며, 해당 Ni-Zn-Cu계페라이트분말을사용한소결체, 또는페라이트시트에관한것이다.

公开(公告)号：EP2833377A4

公开(公告)日：2015-12-09

申请号：EP13767468

申请日：2013-03-14

Applicant: TODA KOGYO CORP

Inventor： NISHIO YASUSHI ,  SAKURAI HIROMITSU ,  FUKUSHINA NORIHIRO ,  FUJII YASUHIKO

IPC: H01F1/11 ,  H01F1/113

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

公开(公告)号：EP2833377B1

公开(公告)日：2017-05-03

申请号：EP13767468

申请日：2013-03-14

Applicant: TODA KOGYO CORP

Inventor： NISHIO YASUSHI ,  SAKURAI HIROMITSU ,  FUKUSHINA NORIHIRO ,  FUJII YASUHIKO

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

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

公开(公告)号：EP2983178A4

公开(公告)日：2016-10-26

申请号：EP14778820

申请日：2014-04-01

Applicant: TODA KOGYO CORP

Inventor： NISHIO YASUSHI ,  FUJII YASUHIKO ,  SAKURAI HIROMITSU

IPC: C01G49/00 ,  B29C45/00 ,  H01F1/11

CPC classification number: B29C45/0001 ,  B29K2505/12 ,  B29L2031/00 ,  C01G49/0036 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/42 ,  H01F1/11

Abstract: The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which can provide a bonded magnet molded product capable of realizing a high magnetic force and a complicated multipolar waveform owing to such a feature that the ferrite particles are readily and highly oriented against an external magnetic field in a flowing resin upon injection molding, as well as a bonded magnet molded product obtained by injection-molding the above composition. According to the present invention, there are provided ferrite particles for bonded magnets which have a crystallite size of not less than 500 nm as measured in an oriented state by XRD, and an average particle diameter of not less than 1.30 µm as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the composition.

公开(公告)号：EP3065149A4

公开(公告)日：2017-07-12

申请号：EP14858374

申请日：2014-10-30

Applicant: TODA KOGYO CORP

Inventor： NISHIMOTO KAZUSHI ,  OKANO YOJI ,  SAKURAI HIROMITSU ,  YAMAMOTO KAZUMI ,  DOTE TOMOHIRO ,  NISHIO YASUSHI ,  FUJII YASUHIKO

IPC: H01F1/37 ,  H01F38/14

CPC classification number: H01F1/37 ,  C22C2202/02 ,  H01F27/255 ,  H01F38/14 ,  H01F41/0246 ,  H02J7/025 ,  H02J50/10

公开(公告)号：EP3202717A4

公开(公告)日：2018-04-25

申请号：EP15847303

申请日：2015-09-29

Applicant: TODA KOGYO CORP

Inventor： NISHIO YASUSHI ,  NOMURA SATOSHI ,  FUJII YASUHIKO ,  SAKURAI HIROMITSU

IPC: C01G49/00 ,  H01F1/11 ,  H01F1/113

CPC classification number: H01F1/113 ,  C01G49/0018 ,  C01P2002/70 ,  C01P2004/61 ,  C01P2006/42 ,  C08K3/0008 ,  C08K3/01 ,  C08K2201/01 ,  H01F1/11

Abstract: The object of the present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which is capable of obtaining a bonded magnet molded product having a good magnetic force and a magnetic waveform as well as high iHc and Hk by injection molding. The present invention aims at providing a bonded magnet molded product using the ferrite particles and the resin composition. The aforementioned object of the present invention can be achieved by ferrite particles for bonded magnets which have a crystal distortion of not more than 0.14 as measured by XRD, and an average particle diameter of not less than 1.30 µ m as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the resin composition.

公开(公告)号：EP3057110A4

公开(公告)日：2017-04-12

申请号：EP14850524

申请日：2014-09-30

Applicant: TODA KOGYO CORP

Inventor： NISHIO YASUSHI ,  SAKURAI HIROMITSU ,  FUKUSHINA NORIHIRO ,  FUJII YASUHIKO

IPC: H01F1/11 ,  C01G49/00 ,  C04B35/26 ,  C04B35/626 ,  C04B35/634 ,  C08K3/22 ,  H01F1/03 ,  H01F1/113 ,  H02K15/03

CPC classification number: H01F1/0306 ,  C01G49/0036 ,  C01G49/0063 ,  C01G49/009 ,  C01P2004/20 ,  C01P2004/22 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/10 ,  C01P2006/11 ,  C01P2006/12 ,  C01P2006/42 ,  C04B35/26 ,  C04B35/6261 ,  C04B35/62645 ,  C04B35/634 ,  C04B2235/3201 ,  C04B2235/3213 ,  C04B2235/3409 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/6022 ,  C04B2235/77 ,  C08K3/22 ,  C08K2003/2206 ,  C08K2003/2265 ,  H01F1/113

Abstract: According to the present invention, there are provided ferrite particles for bonded magnets and a resin composition for bonded magnets which are capable of producing a bonded magnet molded product having a good tensile elongation and exhibiting excellent magnetic properties, as well as a bonded magnet molded product such as a rotor which is obtained by using the resin composition. The present invention relates to ferrite particles for bonded magnets having a bulk density of not less than 0.5 g/cm 3 and less than 0.6 g/cm 3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles, and a molded product obtained by using the ferrite particles and the resin composition.

公开(公告)号：EP2136379A4

公开(公告)日：2011-12-28

申请号：EP08720480

申请日：2008-03-14

Applicant: TODA KOGYO CORP

Inventor： FUJII YASUHIKO ,  NISHIO YASUSHI ,  KANEFUJI KAZUHISA ,  ISHIDA TATSUYA ,  TAKARAGI SHIGERU

IPC: H01F1/11 ,  C01G49/00 ,  C04B35/26 ,  C09C1/24 ,  H01F1/113

CPC classification number: C01G49/0036 ,  C01P2004/61 ,  C01P2006/12 ,  C01P2006/42 ,  C04B35/2683 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3409 ,  C04B2235/3418 ,  C04B2235/444 ,  C04B2235/447 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/604 ,  C09C1/24 ,  H01F1/113

Abstract: The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which exhibit a good moldability, in particular, a good mechanical strength even when rapidly quenched upon injection-cooling, and is capable of producing a bonded magnet molded product having excellent magnetic properties, as well as a bonded magnet molded product such as a magnet roll using the ferrite particles and the resin composition. There are provided ferrite particles for bonded magnets which comprise phosphorus adsorbed and/or incorporated in ferrite, in which a content of the phosphorus in the ferrite is 120 to 5000 mg/kg (0.012 to 0.50% by weight) in terms of P; a resin composition for bonded magnets; and a magnet roll.

公开(公告)号：JP2013211351A

公开(公告)日：2013-10-10

申请号：JP2012079532

申请日：2012-03-30

Applicant: Toda Kogyo Corp ,  戸田工業株式会社

Inventor： NISHIO YASUSHI ,  SAKURAI HIROMITSU ,  FUKUSHINA TOKUHIRO ,  FUJII YASUHIKO

IPC: H01F1/11 ,  H01F1/117 ,  H01F7/02

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: PROBLEM TO BE SOLVED: To provide ferrite particle powder and a resin composition for bond magnet exhibiting excellent tensile elongation and capable of producing a bond magnet molding having excellent magnetic characteristics, and to provide a bond magnet molding, such as a rotor, using the ferrite particle powder and resin composition.SOLUTION: The ferrite particle powder for bond magnet has powder characteristics controlled so that the bulk density is 0.75 μm or less and the degree of compaction is 65% or more. A resin composition for bond magnet and a rotor are also provided.

Abstract translation: 要解决的问题：提供铁氧体颗粒粉末和表现出优异的拉伸伸长率的粘结磁体用树脂组合物，并且能够制造具有优异磁特性的粘结磁体模制品，并且使用铁氧体 颗粒粉末和树脂组合物。解决方案：用于粘结磁体的铁氧体颗粒粉末具有粉末特性控制，使得堆积密度为0.75μm以下，压实度为65％以上。 还提供了用于粘结磁体和转子的树脂组合物。

公开(公告)号：JP2009252906A

公开(公告)日：2009-10-29

申请号：JP2008097517

申请日：2008-04-03

Applicant: Toda Kogyo Corp ,  戸田工業株式会社

Inventor： NISHIO YASUSHI ,  FUJII YASUHIKO

IPC: H01F1/11 ,  C04B35/00 ,  H01F7/02

Abstract: PROBLEM TO BE SOLVED: To provide a ferrite particle powder for bond magnet and a resin composition for bond magnet which are excellent in compacting properties, especially, in mechanical strength even when quenched during injection cooling bond magnet compact, and can impart superior magnetic characteristics to a compact article, and to provide a bond magnet compact such as a magnet roll using the ferrite particle powder and the resin composition. SOLUTION: The ferrite particle powder for the bond magnet formed by adsorbing and/or incorporating a phosphoric acid compound which does not cause decomposition and/or in-molecule dehydration at 200 to 400°C is characterized in that ferrite contains phosphorus in an amount P of 120 to 5,000 mg/kg (0.012 to 0.5 wt.%). Further, there are provided the resin composition for the bond magnet and the magnet roll. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供粘合磁铁用铁氧体颗粒粉末和粘结磁体用树脂组合物，即使在注射冷却粘结磁体压实体中淬火时，其压实特性，特别是机械强度也优异，并且可以赋予优异的 磁性特征，并使用铁氧体颗粒粉末和树脂组合物提供诸如磁辊的粘结磁体压块。 解决方案：通过吸附和/或掺入在200-400℃不引起分解和/或分子内脱水的磷酸化合物形成的粘结磁体的铁氧体颗粒粉末的特征在于，铁素体含有磷 数量P为120〜5000mg / kg（0.012〜0.5重量％）。 此外，提供了用于粘结磁体和磁体辊的树脂组合物。 版权所有（C）2010，JPO＆INPIT