公开(公告)号：US20160163437A1

公开(公告)日：2016-06-09

申请号：US14905292

申请日：2014-07-17

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: H01F1/28 ,  H01F41/02

CPC classification number: H01F1/28 ,  B22F1/0018 ,  B22F1/0059 ,  B22F1/0062 ,  B22F2998/10 ,  C01G49/08 ,  C01P2004/61 ,  C08J3/201 ,  C08J2363/02 ,  C08K9/04 ,  C08K2201/01 ,  C22C2202/02 ,  H01F1/445 ,  H01F41/0266 ,  B22F3/02 ,  B22F3/18 ,  B22F3/20 ,  B22F9/026 ,  B22F9/04

Abstract: A magnetic powder is obtained by removing a dispersion medium from a magnetic fluid that includes magnetic particles, a dispersant and the dispersion medium. A magnetic powder composition includes the magnetic powder and a resin material, and a magnetic powder composition molded body is obtained therefrom. A method of producing a magnetic powder includes removing a dispersion medium from a magnetic fluid containing magnetic particles, a dispersant and the dispersion medium, and powdering a solid component obtained by removing the dispersion medium. A method of producing a magnetic powder composition and a method of producing a magnetic powder composition molded product are also provided.

Abstract translation: 通过从包括磁性颗粒，分散剂和分散介质的磁性流体中除去分散介质来获得磁性粉末。 磁性粉末组合物包括磁性粉末和树脂材料，由此获得磁性粉末组合物成型体。 制造磁性粉末的方法包括从含有磁性颗粒的磁性流体，分散剂和分散介质中除去分散介质，并粉碎通过除去分散介质而获得的固体组分。 还提供了制造磁性粉末组合物的方法和制备磁性粉末组合物模制产品的方法。

公开(公告)号：US20250014796A1

公开(公告)日：2025-01-09

申请号：US18711269

申请日：2022-11-18

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: H01F1/44

Abstract: The present invention provides a magnetic viscous fluid comprising a magnetic particle, base oil, an inorganic cation exchanger with a siloxane bond, and silicone oil. A difference A−B between a solubility parameter A of the base oil and a solubility parameter B of the silicone oil is 1.3 (cal/cm3)1/2 or more.

公开(公告)号：US20190309143A1

公开(公告)日：2019-10-10

申请号：US16463401

申请日：2017-11-27

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: C08K3/22 ,  C08K9/04 ,  B29C35/02 ,  C08J3/09

Abstract: A resin composition including: a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium; and a resin or precursor thereof that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, a urethane skeleton, a 4- to 7-membered ring lactone skeleton, an alkyl group having from 6 to 30 carbon atoms and an alkylene group having from 6 to 30 carbon atoms, a production method thereof, a resin composition molded body obtained by using the resin composition, and a production method thereof.

公开(公告)号：US20180099445A1

公开(公告)日：2018-04-12

申请号：US15568403

申请日：2016-04-18

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: B29C45/78 ,  B29C45/72 ,  C08K3/013

CPC classification number: B29C45/78 ,  B29C45/7207 ,  B29C2045/0058 ,  B29C2045/1833 ,  B29C2793/009 ,  B29K2101/10 ,  C08K3/013 ,  C08K3/36 ,  C08K3/40 ,  C08K2003/2227 ,  C08K2003/2237 ,  C08K2003/265 ,  C08K2201/01 ,  C08L63/00

Abstract: The present invention is a method that enables continuous injection molding of a thermosetting resin composition and reuse of an unnecessary part produced during the molding. The method includes injecting a thermosetting resin composition into a mold while a curing reaction of the resin composition is incomplete. The thermosetting resin composition is then cooled in the mold until becoming semi-cured and removed as a semi-cured product from the mold. The semi-cured product is separated from the unnecessary part and separately heated to progress a thermosetting reaction of the thermosetting resin composition. The unnecessary part may be used as a reworked raw material by regrinding the unnecessary part and mixing it with a fresh thermosetting resin composition. Then, a resultant mixture is used to perform a new injection molding.

公开(公告)号：US20250011675A1

公开(公告)日：2025-01-09

申请号：US18710697

申请日：2022-11-18

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: C10M169/04 ,  C10M105/06 ,  C10M105/36 ,  C10M105/38 ,  C10M107/34 ,  C10M125/12 ,  C10M125/30 ,  C10M155/02 ,  C10M161/00 ,  C10N40/08 ,  C10N50/00

Abstract: The present invention provides a magnetic viscous fluid comprising a magnetic particle, at least one selected from ester base synthetic oil, ether base synthetic oil, and alkylnaphthalene having an alkyl group with 10 to 20 carbons, an inorganic cation exchanger with a siloxane bond, and silicone oil.

公开(公告)号：US20240327745A1

公开(公告)日：2024-10-03

申请号：US18695285

申请日：2023-11-01

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: C10M169/04 ,  C10M105/38 ,  C10M107/02 ,  C10M111/04 ,  C10M125/12 ,  C10M125/26 ,  C10M127/06 ,  C10M141/00 ,  C10M155/02 ,  C10M161/00 ,  C10N40/08 ,  C10N40/14 ,  H01F1/44

CPC classification number: C10M169/044 ,  C10M105/38 ,  C10M107/02 ,  C10M111/04 ,  C10M125/12 ,  C10M125/26 ,  C10M127/06 ,  C10M141/00 ,  C10M155/02 ,  C10M161/00 ,  H01F1/44 ,  C10M2201/064 ,  C10M2201/102 ,  C10M2203/06 ,  C10M2205/0206 ,  C10M2207/2835 ,  C10M2229/02 ,  C10N2040/08 ,  C10N2040/185

Abstract: The present invention provides a magnetic viscous fluid and a mechanical device with both improved drag force during excitation and improved rubber-resistant properties. The magnetic viscous fluid comprises a magnetic particle and base oil, wherein the base oil comprises ester base oil and non-polar base oil, and a non-polarity index of the base oil is in the range of 10 to 45.

公开(公告)号：US20170356551A1

公开(公告)日：2017-12-14

申请号：US15538882

申请日：2015-12-22

Applicant: SOMAR CORPORATION

Inventor： Hirohisa ISHIZAKI ,  Akira OCHIAI

IPC: F16J15/43 ,  F16J15/14

Abstract: An embodiment of the present invention provides a sealing member including a magnetic powder and at least one selected from the group consisting of a rubber material and a resin material, the magnetic powder being obtained by removing a dispersion medium from a magnetic fluid including magnetic particles, a dispersant and dispersion medium.