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Patent Agency Ranking
公开(公告)号：US11037711B2
公开(公告)日：2021-06-15
申请号：US16019461
申请日：2018-06-26
Inventor： Masato Maede , Toshiyuki Kojima
Abstract: Provided herein is a soft magnetic alloy powder that can exhibit a high saturation flux density and desirable soft magnetic characteristics. A dust core using such a soft magnetic alloy powder is also provided. A soft magnetic alloy powder is used that includes an amorphous phase, and an αFe crystalline phase residing in the amorphous phase. The αFe crystalline phase has a crystallite volume distribution with a mode of 1 nm or more and 15 nm or less, and with a half width of 3 nm or more and 50 nm or less.
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公开(公告)号：US11892248B2
公开(公告)日：2024-02-06
申请号：US17664664
申请日：2022-05-24
Inventor： Shozo Ochi , Masato Maede , Tomonari Nebashi , Ryo Ishikawa
IPC: F28F21/08 , B23K20/12 , H05K7/20 , B23K103/10
CPC classification number: F28F21/084 , B23K20/122 , H05K7/20927 , B23K2103/10
Abstract: A cooling unit includes a unit main body including a bottom portion, a peripheral wall portion rising from the peripheral edge of the bottom portion, and a seal for sealing an opening of the unit main body. The unit main body is joined to the seal through a plasticized region, and a void is defined in the peripheral wall portion of the unit main body.
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公开(公告)号：US11062829B2
公开(公告)日：2021-07-13
申请号：US16249807
申请日：2019-01-16
Inventor： Taishi Fujimoto , Masato Maede
IPC: B22F3/00 , H01F1/28 , H01F1/22 , B22F9/04 , B22F1/00 , C22C38/12 , C22C38/02 , B22F3/02 , C22C38/16 , H01F3/08 , H01F1/153
Abstract: A soft magnetic alloy powder includes a first pulverized powder which has a particle diameter of 20 μm or more, a value of major diameter/minor diameter of 1.2 or more and 1.8 or less, and a flat plate shape, and a second pulverized powder which has a particle diameter of less than 3 μm, a value of major diameter/minor diameter of 1.1 or more and 1.6 or less, and a flat plate shape. A production method of a soft magnetic alloy powder, includes first processing of processing a soft magnetic alloy ribbon into a coarse powder, and second processing of pulverizing the coarse powder with a pulverizer.
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4.发明授权公开(公告)号：US11270821B2
公开(公告)日：2022-03-08
申请号：US16019458
申请日：2018-06-26
Inventor： Masato Maede , Kazuto Fukuda , Toshiyuki Kojima , Mitsuo Saitoh
Abstract: A soft magnetic powder that can exhibit desirable soft magnetic characteristics. A dust core using the soft magnetic powder is also provided. The soft magnetic powder includes: a soft magnetic powder layer of an unoxidized soft magnetic material; a second oxide layer as an oxide with iron or boron residing around the soft magnetic powder layer; and a first oxide layer of an iron oxide residing around the second oxide layer. The first oxide layer and the second oxide layer reside in a region of 20 nm or more and 500 nm or less from a surface of the soft magnetic powder, and are absent in a region of more than 500 nm and 1,600 nm or less from the surface.
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公开(公告)号：US11195646B2
公开(公告)日：2021-12-07
申请号：US16016621
申请日：2018-06-24
Inventor： Toshiyuki Kojima , Masato Maede
Abstract: Provided herein is a soft magnetic alloy powder that can exhibit a high saturation flux density and desirable soft magnetic characteristics. A dust core using the soft magnetic alloy powder is also provided. The soft magnetic alloy powder is an Fe-based nanocrystalline soft magnetic alloy powder of a crystallized Fe-based amorphous soft magnetic alloy powder, and has a DSC curve with a first peak that is 15% or less of a first peak of the Fe-based amorphous soft magnetic alloy in terms of a maximum value.
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