Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017200092) FERRITE MAGNET
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/200092 International Application No.: PCT/JP2017/018858
Publication Date: 23.11.2017 International Filing Date: 19.05.2017
IPC:
H01F 1/11 (2006.01) ,C01G 49/00 (2006.01) ,C04B 35/26 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1
Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01
of inorganic materials
03
characterised by their coercivity
032
of hard-magnetic materials
10
non-metallic substances, e.g. ferrites
11
in the form of particles
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
49
Compounds of iron
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
26
based on ferrites
Applicants:
TDK株式会社 TDK CORPORATION [JP/JP]; 東京都港区芝浦三丁目9番1号 3-9-1, Shibaura, Minato-ku, Tokyo 1080023, JP
Inventors:
長岡 淳一 NAGAOKA, Junnichi; JP
田口 仁 TAGUCHI, Hitoshi; JP
Agent:
前田・鈴木国際特許業務法人 MAEDA & SUZUKI; 東京都千代田区一ツ橋2丁目5番5号 岩波書店一ツ橋ビル8階 8F, Iwanami Shoten Hitotsubashi Bldg., 5-5, Hitotsubashi 2-chome, Chiyoda-ku, Tokyo 1010003, JP
Priority Data:
2016-10151920.05.2016JP
2016-10152020.05.2016JP
Title (EN) FERRITE MAGNET
(FR) AIMANT EN FERRITE
(JA) フェライト磁石
Abstract:
(EN) This ferrite magnet has a ferrite phase having a magnetoplumbite structure, and an orthoferrite phase, and is characterized in that the composition ratios of the total of each metal element A, R, Fe and Me is represented by expression (1) A1-xRx(Fe12-yMey)z, (in expression (1), A is at least one element selected from Sr, Ba, Ca and Pb; R is at least one element selected from the rare-earth elements (including Y) and Bi, and includes at least La, and Me is Co, or Co and Zn) and in that the content (m) of the orthoferrite phase is 0 < m < 28.0 in mol%. The invention makes it possible to achieve a ferrite magnet with increased Br.
(FR) Cet aimant en ferrite présente une phase de ferrite ayant une structure de magnétoplombite, et une phase d'orthoferrite, et est caractérisé en ce que les rapports de composition du total de chaque élément métallique A, R, Fe et Me sont représentés par l'expression (1) A1-xRx(Fe12-yMey)z, (dans l'expression (1), A est au moins un élément choisi parmi Sr, Ba, Ca et Pb ; R représente au moins un élément choisi parmi les éléments des terres rares (y compris Y) et Bi, et comprend au moins La, et Me est Co, ou Co et Zn) et en ce que la teneur (m) de la phase d'orthoferrite est de 0 à 28,0 % en moles. L'invention permet d'obtenir un aimant en ferrite avec davantage de Br.
(JA) マグネトプランバイト構造を有するフェライト相とオルソフェライト相とを有するフェライト磁石であって、A、R、Fe及びMeそれぞれの金属元素の総計の構成比率をA1-x(Fe12-yMeの式(1)で表され、(式(1)中、AはSr、Ba、Ca及びPbから選択される少なくとも1種の元素、Rは希土類元素(Yを含む)及びBiから選択される少なくとも1種の元素であってLaを少なくとも含み、Meは、Co、または、CoおよびZnである。)前記オルソフェライト相の含有量(m)がモル%で、0<m<28.0であることを特徴とする。本発明によれば、Brを向上させたフェライト磁石が得られる。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)