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1. (WO2018182021) FERRITE POWDER, RESIN COMPOSITION, AND MOLDED BODY
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Pub. No.: WO/2018/182021 International Application No.: PCT/JP2018/013991
Publication Date: 04.10.2018 International Filing Date: 30.03.2018
IPC:
C01G 49/00 (2006.01) ,G11B 5/706 (2006.01) ,G11B 5/714 (2006.01) ,H01F 1/113 (2006.01)
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
49
Compounds of iron
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62
Record carriers characterised by the selection of the material
68
comprising one or more layers of magnetisable particles homogeneously mixed with a bonding agent
70
on a base layer
706
characterised by the composition of the magnetic material
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
62
Record carriers characterised by the selection of the material
68
comprising one or more layers of magnetisable particles homogeneously mixed with a bonding agent
70
on a base layer
714
characterised by the dimension of the magnetic particles
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
113
in a bonding agent
Applicants: POWDERTECH CO., LTD.[JP/JP]; 217, Toyofuta, Kashiwa-shi, Chiba 2778557, JP
Inventors: ISHII Kazutaka; JP
AGA Koji; JP
SUGIURA Takao; JP
KOJIMA Takashi; JP
Agent: KOH-EI PATENT FIRM, P.C.; Toranomon East Bldg. 9F, 7-13, Nishi-Shimbashi 1-chome, Minato-ku, Tokyo 1050003, JP
Priority Data:
2017-07320931.03.2017JP
Title (EN) FERRITE POWDER, RESIN COMPOSITION, AND MOLDED BODY
(FR) POUDRE DE FERRITE, COMPOSITION DE RÉSINE ET OBJET MOULÉ
(JA) フェライト粉末、樹脂組成物および成形体
Abstract:
(EN) The ferrite powder of the present invention is a ferrite powder containing a plurality of ferrite particles, wherein the ferrite particles each are a single crystal body having an average particle diameter of 1-2,000 nm, and have a polyhedron shape, and wherein the ferrite particles each contain 2.0-10.0 mass% of Sr, and 55.0-70.0 mass% of Fe.
(FR) La poudre de ferrite de la présente invention est une poudre de ferrite contenant une pluralité de particules de ferrite, les particules de ferrite étant chacune un corps monocristallin ayant un diamètre de particule moyen de 1 à 2 000 nm, et ayant une forme polyédrique, lesdites particules de ferrite contenant chacune de 2,0 à 10,0 % en masse de Sr, et de 55,0 à 70,0 % en masse de Fe.
(JA) 本発明のフェライト粉末は、複数個のフェライト粒子を含むフェライト粉末であって、前記フェライト粒子は、平均粒径が1nm以上2000nm以下の単結晶体で、かつ、多面体状の形状を備え、前記フェライト粒子は、Srを2.0質量%以上10.0質量%以下含有し、Feを55.0質量%以上70.0質量%以下含有する。
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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, JO, 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)