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1. (WO2018088050) METHOD FOR PRODUCING MAGNETIC POWDER AND METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM
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Pub. No.: WO/2018/088050 International Application No.: PCT/JP2017/034973
Publication Date: 17.05.2018 International Filing Date: 27.09.2017
IPC:
G11B 5/84 (2006.01) ,G11B 5/706 (2006.01) ,G11B 5/714 (2006.01) ,H01F 1/11 (2006.01)
[IPC code unknown for G11B 5/84][IPC code unknown for G11B 5/706][IPC code unknown for G11B 5/714][IPC code unknown for H01F 1/11]
Applicants:
ソニー株式会社 SONY CORPORATION [JP/JP]; 東京都港区港南1丁目7番1号 1-7-1, Konan, Minato-ku, Tokyo 1080075, JP
Inventors:
村松 淳司 MURAMATSU, Atsushi; JP
中谷 昌史 NAKAYA, Masafumi; JP
寺川 潤 TERAKAWA, Masaru; JP
阿部 悟 ABE, Satoru; JP
豊沢 奈津貴 TOYOSAWA, Natsuki; JP
前嶋 克紀 MAESHIMA, Katsunori; JP
Agent:
杉浦 正知 SUGIURA, Masatomo; JP
杉浦 拓真 SUGIURA, Takuma; JP
Priority Data:
2016-22099911.11.2016JP
Title (EN) METHOD FOR PRODUCING MAGNETIC POWDER AND METHOD FOR PRODUCING MAGNETIC RECORDING MEDIUM
(FR) PROCÉDÉ DE PRODUCTION DE POUDRE MAGNÉTIQUE ET PROCÉDÉ DE PRODUCTION DE SUPPORT D'ENREGISTREMENT MAGNÉTIQUE
(JA) 磁性粉末の製造方法、および磁気記録媒体の製造方法
Abstract:
(EN) This method for producing a magnetic powder comprises a process for producing second particles that contain ε-iron oxide by subjecting first particles that contain triiron tetraoxide to a heat treatment.
(FR) L'invention concerne un procédé de production d'une poudre magnétique comprenant un procédé de production de secondes particules qui contiennent de l'oxyde de fer epsilon par soumission de premières particules qui contiennent du tétraoxyde de trifer à un traitement thermique.
(JA) 磁性粉末の製造方法は、四酸化三鉄を含む第1粒子を熱処理することにより、ε酸化鉄を含む第2粒子を作製することを含む。
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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)