Patent SG-11201408003U-A (SG)
Title: Perpendicular magnetic recording medium
Inventor: UCHIDA SHINJI
IPC: G11B5/64
Filed: 2013-12-06
Abstract: (i2) mwu ft iz s-5 iv x m £ titz s issaj n d9) mm IHMMi _ r4T» SI^HIB 2014^6^12 0(12.06.2014) w , PO tpCT (10) WO 2014/087672 A1 G1 IB 5/65 (2006.01) PCT/JP2013/007213 2013 ^ 12 M 6 0(06.12.2013) (51) G1 IB 5/66 (2006.01) G1 IB 5/64 (2006.01) (21) (22) (25) (26) @(8&M©Wl§: (30) fiBfcftf '— 1 £: 2012-267588 2012 ^ 12 ^ 6 0(06.12.2012) JP (71) ttiJiA: a±B^^5Cs1±(FUJI ELECTRIC CO., LTD.) [JP/JP]; T 2109530 !ft Jl| llgfrfT Jl| llgflZ H HfifEEl 1 § 1 ^ Kanagawa (JP). (72) l^ea *;p(UCHII)A, Shinji); T2 109530 ^ ^jii»jii^mjn^EBaaiTBa 1 # 1 ^s±m«i ^ TC 35 tt 1^3 Kanagawa (JP). Jn |tt| JS (KATAOKA, Hiroyasu); T2109530 Jl| RJl| llgf rfT jii^EeaaifBa 1 # 1 Kanagawa (JP). M /'¥ A (KIKUCHI, Hiroto); T 2109530 w^jniftjiiiiismjiiiiiSEBaaiTBa 1 # 1 ^ il it II tit 1$: it l^-l Kanagawa (JP). \"3\" EH A! (FURUTA, Akira); T2109530 Jl| RJl|llgf rfTJl|llgf E a a §T a 1 #1 ^ S ± m aitt a £ *t rt Kanagawa (JP). £hM ! St C (SHIVIATSU, Takehito); T 9808577 fill \"• rfT Wit E —T @ 1 # 1 A^l^l Miyagi(JP). (74) i-tmx-. ^stus^A « • (TANI & ABE, P.C.); T 1070052 2 TI6-20 Tokyo (JP). (8i) (^ro&i^psy > IS ft nj f b): 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, 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, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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. (84) *!£H (asrofci^isy > ±T(Dmm(Dfcm% V&tf nlfb): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), n. — V 7 (AM, AZ, BY, KG, KZ, RU, TJ, TM), 3 — • V / ^ (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, [mn%] (54) Title: PERPENDICULAR MAGNETIC RECORDING MEDIUM (54) fg (57) Abstract: The present invention provides a perpendicular magnetic recording medium that includes at least a non-magnetic substrate and a magnetic recording layer, wherein the magnetic recording layer includes a plurality of layers including at least a first magnetic recording layer and second magnetic recording layer; the first magnetic recording layer has a granular structure that in - eludes first magnetic crystal grains and a first non-magnetic crystal grain field that encloses the first magnetic crystal grains; the first fS magnetic crystal grain contains an ordered alloy; the first non-magnetic crystal grain field is made of carbon; the second magnetic re - ^ cording layer has a granular structure that includes second magnetic crystal grains and a second non-magnetic crystal grain field that ^ encloses the second magnetic crystal grains; the second magnetic crystal grains contain an ordered alloy; and the second non-mag- 00 netic crystal grain field is made of a carbon-containing non-magnetic material. § (57)H[$J: < <t U •> HU IB {SHI IB 'Pfe < <t ^ % 1 JktfiWi 2 SM^iBftJB ft £> U > sulfite 1 o nBUIBIM r* u flufBin mtm 1 b#y> mtmzmmm n Jiii. ^2 -stco-efe-lio WO 2014/087672 A11 lllll llllllll II llllll lllll III III llll III III lllll lllll lllll llll lllll lllll lllllll llll llll llll GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). - (&&£ 21 &(3)) — iSCOfBH 19^(1))