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Machine translation
1. (WO2007074580) LAMINATED COIL PART
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/074580    International Application No.:    PCT/JP2006/321884
Publication Date: 05.07.2007 International Filing Date: 01.11.2006
IPC:
H01F 17/00 (2006.01), H01F 41/04 (2006.01)
Applicants: MURATA MANUFACTURING CO., LTD. [JP/JP]; 10-1, Higashikotari 1-chome, Nagaokakyo-shi, Kyoto 6178555 (JP) (For All Designated States Except US).
IWASAKI, Tomohide [JP/JP]; (JP) (For US Only)
Inventors: IWASAKI, Tomohide; (JP)
Agent: MORISHITA, Takekazu; Sanmoto Building, 2-18, Minamihommachi 4-chome, Chuo-ku, Osaka-shi, Osaka 5410054 (JP)
Priority Data:
2005-380607 29.12.2005 JP
Title (EN) LAMINATED COIL PART
(FR) PARTIE BOBINE LAMELLÉE
(JA) 積層コイル部品
Abstract: front page image
(EN)A laminated coil part that realizes relaxing of any internal stress attributed to shrinkage of ferrite occurring at the time of firing of laminate, preventing any drop of impedance. There is provided a laminated coil part comprising laminate main part (21) of a first ferrite having coil (10) disposed in its interior and comprising laminate end parts (22) of a second ferrite formed at both end portions along the direction of coil axis (A). The first ferrite constituting the main part (21) and the second ferrite constituting the end parts (22) are different from each other in composition, and the shrinkage ratio at firing of the second ferrite is greater than that at firing of the first ferrite.
(FR)Partie bobine lamellée qui réalise la relaxation de n'importe quelle contrainte interne attribuée au retrait de ferrite se produisant au moment de la cuisson du lamellé, empêchant tout chute d'impédance. L'invention concerne une partie bobine lamellée comportant une partie principale lamellée (21) d'une première ferrite ayant une bobine (10) disposée dans son intérieur et comprenant des parties extrêmes lamellées (22) d'une deuxième ferrite formées aux deux portions extrêmes le long de la direction de l'axe de la bobine (A). La première ferrite constituant la partie principale (21) et la deuxième ferrite constituant les parties extrêmes (22) sont différentes l'une de l'autre de par leur composition, et le taux de retrait à la cuisson de la deuxième ferrite est plus grand que celui à la cuisson de la première ferrite.
(JA) 積層体の焼成時に生じるフェライトの収縮による内部応力を緩和でき、インピーダンスの低下を防止できる積層コイル部品を得る。  内部にコイル(10)が配設された第1のフェライトからなる積層体主要部(21)と、コイル軸方向Aの両端部に形成された第2のフェライトからなる積層体端部(22)とからなる積層コイル部品。主要部(21)を形成する第1のフェライトと端部(22)を形成する第2のフェライトは、その組成が異なり、かつ、第2のフェライトの焼成時の収縮率が第1のフェライトの焼成時の収縮率よりも大きい。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)