公开(公告)号：EP0541156B1

公开(公告)日：1997-04-09

申请号：EP92203306.3

申请日：1992-10-28

申请人： Philips Electronics N.V.

发明人： Johnson, Mark Thomas ,  Roozeboom, Freddy ,  Van Delden, Martinus Hermanus Wilhelmus Maria

IPC分类号： G11B5/133 ,  G11B5/193

CPC分类号： G11B5/1274 ,  G11B5/00813 ,  G11B5/02 ,  G11B5/133 ,  G11B5/193 ,  G11B5/3103

公开(公告)号：EP0614173B1

公开(公告)日：2000-05-17

申请号：EP94103058.7

申请日：1994-03-01

申请人： SONY CORPORATION

发明人： Ohmori, Hiroyuki, c/o Sony Corporation ,  Yamamoto, Tetsuya, c/o Sony Corporation ,  Sugiyama, Yasunari, c/o Sony Corporation

IPC分类号： G11B5/31 ,  G11B5/127

CPC分类号： G11B5/21 ,  G11B5/1274 ,  G11B5/17 ,  G11B5/29 ,  G11B5/531

公开(公告)号：EP0689707A1

公开(公告)日：1996-01-03

申请号：EP94911547.0

申请日：1994-03-11

申请人： DAS, Shyam C.

发明人： DAS, Shyam C.

IPC分类号： G11B5

CPC分类号： G11B5/3173 ,  G11B5/105 ,  G11B5/127 ,  G11B5/1274 ,  G11B5/1475 ,  G11B5/17 ,  G11B5/1871 ,  G11B5/21 ,  G11B5/39 ,  G11B5/3967

摘要： A metal in the gap (MIG) and thin film hybrid read/write head utilizes less magnetic material and thus possesses reduced inductance. The hybrid head is also less sensitive to throat height tolerances and better control is obtained over such geometrical parameters as gap and track. The hybrid head consists of an individual core (210), soft magnetic layer (201), non-magnetic layer (202), and C-cut (204). The hybrid head is manufactured by simplified, higher yielding techniques in a batch process.

公开(公告)号：EP0614173A2

公开(公告)日：1994-09-07

申请号：EP94103058.7

申请日：1994-03-01

申请人： SONY CORPORATION

发明人： Ohmori, Hiroyuki, c/o Sony Corporation ,  Yamamoto, Tetsuya, c/o Sony Corporation ,  Sugiyama, Yasunari, c/o Sony Corporation

IPC分类号： G11B5/31 ,  G11B5/127

CPC分类号： G11B5/21 ,  G11B5/1274 ,  G11B5/17 ,  G11B5/29 ,  G11B5/531

摘要： A magnetic head is disclosed in which a pair of magnetic core halves, each having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, are abutted to each other for defining a magnetic gap (18) between the magnetic metal films, wherein a recess (10) for forming a coil (13) is formed in an abutting surface of at least one of the magnetic core halves and the coil (13) formed by a thin film forming technique is arranged within the recess (10). A multi-channel magnetic head is also disclosed which includes a plurality of magnetic heads having different azimuth angles of the magnetic gaps, wherein each magnetic head is formed by abutting a pair of magnetic core halves to each other, each of the magnetic core halves having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, for defining a magnetic gap between the magnetic metal films, and wherein a recess for forming a coil is formed in the abutting surface of at least one of the magnetic core halves, and the coil is formed in the recess by thin film forming technique. The methods for producing the magnetic head and the multi-channel magnetic head are also disclosed.

公开(公告)号：EP1065679A2

公开(公告)日：2001-01-03

申请号：EP00113565.6

申请日：2000-06-27

申请人： SONY CORPORATION

发明人： Inoue, Yoshihiko ,  Honda, Junichi ,  Tokutake, Fusashige ,  Suzuki, Atsushi

IPC分类号： H01F10/12 ,  G11B5/127 ,  G11B5/187

CPC分类号： H01F10/131 ,  G11B5/1274 ,  G11B5/1878

摘要： A soft magnetic thin film excellent in a high saturation magnetic flux density, soft magnetic characteristics and corrosion resistance. The soft magnetic thin film is made of a material expressed by a composition formula Fe a Si b Ta c Ru d Ga e N f (where each of a, b, c, d, e and f is a value indicating the atom% of the corresponding element), wherein the composition ranges are as follows:

62 atom%
7 atom%
3 atom%
0 atom% ≤ d
0 atom% ≤ e
5 atom%
b + c > 13 atom%.

摘要翻译： 高饱和磁通密度，软磁特性和耐腐蚀性优良的软磁薄膜。 软磁性薄膜由组成式FeaSibTacRudGaeNf（其中a，b，c，d，e和f中的每一个是表示相应元素的原子％的值）表示的材料制成，其中组成范围为 以下：62原子％ 13原子％。

公开(公告)号：EP0602567B1

公开(公告)日：1998-03-11

申请号：EP93119981.4

申请日：1993-12-10

申请人： SONY CORPORATION

发明人： Saito, Tadashi ,  Takahashi, Shinji ,  Watanabe, Toshinobu

IPC分类号： G11B5/127 ,  G11B5/133 ,  G11B5/235 ,  G11B5/147

CPC分类号： G11B5/1875 ,  G11B5/1274 ,  Y10T428/1193

公开(公告)号：EP0650628A1

公开(公告)日：1995-05-03

申请号：EP93917210.0

申请日：1993-07-16

申请人： AMPEX SYSTEMS CORPORATION

发明人： GOOCH, Beverley, R. ,  NIEDERMEYER, Rex

IPC分类号： G11B5

CPC分类号： G11B5/10 ,  G11B5/1272 ,  G11B5/1274 ,  G11B5/1276 ,  G11B5/17 ,  G11B5/232 ,  G11B5/235 ,  G11B5/255 ,  Y10T29/49043

摘要： A magnetic transducer (10) formed as a composite of three different materials for reproducing and/or recording signals with a magnetic medium, the transducer including first and second generally identical sections (12, 12'), which, when bonded together in opposing relation, form a transducer having aligned recesses (13, 13') in the outer edges and a formed winding window opening (19, 19') adjacent the pole tips, the window being arranged for receiving coil turns therethrough for providing the coil (32) on a line generally parallel to the tape contact surface of the transducer (10), the core legs (18, 18') being formed of two strips of Alfesil material, or the like, deposited or sputtered on the substrate. Each core section (12, 12') is formed as a portion of an elongate ferrite block substrate (20) with a thin cap of non-magnetic material (16, 16'), initially shaped to provide opposing elongate bonding notches (26, 28) on opposite edges of a common surface (22), and an intermediate winding groove (19b) in proximate relation to one of the notches. The winding groove preferably protrudes into the non-magnetic material to about half its depth. Thereafter the workpiece is provided with an array or a plurality of equally spaced V-shaped track width defining grooves (40a-40j) oriented in a direction perpendicular to the winding groove (19b), with the grooves defining pole edges having tapered side surfaces. A chrome adhesion layer is deposited on the grooved surface and into the winding groove, followed by a core layer of suitable magnetic material, such as Alfesil material which provides a pole material covering the edges as well as the tapered side surfaces. A chrome adhesion layer is applied to the Alfesil layer, followed by a gap layer of insulating material. Two of such workpieces (20, 20') are then placed with the edges in facing opposing aligned abutting relation and glass bonding is effected by means of the two bonding notches (26, 28).

公开(公告)号：EP0614173A3

公开(公告)日：1995-01-11

申请号：EP94103058.7

申请日：1994-03-01

申请人： SONY CORPORATION

发明人： Ohmori, Hiroyuki, c/o Sony Corporation ,  Yamamoto, Tetsuya, c/o Sony Corporation ,  Sugiyama, Yasunari, c/o Sony Corporation

IPC分类号： G11B5/31 ,  G11B5/127

CPC分类号： G11B5/21 ,  G11B5/1274 ,  G11B5/17 ,  G11B5/29 ,  G11B5/531

摘要： A magnetic head is disclosed in which a pair of magnetic core halves, each having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, are abutted to each other for defining a magnetic gap (18) between the magnetic metal films, wherein a recess (10) for forming a coil (13) is formed in an abutting surface of at least one of the magnetic core halves and the coil (13) formed by a thin film forming technique is arranged within the recess (10). A multi-channel magnetic head is also disclosed which includes a plurality of magnetic heads having different azimuth angles of the magnetic gaps, wherein each magnetic head is formed by abutting a pair of magnetic core halves to each other, each of the magnetic core halves having a magnetic metal film formed in the vicinity of at least a substrate surface facing a magnetic recording medium, for defining a magnetic gap between the magnetic metal films, and wherein a recess for forming a coil is formed in the abutting surface of at least one of the magnetic core halves, and the coil is formed in the recess by thin film forming technique. The methods for producing the magnetic head and the multi-channel magnetic head are also disclosed.

摘要翻译： 公开了一种磁头，其中在磁性记录介质的至少基板表面附近形成有磁性金属膜的一对磁芯半体彼此抵接，以在磁性金属 膜，其中在所述凹部内布置有用于形成线圈的凹部，所述凹部形成在至少一个所述磁芯半部和通过薄膜形成技术形成的所述线圈的邻接表面中。 还公开了一种多通道磁头，其包括具有磁隙的不同方位角的多个磁头，其中每个磁头通过将一对磁芯半体彼此邻接而形成，每个磁芯半部具有 形成在至少面对磁记录介质的基板表面附近的磁性金属膜，用于限定磁性金属膜之间的磁隙，并且其中用于形成线圈的凹部形成在至少一个 磁芯半部，并且通过薄膜形成技术在凹部中形成线圈。 还公开了用于制造磁头和多通道磁头的方法。

公开(公告)号：EP1065679A3

公开(公告)日：2001-05-16

申请号：EP00113565.6

申请日：2000-06-27

申请人： SONY CORPORATION

发明人： Inoue, Yoshihiko ,  Honda, Junichi ,  Tokutake, Fusashige ,  Suzuki, Atsushi

IPC分类号： H01F10/12 ,  G11B5/127 ,  G11B5/187

CPC分类号： H01F10/131 ,  G11B5/1274 ,  G11B5/1878

摘要： A soft magnetic thin film excellent in a high saturation magnetic flux density, soft magnetic characteristics and corrosion resistance. The soft magnetic thin film is made of a material expressed by a composition formula Fe a Si b Ta c Ru d Ga e N f (where each of a, b, c, d, e and f is a value indicating the atom% of the corresponding element), wherein the composition ranges are as follows: 62 atom% 7 atom% 3 atom% 0 atom% ≤ d 0 atom% ≤ e 5 atom% b + c > 13 atom%.

公开(公告)号：EP0650628B1

公开(公告)日：1997-09-24

申请号：EP93917210.2

申请日：1993-07-16

申请人： AMPEX SYSTEMS CORPORATION

发明人： GOOCH, Beverley, R. ,  NIEDERMEYER, Rex

IPC分类号： G11B5/255 ,  G11B5/127 ,  G11B5/17

CPC分类号： G11B5/10 ,  G11B5/1272 ,  G11B5/1274 ,  G11B5/1276 ,  G11B5/17 ,  G11B5/232 ,  G11B5/235 ,  G11B5/255 ,  Y10T29/49043

摘要： A magnetic transducer (10) formed as a composite of three different materials for reproducing and/or recording signals with a magnetic medium, the transducer including first and second generally identical sections (12, 12'), which, when bonded together in opposing relation, form a transducer having aligned recesses (13, 13') in the outer edges and a formed winding window opening (19, 19') adjacent the pole tips, the window being arranged for receiving coil turns therethrough for providing the coil (32) on a line generally parallel to the tape contact surface of the transducer (10), the core legs (18, 18') being formed of two strips of Alfesil material, or the like, deposited or sputtered on the substrate. Each core section (12, 12') is formed as a portion of an elongate ferrite block substrate (20) with a thin cap of non-magnetic material (16, 16'), initially shaped to provide opposing elongate bonding notches (26, 28) on opposite edges of a common surface (22), and an intermediate winding groove (19b) in proximate relation to one of the notches. The winding groove preferably protrudes into the non-magnetic material to about half its depth. Thereafter the workpiece is provided with an array or a plurality of equally spaced V-shaped track width defining grooves (40a-40j) oriented in a direction perpendicular to the winding groove (19b), with the grooves defining pole edges having tapered side surfaces. A chrome adhesion layer is deposited on the grooved surface and into the winding groove, followed by a core layer of suitable magnetic material, such as Alfesil material which provides a pole material covering the edges as well as the tapered side surfaces. A chrome adhesion layer is applied to the Alfesil layer, followed by a gap layer of insulating material. Two of such workpieces (20, 20') are then placed with the edges in facing opposing aligned abutting relation and glass bonding is effected by means of the two bonding notches (26, 28).