-
公开(公告)号：JP2536535B2
公开(公告)日：1996-09-18
申请号：JP19163287
申请日：1987-07-31
Applicant: SONY CORP
Inventor： MISHIMA AKIO , HAYAKAWA ATSUNORI
-
公开(公告)号：JPH0666188B2
公开(公告)日：1994-08-24
申请号：JP23497185
申请日：1985-10-21
Applicant: SONY CORP
Inventor： TSURUOKA MAKOTO , TAKINO HIROSHI , KAWABATA KAZUKO , HAYAKAWA ATSUNORI
-
公开(公告)号：JPS63271757A
公开(公告)日：1988-11-09
申请号：JP10481187
申请日：1987-04-30
Applicant: SONY CORP
Inventor： HAYAKAWA ATSUNORI , MISHIMA AKIO
IPC: G11B17/34
Abstract: PURPOSE:To improve the contact stability and travelling performance with a disk by symmetrically arranging slider parts in plural couples with the specified line intersecting at right angles with the radial direction of the disk as a symmetrical axis, and reducing the area of the tip face of a main magnetic pole part more than the area of a slider part. CONSTITUTION:Two couples of slider parts 13A1, 13A2, 13B1, 13B2 are provided at a linear symmetrical position on the opposing face of a magnetic head part 11 with the center line (a) of this opposing face as the axis and the center line (a) is set so as to be coincident with the direction orthogonal with the radial direction of the disk. The main magnetic pole part 116 smaller than the area of the tip face of the slider parts 13A1, 13A2, 13B1, 13B2 is also formed independently on the opposing face. The adhesion is thus increased with uniform contact and the travelling performance of the disk is improved.
-
公开(公告)号：JPS6224412A
公开(公告)日：1987-02-02
申请号：JP16485085
申请日：1985-07-25
Applicant: SONY CORP
Inventor： HAYAKAWA ATSUNORI
Abstract: PURPOSE:To reduce the influence of an external magnetic noise by forming a slider with a magnetic material. CONSTITUTION:In terms of a single magnetic pole type magnetic head device having the sliders 12a and 12b and a single magnetic pole magnetic head element 1 with some part of a main magnetic pole 3 faced the magnetic recording slider sliding faces S of the sliders 12a and 12b, said sliders 12a and 12b are formed from the magnetic material. Thus, the single magnetic pole magnetic head element 1 can be shielded from an external floating magnetic field, and the influence of the external magnetic noise can be reduced. The sliders 12a and 12b form a return path part becoming the return path of the magnetic flux of a recording and reproducing main magnetic pole 3, whereby the recording and reproducing sensitivity can be improved.
-
公开(公告)号：JPS60170007A
公开(公告)日：1985-09-03
申请号：JP2474284
申请日：1984-02-13
Applicant: SONY CORP
Inventor： HAYAKAWA ATSUNORI
Abstract: PURPOSE:To obtain reproduction signals of high quality without deteriorating the S/N by setting the film thickness of a main magnetic pole of a recording single magnetic pole head at a level near the specific value and reducing the noise level of the crosstalk signal due to the magnetic flux which is flowed from a recording main magnetic pole in a reproduction mode. CONSTITUTION:A vertical recording single magnetic pole head is combied with a reproducing single magnetic pole head to obtain a composite multi-channel magnetic head. A magnetic recording/reproducing device uses said composite head to record and reproduce digital signals to a vertical recording medium. Here the magnetization inverting width is set T for the digital signal which performs the magnetic recording/reproduction, and the maximum one of Ts which satisfies T=i.Ts (i: a natural number), i.e., the waveform formed on the recording medium is defined as Ts max. Under such conditions, the film thickness Tw of the main magnetic pole of the recording single magnetic pole head is decided as Tw=2.m.Ts max/alpha, here (m) shows a natural number and alpha is a constant which is decided as alpha=f(a/Tm) from the distance (a) between the film thickness Tm of the main magnetic pole and a layer of high permeability.
-
Patent Agency Ranking
公开(公告)号：JPS60160014A
公开(公告)日：1985-08-21
申请号：JP1546784
申请日：1984-01-31
Applicant: SONY CORP
Inventor： HAYAKAWA ATSUNORI
Abstract: PURPOSE:To enable satisfactory reproduction even if a track width is narrow by unitizing a magneto-resistance effect element to a magnetic head of a main magnetic pole excitation type and performing reproduction by using the magneto-resistance effect element in the stage of reproduction. CONSTITUTION:A vertical recording and reproducing magnetic head is formed by coupling magnetically a main magnetic pole 1 extending at one end to the surface to be slided with a magnetic recording medium and a magneto-resistance effect element 8 consisting of a thin magneto-resistance effect film via a magnetic sensitive part consisting of a magneto-resistance effect element 8. Said head is provided with a magnetic material part 4 coupled magnetically to the oppsite side of the pole 1 via the element 8 and a winding 6 for exciting the pole 1. Safisfactory reproduction is thus made possible even if the relative speed of the pole 1 and a magnetic recording medium 7 is small and the track is narrow.
-
公开(公告)号：JPS60119610A
公开(公告)日：1985-06-27
申请号：JP22815883
申请日：1983-12-02
Applicant: SONY CORP
Inventor： HAYAKAWA ATSUNORI
Abstract: PURPOSE:To lower winding impedance per the same winding and to improve recording and reproducing sensitivity by winding coils around a main magnetic pole and the first and second nonmagnetic bodies without providing an auxiliary magnetic pole. CONSTITUTION:The main magnetic pole 2 is held between base plates 4a and 5a of the main magnetic pole of nonmagnetic guard materials 4, 5. The end part 2a which is in contact with a magnetic recording medium of the main magnetic pole 2 is formed thinner than the thickness of winding 2b by specified thickness. For instance, the thickness of a part 5mum from the contact face of the magnetic recording medium of the main magnetic pole 2 is made to 0.3mum, and the thickness of a part behind it is made to 4mum. A pad material 15 is made of a nonmagnetic material, and a protecting film 16 is made of an insulating film of SiO2, etc. Desirably, the nonmagnetic material 17 is compact and hard having a coefficient of thermal expansion rear to the magnetic material part 6. A notched part 20 is provided to bring a winding 14 as close as possible to contact face side. Other parts are constituted similarly to a conventional single magnetic pole type magnetic head for vertical recording.
-
公开(公告)号：JPS59191119A
公开(公告)日：1984-10-30
申请号：JP6620683
申请日：1983-04-14
Applicant: Sony Corp
Inventor： HAYAKAWA ATSUNORI
CPC classification number: G11B5/1278
Abstract: PURPOSE:To obtain a combined magnetic head after vertical recording method corresponding to tunnel erasing system and perform excellent magnetic recording and reproducing, by providing a main magnetic pole which is made of a soft magnetic film and has a prescribed width corresponding to a magnetic recording medium at one end, and a pair of main magnetic poles for erasing which are formed in one body with a nonmagnetic material in between, arranged so as to erase both end parts of a record recorded by the above mentioned main magnetic pole, and made of a soft magnetic film. CONSTITUTION:A main magnetic pole 2a for recording and reproducing which has a prescribed width corresponding to a magnetic recording medium 1 at one end, is formed from a film of a soft magnetic material, such as ''Permalloy'', ''Sendust'', magnetic amorphous, etc. Vertical recording is made on the magnetic recording medium 1 by exciting an auxiliary magnetic pole 3 and the main magnetic pole 2a for recording and reproducing with an electric current flowing to the exciting coil 4 of the auxiliary magnetic pole 3 arranged at a location facing to the main magnetic pole 2a through the magnetic recording medium 1. Moreover, an auxiliary core 8 for the main magnetic pole 2a is formed from a magnetic material and installed to the rear of a nonmagnetic guarding material 9 made of, for example, ceramic. In the diagram, 10 is a spacer made of a nonmagnetic, for example, ceramic, 11 is a glass layer which flattens the right side (of the diagram) surface of the main magnetic pole 2a and, at the same time, contacts with the nonmagnetic spacer 10 as far as a prescribed extent, and 12 is a nonmagnetic material section.
Abstract translation: 目的：为了获得与隧道擦除系统相对应的垂直记录方法之后的组合磁头，并且通过提供由软磁膜制成并具有对应于磁记录介质的规定宽度的主磁极，并且执行优异的磁记录和再现 在一端形成一对主磁极，用于擦除一个主体中的非磁性材料，其间被布置成擦除由上述主磁极记录的记录的两个端部，并由 软磁膜。 构成：用于记录和再现的主磁极2a由软磁性材料膜（例如“坡莫合金”，“Sendust”）形成，该主磁极2a的一端具有与磁记录介质1相对应的规定宽度， '，磁性无定形等。通过激励辅助磁极3和用于记录和再现的主磁极2a在磁记录介质1上进行垂直记录，其中流过辅助磁极3的励磁线圈4的电流 通过磁记录介质1布置在面对主磁极2a的位置。此外，用于主磁极2a的辅助芯8由磁性材料形成并安装在由非磁性保护材料9制成的非磁性保护材料9的后部， 例如陶瓷。 在图中，10是由非磁性的例如陶瓷制成的间隔件，11是使主磁极2a的（图示）的右侧平坦化的玻璃层，并且同时与 非磁性衬垫10达到规定的程度，12是非磁性材料部分。
-
公开(公告)号：JPS59177719A
公开(公告)日：1984-10-08
申请号：JP5215783
申请日：1983-03-28
Applicant: Sony Corp
Inventor： HAYAKAWA ATSUNORI , MISHIMA AKIO
CPC classification number: G11B5/1278
Abstract: PURPOSE:To shorten the interval between a recording/reproducing main magnetic pole and a tunnel erasing main magnetic pole without losing superior electromagnetic conversion characteristics by joining an auxiliary magnetic pole part magnetically with tunnel erasing main magnetic poles and forming a curved magnetic path from the main magnetic poles to the downstream side of a magnetic recording medium to secure a winding space. CONSTITUTION:The width of the travelling direction of the magnetic recording medium on a nonmagnetic body 21 is made narrow as compared to the ordinary one. Therefore, the interval (b) between the recording/reproducing main magnetic pole 1 and the tunnel erasing main magnetic poles arranged on both the sides of the nonmagnetic body 21 is made narrow as compared to a proposed example (a). The auxiliary magnetic pole part 9b' is magnetically joined with the tunnel erasing main magnetic poles 9a, 9b at a position backed from a surface on which the magnetic recording medium is travelled to form the curved magnetic path from the erasing main magnetic poles to the downstream side of the travelling magnetic recording medium. Said constitution makes it possible to secure the winding space of tunnel erasing winding 11 main if the interval between the recording/reproducing main magnetic pole 1 and the tunnel erasing main magnetic poles 9a, 9b is narrowed.
Abstract translation: 目的：为了缩短记录/再现主磁极与通道擦除主磁极之间的间隔，而不会通过磁辅助磁极部分与隧道擦除主磁极接合而形成弯曲的磁路，而不损失优异的电磁转换特性 磁极到磁记录介质的下游侧以确保卷绕空间。 构成：与非磁性体21相比，非磁性体21上的磁记录介质的行进方向的宽度变窄。 因此，与提出的实施例（a）相比，记录/再现主磁极1和布置在非磁性体21两侧的隧道之间的间隔（b）变窄。 辅助磁极部分9b'与隧道擦除主磁极9a，9b在从磁记录介质行进的表面背后的位置处磁性地接合，以形成从擦除主磁极到下游的弯曲磁路 行进的磁记录介质的一侧。 如果记录/再现主磁极1和消除主磁极9a，9b的隧道之间的间隔变窄，则可以确保隧道擦除绕组11的主绕组空间。
-
公开(公告)号：JPS59146434A
公开(公告)日：1984-08-22
申请号：JP2118183
申请日：1983-02-10
Applicant: Sony Corp
Inventor： HAYAKAWA ATSUNORI
IPC: G11B5/127
CPC classification number: G11B5/1278
Abstract: PURPOSE:To mass produce vertical recording type magnetic heads having high record/reproduction efficiency in a simple manufacturing process by unifying main magnetic poles 22 made of soft magnetic thin film layers by holding a guared material block from both sides with a protecting film adhered to a single side surface. CONSTITUTION:Projections 32a for formation of auxiliary magnetic poles having trapezoidal sections and planar tops are formed on a magnetic block 32 with prescribed spaces. Then nonmagnetic plate type blocks 31 are joined to each other with their mirror polished surfaces 31a and grooves 33 set opposite to each other. A joined matter 35 of the blocks 31 and 32 is cut out to a desired thickness along the faces shown by chain by lines m1, m2-. A main surface 36a is finished into a mirror surface. In this case, the thickness of an auxiliary magnetic pole part 27 is set at about a/bapprox.=1-1.5 at a place near the tip of a main magnetic pole 22. This pole 22 is formed on the surface 36a of an obtained composite plate matter 36, and an insulated protecting film 38 is coated on the pole 22 by sputtering, vapor desposition, ion plating and other processes. Then a composite plate matter 36' which serves as a guard material block 24' is adhered from the side of the film 38.
Abstract translation: 目的：在简单的制造过程中通过将由软磁性薄膜层构成的主磁极22组合在一起，通过从两侧保持一个保护材料块而将粘合到一个保护膜上的保护膜大量地生产出具有高记录/再现效率的垂直记录型磁头 单面表面。 构成：用于形成具有梯形部分和平面顶部的辅助磁极的突起32a形成在具有规定空间的磁块32上。 然后，非磁性板型块31彼此接合，镜面抛光表面31a和凹槽33彼此相对设置。 块31和32的连接件35沿着链m1，m2-所示的面被切割成期望的厚度。 主表面36a被精加工成镜面。 在这种情况下，辅助磁极部27的厚度在主磁极22的尖端附近的位置处设定为大约a / b。= 1-1.5。该极22形成在所获得的 复合板36和绝缘保护膜38通过溅射，蒸汽沉积，离子电镀等工序涂覆在极22上。 然后，从膜38的侧面粘贴起保护材料块24'的复合板状物36'。
-
-
-
-
-
-
-
-
-
Search Results
70
records
(took 0.024 seconds)
