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1. 发明专利

JPH0359483B2 失效
公开(公告)号：JPH0359483B2
公开(公告)日：1991-09-10
申请号：JP15391181
申请日：1981-09-30
申请人： PIONEER ELECTRONIC CORP
发明人： SATO KAZUHIKO , MYAGUCHI SATOSHI , YASUDA SHINJI
IPC分类号： G11B5/17 , G11B5/127 , G11B5/133 , G11B5/23

2. 发明专利

JPH0234086B2 失效
公开(公告)号：JPH0234086B2
公开(公告)日：1990-08-01
申请号：JP19900482
申请日：1982-11-15
申请人： PIONEER ELECTRONIC CORP
发明人： KOMATSUBARA MASAKI , YASUDA SHINJI , MASUMOTO MASARU , SATO KAZUHIKO
IPC分类号： G11B5/10 , G11B5/127 , G11B5/40 , G11B5/49 , G11B15/60

3. 发明专利

JPS624765B2 失效
公开(公告)号：JPS624765B2
公开(公告)日：1987-01-31
申请号：JP10906680
申请日：1980-08-08
申请人： PIONEER ELECTRONIC CORP
发明人： YASUDA SHINJI , SHIMODA KOSHI
IPC分类号： G11B5/027 , G11B5/008 , G11B5/02

4. 发明专利

JPS59160813A Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：JPS59160813A
公开(公告)日：1984-09-11
申请号：JP3290583
申请日：1983-03-02
申请人： Pioneer Electronic Corp
发明人： YASUDA SHINJI
IPC分类号： G11B5/31 , G11B5/48
CPC分类号： G11B5/488
摘要： PURPOSE:To perform tracking servocontrol easily even during recording by forming a magnetic head element which obtains a tracking signal from an adjacent track after recording on the downstream side of an objective track of recording on the same substrate with a recording head. CONSTITUTION:The magnetic head element which picks up the tracking servocontrol signal from the track which is already recorded by >=1 turn before on the downstream side of the track to be recorded during recording is formed on the same substrate with the head element for recording. The recording head element is an induction type element. The magnetic head element for detecting the tracking servo-control signal is preferably a magneto-effect type element. Thus, the recording head 2 and resistance effect magnetic head 3 for detecting the tracking servocontrol signal are formed on the same substrate 1. A protection substrate 4 is provided on top surfaces of the recording head 2 and magnetic head 3 provided on the substrate 1. In this case, the recording head 2 is formed after the thick magneto-resistance effect element MR is formed.
摘要翻译：目的：即使在记录过程中，也可以通过形成一个磁头元件来执行跟踪伺服控制，该磁头元件在用记录头记录在同一基板上的记录目标轨道的下游侧之后从邻近的轨道获得跟踪信号。构成：在记录期间要记录的轨道的下游侧已经记录了> = 1圈已经记录的跟踪伺服控制信号的磁头元件与记录头元件形成在同一基板上。记录头元件是感应型元件。用于检测跟踪伺服控制信号的磁头元件优选是磁效应元件。因此，用于检测跟踪伺服控制信号的记录头2和电阻效应磁头3形成在同一基板1上。保护基板4设置在设置在基板1上的记录头2和磁头3的顶表面上。在这种情况下，在形成厚磁阻效应元件MR之后形成记录头2。

5. 发明专利

JPS59131298A Moving coil type cartridge 失效
标题翻译：移动线圈类型盒
公开(公告)号：JPS59131298A
公开(公告)日：1984-07-28
申请号：JP24915083
申请日：1983-12-26
申请人： Pioneer Electronic Corp
发明人： OOKURA KENICHI , YASUDA SHINJI
IPC分类号： H04R9/12 , H04R9/16
CPC分类号： H04R9/16
摘要： PURPOSE:To improve the power generating efficiency, to simplify the assembling and to attain stylus replacement by generating a magnetic field with a magnetic pair and placing eccentrically a coil off the center axis of a cuntilever. CONSTITUTION:Since a magnetizing line of magnets 11a, 11b and a center axis of a core 12a are parallel when the cuntilever 2 is not vibrated, the magnetic flux enters coil 8a at a right angle, and goes through the center of the core 12a toward both ends and reaches the S pole of the magnets 11a, 11b from both ends of the magnetic core. No current flows to the coil 8a in this case. When the cuntilever 2 moves upward, since the magnetic gap between the magnets 11a, 11b and the left end of the magnetic core 12a is smaller, a current in response to the change in magnetic flux flows to the coil 8a. Higher magnetic flux is realized by bringing the magnets 11a, 11b close together, and the power generating efficiency is increased. Since the vibrating system and the magnetic system are separated. The MC stereo catridge capable of replacing the stylus is offered.
摘要翻译：目的：为了提高发电效率，通过产生具有磁性对的磁场并将线圈偏离摆线的中心轴来简化组装和获得触笔更换。构成：由于磁铁11a，11b的磁化线和磁芯12a的中心轴在平台2不振动的情况下平行，所以磁通量以直角进入线圈8a，并且通过磁芯12a的中心朝向两端从磁芯的两端到达磁铁11a，11b的S极。在这种情况下，没有电流流向线圈8a。当c ver 2向上移动时，由于磁体11a，11b与磁芯12a的左端之间的磁隙较小，所以响应于磁通量变化的电流流向线圈8a。通过使磁体11a，11b靠近在一起来实现更高的磁通量，并且发电效率提高。由于振动系统和磁力系统分离。提供了能够更换触控笔的MC立体声卡。

6. 发明专利

JPS58141413A THIN MAGNETIC HEAD AND ITS PRODUCTION 失效
公开(公告)号：JPS58141413A
公开(公告)日：1983-08-22
申请号：JP2278882
申请日：1982-02-17
申请人： PIONEER ELECTRONIC CORP
发明人： YASUDA SHINJI , SATOU KAZUHIKO
IPC分类号： G11B5/127 , G11B5/23 , G11B5/31
摘要： PURPOSE:To obtain a high-efficiency thin magnetic head, by reducing the crosstalk and increasing easily the number of windings. CONSTITUTION:A thin lower magnetic pole constituting piece 2 and a thin upper magnetic pole constituting piece 3 are attached onto one substrate 1, and gap forming layers 2A1 and 3A1 consisting of an SiO2, an Al2O3, or the like are formed on overlap parts 2A and 3A by vapor-deposition, sputtering, or the like. One ends of coils 5 and 6 are inserted to a winding window 4 provided in the lower magnetic pole constituting piece 2 and the upper magnetic pole constituting piece 3, and coils 5 and 6 are wound around the lower magnetic pole constituting piece 2 and the upper magnetic pole constituting piece 3. Overlap parts 2A and 3A between the lower magnetic pole constituting piece 2 and the upper magnetic pole constituting piece 3 are adjusted to make the width of them coincident with a track width l easily.

7. 发明专利

JPS5891519A MAGNETIC HEAD 失效
公开(公告)号：JPS5891519A
公开(公告)日：1983-05-31
申请号：JP19900482
申请日：1982-11-15
申请人： PIONEER ELECTRONIC CORP
发明人： KOMATSUBARA TEIKI , YASUDA SHINJI , MASUMOTO MASARU , SATOU KAZUHIKO
IPC分类号： G11B5/10 , G11B5/127 , G11B5/40 , G11B5/49 , G11B15/60
摘要： PURPOSE:To effectively radiate the heat of a magnetic core, by exposing a metallic plate having thermal conductivity against the magnetic core, to the outside of a case, and also projecting this metallic plate to the outside from the case through a fitting plate part. CONSTITUTION:A magnetic core 1 consisting of ferrite, a coil 2 wound to the magnetic core 1, and a thermal conductive member 3 constituted of a material which is a nonmagnetic material such as copper and aluminum, and has good thermal conductivity are made to tightly adhere to the magnetic core through its center part, and also both sides are extended and become a fitting plate part 31. The fitting plate part 31 has a fitting hole 5. In a case 4 made of a resin such as polyacetal, etc., the magnetic core 1 is stored. Also, the lower surface of this case 4 is opened, and the metallic plate 3 is exposed. A tape guide 6 consists of the same material as the metallic plate 3, and desirably, it is formed as one body with the metallic plate 3 or has a tightly stuck construction so as to have thermal conductivity with the metallic plate 3, and positions a magnetic tape (not shown in fiture).

8. 发明专利

JPS5715209A MAGNETIC HEAD 失效
公开(公告)号：JPS5715209A
公开(公告)日：1982-01-26
申请号：JP8793780
申请日：1980-06-30
申请人： PIONEER ELECTRONIC CORP
发明人： UJIHARA TAKASHI , INOUE AKIMASA , YAMADA YOUZOU , IORAI TAKAO , YASUDA SHINJI
IPC分类号： G11B5/10 , G11B5/105
摘要： PURPOSE:To fix a magnetic head to a fitting base by a projection, provided to a core holder in the magnetic head, which extends to the outside of a shielding case. CONSTITUTION:On the bottom surface of a core holder 1, a projection 1b is formed in one body. The core holder 1 is contained in a shielding case 2 with a core fitted in the holder. The projection 1b is fitted in a hole 2a formed in the shielding case 2. A hole 3a formed in a fitting base 3 is fitted around the projection 1b projecting from the hole 2a of the shielding case 2, and the tip of the projection 1b projecting from the hole 3a of the fitting base 3 is increased in diameter by being caulked to anchor the shielding case to the fitting base 3. The positions of the projection and holes are determined at the same time when the core holder, shielding case and fitting base are formed individually, thereby eliminating the need for adjustments of size during its assembly.

9. 发明专利

JPS5685995A MOVINGGMAGNET TYPE PICKUP CARTRIDGE 失效
公开(公告)号：JPS5685995A
公开(公告)日：1981-07-13
申请号：JP16161279
申请日：1979-12-14
申请人： PIONEER ELECTRONIC CORP
发明人： OOKURA KENICHI , YASUDA SHINJI
IPC分类号： H04R11/08 , H04R11/12
摘要： PURPOSE:To obtain a large magnetic flux variation and a very flat characteristic, by using a fixed magnet jointly, to make its constitution unique, and using an air core coil. CONSTITUTION:A moving magnet 3 is fixed to the base end of the cantilever 2 having a reproducing stylus 1 in its tip. The magnet 3 is magnetized in the axial direction of the lever 2, and the back surface side is supported so as to be rocked freely. At a small interval on the side surface of the magnet 3, the fixed magnets 4, 4'are fixed to the cartridge so that they are located in the right and left vibrating directions of 45-45 stereo, seeing from the vibration supporting point of the vibration system. Coils 5, 5' for detecting a signal are installed to the side opposed to the magnet 3 of the magnets 4, 4' so that axes coincide with the vibrating direction of the vibration system. In this way, a large magnetic flux variation is obtained, furthermore the cartridge is even a moving-magnet type, the characteristic of very flat as an air core moving coil type is obtained.

10. 发明专利

JPS55160318A MANUFACTURE OF MAGNETIC HEAD CORE 失效
公开(公告)号：JPS55160318A
公开(公告)日：1980-12-13
申请号：JP6685879
申请日：1979-05-31
申请人： PIONEER ELECTRONIC CORP
发明人： YAMADA YOUZOU , YASUDA SHINJI , MASUMOTO MASARU , OOTA HIROYUKI
IPC分类号： G11B5/147 , G11B5/127
摘要： PURPOSE:To manufacture marked cores of high precision at a time by stacking and bonding magnetic laminate bodies, obtained by stacking and bonding tapes of a thin-plate magnetic body to track width, by a soluble adhesive and then by cutting the lamination in a desired core shape. CONSTITUTION:Magnetic materials 2 such as a sendust alloy, permalloy and ferrite are stacked to thickness equivalent to the fixed track width of a tape and then bonded mutually by an adhesive to form magnetic laminate body 3. On the right and left of this magnetic body 3, nonmagnetic metal plate 4 such as copper is bonded. This plate 4 makes magnetic bodies 2 easy to handle and also prevent magnetic body 2 from cracking in cutting core. Then, a more soluble adhesive than the above-mentioned adhesive is used to stack a few magnetic bodies 3 to form magnetic laminate assembly 5, which is cut into a laminate core by using an abrasive tool with a share point in a desired core shape. Next, assembly 5 is separated by an adequate method into laminate cores 7 made of magnetic body 3 at a time.

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