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1. 发明授权

EP0814519B1 Magnetoresistive effect device, process for fabricating the same, and magnetic head produced using the same 失效
标题翻译：元件与磁阻效应，其制造方法和磁头从
公开(公告)号：EP0814519B1
公开(公告)日：2004-01-21
申请号：EP97109660.7
申请日：1997-06-13
申请人： SHARP KABUSHIKI KAISHA
发明人： Deguchi, Haruhiko , Nakabayashi, Takaya , Komoda, Tomohisa , Kira, Tohru , Fujita, Noboru , Uneyama, Kazuhiro
IPC分类号： H01L43/08 , H01F10/08 , G11B5/39 , H01L43/10
CPC分类号： B82Y25/00 , G11B5/3906 , H01F10/3268 , H01L43/08

2. 发明授权

EP0534791B1 Magnetoresistance effect type thin film magnetic head 失效
标题翻译：磁阻效应薄膜磁头
公开(公告)号：EP0534791B1
公开(公告)日：1997-04-02
申请号：EP92308783.7
申请日：1992-09-25
申请人： SHARP KABUSHIKI KAISHA
发明人： Komoda, Tomohisa , Minakata, Ryoji , Kira, Tohru , Fujii, Akiyoshi , Suzuki, Hiroshi , Mukai, Atsuo
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/3903 , G11B5/3932

3. 发明公开

EP0519182A3 Combined thin film magnetic head 失效
标题翻译：组合薄膜磁头
公开(公告)号：EP0519182A3
公开(公告)日：1994-07-27
申请号：EP92106881.3
申请日：1992-04-22
申请人： SHARP KABUSHIKI KAISHA
发明人： Kira, Tohru
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/00813 , G11B5/3903 , G11B5/3967 , G11B5/397
摘要： A combined thin film magnetic head includes a first yoke type magnetic head (200a) and a second yoke type MR head (200b) a front gap (20a, 20b) is provided at a front end of the first yoke type MR head (200a), and a second yoke type MR head (200b) is provided behind the first yoke type MR head (200a). Consequently, the first yoke type MR head (200a) and the second yoke type MR head (200b) can be formed on the same substrate through the same process steps, and the number of manufacturing steps can be significantly reduced.
摘要翻译：组合的薄膜磁头包括第一磁轭式磁头（200a）和第二磁轭型MR磁头（200b），在第一磁轭型MR磁头（200a）的前端设有前隙（20a，20b）并且在第一磁轭型MR磁头（200a）的后面设置有第二磁轭型MR磁头（200b）。因此，可以通过相同的工艺步骤在同一基板上形成第一磁轭型MR磁头（200a）和第二磁轭型MR磁头（200b），并且可以显着地减少制造步骤的数量。

4. 发明公开

EP0814519A3 Magnetoresistive effect device, process for fabricating the same, and magnetic head produced using the same 失效
标题翻译：磁阻效应器件，其制造方法以及使用该磁阻效应器件制造的磁头
公开(公告)号：EP0814519A3
公开(公告)日：1998-01-14
申请号：EP97109660.7
申请日：1997-06-13
申请人： SHARP KABUSHIKI KAISHA
发明人： Deguchi, Haruhiko , Nakabayashi, Takaya , Komoda, Tomohisa , Kira, Tohru , Fujita, Noboru , Uneyama, Kazuhiro
IPC分类号： H01L43/08 , H01F10/08 , G11B5/39
CPC分类号： B82Y25/00 , G11B5/3906 , H01F10/3268 , H01L43/08
摘要： A magnetoresistive effect device is formed by layering a nonmagnetic Co oxide film, a pinned magnetization layer made of Co, a nonmagnetic layer made of Cu, a free magnetization layer made of NiFe in this order on a substrate made of glass or Si. By arranging the nonmagnetic Co oxide film in contact with the pinned magnetization layer, it is possible to produce a magnetoresistive effect device with a high saturation field and a high sensitivity.
摘要翻译：通过在由玻璃或Si制成的衬底上依次层叠非磁性Co氧化物膜，由Co制成的钉扎磁化层，由Cu制成的非磁性层，由NiFe制成的自由磁化层，形成磁阻效应装置。通过使非磁性Co氧化物膜与钉扎磁化层接触，能够制造饱和磁场高且灵敏度高的磁阻效应元件。

5. 发明授权

EP0519182B1 Combined thin film magnetic head 失效
标题翻译：合并的薄膜磁头
公开(公告)号：EP0519182B1
公开(公告)日：1997-02-12
申请号：EP92106881.3
申请日：1992-04-22
申请人： SHARP KABUSHIKI KAISHA
发明人： Kira, Tohru
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/00813 , G11B5/3903 , G11B5/3967 , G11B5/397

6. 发明公开

EP0348230A2 Process for producing thin film magnetic head 失效
标题翻译： Verfahren zur Herstellung einesDünnfilmmagnetkopfes。
公开(公告)号：EP0348230A2
公开(公告)日：1989-12-27
申请号：EP89306405.5
申请日：1989-06-23
申请人： SHARP KABUSHIKI KAISHA
发明人： Nakamura, Tsuneo , Imae, Kazuyoshi , Deguchi, Haruhiko , Kira, Tohru
IPC分类号： H01F41/14 , G11B5/31
CPC分类号： H01F41/34 , G11B5/3163 , Y10T29/49044 , Y10T29/49046 , Y10T29/49064
摘要： An improved process for producing a thin film magnetic head comprising forming a nonmagnetic material layer (4) over a lower magnetic core layer (2) with an electrically conductive coil layer (6) embedded in the nonmagnetic material layer, and forming an upper magnetic core layer (8) of a predetermined pattern (3, 8) by a specific method over the resultant to provide the thin film magnetic head.
摘要翻译：一种用于制造薄膜磁头的改进方法，包括在下磁芯层（2）上形成非磁性材料层（4），其中嵌有非磁性材料层的导电线圈层（6），并形成上磁芯通过特定方法在预定图案（3,8）上形成层（8），以提供薄膜磁头。

7. 发明公开

EP0581265A3 Composite magnetic head 失效
标题翻译：复合磁头
公开(公告)号：EP0581265A3
公开(公告)日：1995-11-15
申请号：EP93112061.2
申请日：1993-07-28
申请人： SHARP KABUSHIKI KAISHA
发明人： Muramatsu, Tetsurou , Kira, Tohru , Ishikawa, Toshio
IPC分类号： G11B5/39 , G11B5/48 , G11B5/105
CPC分类号： G11B5/3967 , G11B5/00878 , G11B5/105 , G11B5/488 , G11B5/4893
摘要： The head has a bulk head (11) for recording/reproducing an analog signal and a thin film magnetic head (4,5) for recording/reproducing a digital signal arranged adjacent to each other in a traveling width of a magnetic tape to be integrated. Because of this structure, it is possible to approximately double the number of thin film magnetic heads taken per wafer, whereby productivity is improved. Since bulk head (11) is used for recording/reproducing an analog signal, it is possible to reduce a manufacturing cost. It is also possible to avoid a problem of generation of a noise peculiar to the case where an analog signal is recorded/reproduced by the thin film magnetic head.
摘要翻译：复合磁头具有用于记录/再现模拟信号的体积磁头（11）和用于在磁带的行进宽度中记录/再现彼此相邻布置的数字信号的薄膜磁头（4,5）被整合。由于这种结构，可以使每个晶片获取的薄膜磁头的数目大约增加一倍，从而提高生产率。由于散装头（11）用于记录/再现模拟信号，因此可以降低制造成本。也可以避免产生由薄膜磁头记录/再现模拟信号的情况所特有的噪声的问题。

8. 发明公开

EP0581265A2 Composite magnetic head 失效
标题翻译： Zusammengesetzter Magnetkopf。
公开(公告)号：EP0581265A2
公开(公告)日：1994-02-02
申请号：EP93112061.2
申请日：1993-07-28
申请人： SHARP KABUSHIKI KAISHA
发明人： Muramatsu, Tetsurou , Kira, Tohru , Ishikawa, Toshio
IPC分类号： G11B5/39 , G11B5/48 , G11B5/105
CPC分类号： G11B5/3967 , G11B5/00878 , G11B5/105 , G11B5/488 , G11B5/4893
摘要： The head has a bulk head (11) for recording/reproducing an analog signal and a thin film magnetic head (4,5) for recording/reproducing a digital signal arranged adjacent to each other in a traveling width of a magnetic tape to be integrated. Because of this structure, it is possible to approximately double the number of thin film magnetic heads taken per wafer, whereby productivity is improved. Since bulk head (11) is used for recording/reproducing an analog signal, it is possible to reduce a manufacturing cost. It is also possible to avoid a problem of generation of a noise peculiar to the case where an analog signal is recorded/reproduced by the thin film magnetic head.
摘要翻译：复合磁头具有用于记录/再现模拟信号的体积磁头（11）和用于在磁带的行进宽度中记录/再现彼此相邻布置的数字信号的薄膜磁头（4,5）被整合。由于这种结构，可以使每个晶片获取的薄膜磁头的数目大约增加一倍，从而提高生产率。由于散装头（11）用于记录/再现模拟信号，因此可以降低制造成本。也可以避免产生由薄膜磁头记录/再现模拟信号的情况所特有的噪声的问题。

9. 发明公开

EP0534791A3 Magnetoresistance effect type thin film magnetic head 失效
标题翻译：磁阻效应型薄膜磁头
公开(公告)号：EP0534791A3
公开(公告)日：1993-06-16
申请号：EP92308783.7
申请日：1992-09-25
申请人： SHARP KABUSHIKI KAISHA
发明人： Komoda, Tomohisa , Minakata, Ryoji , Kira, Tohru , Fujii, Akiyoshi , Suzuki, Hiroshi , Mukai, Atsuo
IPC分类号： G11B5/39
CPC分类号： G11B5/3925 , G11B5/3903 , G11B5/3932
摘要： The head includes a MR element (1) having the electrical resistance changed according to a change in an applied signal magnetic field, a lead electrode (2) for detecting a voltage change generated across the ends of the MR element in which a change in electrical resistance is generated, and high coercive force films (11a, 11b) for applying a weak magnetic field to the MR element (1). The high coercive force films (11a, 11b) are arranged in the proximity of the ends of the MR element (1) and at a predetermined position between the ends. According to this structure, a weak magnetic field is applied in uniform over the entire MR element to facilitate unification of magnetic domain of the MR element even in the case of a long MR element (1). Therefore, unification of magnetic domain can easily be carried out over the entire region of the MR element without increasing the film thickness of the high coercive force film even in the case of a wide track width, resulting in a thin film magnetic head with no Barkhausen noise generation.

10. 发明公开

EP0348169A2 Thin film magnetic head 失效
标题翻译： Dünnschicht-Magnetkopf。
公开(公告)号：EP0348169A2
公开(公告)日：1989-12-27
申请号：EP89306258.8
申请日：1989-06-21
申请人： SHARP KABUSHIKI KAISHA
发明人： Kira, Tohru
IPC分类号： G11B5/31
CPC分类号： G11B5/4893 , G11B5/3103 , G11B5/3106 , Y10T29/49044 , Y10T29/49046
摘要： A thin film magnetic head comprises first and second head chips, each of the head chips providing a substrate (3), a reproducing (1) head portion and a recording head portion (2) provided in a side edge portion on the substrate (3), and a protecting plate covering the reproducing head portion and the recording head portion; the reproducing head portion (1) and the recording head portion (2) having a lower magnetic layer (11a, 11b, 12a, 12b), an electroconductive coil layer (15a, 15b), an upper magnetic layer (17a, 17b, 18a, 18b) and insulation layers (16a, 16b) interposed therebetween, which are deposited on the substrate (3) one after another, the recording head portion (1) in the first head chip and the reproducing head portion (2) in the second head chip being mated into a recording/reproducing head portion, the reproducing head portion (2) in the first head chip and the recording head portion (1) in the second head chip being mated into another recording/reproducing head portion, the recording/reproducing head portions being positioned in an inverted arrangement to each other relative to a traveling direction of a magnetic recording medium.
摘要翻译：薄膜磁头包括第一和第二磁头芯片，每个磁头芯片提供基板（3），设置在基板（3）的侧边缘部分中的再现（1）磁头部分和记录头部分（2））和覆盖再现头部和记录头部的保护板; 具有下磁性层（11a，11b，12a，12b），导电线圈层（15a，15b），上磁性层（17a，17b，18a）的记录头部分（2），18b）和介于它们之间的绝缘层（16a，16b），它们彼此沉积在基板（3）上，第一磁头芯片中的记录头部分（1）和第二磁头部分中的再现磁头部分（2）头芯片配合到记录/再现头部分中，第一头芯片中的再现头部分（2）和第二头部芯片中的记录头部分（1）配合到另一记录/再现头部分中，记录/ 再现头部相对于磁记录介质的行进方向彼此相反地布置。

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