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公开(公告)号：US4760481A
公开(公告)日：1988-07-26
申请号：US888116
申请日：1986-07-22
申请人： Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Keiko Shiokawa , Yoshihiro Hamakawa , Saburo Suzuki , Harunobu Saito
发明人： Isamu Yuito , Eijin Moriwaki , Kazuo Shiiki , Keiko Shiokawa , Yoshihiro Hamakawa , Saburo Suzuki , Harunobu Saito
CPC分类号： G11B5/3163
摘要： Disclosed is a thin film magnetic head having a structure wherein the main portion of a coil consists of a copper or copper alloy layer and its upper surface is covered with a thin film mask consisting of titanium, titanium oxide, chromium and/or chromium oxide. The magnetic head of the invention can prevent the occurrence of projecting etching residues at the upper edge portion of the coil and can easily increase the cross-sectional area and the winding density of the coil. Furthermore, when the thin film mask consists of titanium and/or titanium oxide, a titanium diffusion prevention film consisting of chromium, for example, is interposed between the thin film mask and the copper or copper alloy, so that the resistance change of the coil scarcely takes place owing to heat treatment in a production process after the formation of the coil and the head reliability can be further improved.
摘要翻译： 公开了一种薄膜磁头，其结构是线圈的主要部分由铜或铜合金层组成，其上表面被由钛，氧化钛，铬和/或氧化铬组成的薄膜掩模覆盖。 本发明的磁头可以防止在线圈的上边缘部分产生突出的蚀刻残留物，并且可以容易地增加线圈的横截面面积和卷绕密度。 此外，当薄膜掩模由钛和/或氧化钛组成时，例如由铬组成的钛扩散防止膜插入在薄膜掩模和铜或铜合金之间，使得线圈的电阻变化 由于在线圈形成后的生产过程中的热处理几乎不发生，并且可以进一步提高头的可靠性。
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公开(公告)号：US4841402A
公开(公告)日：1989-06-20
申请号：US004623
申请日：1987-01-20
申请人： Tadashi Imanaka , Masayuki Takagi , Eisei Togawa , Harunobu Saito , Sadanori Nagaike , Masaki Ohura , Saburo Suzuki , Tetsuo Kobayashi , Shunichiro Kuwatsuka
发明人： Tadashi Imanaka , Masayuki Takagi , Eisei Togawa , Harunobu Saito , Sadanori Nagaike , Masaki Ohura , Saburo Suzuki , Tetsuo Kobayashi , Shunichiro Kuwatsuka
CPC分类号： G11B5/17 , G11B5/31 , Y10T29/49044 , Y10T29/49062 , Y10T29/49064
摘要： A thin film magnetic head having two conductor layers provided within a magnetic circuit constituted by a first and a second magnetic member. The magnetic circuit has, at the side to which a recording medium is opposed, a portion where the first and second magnetic members are opposed to each other over a length substantially equal to a gap depth, intervening a non-magnetic gap member therebetween, and a portion ahead thereof where they are connected with each other. The edge of the gap member constitutes an aperture of the magnetic circuit. The thin film magnetic head arranged as above permits a high density recording without reducing its production yield.
摘要翻译： 一种薄膜磁头，其具有设置在由第一和第二磁性构件构成的磁路内的两个导体层。 所述磁路在与记录介质相对的一侧具有第一和第二磁性构件在基本上等于间隙深度的长度上彼此相对的部分，其间插入非磁性间隙构件，以及 在它们之前的部分，它们彼此连接。 间隙构件的边缘构成磁路的孔。 如上所述布置的薄膜磁头允许高密度记录而不降低其产量。
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公开(公告)号：US06483663B2
公开(公告)日：2002-11-19
申请号：US09354467
申请日：1999-07-15
申请人： Tomohiro Okada , Tetsuya Okai , Shinobu Sasaki , Tadayuki Iwakura , Naoki Koyama , Takashi Kawabe , Harunobu Saito , Makoto Morijiri
发明人： Tomohiro Okada , Tetsuya Okai , Shinobu Sasaki , Tadayuki Iwakura , Naoki Koyama , Takashi Kawabe , Harunobu Saito , Makoto Morijiri
IPC分类号： G11B5147
CPC分类号： G11B5/3116 , G11B5/012 , G11B5/3163 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Disclosed is a magnetic disk apparatus including a magnetic reproducing head portion, and a magnetic recording head including an upper magnetic core having a end portion and a rear portion. As a resist for a frame which is used for forming the rear portion, a negative resist or an electron beam resist is used, whereby the frame is formed without any adverse effect of halation from a coil insulating film. That is, it is possible to manufacture a magnetic recording head in which the rear portion of an upper magnetic core is not emerged at the face opposed to a medium, and hence to obtain a magnetic disk apparatus exhibiting an areal recording density of 5 Gbit/in2 or more by mounting a magnetic recording/reproducing head including such a magnetic recording head.
摘要翻译： 公开了一种包括磁性再现头部的磁盘装置和包括具有端部和后部的上部磁芯的磁性记录头。 作为用于形成后部的框架的抗蚀剂，使用负性抗蚀剂或电子束抗蚀剂，由此形成框架，而不会产生从线圈绝缘膜的不利影响。 也就是说，可以制造其中在与介质相对的表面上没有出现上磁芯的后部的磁记录头，从而获得表现出5Gbit / s的面密度的磁盘装置， in2以上，通过安装包括这种磁记录头的磁记录/再现头。
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4.发明授权Thin-film magnetic head having special input/output terminal backing connection and method of fabricating the same 失效具有特殊输入/输出端子背衬连接的薄膜磁头及其制造方法
公开(公告)号：US4949209A
公开(公告)日：1990-08-14
申请号：US231505
申请日：1988-08-12
IPC分类号： G11B5/31
CPC分类号： G11B5/3106 , G11B5/313
摘要： In a thin-film magnetic head having a magnetic core (upper magnetic layer), in the electromagnetic conversion section, which are composed of an upper first magnetic film, inorganic insulating film, and an upper second magnetic film, the upper first magnetic film is used as a second wiring for electrical continuity between the coil and input/output terminal. The upper first magnetic film is connected to the center of a coil which is of a single-layer structure. The first upper magnetic film is made of a same material as the coil and is formed simultaneously with the latter. In the region in which an input/output terminal backing is formed, the upper first magnetic film of a second wiring is removed. Thus, the electrical continuity is established between the input/output terminal and the center of the coil.Also, the utilization of the upper first magnetic film as second wiring is applicable to a thin-film magnetic head having a coil of a multi-layer structure.
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公开(公告)号：US20130028948A1
公开(公告)日：2013-01-31
申请号：US13577351
申请日：2011-02-01
申请人： Tsutomu Yamamoto , Harunobu Saito , Mika Onai , Atsuki Terabe , Masaru Mikami
发明人： Tsutomu Yamamoto , Harunobu Saito , Mika Onai , Atsuki Terabe , Masaru Mikami
IPC分类号： C08K3/22 , A61K8/11 , A61Q17/04 , C09D5/00 , C08L83/04 , C09D183/04 , C09D11/00 , A61K8/29 , B05D5/00
CPC分类号： C09C1/3661 , C01P2002/84 , C01P2006/12 , C01P2006/13 , C08K3/22 , C08K9/02 , C08K9/06 , C09D7/62
摘要： Disclosed are titanium dioxide-containing composite particles which can maintain whiteness of natural titanium dioxide even after calcination step, and can provide titanium dioxide-containing composite particles having excellent weather resistance. In each of the composite particles, at least one oxide layer containing silicon oxide and zirconium oxide is provided as coating components of titanium dioxide. That is, provided are composite particles including a base that contains titanium dioxide and at least one oxide layer that contains silicon oxide and zirconium oxide provided on the base, and a method of producing the composite particles.
摘要翻译： 公开了即使在煅烧步骤之后也可以保持天然二氧化钛的白度的含二氧化钛的复合颗粒，并且可以提供具有优异耐候性的含二氧化钛的复合颗粒。 在每个复合颗粒中，提供至少一个含有氧化硅和氧化锆的氧化物层作为二氧化钛的涂层组分。 也就是说，提供了包括含有二氧化钛的基底和在基底上设置有氧化硅和氧化锆的至少一个氧化物层的复合粒子，以及复合粒子的制造方法。
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公开(公告)号：USD569230S1
公开(公告)日：2008-05-20
申请号：US29259552
申请日：2006-05-11
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公开(公告)号：US20050168876A1
公开(公告)日：2005-08-04
申请号：US11095533
申请日：2005-04-01
申请人： Gen Oikawa , Shuichi Kojima , Harunobu Saito , Noriyuki Saiki , Masayasu Kagawa , Akira Kondo , Kenji Ishikake , Hiromi Shiina
发明人： Gen Oikawa , Shuichi Kojima , Harunobu Saito , Noriyuki Saiki , Masayasu Kagawa , Akira Kondo , Kenji Ishikake , Hiromi Shiina
CPC分类号： B82Y25/00 , B82Y10/00 , G11B5/3103 , G11B5/3113 , G11B5/3163 , G11B5/3967 , G11B2005/3996 , Y10T29/49032 , Y10T29/49044
摘要： In formation of an upper shield of a magnetic thin film head by electroplating, a current density of electroplating is regulated stepwise with time. Thus, in the upper shield formation, a film composition and magnetic characteristic with respect to the direction of film thickness can be controlled precisely, making it possible to provide a magnetic thin film head featuring significantly reduced noise-after-write and output fluctuation.
摘要翻译： 在通过电镀形成磁性薄膜头的上屏蔽时，电流的电流密度随时间逐步调节。 因此，在上屏蔽形成中，可以精确地控制膜组成和相对于膜厚度方向的磁特性，使得可以提供具有显着降低的写入后和输出波动的磁性薄膜头。
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公开(公告)号：USD567397S1
公开(公告)日：2008-04-22
申请号：US29259549
申请日：2006-05-11
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公开(公告)号：US07068467B2
公开(公告)日：2006-06-27
申请号：US10933451
申请日：2004-09-03
申请人： Tomohiro Okada , Tetsuya Okai , Shinobu Sasaki , Tadayuki Iwakura , Naoki Koyama , Harunobu Saito , Makoto Morijiri
发明人： Tomohiro Okada , Tetsuya Okai , Shinobu Sasaki , Tadayuki Iwakura , Naoki Koyama , Harunobu Saito , Makoto Morijiri
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/012 , G11B5/3163 , Y10T29/49032 , Y10T29/49041 , Y10T29/49043 , Y10T29/49044 , Y10T29/49046 , Y10T29/49048 , Y10T29/49052
摘要： Disclosed is a magnetic disk apparatus including a magnetic reproducing head portion, and a magnetic recording head including an upper magnetic core having a end portion and a rear portion. As a resist for a frame which is used for forming the rear portion, a negative resist or an electron beam resist is used, whereby the frame is formed without any adverse effect of halation from a coil insulating film. That is, it is possible to manufacture a magnetic recording head in which the rear portion of an upper magnetic core is not emerged at the face opposed to a medium, and hence to obtain a magnetic disk apparatus exhibiting an areal recording density of 5 Gbit/in2 or more by mounting a magnetic recording/reproducing head including such a magnetic recording head.
摘要翻译： 公开了一种包括磁性再现头部的磁盘装置和包括具有端部和后部的上部磁芯的磁性记录头。 作为用于形成后部的框架的抗蚀剂，使用负性抗蚀剂或电子束抗蚀剂，由此形成框架，而不会产生从线圈绝缘膜的不利影响。 也就是说，可以制造其中在与介质相对的表面上没有出现上磁芯的后部的磁记录头，从而获得表现出5Gbit / s的面密度的磁盘装置， 通过安装包括这种磁记录头的磁记录/重放头在 2以上。
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公开(公告)号：US5349745A
公开(公告)日：1994-09-27
申请号：US69586
申请日：1993-06-01
申请人： Takashi Kawabe , Eiji Ashida , Moriaki Fuyama , Tadayuki Iwakura , Hiroshi Fukui , Yoshikazu Tsuji , Shunichiro Kuwatsuka , Harunobu Saito , Yoshiki Hagiwara , Issei Takemoto , Masayasu Fujisawa
发明人： Takashi Kawabe , Eiji Ashida , Moriaki Fuyama , Tadayuki Iwakura , Hiroshi Fukui , Yoshikazu Tsuji , Shunichiro Kuwatsuka , Harunobu Saito , Yoshiki Hagiwara , Issei Takemoto , Masayasu Fujisawa
CPC分类号： G11B5/3116 , G11B5/3163 , Y10T29/49052
摘要： A method of fabricating a thin-film magnetic in which a mask pattern in etching a bottom pole is formed of first and second mask films in this order when viewed from the bottom pole, the first mask film is used for defining, by self-alignment, the length of that portion of the side edge of a top pole which is nearly perpendicular to a magnetic gap, the second mask film makes it possible to etch the bottom pole with high dimensional accuracy, a non-magnetic film is formed on the mask pattern having the bottom pole thereunder and the exposed region of a substrate, and the top pole is formed after the mask pattern has been exposed and removed.
摘要翻译： 一种制造薄膜磁性的方法，其中当从底极观察时，其中蚀刻底极中的掩模图案依次由第一和第二掩模膜形成，第一掩模膜用于通过自对准 ，几乎垂直于磁隙的顶极的侧边缘部分的长度，第二掩模膜使得可以以高尺寸精度蚀刻底极，在掩模上形成非磁性膜 具有底极的图案和基板的曝光区域，并且在掩模图案被曝光和去除之后形成顶极。
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