公开(公告)号：US5661620A

公开(公告)日：1997-08-26

申请号：US480792

申请日：1995-06-07

申请人： Norio Saito ,  Kenichi Baba ,  Yutaka Soda

发明人： Norio Saito ,  Kenichi Baba ,  Yutaka Soda

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： G11B5/3954 ,  G11B5/3903 ,  G11B5/3967

摘要： A magneto-resistance effect magnetic head in which the MR effects of the two MR thin films of a MR device are balanced for suppressing Barkhausen noise and assuring a stabilized output. Between a lower-layer magnetic shield core and an upper layer magnetic shield core is arranged an MR device, made up of two MR thin films such that a distance d.sub.1 between the lower-layer magnetic shield core and the MR thin film is smaller than a distance d.sub.2 between the upper-layer magnetic shield core and the MR thin film. A film thickness t.sub.1 of the MR thin film towards the lower-layer magnetic shield core is set so as to be thinner than a film thickness t.sub.2 of the MR thin film towards the upper-layer magnetic shield core. Preferably, the relation 0.5 3 holds.

摘要翻译： 一种磁阻效应磁头，其中MR装置的两个MR薄膜的MR效应被平衡以抑制巴克豪森噪声并确保稳定的输出。 在下层磁屏蔽芯和上层磁屏蔽芯之间布置有由两个MR薄膜构成的MR器件，使得下层磁屏蔽芯和MR薄膜之间的距离d1小于 上层磁屏蔽芯和MR薄膜之间的距离d2。 朝向下层磁屏蔽芯的MR薄膜的膜厚度t1被设定为比MR薄膜朝向上层磁屏蔽芯的膜厚度t2薄。 优选地，关系0.5 3的关系成立。

公开(公告)号：US5786965A

公开(公告)日：1998-07-28

申请号：US829731

申请日：1997-03-31

申请人： Norio Saito ,  Kenichi Baba ,  Yutaka Soda

发明人： Norio Saito ,  Kenichi Baba ,  Yutaka Soda

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： G11B5/3954 ,  G11B5/3903 ,  G11B5/3967

摘要： A magneto-resistance effect magnetic head in which the MR effects of the two MR thin films of a MR device are balanced for suppressing Barkhausen noise and assuring a stabilized output. Between a lower-layer magnetic shield core and an upper layer magnetic shield core is arranged an MR device, made up of two MR thin films such that a distance d.sub.1 between the lower-layer magnetic shield core and the MR thin film is smaller than a distance d.sub.2 between the upper-layer magnetic shield core and the MR thin film. A film thickness t.sub.1 of the MR thin film towards the lower-layer magnetic shield core is set so as to be thinner than a film thickness t.sub.2 of the MR thin film towards the upper-layer magnetic shield core. Preferably, the relation 0.5 3 holds.

摘要翻译： 一种磁阻效应磁头，其中MR装置的两个MR薄膜的MR效应被平衡以抑制巴克豪森噪声并确保稳定的输出。 在下层磁屏蔽芯和上层磁屏蔽芯之间布置有由两个MR薄膜构成的MR器件，使得下层磁屏蔽芯和MR薄膜之间的距离d1小于 上层磁屏蔽芯和MR薄膜之间的距离d2。 朝向下层磁屏蔽芯的MR薄膜的膜厚度t1被设定为比MR薄膜朝向上层磁屏蔽芯的膜厚度t2薄。 优选地，关系0.5 3的关系成立。

公开(公告)号：US6130810A

公开(公告)日：2000-10-10

申请号：US231513

申请日：1994-04-22

申请人： Takuji Shibata ,  Norio Saito ,  Yutaka Soda

发明人： Takuji Shibata ,  Norio Saito ,  Yutaka Soda

IPC分类号： G11B5/39

CPC分类号： G11B5/3948 ,  G11B5/3903

摘要： A magnetic reluctance effect magnetic head in which a forward side electrode is stacked on at least the surface of a magnetic reluctance effect element facing a magnetic recording medium, and in which an upper magnetic pole is stacked on the forward side electrode for facing the magnetic reluctance effect element. A connecting length L1 between the magnetic reluctance effect element and the forward side electrode is shorter than a facing length L2 over which the upper magnetic pole and the magnetic reluctance effect element face each other via a magnetic gap G. The upper magnetic pole and the magnetic reluctance effect element have an area in which the upper magnetic pole and the magnetic reluctance effect element face each other over a distance g2 larger than a magnetic gap length g1 of the magnetic gap G. The upper magnetic pole may be formed to be progressively spaced apart from the magnetic reluctance effect element by being angled 30.degree. relative to the magnetic reluctance effect element, and the distance g2 may be progressively increased. With the magnetic reluctance effect magnetic head, the playback output may be improved and the magnetic head may be reduced in size and in the power consumption.

摘要翻译： 一种磁阻效应磁头，其中前侧电极至少层叠在面对磁记录介质的磁阻效应元件的表面上，并且其中上磁极堆叠在用于面对磁阻的前侧电极上 效果元素。 磁阻效应元件和前侧电极之间的连接长度L1比上磁极和磁阻效应元件经由磁隙G彼此面对的面对长度L2短。上磁极和磁 磁阻效应元件具有上磁极和磁阻效应元件在比磁隙G的磁隙长度g1大的距离g2上彼此面对的区域。上磁极可以形成为逐渐间隔开 从磁阻效应元件相对于磁阻效应元件倾斜30度，并且距离g2可以逐渐增加。 利用磁阻效应磁头，可以提高重放输出，并且可以减小磁头的尺寸和功耗。

公开(公告)号：US5825594A

公开(公告)日：1998-10-20

申请号：US744639

申请日：1996-11-06

申请人： Koji Fukumoto ,  Yutaka Soda ,  Norio Saito ,  Takuji Shibata

发明人： Koji Fukumoto ,  Yutaka Soda ,  Norio Saito ,  Takuji Shibata

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： G11B5/3903 ,  G11B5/3153

摘要： A magneto-resistance effect-type magnetic head according to the present invention can generate a high reproduction output by increasing a quantity of magnetic flux passing across an effective magneto-sensitive zone of a magneto-resistance effect element, while maintaining its inherent functions as a means for preventing unnecessary magnetic flux from entering the MR element or as a recording pole. The magneto-resistance effect-type magnetic head for reproducing signals from a magnetic recording medium, includes a magneto-resistance effect element, upper and lower magnetic layers between which the magneto-resistance effect element is interposed, and a low-permeability magnetic layer provided on at least one of surfaces of the upper and lower magnetic layers which surfaces are opposed to the magneto-resistance effect element, the low-permeability magnetic layer having a magnetic permeability not more than half of a magnetic permeability of the upper or lower magnetic layer.

摘要翻译： 根据本发明的磁阻效应型磁头可以通过增加穿过磁阻效应元件的有效磁敏区的磁通量产生高再现输出，同时保持其固有功能为 用于防止不必要的磁通量进入MR元件或记录极的装置。 用于再现来自磁记录介质的信号的磁阻效应型磁头包括磁阻效应元件，介于该磁阻效应元件之间的上下磁层和设置有低磁导率磁性层 在与磁阻效应元件相对的上表面和下磁性层的至少一个表面上，低磁导率磁性层的磁导率不超过上磁层或下磁层的导磁率的一半 。

公开(公告)号：US06246545B1

公开(公告)日：2001-06-12

申请号：US09025792

申请日：1998-02-19

申请人： Hiroaki Ono ,  Norio Saito ,  Yutaka Soda

发明人： Hiroaki Ono ,  Norio Saito ,  Yutaka Soda

IPC分类号： G11B560

CPC分类号： G11B5/6005 ,  G11B21/21

摘要： To provide a head slider capable of enhancing the electromagnetic transductional characteristic of a magnetic head and a magnetic disk unit provided with the head slider, the head slider provided with a rail on each side and floated over a magnetic disk by air flow, the head slider for reading or recording information from/in the magnetic disk mounted on the rail on one side of the head slider, and the rails formed asymmetrically so that the floated quantity of the rail on the side on which the head slider is mounted is lower than the floated quantity of the rail on the side on which the head slider is not mounted.

摘要翻译： 为了提供能够提高磁头的电磁传导特性的磁头滑块和设置有磁头滑块的磁盘单元，磁头滑动器在每一侧设置有轨道并通过气流浮动在磁盘上，磁头滑块 用于从安装在磁头滑块的一侧的轨道上的磁盘读取或记录信息，并且不对称地形成轨道，使得轨道在浮动头滑块的一侧上的漂浮量低于 未安装磁头滑动器一侧的导轨的浮动量。

公开(公告)号：US5535077A

公开(公告)日：1996-07-09

申请号：US356533

申请日：1994-12-15

申请人： Norio Saito ,  Yutaka Soda

发明人： Norio Saito ,  Yutaka Soda

IPC分类号： G11B5/39

CPC分类号： G11B5/3929 ,  G11B5/3945

摘要： A magnetoresistive effect magnetic head having a film comprising laminated first and second magnetoresistive elements with an electrically conductive intermediate film therebetween, and a pair of shield members positioned on both sides of the laminated film. Even if a magnetic gap of the head is reduced in length, the magnetic equilibrium of the first and second magneto-resistive elements may be stabilized by allowing over 10% of the current through the film to go through the intermediate film, thereby enabling a high playback output to be produced when reproducing signals on a magnetic medium.

摘要翻译： 一种具有膜的磁阻效应磁头，包括层压的第一和第二磁阻元件，其间具有导电中间膜，以及位于层压膜两侧的一对屏蔽构件。 即使头部的磁隙长度减小，也可以通过使超过10％的电流通过中间膜来稳定第一和第二磁阻元件的磁平衡，从而使高 在磁介质上再现信号时将产生播放输出。

公开(公告)号：US4801720A

公开(公告)日：1989-01-31

申请号：US46444

申请日：1987-05-06

申请人： Sigeru Torii ,  Hideo Tanaka ,  Junzo Nokami ,  Michio Sasaoka ,  Norio Saito ,  Takashi Siroi

发明人： Sigeru Torii ,  Hideo Tanaka ,  Junzo Nokami ,  Michio Sasaoka ,  Norio Saito ,  Takashi Siroi

IPC分类号： C07D205/08 ,  C07D205/095 ,  C07D403/12 ,  C07D417/12 ,  C07D417/14 ,  C07D501/20 ,  C07D501/36 ,  C07B43/06 ,  C07B45/00 ,  C07D401/12

CPC分类号： C07D403/12 ,  C07D205/095 ,  C07D417/12 ,  C07D417/14 ,  Y02P20/55

摘要： An azetidinone derivative represented by the formula (I) ##STR1## wherein R.sup.1 is substituted or unsubstituted phenyl or substituted or unsubstituted phenoxy, R.sup.2 is hydrogen, optionally substituted hydrocarbon residue or amino-protecting group selected from acyl, silyl, sulfonyl and phosphonyl derived from organic or inorganic acid, ##STR2## is >C.dbd.O or>C.dbd.N--OR.sup.3 (wherein R.sup.3 is hydrogen or lower alkyl), X.sup.1 and X.sup.2 are the same or different and are halogen, hydroxyl, alkoxy, acyloxy, SR.sup.4 (wherein R.sup.4 is straight chain or branched chain lower alkyl substituted or unsubstituted, substituted or unsubstituted phenyl or substituted or unsubstituted heterocyclic group), amino or hydrogen, one of X.sup.1 and X.sup.2 being hydrogen when the other is not, and R.sup.5 is substituted or unsubstituted phenyl or substituted or unsubstituted heterocyclic group, and a process for preparing the same.

摘要翻译： 由式（I）表示的氮杂环丁酮衍生物其中R1是取代或未取代的苯基或取代或未取代的苯氧基，R2是氢，任选取代的烃残基或氨基保护基，其选自酰基，甲硅烷基，磺酰基和 衍生自有机或无机酸的膦酰基是C = O或C = N-OR 3（其中R 3为氢或低级烷基），X 1和X 2相同或不同，为卤素，羟基，烷氧基，酰氧基 ，SR4（其中R4是直链或支链低级烷基取代或未取代的，取代或未取代的苯基或取代或未取代的杂环基），氨基或氢，当另一个未被取代时，X 1和X 2之一为氢，R 5为取代基 或未取代的苯基或取代或未取代的杂环基，及其制备方法。

公开(公告)号：US4789740A

公开(公告)日：1988-12-06

申请号：US23970

申请日：1987-03-09

申请人： Sigeru Torii ,  Hideo Tanaka ,  Yuzuru Ogata ,  Michio Sasaoka ,  Norio Saito ,  Shigemitsu Nagao

发明人： Sigeru Torii ,  Hideo Tanaka ,  Yuzuru Ogata ,  Michio Sasaoka ,  Norio Saito ,  Shigemitsu Nagao

IPC分类号： C07D205/08 ,  C07D205/095 ,  C07B39/00

CPC分类号： C07D205/095 ,  Y02P20/55

摘要： A process for preparing an azetidinone derivative represented by the formula (I) ##STR1## wherein R.sup.1 represents an aryl group, arylmethyl group or aryloxymethyl group, R.sup.2 represents hydrogen atom or a carboxyl-protecting group and R.sup.3 represents an alkyl group or aryl group, the process comprising reacting an azetidinone derivative represented by the formula (II) ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are as defined above with a chlorinating agent.

摘要翻译： 制备由式（I）表示的氮杂环丁酮衍生物的方法其中R 1表示芳基，芳基甲基或芳氧基甲基，R 2表示氢原子或羧基保护基，R 3表示烷基或 芳基，该方法包括使由式（II）表示的氮杂环丁酮衍生物（II）（其中R 1，R 2和R 3如上定义）与氯化剂反应。

公开(公告)号：US4689411A

公开(公告)日：1987-08-25

申请号：US865651

申请日：1986-05-15

申请人： Sigeru Torii ,  Kenji Uneyama ,  Hideo Tanaka ,  Junzo Nokami ,  Michio Sasaoka ,  Norio Saito ,  Takashi Shiroi

发明人： Sigeru Torii ,  Kenji Uneyama ,  Hideo Tanaka ,  Junzo Nokami ,  Michio Sasaoka ,  Norio Saito ,  Takashi Shiroi

IPC分类号： C07D205/095 ,  C07D403/12 ,  C07D501/02 ,  C07D501/08 ,  C07F9/568 ,  C07D205/08 ,  C07F9/65

CPC分类号： C07D403/12 ,  C07D205/095 ,  C07F9/568

摘要： This invention provides azetidinone derivatives represented by the formula ##STR1## and processes for preparing the same. The azetidinone derivatives are used as the intermediates for producing cephalosporin compounds useful as antibiotic agents.

摘要翻译： 本发明提供由式“IMAGE”表示的氮杂环丁酮衍生物及其制备方法。 氮杂环丁酮衍生物用作生产用作抗生素剂的头孢菌素化合物的中间体。

公开(公告)号：US4622178A

公开(公告)日：1986-11-11

申请号：US608695

申请日：1984-05-01

申请人： Shigeru Torii ,  Hideo Tanaka ,  Junzo Nogami ,  Michio Sasaoka ,  Norio Saito ,  Takashi Shiroi

发明人： Shigeru Torii ,  Hideo Tanaka ,  Junzo Nogami ,  Michio Sasaoka ,  Norio Saito ,  Takashi Shiroi

IPC分类号： C07D205/08 ,  C07D205/095 ,  C07D401/12 ,  C07D403/12 ,  C07D417/12 ,  C07D417/14 ,  C07D401/14

CPC分类号： C07D401/12 ,  C07D205/095 ,  C07D403/12 ,  C07D417/12 ,  C07D417/14 ,  Y02P20/55

摘要： A process for preparing an azetidinone derivative represented by the formula ##STR1## wherein R.sup.1 represents a straight-chain or branched-chain lower alkyl group, substituted or unsubstituted aryl group, substituted or unsubstituted phenylmethyl group or substituted or unsubstituted phenyloxymethyl group, R.sup.2 represents hydrogen atom, an optionally substituted hydrocarbon residue or protective group for amino group selected from the class consisting of acyl, silyl, sulfonyl and phosphonyl derived from organic or inorganic acid, and R.sup.3 represents a substituted or unsubstituted aryl group or the residue of substituted or unsubstituted heterocyclic ring.

摘要翻译： PCT No.PCT / JP83 / 00298 Sec。 371日期1984年5月1日 102（e）日期1984年5月1日PCT提交1983年9月6日PCT公布。 出版物WO84 / 00960 日本3月15日，1984年。一种制备式（I）表示的氮杂环丁酮衍生物的方法，其中R 1表示直链或支链的低级烷基，取代或未取代的芳基，取代或未取代的苯基甲基 或取代或未取代的苯氧基甲基，R2表示氢原子，任选取代的烃残基或选自有机或无机酸的酰基，甲硅烷基，磺酰基和膦酰基的氨基的保护基，R3表示取代或未取代的 芳基或取代或未取代的杂环的残基。