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1. 发明授权

US06175296B1 Potentiometer provided with giant magnetoresistive effect elements 有权
标题翻译：电位器配有巨磁阻效应元件
公开(公告)号：US06175296B1
公开(公告)日：2001-01-16
申请号：US09353293
申请日：1999-07-12
申请人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
发明人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
IPC分类号： H01L4300
CPC分类号： G01D5/145
摘要： The potentiometer of the present invention includes at least a pair of giant magnetoresistive effect elements, in which the giant magnetoresistive effect elements to be paired are formed on a substrate in a state that the elements are connected mutually electrically with the orientations of magnetization axes of the pinned magnetic layers facing 180° opposite each other, and a magnetic coding member is rotatably provided to face the giant magnetoresistive effect elements on the substrate, the magnetic coding member is disposed in such a manner that the center of rotation of the magnetic coding member passes through an intermediate position of the giant magnetoresistive effect elements to be paired, and the magnetic coding member has at least two magnetic poles formed along the direction of rotation of itself.
摘要翻译：本发明的电位计包括至少一对巨磁阻效应元件，其中要成对的巨磁电阻效应元件以这样的状态形成在基板上，即元件与电磁轴线的方向相互电连接被固定的磁性层相对于彼此相对的180°，并且磁性编码构件可旋转地设置成面对基板上的巨磁阻效应元件，磁编码构件以这样的方式设置，使得磁编码构件的旋转中心通过通过要成对的巨磁阻效应元件的中间位置，并且磁编码构件具有沿其自身旋转方向形成的至少两个磁极。

2. 发明授权

US06329818B1 Magnetic field sensor having giant magnetoresistive effect elements, manufacturing method and apparatus therefor 有权
标题翻译：具有巨磁阻效应元件的磁场传感器，其制造方法和装置
公开(公告)号：US06329818B1
公开(公告)日：2001-12-11
申请号：US09353925
申请日：1999-07-14
申请人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
发明人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
IPC分类号： G01R3309
CPC分类号： B82Y25/00 , G01R33/093 , Y10S428/90
摘要： The present invention is characterized in that a first giant magnetoresistive effect element and a second giant magnetoresistive effect element are provided along a first straight line with the magnetization of the pinned magnetic layer c oriented in a fixed direction, and that a third giant magnetoresistive effect element and a fourth giant magnetoresistive effect element are provided along a second straight line, which is parallel to the first straight line, with the magnetization of the pinned magnetic layer oriented 180° opposite to the directions of magnetization of the pinned magnetic layers in the first and second giant magnetoresistive effect elements.
摘要翻译：本发明的特征在于沿着第一直线提供第一巨磁阻效应元件和第二巨磁阻效应元件，其中固定磁性层c的磁化沿固定方向取向，并且第三巨磁阻效应元件并且沿着与第一直线平行的第二直线设置第四巨磁阻效应元件，其中被钉扎的磁性层的磁化与第一和第二直线的被钉扎的磁性层的磁化方向相反地定向成180° 第二巨磁阻效应元素。

3. 发明授权

US06452382B1 Encoder provided with giant magnetoresistive effect elements 失效
标题翻译：编码器提供巨型磁阻效应元件
公开(公告)号：US06452382B1
公开(公告)日：2002-09-17
申请号：US09352170
申请日：1999-07-12
申请人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
发明人： Ichirou Tokunaga , Seiji Kikuchi , Yoshito Sasaki , Takashi Hatanai
IPC分类号： G01B730
CPC分类号： G01D5/145 , G01B7/30
摘要： The encoder of the present invention includes at least a pair of giant magnetoresistive effect elements, in which the giant magnetoresistive effect elements to be paired are formed on a substrate in a state that the elements are connected mutually electrically with the orientations of magnetization axes of the pinned magnetic layers each facing the same direction in parallel, a magnetic coding member is rotatably supported to face the giant magnetoresistive effect elements on the substrate, and the magnetic coding member has a plurality of magnetic poles formed along the direction of rotation of itself.
摘要翻译：本发明的编码器包括至少一对巨磁阻效应元件，其中要成对的巨磁阻效应元件以这样的状态形成在基片上，即元件与每个面向相同方向并联的固定磁性层，磁性编码构件被可旋转地支撑以面对基板上的巨磁阻效应元件，并且磁编码构件具有沿其自身旋转方向形成的多个磁极。

4. 发明授权

US06036825A Magnetic film forming method 有权
标题翻译：磁膜成型方法
公开(公告)号：US06036825A
公开(公告)日：2000-03-14
申请号：US264839
申请日：1999-03-08
申请人： Eiji Umetsu , Makoto Nakazawa , Yoshito Sasaki , Takashi Hatanai , Akihiro Makino
发明人： Eiji Umetsu , Makoto Nakazawa , Yoshito Sasaki , Takashi Hatanai , Akihiro Makino
IPC分类号： H01F10/10 , H01F41/18 , H01F10/00
CPC分类号： H01F41/183
摘要： In a magnetic film forming method, a plurality of chips formed of Fe.sub.3 O.sub.4 and a plurality of chips formed of HfO.sub.2 are disposed on a target formed of Fe. The composition ratio of a Fe--Hf--O film can be set within a proper range by adjusting the numbers of the up said two kind of chips.
摘要翻译：在磁性膜形成方法中，由Fe 3 O 4形成的多个芯片和由HfO 2形成的多个芯片设置在由Fe形成的靶上。通过调整上述两种芯片的数量，可以将Fe-Hf-O膜的组成比设定在适当的范围内。

5. 发明授权

US06239594B1 Mageto-impedance effect element 失效
标题翻译：磁阻效应元件
公开(公告)号：US06239594B1
公开(公告)日：2001-05-29
申请号：US09401624
申请日：1999-09-22
申请人： Yutaka Naito , Yoshito Sasaki , Takashi Hatanai
发明人： Yutaka Naito , Yoshito Sasaki , Takashi Hatanai
IPC分类号： G01R3302
CPC分类号： G01R33/02
摘要： A magnet layer or antiferromagnetic thin film layer composed of a thin film serving as a bias magnetic field applying member is provided at both ends of a magnetic thin film having a magneto-impedance effect so that a bias magnetic field Hbi is applied to the magnetic thin film layer in parallel with the direction of application of an external magnetic field Hex to the magnetic thin film layer. As the magnetic thin film layer, a soft magnetic material having the composition ColTamHfn, FehRiOl, (Co1-vTv)xMyOzXw, T100-d-e-f-gXdMeZfQg or T100-p-q-f-gSipAlqMeZfQg is used.
摘要翻译：由具有磁阻效应的磁性薄膜的两端设置由用作偏磁场施加部件的薄膜构成的磁铁层或反铁磁性薄膜层，使偏磁场Hbi施加于磁性薄膜薄膜层与施加外部磁场六边形的方向并联，到磁性薄膜层。作为磁性薄膜层，使用具有ColTamHfn，FehRiO1，（Co1-vTv）xMyOzXw，T100-d-e-f-gXdMeZfQg或T100-p-q-f-gSipAlqMeZfQg组成的软磁性材料。

6. 发明授权

US06171716B2 Soft magnetic film, and thin film magnetic head, planer magnetic element, and filter using the soft magnetic film 有权
标题翻译：软磁膜，薄膜磁头，平面磁元件，以及使用软磁膜的滤波器
公开(公告)号：US06171716B2
公开(公告)日：2001-01-09
申请号：US09313924
申请日：1999-05-18
申请人： Yoshito Sasaki , Makoto Nakazawa , Takashi Hatanai , Akihiro Makino
发明人： Yoshito Sasaki , Makoto Nakazawa , Takashi Hatanai , Akihiro Makino
IPC分类号： B32B900
CPC分类号： H01F10/131 , G11B5/3109 , Y10S428/90 , Y10T428/1136
摘要： A soft magnetic film includes Fe as a major constituent; at least one element M selected from the group consisting of Zr, Hr, V, Nb, Ta, W, Mo, and rare earth elements (excluding Sm); at least one element L selected from the group consisting of Ti, Sn, Sm, and Si: and at least one element R selected from the group consisting of O, C, and N. The film has a structure including a mixture of an amorphous phase containing a large amount of the oxide of the element M and a fine crystalline phase containing a large amount of Fe, and the fine crystalline phase further contains the element L. Thin film magnetic heads, planar magnetic elements, and filters using the soft magnetic film are also disclosed.
摘要翻译：软磁性膜包括Fe作为主要成分; 选自由Zr，Hr，V，Nb，Ta，W，Mo和稀土元素（Sm除外）组成的组中的至少一种元素M; 选自由Ti，Sn，Sm和Si组成的组中的至少一种元素L.以及选自O，C和N的至少一种元素R.该膜具有包括非晶态的混合物的结构相含有大量的元素M的氧化物和含有大量Fe的细晶相，微细晶相还含有元素L.薄膜磁头，平面磁性元件和使用软磁性的滤波器电影也被披露。

7. 发明授权

US06171410B2 Hard magnetic alloy, hard magnetic alloy compact, and method for producing the same 失效
标题翻译：硬磁合金，硬磁合金，其制造方法
公开(公告)号：US06171410B2
公开(公告)日：2001-01-09
申请号：US09026853
申请日：1998-02-20
申请人： Akinori Kojima , Akihiro Makino , Takashi Hatanai , Yutaka Yamamoto , Akihisa Inoue
发明人： Akinori Kojima , Akihiro Makino , Takashi Hatanai , Yutaka Yamamoto , Akihisa Inoue
IPC分类号： H01F104
CPC分类号： B82Y25/00 , H01F1/0579
摘要： A hard magnetic alloy in accordance with the present invention is composed of at least element T selected from the group consisting of Fe, Co and Ni, at least one rare earth element R, and boron (B). The hard magnetic alloy has an absolute value of the temperature coefficient of magnetization of 0.15%/° C. or less and a coercive force of 1 kOe, when being used in a shape causing a permeance factor of 2 or more. A hard magnetic alloy compact in accordance with the present invention has a texture, in which at least a part or all of the texture comprises an amorphous phase or fine crystalline phase having an average crystal grain size of 100 nm or less, is subjected to crystallization or grain growth under stress, such that a mixed phase composed of a soft magnetic or semi-hard magnetic phase and a hard magnetic phase is formed in the texture, and anisotropy is imparted to the crystal axis of the hard magnetic phase.
摘要翻译：根据本发明的硬磁合金由至少选自Fe，Co和Ni，至少一种稀土元素R和硼（B）的元素T组成。当使用导磁系数为2以上的形状时，硬磁合金的磁化温度的绝对值为0.15％/℃以下，矫顽力为1kOe。根据本发明的硬磁合金压块具有其中至少部分或全部组织包含平均晶粒尺寸为100nm以下的非晶相或细结晶相的织构，进行结晶化或在应力下的晶粒生长，使得在织构中形成由软磁性或半硬磁性相和硬磁性相组成的混合相，并且赋予硬磁相的晶轴各向异性。

8. 发明授权

US6034450A Stepping motor and method of manufacturing hard magnetic alloy therefor 失效
标题翻译：步进电机及制造硬磁合金的方法
公开(公告)号：US6034450A
公开(公告)日：2000-03-07
申请号：US111991
申请日：1998-07-08
申请人： Akinori Kojima , Akihiro Makino , Takashi Hatanai , Yutaka Yamamoto , Akihisa Inoue
发明人： Akinori Kojima , Akihiro Makino , Takashi Hatanai , Yutaka Yamamoto , Akihisa Inoue
IPC分类号： C22C38/00 , H01F1/057 , H02K1/02 , H02K15/02 , H02K37/18 , H02K37/00
CPC分类号： B82Y25/00 , H01F1/0571 , H01F1/0579 , H02K1/02 , H02K37/18
摘要： In a stepping motor having a stator provided with an electromagnet and a rotor composed of a hard magnetic alloy, the hard magnetic alloy comprises at least one element T of Fe and Co, at least one element R of rare earth elements and B, has a remanence ratio of at least 0.7, remanent magnetization (Ir) of at least 120 emu/g and coercive force (iHc) of at least 1 kOe and includes a fine crystalline phase having an average crystal grain size of 100 nm or less as a main phase. The hard magnetic alloy is solidified and compacted by making use of a softening phenomenon which arises when the amorphous phase contained in the structure of the hard magnetic alloy is crystallized. A method of manufacturing the hard magnetic alloy used to the stepping motor is also disclosed.
摘要翻译：在具有设置有电磁体的定子和由硬磁合金构成的转子的步进电机中，硬磁合金包括至少一种Fe和Co的元素T，稀土元素和B的至少一个元素R具有至少为0.7的剩磁比（Ir）至少为120emu / g，矫顽磁力（iHc）为至少1kOe，并且包括平均晶粒尺寸为100nm以下的细晶相为主相。通过利用在硬质合金的结构中包含的非晶相结晶时产生的软化现象，硬磁性合金被固化和压实。还公开了用于步进电动机的硬磁合金的制造方法。

9. 发明授权

US4768120A Complex magnetic head having non-magnetic center core 失效
标题翻译：具有非磁性中心芯的复杂磁头
公开(公告)号：US4768120A
公开(公告)日：1988-08-30
申请号：US81307
申请日：1987-08-03
申请人： Takashi Hatanai
发明人： Takashi Hatanai
IPC分类号： G11B5/265 , G11B5/12 , G11B5/251 , G11B5/27
CPC分类号： G11B5/2655 , G11B5/265
摘要： A complex magnetic head includes a center core made from a non-magnetic material, interposing a magnetic film between the center core and a recording and reproducing core at one side of the center core and another magnetic film between the center core and an erasing core at the other side of the center core, so as to alleviate a cross-feed phenomenum between the recording and reproducing core and the erasing core through the center core.
摘要翻译：一种复杂的磁头包括由非磁性材料制成的中心芯，在中心芯之间插入磁膜，在中心芯的一侧插入记录和再现磁芯，在中心芯和擦除芯之间插入另一磁膜中心芯的另一侧，以便减轻记录和再现芯与穿过中心芯的擦除芯之间的交叉馈送现象。

10. 发明授权

US4638387A Composition for sliding contact part of recording/reproducing apparatus 失效
标题翻译：记录/再现装置的滑动接触部分的组成
公开(公告)号：US4638387A
公开(公告)日：1987-01-20
申请号：US558328
申请日：1983-12-05
申请人： Koichi Mukasa , Takashi Hatanai , Keishi Nakashima , Kazumasa Onishi
发明人： Koichi Mukasa , Takashi Hatanai , Keishi Nakashima , Kazumasa Onishi
IPC分类号： G11B5/255 , G11B5/187 , G11B15/60
CPC分类号： G11B5/255
摘要： A recording/reproducing apparatus is disclosed, characterized in that a sliding contact part coming into sliding contact with a magnetic recording medium is provided at the upstream side, as determined by the running direction of the magnetic recording medium, of a magnetic head core, and at least a portion of the sliding contact part coming into sliding contact with the magnetic recording medium is made of a composite material comprising a carbonaceous material and a mechanical strength-increasing material. This is applicable to a magnetic head, an erasing head, a pad for a magnetic head, and a running guide member.
摘要翻译：公开了一种记录/再现装置，其特征在于，与磁记录介质滑动接触的滑动接触部分设置在由磁记录介质的行进方向，磁头磁芯确定的上游侧，以及与磁记录介质滑动接触的滑动接触部分的至少一部分由包含碳质材料和机械强度增加材料的复合材料制成。这适用于磁头，擦除头，用于磁头的垫和行进引导构件。

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