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1. 发明授权

US5236735A Method of producing a thin film magnetic head 失效
标题翻译：薄膜磁头的制造方法
公开(公告)号：US5236735A
公开(公告)日：1993-08-17
申请号：US715012
申请日：1991-06-13
申请人： Makoto Yoshida , Yuzuru Iwai , Noboru Yamanaka , Jun Shouzi , Tsutomu Koyanagi , Mikio Matsuzaki , Nobuya Ohyama , Yoshiaki Tanaka
发明人： Makoto Yoshida , Yuzuru Iwai , Noboru Yamanaka , Jun Shouzi , Tsutomu Koyanagi , Mikio Matsuzaki , Nobuya Ohyama , Yoshiaki Tanaka
IPC分类号： G11B5/31
CPC分类号： G11B5/3106 , G11B5/3113 , G11B5/3163
摘要： A method of producing a thin film magnetic head comprises forming a thin film magnetic circuit including a magnetic film and a conductive coil film on a substrate, and heating the thin film magnetic circuit at a temperature in a range of from 270.degree. C. to 400.degree. C. before forming a protective layer covering the thin film magnetic circuit.
摘要翻译：一种制造薄膜磁头的方法包括在基板上形成包括磁性膜和导电线圈膜的薄膜磁路，并在270℃至400℃的温度范围内加热薄膜磁路在形成覆盖薄膜磁路的保护层之前。

2. 发明授权

US5768065A Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：US5768065A
公开(公告)日：1998-06-16
申请号：US252526
申请日：1994-06-01
申请人： Noriyuki Ito , Yuzuru Iwai , Mikio Matsuzaki , Junichi Sato
发明人： Noriyuki Ito , Yuzuru Iwai , Mikio Matsuzaki , Junichi Sato
IPC分类号： G11B5/31 , G11B5/127 , G11B5/39
CPC分类号： G11B5/3903 , G11B5/1278 , G11B5/3906 , G11B5/3967
摘要： A thin film magnetic head having a slider and a magnetic transducing element for reading, wherein the slider is provided with an air bearing surface; the magnetic transducing element for reading includes conductor films, a magnetoresistive element and magnetic shield films and is provided on the slider; the conductor films are composed of two conductor films contiguously arranged interposing a first spacing and a second spacing, the first spacing being disposed on the side of the air bearing surface specifying a track width, the second spacing being disposed on the backward side of the first spacing; the magnetoresistive element is connected between the first and the second conductor films crossing the first spacing; the magnetic shield films include a lower magnetic shield film and an upper shield film, the lower magnetic shield film being located on the lower side of the conductor films and the magnetoresistive element and the upper magnetic shield film being located on the upper side of the conductor films and the magnetoresistive element; and the conductor films are arranged so that a size of the second spacing is equal to or less than 10 .mu.m.
摘要翻译：一种具有滑块和用于读取的磁转换元件的薄膜磁头，其中滑块设有空气支承面; 用于读取的磁转换元件包括导体膜，磁阻元件和磁屏蔽膜，并设置在滑块上; 所述导体膜由连续排列成第一间隔和第二间隔的两个导体膜构成，所述第一间隔设置在所述空气轴承表面侧，规定轨道宽度，所述第二间隔设置在所述第一间隔间距; 磁阻元件连接在与第一间隔交叉的第一和第二导体膜之间; 磁屏蔽膜包括下磁屏蔽膜和上屏蔽膜，下磁屏蔽膜位于导体膜的下侧，磁阻元件和上磁屏蔽膜位于导体的上侧膜和磁阻元件; 并且导体膜被布置成使得第二间隔的尺寸等于或小于10μm。

3. 发明授权

US08358127B2 Apparatus for measuring magnetic field of microwave-assisted head 有权
标题翻译：用于测量微波辅助头磁场的装置
公开(公告)号：US08358127B2
公开(公告)日：2013-01-22
申请号：US12755803
申请日：2010-04-07
申请人： Isamu Sato , Hiroshi Ikeda , Mikio Matsuzaki , Tetsuya Roppongi , Noboru Yamanaka , Tsutomu Aoyama
发明人： Isamu Sato , Hiroshi Ikeda , Mikio Matsuzaki , Tetsuya Roppongi , Noboru Yamanaka , Tsutomu Aoyama
IPC分类号： G01R33/02
CPC分类号： G11B5/455 , G01R33/098 , G01R33/1284
摘要： A measuring circuit system in a magnetic field measuring apparatus of the invention has an amplifier and a band-pass filter connected in sequence on an output terminal side of the TMR element, the band-pass filter is a narrow-range band-pass filter such that a peak pass frequency of the filter that is a center is a basic frequency selected from a range of 10 to 40 GHz and a band width centered around the basic frequency is a narrow range of ±0.5 to ±4 GHz; and with the measuring circuit system, an SIN ratio (SNR) of 3 dB or greater is obtained, the SNR being defined by a ratio of an amplitude S of a high-frequency generated signal induced by the TMR element to a total noise N that is a sum of a head noise generated by the TMR element and a circuit noise generated by the amplifier. With such a configuration, an in-plane high-frequency magnetic field generated by a microwave-assisted magnetic head is reliably and precisely measured.
摘要翻译：本发明的磁场测量装置中的测量电路系统具有在TMR元件的输出端侧依次连接的放大器和带通滤波器，带通滤波器是窄范围带通滤波器，作为中心的滤波器的峰值通过频率是从10〜40GHz的范围选择的基本频率，以基本频率为中心的带宽为±0.5〜±4GHz的窄范围; 并且利用测量电路系统，获得3dB或更大的SIN比（SNR），SNR由TMR元件引起的高频产生信号的振幅S与总噪声N的比值定义，是由TMR元件产生的头噪声和由放大器产生的电路噪声的总和。通过这样的结构，可以可靠且精确地测量由微波辅助磁头产生的面内高频磁场。

4. 发明申请

US20110248710A1 APPARATUS FOR MEASURING MAGNETIC FIELD OF MICROWAVE-ASSISTED HEAD 有权
标题翻译：用于测量微波辅助磁头的磁场的装置
公开(公告)号：US20110248710A1
公开(公告)日：2011-10-13
申请号：US12755803
申请日：2010-04-07
申请人： Isamu SATO , Hiroshi Ikeda , Mikio Matsuzaki , Tetsuya Roppongi , Noboru Yamanaka , Tsutomu Aoyama
发明人： Isamu SATO , Hiroshi Ikeda , Mikio Matsuzaki , Tetsuya Roppongi , Noboru Yamanaka , Tsutomu Aoyama
IPC分类号： G01R33/02
CPC分类号： G11B5/455 , G01R33/098 , G01R33/1284
摘要： A measuring circuit system in a magnetic field measuring apparatus of the invention has an amplifier and a band-pass filter connected in sequence on an output terminal side of the TMR element, the band-pass filter is a narrow-range band-pass filter such that a peak pass frequency of the filter that is a center is a basic frequency selected from a range of 10 to 40 GHz and a band width centered around the basic frequency is a narrow range of ±0.5 to ±4 GHz; and with the measuring circuit system, an SIN ratio (SNR) of 3 dB or greater is obtained, the SNR being defined by a ratio of an amplitude S of a high-frequency generated signal induced by the TMR element to a total noise N that is a sum of a head noise generated by the TMR element and a circuit noise generated by the amplifier. With such a configuration, an in-plane high-frequency magnetic field generated by a microwave-assisted magnetic head is reliably and precisely measured.
摘要翻译：本发明的磁场测量装置中的测量电路系统具有在TMR元件的输出端侧依次连接的放大器和带通滤波器，带通滤波器是窄范围带通滤波器，作为中心的滤波器的峰值通过频率是从10〜40GHz的范围选择的基本频率，以基本频率为中心的频带宽度为±0.5〜±4GHz的窄范围; 并且利用测量电路系统，获得3dB或更大的SIN比（SNR），SNR由TMR元件引起的高频产生信号的振幅S与总噪声N的比值定义，是由TMR元件产生的头噪声和由放大器产生的电路噪声的总和。通过这样的结构，可以可靠且精确地测量由微波辅助磁头产生的面内高频磁场。

5. 发明授权

US5991110A Thin film magnetic head and magnetic recording and reproducing apparatus 有权
标题翻译：薄膜磁头和磁记录和重放装置
公开(公告)号：US5991110A
公开(公告)日：1999-11-23
申请号：US159562
申请日：1998-09-24
申请人： Masanori Sakai , Makoto Yoshida , Kazumasa Fukuda , Mikio Matsuzaki
发明人： Masanori Sakai , Makoto Yoshida , Kazumasa Fukuda , Mikio Matsuzaki
IPC分类号： G11B5/31 , G11B5/09 , G11B5/187 , G11B5/48 , G11B5/60 , G11B5/035
CPC分类号： G11B5/09 , G11B5/1872 , G11B5/3106 , G11B5/3116 , G11B5/4886 , G11B5/6005
摘要： In the thin film magnetic transducer element, the front end portions of the upper pole piece and the lower pole piece are partially removed in such a manner that they align non parallel to the gap film on the opposite sides of the gap film. The condition .DELTA.P1>.DELTA.P2 is satisfied when the difference between the maximum pole length P1max and the minimum pole length P1min of the lower pole piece is .DELTA.P1 and the difference between the maximum pole length P2max and the minimum pole length P2min of the upper pole piece is .DELTA.P2. The sub pulse is reduced and so the partial response method can be employed.
摘要翻译：在薄膜磁换能器元件中，上极片和下极片的前端部分被部分地移除，使得它们在间隙膜的相对侧上与间隙膜不平行地对准。当下极点的最大极长度P1max和最小极长度P1min之间的差为DELTA P1，并且上极的最大极长度P2max与最小极长度P2min之间的差值满足条件DELTA P1> DELTA P2 极片是DELTA P2。子脉冲减少，因此可以采用部分响应方法。

6. 发明授权

US5844749A Thin film magnetic head with an induction type magnetic transducer for suppressing sub-pulses 失效
标题翻译：具有用于抑制子脉冲的感应式磁换能器的薄膜磁头
公开(公告)号：US5844749A
公开(公告)日：1998-12-01
申请号：US774317
申请日：1996-12-24
申请人： Masanori Sakai , Makoto Yoshida , Kazumasa Fukuda , Mikio Matsuzaki
发明人： Masanori Sakai , Makoto Yoshida , Kazumasa Fukuda , Mikio Matsuzaki
IPC分类号： G11B5/31 , G11B5/09 , G11B5/187 , G11B5/48 , G11B5/60
CPC分类号： G11B5/09 , G11B5/1872 , G11B5/3106 , G11B5/3116 , G11B5/4886 , G11B5/6005
摘要： In the thin film magnetic transducer element, the front end portions of the upper pole piece and the lower pole piece are partially removed in such a manner that they align non parallel to the gap film on he opposite sides of the gap film. The condition .DELTA.P1>.DELTA.P2 is satisfied when the difference between the maximum pole length P1max and the minimum pole length P1min of the lower pole piece is .DELTA.P1 and the difference between the maximum pole length P2max and the minimum pole length P2min of the upper pole piece is .DELTA.P2. The sub pulse is reduced and so the partial response method can be employed.
摘要翻译：在薄膜磁换能器元件中，上极片和下极片的前端部分被部分地移除，使得它们与间隙膜的相对侧上的间隙膜不平行地对准。当下极点的最大极长度P1max和最小极长度P1min之间的差为DELTA P1，并且上极的最大极长度P2max与最小极长度P2min之间的差值满足条件DELTA P1> DELTA P2 极片是DELTA P2。子脉冲减少，因此可以采用部分响应方法。

7. 发明授权

US07920357B2 Magnetic recording method using ferromagnetic resonance and thin-film magnetic head for using the method 有权
标题翻译：使用铁磁共振和薄膜磁头的磁记录方法
公开(公告)号：US07920357B2
公开(公告)日：2011-04-05
申请号：US11907095
申请日：2007-10-09
申请人： Isamu Sato , Tetsuya Roppongi , Yuichi Watabe , Norikazu Ota , Hiroshi Ikeda , Mikio Matsuzaki
发明人： Isamu Sato , Tetsuya Roppongi , Yuichi Watabe , Norikazu Ota , Hiroshi Ikeda , Mikio Matsuzaki
IPC分类号： G11B5/17
CPC分类号： G11B5/3123 , B82Y10/00 , G11B5/1278 , G11B5/743 , G11B2005/0005
摘要： Provided is a thin-film magnetic head capable of writing data with high accuracy on a magnetic recording medium having high coercive force without heating. The head comprises an electromagnetic coil element comprising: a main magnetic pole; an auxiliary magnetic pole; and a write coil formed so as to pass through at least between the main magnetic pole and the auxiliary magnetic pole, for generating the write magnetic field. In this head, a part of the write coil has a layered structure of: a resonance coil layer for generating a resonance magnetic field having ferromagnetic resonance frequency of a magnetic recording layer of a magnetic recording medium or having a frequency in the vicinity thereof; and a write coil layer. And further, the resonance coil layer and the write coil layer sandwich an insulating layer therebetween.
摘要翻译：提供了一种能够在没有加热的情况下在具有高矫顽力的磁记录介质上高精度地写入数据的薄膜磁头。头部包括电磁线圈元件，包括：主磁极; 辅助磁极; 以及形成为至少在主磁极和辅助磁极之间通过的用于产生写入磁场的写入线圈。在该磁头中，写入线圈的一部分具有以下结构：谐振线圈层，用于产生具有磁记录介质的磁记录层的铁磁共振频率或其附近频率的共振磁场; 和写入线圈层。此外，共振线圈层和写入线圈层之间夹有绝缘层。

8. 发明授权

US06680820B2 Method of maintaining a constant flying height of a magnetic head and a magnetic disk drive utilized therefor 失效
标题翻译：保持磁头恒定飞行高度的方法和用于此的磁盘驱动器
公开(公告)号：US06680820B2
公开(公告)日：2004-01-20
申请号：US10158914
申请日：2002-06-03
申请人： Mikio Matsuzaki , Kazumasa Fukuda , Takamitsu Tsuna
发明人： Mikio Matsuzaki , Kazumasa Fukuda , Takamitsu Tsuna
IPC分类号： G11B560
CPC分类号： G11B5/6005
摘要： A method of maintaining a constant flying height of a magnetic head: adapted to maintain a flying height of a magnetic head on a magnetic disk substantially constant irrespective of a change of a skew angle, utilizing a device comprising a magnetic disk, a positioning device, a head supporting device and a magnetic head; said positioning device supporting one end of said head supporting device and rotating the head supporting device on a first plane placed on a second plane of said magnetic disk within a predetermined skew angle range; the head supporting device supporting said magnetic head at the other end thereof; the magnetic head being attached with reading/writing elements at an air discharge end of a slider having flying planes on a side of a third plane thereof opposing the magnetic disk; a thickness of said slider from each of the flying planes to an opposite surface on the reverse side thereof being 0.65 mm or less; a length in a first direction of air discharge thereof being 3 mm or less, and a width in a second direction orthogonal to the first direction of air discharge thereof being 2.5 mm or less; wherein a change of the flying height of the magnetic head on the magnetic disk is 0.02 &mgr;m or less, when the skew angle is changed in a range of −20 to 20 degree.
摘要翻译：一种保持磁头恒定飞行高度的方法：适于使磁头在磁盘上的飞行高度基本上恒定，而与斜角的变化无关，利用包括磁盘，定位装置，头部支撑装置和磁头; 所述定位装置支撑所述头部支撑装置的一端并将头部支撑装置旋转在预定的倾斜角度范围内的位于所述磁盘的第二平面上的第一平面上; 头支撑装置在其另一端支撑所述磁头; 所述磁头在与所述磁盘相对的第三平面的一侧具有飞平面的滑块的排气端处附接有读/写元件; 所述滑块从每个飞行平面到其相反侧的相对表面的厚度为0.65mm以下; 空气排出的第一方向的长度为3mm以下，与第一空气排出方向正交的第二方向的宽度为2.5mm以下; 其中，当所述倾斜角度在-20至20度的范围内变化时，所述磁盘上的磁头的飞行高度的变化为0.02μm或更小。

9. 发明授权

US5238089A Squeak prevention for disc brake 失效
标题翻译：煞车防止吱吱声
公开(公告)号：US5238089A
公开(公告)日：1993-08-24
申请号：US921608
申请日：1992-08-03
申请人： Mikio Matsuzaki , Toru Yoshino , Toshitaka Izumihara
发明人： Mikio Matsuzaki , Toru Yoshino , Toshitaka Izumihara
IPC分类号： F16D65/00 , F16D65/12 , F16D65/847 , F16D69/00
CPC分类号： F16D65/847 , F16D65/0006 , F16D65/12 , F16D2065/1308 , F16D2065/1312 , F16D2065/1328 , F16D2069/004 , F16D65/121
摘要： A device for preventing the squeak in a disc brake apparatus in which friction pads comprised of a semi-metallic or a non-asbestos material are pushed onto a disc rotor to perform braking is characterized in that the disc rotor is circumferentially divided by the use of slits or couplings so that the frequency of second-order resonance in the longitudinal vibration of the rotor is higher than 15 kHz and thus inaudible to humans.
摘要翻译：一种用于防止在其中将由半金属或非石棉材料构成的摩擦垫被推到盘形转子上以进行制动的盘式制动装置中的吱吱声的装置，其特征在于，通过使用狭缝或联轴器，使得转子的纵向振动中的二次共振的频率高于15kHz，因此对人不可听见。

10. 发明授权

US4691810A Disc brake with pad pressed only at ends where antinodes of vibration occur 失效
标题翻译：碟形制动器只能在发生振动波动的端部处按压
公开(公告)号：US4691810A
公开(公告)日：1987-09-08
申请号：US906658
申请日：1986-09-12
申请人： Mikio Matsuzaki
发明人： Mikio Matsuzaki
IPC分类号： F16D55/224 , F16D55/22 , F16D65/00 , F16D65/092 , F16D65/38
CPC分类号： F16D65/092 , F16D55/22 , F16D65/0006
摘要： A pad is engaged by a rotor by hydraulic pressure whereas another pad is engaged by the rotor on the other side thereof by a pair of pawls of the caliper under reaction. The reaction of the caliper is imparted to the other pad in a plane where a pair of the pawls of the caliper are opposed to the other pad and in a position at the marginal edges of the other pad, thereby minimizing squeal when the brake is applied.
摘要翻译：垫片由转子通过液压接合，而另一个垫片由另一侧的转子通过卡爪的一对棘爪在反应下接合。卡钳的反应在其中一对卡爪的爪与另一个垫相对的平面中以及在另一个垫的边缘处的位置中被赋予另一个垫，由此在施加制动时使最小化的尖叫。

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