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41. 发明授权

US06512655B1 Magnetic head with sealing glass composition 失效
标题翻译：磁头用稀土元素保护密封玻璃
公开(公告)号：US06512655B1
公开(公告)日：2003-01-28
申请号：US09626084
申请日：2000-07-26
申请人： Hiroki Yamamoto , Takashi Naito , Takashi Namekawa , Ken Takahashi , Noriyuki Kumasaka , Kenkichi Inada
发明人： Hiroki Yamamoto , Takashi Naito , Takashi Namekawa , Ken Takahashi , Noriyuki Kumasaka , Kenkichi Inada
IPC分类号： G11B5235
CPC分类号： C03C14/004 , C03C8/24 , C03C8/245
摘要： Provided are a glass such as a sealing glass which contains a rare earth element and crystalline particles, a structure made by sealing with said sealing glass, a magnetic head made by bonding using said sealing glass, and a magnetic recording and reproducing apparatus on which said magnetic heads are mounted. According to the glass of the present invention, magnetic heads, and other structures can be bonded at low temperatures and a high bond strength can be attained, and thus, magnetic heads having high-speed sliding properties and magnetic recording and reproducing apparatuses of high reliability can be obtained. The glass can be also used for heat resistant parts such as a pannel glass for a cathode-ray tube and the like.
摘要翻译：提供一种玻璃，例如包含稀土元素和结晶颗粒的密封玻璃，通过用所述密封玻璃密封制成的结构，通过使用所述密封玻璃的接合而制成的磁头，以及磁性记录和再现装置，其上安装磁头。根据本发明的玻璃，可以在低温下粘接磁头和其它结构，并且可以获得高粘合强度，因此，具有高速滑动性能的磁头和具有高可靠性的磁记录和重放装置可以获得。玻璃也可以用于阴极射线管等用于玻璃的耐热部件。

42. 发明授权

US06369981B2 Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit 失效
公开(公告)号：US06369981B2
公开(公告)日：2002-04-09
申请号：US09975265
申请日：2001-10-12
申请人： Katsutoshi Nii , Kenji Tomida , Hiroshi Nishida , Kouki Uefune , Yuuichi Yanagase , Masaru Muranishi , Takashi Kouno , Kazuhiko Kawakami , Hisanobu Kanamaru , Noriyuki Kumasaka
发明人： Katsutoshi Nii , Kenji Tomida , Hiroshi Nishida , Kouki Uefune , Yuuichi Yanagase , Masaru Muranishi , Takashi Kouno , Kazuhiko Kawakami , Hisanobu Kanamaru , Noriyuki Kumasaka
IPC分类号： G11B1702
CPC分类号： H02K5/1675 , F16C17/028 , F16C33/1075 , F16C2370/12 , G11B19/2018
摘要： A disk drive unit includes a rotary member, which has a spindle, and has an information-recording disk fixedly mounted thereon, and a bearing unit rotatably supporting the spindle. The bearing unit includes a radial bearing device, provided in opposed relation to an outer peripheral surface of the spindle, and a thrust bearing device provided in opposed relation to a distal end surface of the spindle. The radial bearing device has a concentric arc-shaped bearing surface, which is concentric with the circular outer periphery of the spindle, and a non-concentric arc-shaped bearing surface which is non-concentric with the circular outer periphery of the spindle. The disk drive unit further includes a motor for imparting a rotational force to the spindle, and a lubricating fluid filled in the bearing unit.

43. 发明授权

US06339676B1 Video signal recording and reproducing apparatus compatible with analog and digital video signal recording and reproducing 失效
标题翻译：与模拟和数字视频信号记录和再现兼容的视频信号记录和再现设备
公开(公告)号：US06339676B1
公开(公告)日：2002-01-15
申请号：US09551911
申请日：2000-04-19
申请人： Nobutaka Amada , Hitoaki Owashi , Takaharu Noguchi , Noriyuki Kumasaka , Hideo Zama
发明人： Nobutaka Amada , Hitoaki Owashi , Takaharu Noguchi , Noriyuki Kumasaka , Hideo Zama
IPC分类号： H04N5782
CPC分类号： H04N5/78213 , G11B5/0086 , G11B5/00878 , G11B15/02 , G11B15/125 , G11B15/1875 , G11B15/4671 , G11B15/4672 , G11B15/4731 , H04N5/78266 , H04N9/7921 , H04N9/8042 , H04N9/83
摘要： An apparatus for recording and reproducing a digital video signal on and from a common recording medium by using the head configuration common to the conventional one while maintaining exchangeability with the current analog VTR. An analog video and audio signals are recorded and reproduced on and from an video track and an underlying deep-layer track, respectively, by means of magnetic heads and magnetic heads. On the other hand, a digital video and audio signal is recorded and reproduced on and from two adjacent tracks by means of the magnetic heads for analog audio recording. During reproduction, an identification signal generating circuit generates an identification signal for discriminating a recorded signal, and a control signal is PWM modulated with the identification signal and recorded on a control track by means of a magnetic head.
摘要翻译：一种用于通过使用与常规记录介质共同的头部配置，同时保持与当前模拟VTR的可交换性来在普通记录介质上记录和再现数字视频信号的装置。模拟视频和音频信号通过磁头和磁头分别在视频轨道和下层深层磁道上记录和再现。另一方面，通过用于模拟音频记录的磁头，数字视频和音频信号被记录和再现在两个相邻轨道上。在再现期间，识别信号发生电路产生用于识别记录信号的识别信号，并且利用识别信号对控制信号进行PWM调制，并通过磁头记录在控制轨道上。

44. 发明授权

US5879798A Heat resistant, high saturation magnetic flux density film 失效
标题翻译：耐热，高饱和磁通密度膜
公开(公告)号：US5879798A
公开(公告)日：1999-03-09
申请号：US534872
申请日：1990-06-08
申请人： Toshio Kobayashi , Ryoichi Nakatani , Hitoshi Nakamura , Noriyuki Kumasaka
发明人： Toshio Kobayashi , Ryoichi Nakatani , Hitoshi Nakamura , Noriyuki Kumasaka
IPC分类号： C22C19/00 , C22C38/00 , G11B5/127 , G11B5/133 , G11B5/187 , H01F10/00 , H01F10/12 , H01F10/32 , G11B5/66
CPC分类号： B82Y25/00 , G11B5/133 , G11B5/1878 , H01F10/007 , H01F10/3254 , Y10S428/90 , Y10S428/92 , Y10T428/115 , Y10T428/26 , Y10T428/265 , Y10T428/2991
摘要： A heat resistant, high saturation magnetic flux density film, comprising, a plurality of crystal grains of ferromagnetic metal, and carbide or boride positioned around each of plurality of crystal grains.
摘要翻译：一种耐热，高饱和磁通密度膜，包括多个强磁性金属晶粒和位于多个晶粒周围的碳化物或硼化物。

45. 发明授权

US5157569A Thin film magnetic head 失效
标题翻译：薄膜磁头
公开(公告)号：US5157569A
公开(公告)日：1992-10-20
申请号：US704226
申请日：1991-05-22
申请人： Noriyuki Kumasaka , Kenkichi Inada , Ikuo Shinta , Sigeo Imai , Souzou Sasajima
发明人： Noriyuki Kumasaka , Kenkichi Inada , Ikuo Shinta , Sigeo Imai , Souzou Sasajima
IPC分类号： G11B5/127 , G11B5/187
CPC分类号： G11B5/1871
摘要： A magnetic head having a pair of nonmagnetic core base bodies coupled to each other in such a manner that amorphous magnetic alloy films are applied to their abutment surfaces and a gap layer is interposed in a magnetic gap of the head, the films applied to the bodies being made abut against each other at their end edge surfaces each of which has a width larger than its film thickness, and at least one of the bodies having a coil winding groove formed at a portion at which the bodies are coupled to each other. Surface layer portions of each of the bodies, with which a magnetic tape comes into contact, are removed along a direction in which the magnetic tape moves, to a depth which is substantially the same as the depth of the gap while leaving a widthwise portion, which is the same as the track width defined by the width of contact between the two end edge surfaces of the films, at the widthwise center of the bodies, two recesses which are formed by removing the surface layer portions being filled with 2MgO--SiO.sub.2 or MgO--SiO.sub.2, and another amorphous magnetic alloy film is applied to the inner surface of the coil winding groove which defines a coil winding aperture and the latter film is integrally continued to the former films.
摘要翻译：一种具有一对非磁性芯基体的磁头，其以非磁性合金膜施加到其邻接表面并且将间隙层插入到磁头的磁隙中的方式彼此连接，所述膜施加到主体在它们的端部边缘表面彼此抵接，每个端部边缘具有大于其膜厚度的宽度，并且至少一个主体具有形成在主体彼此连接的部分处的线圈缠绕槽。磁带接触的每个主体的表面层部分沿着磁带移动的方向被移除到与间隙的深度基本相同的深度，同时留下宽度方向部分，其与由膜的两个端边缘表面之间的接触宽度限定的轨道宽度相同，在主体的宽度方向中心处，通过去除填充有2MgO-SiO 2的表面层部分形成的两个凹部 MgO-SiO 2和另一种非晶磁性合金膜施加到限定线圈卷绕孔的线圈卷绕槽的内表面，并且后者的膜与前一个膜一体地连续。

46. 发明授权

US4450494A Magnetic head 失效
标题翻译：磁头
公开(公告)号：US4450494A
公开(公告)日：1984-05-22
申请号：US304612
申请日：1981-09-22
申请人： Hideo Fujiwara , Mitsuhiro Kudo , Teizo Tamura , Nobuyuki Sugishita , Yoshihiro Shiroishi , Takeshi Kimura , Kiminari Shinagawa , Noriyuki Kumasaka
发明人： Hideo Fujiwara , Mitsuhiro Kudo , Teizo Tamura , Nobuyuki Sugishita , Yoshihiro Shiroishi , Takeshi Kimura , Kiminari Shinagawa , Noriyuki Kumasaka
IPC分类号： G11B5/127 , G11B5/133 , G11B5/187 , G11B5/193 , G11B5/23 , G11B5/245 , G11B5/12 , G11B5/22
CPC分类号： G11B5/127 , G11B5/133 , G11B5/193
摘要： A magnetic head having a magnetic core formed by facing a pair of magnetic substances through a working gap at a head section confronting a magnetic recording medium is disclosed in which at least one of the magnetic substances has magnetic anisotropy, and an angle .alpha. (in a C-shaped core half) and/or an angle .alpha.' (in an I-shaped core half) between a core surface confronting the magnetic recording medium and a direction having a maximum magnetic permeability in a main magnetic circuit plane of the magnetic substance having magnetic anisotropy is made larger than an orientation angle of the above direction for making minimum the magnetic reluctance of the main magnetic circuit of the magnetic core by .beta. (for .alpha.) and/or .beta.' (for .alpha.') to improve the recording/reproducing characteristic of the magnetic head, where .beta. is given by a formula ##EQU1## is equal to or less than 25.degree., D indicates a depth of the working gap, L* indicates an effective length of an oblique part for forming the working gap, and min [a, b] indicates the smaller of a and b.
摘要翻译：公开了一种磁头，其具有通过面对磁记录介质的磁头部分处的工作间隙面对一对磁性物质形成的磁芯，其中至少一个磁性物质具有磁各向异性，并且角度α（在 C形芯部一半）和/或与磁记录介质相对的芯面之间的角度α'（I形磁芯半部）和磁性物质的主磁路平面中具有最大导磁率的方向使磁各向异性大于上述方向的取向角，以使磁芯的主磁路的磁阻为β（对于α）和/或β'（对于α'）来改善记录/再现的磁阻磁头的特性，其中β由公式给出等于或小于25°，D表示工作间隙的深度，L *表示斜度的有效长度 t形成工作间隙，min [a，b]表示a和b中较小的一个。

47. 发明授权

US08348721B2 Method of producing glass substrate for perpendicular magnetic recording disk 有权
标题翻译：用于垂直磁记录盘的玻璃基板的制造方法
公开(公告)号：US08348721B2
公开(公告)日：2013-01-08
申请号：US12394461
申请日：2009-02-27
申请人： Yuji Horie , Tatsuya Tanifuji , Noriyuki Kumasaka
发明人： Yuji Horie , Tatsuya Tanifuji , Noriyuki Kumasaka
IPC分类号： B24B7/22
CPC分类号： G11B5/7315 , B24B21/04 , B24B37/04 , C03C19/00 , C03C21/002 , C03C2204/08 , G11B5/8404
摘要： A glass substrate for perpendicular magnetic recording, having a surface with an average surface roughness of 2.0Å or less and surface height variations of 1Å or less with wavelengths in the range of 0.05 mm-0.5 mm in both radial and circumferential directions, is produced by rotating a glass substrate, supplying polishing slurry containing a specified amount of abrading particles of artificial diamond on its surface, pressing a polishing tape on the surface and causing this polishing tape to travel in a direction opposite to the direction of rotation of the glass substrate.
摘要翻译：用于垂直磁记录的玻璃基板，其具有平均表面粗糙度为2.0或更小的表面，以及在径向和圆周方向上的波长在0.05mm-0.5mm范围内的表面高度变化为1或更小的表面，其由旋转玻璃基板，在其表面上供给含有规定量的人造金刚石研磨颗粒的研磨浆料，将研磨带压在表面上，使该研磨带沿与玻璃基板的旋转方向相反的方向行进。

48. 发明申请

US20100160170A1 METHOD FOR POLISHING TAPE-SHAPED SUBSTRATE FOR OXIDE SUPERCONDUCTOR, OXIDE SUPERCONDUCTOR, AND BASE MATERIAL FOR OXIDE SUPERCONDUCTOR 有权
标题翻译：用于氧化物超导体的氧化物超导体，氧化物超导体和基体材料的带状基板的抛光方法
公开(公告)号：US20100160170A1
公开(公告)日：2010-06-24
申请号：US12438601
申请日：2007-08-24
申请人： Sanaki Horimoto , Takuya Nagamine , Takehiro Watanabe , Fumi Murokawa , Yuji Horie , Noriyuki Kumasaka , Masahiro Hosoi
发明人： Sanaki Horimoto , Takuya Nagamine , Takehiro Watanabe , Fumi Murokawa , Yuji Horie , Noriyuki Kumasaka , Masahiro Hosoi
IPC分类号： H01B12/02 , B24B7/13 , B24B21/00 , H01L39/24
CPC分类号： B24B7/13 , B24B21/00 , B24B37/04 , H01L39/2454 , Y10S505/813
摘要： A surface polishing method for enhancing crystal orientation on the surface of a tapelike metal substrate in order to enhance the critical current of a superconducting thin film. In an oxide superconductor comprising a tapelike substrate, an intermediate layer formed on the tapelike substrate, and an oxide superconducting thin film layer formed on the intermediate layer, the method for polishing a surface to be polished of the tapelike substrate comprises a step for polishing the surface to be polished while traveling the tapelike substrate continuously, wherein an initial polishing step and a finish polishing step are included. Ultimately, the average surface roughness Ra of the polished surface is 2 nanometer or less and the in-plane orientation Δφ is 5° or less.
摘要翻译：为了提高超导薄膜的临界电流，在带状金属基板的表面上增强晶体取向的表面研磨方法。在形成有带状基板的氧化物超导体，形成在带状基板上的中间层和形成在中间层上的氧化物超导薄膜层的情况下，对带状基板的被研磨面进行研磨的方法包括：连续行进带状基板时要抛光的表面，其中包括初始抛光步骤和精抛光步骤。最终，研磨表面的平均表面粗糙度Ra为2nm以下，面内取向为Dgr＆amp; 为5°以下。

49. 发明申请

US20090163117A1 METHOD OF PRODUCING GLASS SUBSTRATE FOR PERPENDICULAR MAGNETIC RECORDING DISK 有权
标题翻译：生产圆形磁记录盘的玻璃基板的方法
公开(公告)号：US20090163117A1
公开(公告)日：2009-06-25
申请号：US12394461
申请日：2009-02-27
申请人： Yuji Horie , Tatsuya Tanifuji , Noriyuki Kumasaka
发明人： Yuji Horie , Tatsuya Tanifuji , Noriyuki Kumasaka
IPC分类号： B24B7/24 , B24B7/26
CPC分类号： G11B5/7315 , B24B21/04 , B24B37/04 , C03C19/00 , C03C21/002 , C03C2204/08 , G11B5/8404
摘要： A glass substrate for perpendicular magnetic recording, having a surface with an average surface roughness of 2.0 Å or less and surface height variations of 1 Å or less with wavelengths in the range of 0.05 mm-0.5 mm in both radial and circumferential directions, is produced by rotating a glass substrate, supplying polishing slurry containing a specified amount of abrading particles of artificial diamond on its surface, pressing a polishing tape on the surface and causing this polishing tape to travel in a direction opposite to the direction of rotation of the glass substrate.
摘要翻译：制造用于垂直磁记录的玻璃基板，具有平均表面粗糙度为2.0或更小的表面，以及在径向和圆周方向上的波长在0.05mm-0.5mm的范围内的表面高度变化为1或更小的表面高度变化通过旋转玻璃基板，在其表面上供给包含特定量的人造金刚石研磨颗粒的研磨浆料，将表面上的研磨带压制，并使该研磨带沿与玻璃基板的旋转方向相反的方向行进。

50. 发明授权

US06503858B1 Glass composition, structure, and apparatus using the same 失效
公开(公告)号：US06503858B1
公开(公告)日：2003-01-07
申请号：US09626389
申请日：2000-07-26
申请人： Hiroki Yamamoto , Takashi Naito , Takashi Namekawa , Ken Takahashi , Noriyuki Kumasaka , Kenkichi Inada
发明人： Hiroki Yamamoto , Takashi Naito , Takashi Namekawa , Ken Takahashi , Noriyuki Kumasaka , Kenkichi Inada
IPC分类号： C03C1400
CPC分类号： C03C14/004 , C03C8/24 , C03C8/245
摘要： Provided are a glass such as a sealing glass which contains a rare earth element and crystalline particles, a structure made by sealing with said sealing glass, a magnetic head made by bonding using said sealing glass, and a magnetic recording and reproducing apparatus on which said magnetic heads are mounted. According to the glass of the present invention, magnetic heads, and other structures can be bonded at low temperatures and a high bond strength can be attained, and thus, magnetic heads having high-speed sliding properties and magnetic recording and reproducing apparatuses of high reliability can be obtained. The glass can be also used for heat resistant parts such as a pannel glass for a cathode-ray tube and the like.

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