公开(公告)号：US20100016169A1

公开(公告)日：2010-01-21

申请号：US12375502

申请日：2007-08-01

Applicant: Sanaki Horimoto ,  Takuya Nagamine ,  Takehiro Watanabe ,  Fumi Murokawa ,  Yuji Horie ,  Noriyuki Kumasaka ,  Masahiro Hosoi

Inventor： Sanaki Horimoto ,  Takuya Nagamine ,  Takehiro Watanabe ,  Fumi Murokawa ,  Yuji Horie ,  Noriyuki Kumasaka ,  Masahiro Hosoi

IPC: H01B13/00 ,  B24B7/13 ,  B24B21/00 ,  H01B12/02 ,  H01L39/02

CPC classification number: B24B7/13 ,  B24B21/00 ,  B24B37/04 ,  H01L39/2454 ,  Y10S505/813 ,  Y10T29/49014 ,  Y10T428/24355

Abstract: An oxide superconductor member is composed of a tape-shaped substrate, an intermediate layer formed on this substrate and an oxide superconductor thin film layer formed on this intermediate layer. A surface of the tape-shaped substrate is polished by continuously running the tape-shaped substrate. The polishing step includes initial polishing process and finishing process which are carried out such that the average surface roughness Ra of the substrate becomes 2 nanometers or less and the in-plane directionality of the intermediate layer becomes 5° or less after the polishing step.

Abstract translation: 氧化物超导体构件由带状基板，形成在该基板上的中间层和形成在该中间层上的氧化物超导体薄膜层构成。 通过连续运行带状基板来对带状基板的表面进行抛光。 抛光步骤包括初步抛光工艺和精加工工艺，其进行使得在抛光步骤之后，基板的平均表面粗糙度Ra变为2纳米或更小，并且中间层的面内方向性变为5°或更小。

公开(公告)号：US20060252355A1

公开(公告)日：2006-11-09

申请号：US11480744

申请日：2006-07-03

Applicant: Noriyuki Kumasaka

Inventor： Noriyuki Kumasaka

IPC: B24D3/02 ,  B24B1/00 ,  C09K3/14 ,  B24B7/19

CPC classification number: H01L21/02021 ,  B24B9/065 ,  B24B21/002

Abstract: An edge part of a disk-shaped workpiece is polished by pressing a polishing tape and causing a pad or a contact roller to undergo a reciprocating motion intermittently or continuously along the edge part such that the front surface part, the end surface part and the back surface part of the workpiece are polished. The polishing tape has a polishing layer formed by having diamond particles with average diameter in the range of 0.1 μm-16 μm fastened by a binder. This series of polishing steps may be repeated by using different polishing tapes with diamond particles having different average diameters.

Abstract translation: 圆盘状工件的边缘部分通过按压研磨带进行抛光，并使焊盘或接触辊沿着边缘部分间歇地或连续地进行往复运动，使得前表面部分，端面部分和背面 工件的表面部分被抛光。 抛光带具有通过使用粘合剂固定平均直径在0.1μm-16μm范围内的金刚石颗粒形​​成的抛光层。 可以通过使用具有不同平均直径的金刚石颗粒的不同抛光带来重复该系列抛光步骤。

公开(公告)号：US06512655B1

公开(公告)日：2003-01-28

申请号：US09626084

申请日：2000-07-26

Applicant: Hiroki Yamamoto ,  Takashi Naito ,  Takashi Namekawa ,  Ken Takahashi ,  Noriyuki Kumasaka ,  Kenkichi Inada

Inventor： Hiroki Yamamoto ,  Takashi Naito ,  Takashi Namekawa ,  Ken Takahashi ,  Noriyuki Kumasaka ,  Kenkichi Inada

IPC: G11B5235

CPC classification number: C03C14/004 ,  C03C8/24 ,  C03C8/245

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US06369981B2

公开(公告)日：2002-04-09

申请号：US09975265

申请日：2001-10-12

Applicant: Katsutoshi Nii ,  Kenji Tomida ,  Hiroshi Nishida ,  Kouki Uefune ,  Yuuichi Yanagase ,  Masaru Muranishi ,  Takashi Kouno ,  Kazuhiko Kawakami ,  Hisanobu Kanamaru ,  Noriyuki Kumasaka

Inventor： Katsutoshi Nii ,  Kenji Tomida ,  Hiroshi Nishida ,  Kouki Uefune ,  Yuuichi Yanagase ,  Masaru Muranishi ,  Takashi Kouno ,  Kazuhiko Kawakami ,  Hisanobu Kanamaru ,  Noriyuki Kumasaka

IPC: G11B1702

CPC classification number: H02K5/1675 ,  F16C17/028 ,  F16C33/1075 ,  F16C2370/12 ,  G11B19/2018

Abstract: 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.

公开(公告)号：US06339676B1

公开(公告)日：2002-01-15

申请号：US09551911

申请日：2000-04-19

Applicant: Nobutaka Amada ,  Hitoaki Owashi ,  Takaharu Noguchi ,  Noriyuki Kumasaka ,  Hideo Zama

Inventor： Nobutaka Amada ,  Hitoaki Owashi ,  Takaharu Noguchi ,  Noriyuki Kumasaka ,  Hideo Zama

IPC: H04N5782

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US6033792A

公开(公告)日：2000-03-07

申请号：US174445

申请日：1998-10-19

Applicant: Fumiyoshi Kirino ,  Shigekazu Otomo ,  Nagatugu Koiso ,  Noriyuki Kumasaka ,  Takeshi Miura

Inventor： Fumiyoshi Kirino ,  Shigekazu Otomo ,  Nagatugu Koiso ,  Noriyuki Kumasaka ,  Takeshi Miura

IPC: G11B5/147

CPC classification number: G11B5/147 ,  Y10T428/115 ,  Y10T428/31678

Abstract: A recording head for recording data onto a recording medium is provided with a thin film formed of the following compound Fe.sub.100-a-b-c X.sub.a Y.sub.b Z.sub.c, wherein X is at least one element selected from the group consisting of Nb, Ta, Hf and Zr, Y is one or two elements selected from the group consisting of Cr, Ru, Al, Si, Ti and Rh, and Z is at least one element selected from the group consisting of C and N, and wherein 5.ltoreq.a.ltoreq.20, 0.5.ltoreq.b.ltoreq.15, 1.ltoreq.c.ltoreq.20, and 0.5.ltoreq.a/c.ltoreq.0.7, the carbide or the nitride of the element X having an average grain size of not larger than 3 nm. This way, increased corrosion resistance is provided without substantially reducing magnetic characteristics such as saturation and coercive force. A recording apparatus, such as a VTR, including such a recording head is disclosed as well as a recording medium formed using this thin film.

Abstract translation: 在记录介质上记录数据的记录头设有由以下化合物Fe100-ab-cXaYbZc形成的薄膜，其中X是选自Nb，Ta，Hf和Zr中的至少一种元素，Y是 选自Cr，Ru，Al，Si，Ti和Rh中的一种或两种元素，Z是选自C和N中的至少一种元素，其中5≤A≤20 ，0.5≤b≤15，1≤c≤20,0.5≤a/c≤0.7，元素X的碳化物或氮化物的平均粒径不是 大于3nm。 这样，提供了增加的耐腐蚀性，而基本上不降低诸如饱和度和矫顽力之类的磁特性。 公开了包括这种记录头的诸如VTR的记录装置以及使用该薄膜形成的记录介质。

公开(公告)号：US5879798A

公开(公告)日：1999-03-09

申请号：US534872

申请日：1990-06-08

Applicant: Toshio Kobayashi ,  Ryoichi Nakatani ,  Hitoshi Nakamura ,  Noriyuki Kumasaka

Inventor： Toshio Kobayashi ,  Ryoichi Nakatani ,  Hitoshi Nakamura ,  Noriyuki Kumasaka

IPC: C22C19/00 ,  C22C38/00 ,  G11B5/127 ,  G11B5/133 ,  G11B5/187 ,  H01F10/00 ,  H01F10/12 ,  H01F10/32 ,  G11B5/66

CPC classification number: B82Y25/00 ,  G11B5/133 ,  G11B5/1878 ,  H01F10/007 ,  H01F10/3254 ,  Y10S428/90 ,  Y10S428/92 ,  Y10T428/115 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/2991

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US5157569A

公开(公告)日：1992-10-20

申请号：US704226

申请日：1991-05-22

Applicant: Noriyuki Kumasaka ,  Kenkichi Inada ,  Ikuo Shinta ,  Sigeo Imai ,  Souzou Sasajima

Inventor： Noriyuki Kumasaka ,  Kenkichi Inada ,  Ikuo Shinta ,  Sigeo Imai ,  Souzou Sasajima

IPC: G11B5/127 ,  G11B5/187

CPC classification number: G11B5/1871

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US4935314A

公开(公告)日：1990-06-19

申请号：US172499

申请日：1988-03-24

Applicant: Toshio Kobayashi ,  Ryoichi Nakatani ,  Shigekazu Otomo ,  Noriyuki Kumasaka

Inventor： Toshio Kobayashi ,  Ryoichi Nakatani ,  Shigekazu Otomo ,  Noriyuki Kumasaka

IPC: C22C38/00 ,  G11B5/127 ,  G11B5/31 ,  H01F10/14

CPC classification number: G11B5/3109 ,  G11B5/1278 ,  H01F10/14 ,  H01F10/265 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/115 ,  Y10T428/12632 ,  Y10T428/12937 ,  Y10T428/12951

Abstract: An anti-corrosion ferromagnetic film and a magnetic head using the crystalline ferromagnetic film are disclosed. The anti-corrosion film contains an element interstitially soluble to iron, in addition to iron used as the main component, and further contains at least one element selected from the group consisting of Ni, Rh, Ru, Pd, Zr, Nb, Ta, Ag, Os, Ir, Pt, Au, Cr, Mo, W, Ti, Bi, V, Co and Cu, at a concentration value of 0.5 to 5 atomic percent.

Abstract translation: 公开了一种防腐铁磁膜和使用结晶铁磁膜的磁头。 除了用作主要成分的铁以外，还含有选自Ni，Rh，Ru，Pd，Zr，Nb，Ta， Ag，Os，Ir，Pt，Au，Cr，Mo，W，Ti，Bi，V，Co和Cu，浓度为0.5〜5原子％。

公开(公告)号：US4891278A

公开(公告)日：1990-01-02

申请号：US016402

申请日：1987-02-19

Applicant: Shigekazu Otomo ,  Ryoichi Nakatani ,  Noriyuki Kumasaka ,  Noritoshi Saito ,  Toshio Kobayashi ,  Masahiko Fujishiro

Inventor： Shigekazu Otomo ,  Ryoichi Nakatani ,  Noriyuki Kumasaka ,  Noritoshi Saito ,  Toshio Kobayashi ,  Masahiko Fujishiro

IPC: G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  H01F10/14 ,  H01F10/16

CPC classification number: G11B5/127 ,  G11B5/1278 ,  G11B5/31 ,  G11B5/39 ,  H01F10/14 ,  H01F10/16 ,  H01F10/265 ,  Y10S428/928 ,  Y10T428/115 ,  Y10T428/12951

Abstract: A ferromagnetic thin film containing Fe as a main component and at least one additive element selected from the group consisting of Co, Ni, Ru, Rh, Pd, Os, Ir and Pt, in which the total content of the at least one additive element is not less than 0.1 at % and additive contents, a, b, c, d, e, f, g and h (at %) respectively of said Co, Ni, Ru, Rh, Pd, Os, Ir and Pt satisfy ##EQU1## The ferromagnetic thin film thus disclosed has a high saturation flux density of 18 KG or more, a magnetostriction constant close to zero, and excellent corrosion resistance. There is also disclosed a magnetic head using the above described ferromagnetic thin film in at least a part of a magnetic circuit thereof.

Abstract translation: 一种含有Fe作为主要成分的铁磁薄膜和选自Co，Ni，Ru，Rh，Pd，Os，Ir和Pt中的至少一种添加元素，其中至少一种添加元素的总含量 所述Co，Ni，Ru，Rh，Pd，Os，Ir和Pt的添加剂含量a，b，c，d，e，f，g和h（at％）不小于0.1at％ 图像由此公开的铁磁薄膜具有18KG以上的高饱和磁通密度，接近零的磁致伸缩常数和优异的耐腐蚀性。 还公开了在其磁路的至少一部分中使用上述铁磁性薄膜的磁头。