公开(公告)号：US4937098A

公开(公告)日：1990-06-26

申请号：US340743

申请日：1989-04-20

申请人： Yasuo Nishikawa ,  Mikio Ohno ,  Masaaki Fujiyama ,  Tsutomu Okita

发明人： Yasuo Nishikawa ,  Mikio Ohno ,  Masaaki Fujiyama ,  Tsutomu Okita

IPC分类号： G11B5/842 ,  G11B5/712 ,  H01F1/06

CPC分类号： G11B5/712 ,  Y10S428/90

摘要： A method for manufacturing a magnetic recording medium is disclosed, comprising ferromagnetic alloy powders having an average length in the long axis of 0.3 .mu.m or less and a specific surface area (BET Method) of 45 m.sup.2 /g or more, by steps which comprise surface-treating the ferromagnetic alloy powders with at least one triazine thiol compound, dispersing the surface-treated powders in a binder, and then coating the binder containing the surface-treated powders on a nonmagnetic support, wherein the ferromagnetic alloy powders are surface-treated with a triazine thiol compound represented by formula (I) in a condition in which the moisture content of the ferromagnetic alloy powders is 0.5 wt % or less, in a system of substantially excluded moisture: ##STR1## wherein R represents R.sub.1 O--, R.sub.1 S--, R.sub.1 NH--, or R.sub.1 R.sub.2 N--R.sub.1 --, R.sub.1 and R.sub.2, which may be the same or different, each represents an alkyl, alkenyl, aryl, aralkyl, cycloalkyl or alkanol group having from 1 to 18 carbon atoms, and M.sub.1 and M.sub.2, which may be the same or different, each represents H, alkali metal or ammonium.

摘要翻译： 公开了一种磁记录介质的制造方法，其特征在于，包括长轴的平均长度为0.3μm以下，比表面积（BET法）为45m 2 / g以上的铁磁性合金粉末， 用至少一种三嗪硫醇化合物对铁磁性合金粉末进行表面处理，将表面处理的粉末分散在粘合剂中，然后将含有表面处理粉末的粘合剂涂布在非磁性载体上，其中将铁磁性合金粉末进行表面处理 在具有基本上排除的水分的体系中，在铁磁性合金粉末的水分含量为0.5重量％以下的条件下，由式（I）表示的三嗪硫醇化合物：其中R表示R 1 O- ，R1S-，R1NH-或R1R2N-R1，R1和R2可以相同或不同，表示具有1至18个碳原子的烷基，烯基，芳基，芳烷基，环烷基或链烷醇基，M1 和M2，w 其可以相同或不同，各自表示H，碱金属或铵。

公开(公告)号：US5082733A

公开(公告)日：1992-01-21

申请号：US340617

申请日：1989-04-18

申请人： Hideomi Watanabe ,  Mikio Ohno ,  Hiroshi Hashimoto ,  Tsutomu Okita

发明人： Hideomi Watanabe ,  Mikio Ohno ,  Hiroshi Hashimoto ,  Tsutomu Okita

IPC分类号： G11B5/842 ,  G11B5/712

CPC分类号： G11B5/712 ,  Y10S428/90 ,  Y10T428/2991 ,  Y10T428/2998

摘要： A method for preparing a magnetic recording medium is disclosed, comprising the steps of (1) surface-treating ferromagnetic particles with a glycidyl compound having a molecular weight of 1,000 or less and having an epoxy equivalent of 200 g/eq. or less, (2) dispersing the surface-treated ferromagnetic particles with a binder to prepare a magnetic coating composition, (3) coating the resulting magnetic coating composition on a nonmagnetic support, and then (4) drying the magnetic coating composition.

摘要翻译： 公开了一种制备磁记录介质的方法，包括以下步骤：（1）用分子量为1,000或更小的环氧当量为200g / eq的缩水甘油基化合物对铁磁颗粒进行表面处理。 （2）用粘合剂分散表面处理的铁磁颗粒以制备磁性涂料组合物，（3）将所得磁性涂料组合物涂布在非磁性载体上，然后（4）干燥磁性涂料组合物。

公开(公告)号：US20050214594A1

公开(公告)日：2005-09-29

申请号：US11090053

申请日：2005-03-28

申请人： Mikio Ohno

发明人： Mikio Ohno

IPC分类号： G11B5/627 ,  B32B5/16 ,  G11B15/18 ,  G11B23/107 ,  G11B23/26

CPC分类号： G11B5/627 ,  G11B23/107 ,  Y10T428/25

摘要： A leader tape has, on at least one face of a support, a coating layer that contains a powder and a binder, which is characterized in that the center line average roughness (Ra) of at least one face of the leader tape is from 10 to 60 nm, the leader tape is used in a magnetic recording and reproduction device where the line recording density is at least 100 kfci, and the difference between the recording track width and the reproduction track width is from 0 to 16 μm.

摘要翻译： 引导带在支撑体的至少一个面上具有包含粉末和粘合剂的涂层，其特征在于，引带的至少一个面的中心线平均粗糙度（Ra）为10 在磁记录和再现装置中使用领先带，线记录密度至少为100kfci，记录磁道宽度和再现磁道宽度之差为0至16μm。

公开(公告)号：US06692849B2

公开(公告)日：2004-02-17

申请号：US09956036

申请日：2001-09-20

申请人： Hiroaki Araki ,  Mikio Ohno ,  Toshichika Aoki

发明人： Hiroaki Araki ,  Mikio Ohno ,  Toshichika Aoki

IPC分类号： B32B516

CPC分类号： G11B5/70 ,  G11B5/7085 ,  G11B5/714 ,  Y10T428/24355 ,  Y10T428/24372

摘要： A magnetic recording medium is provided comprising a non-magnetic support and at least one magnetic layer comprising ferromagnetic metal particles principally containing iron, having a spindle shape and having an average major axis length of 0.15 &mgr;m or less, and a binder resin, and optionally further comprising, between the support and the magnetic layer, at least one adhesive layer or at least one non-magnetic layer principally containing a non-magnetic inorganic powder and a binder, and wherein center line average surface roughness Ra of the magnetic layer surface being 2 to 6 nm, said recording medium having the following properties; steel ball wear at 23° C. and 70% RH being 2×10−5 to 4×10−5 mm3, surface C/Fe ratio measured by Auger electron spectroscopy being 50 to 100, and coefficient of friction between the magnetic layer surface and an SUS rod having a roughness of 8 to 10 nm being 0.2 to 0.3.

摘要翻译： 提供了一种磁记录介质，其包括非磁性载体和至少一个磁性层，所述至少一个磁性层包含主要包含铁的铁磁性金属颗粒，其主轴形状和平均长轴长度为0.15μm或更小，以及粘合剂树脂， 还包括在所述支撑体和所述磁性层之间的至少一个粘合剂层或主要包含非磁性无机粉末和粘合剂的至少一个非磁性层，并且其中所述磁性层表面的中心线平均表面粗糙度Ra为 2〜6nm，所述记录介质具有以下特性; 在23℃和70％RH下的钢球磨损为2×10 -5至4×10 -5 mm 3，通过俄歇电子能谱法测得的表面C / ​​Fe比为50至100，摩擦系数 磁性层表面和粗糙度为8〜10nm的SUS棒为0.2〜0.3。

公开(公告)号：US20080166881A1

公开(公告)日：2008-07-10

申请号：US11885551

申请日：2006-02-24

申请人： Tomoshi Taniyama ,  Yoshikazu Takashima ,  Mikio Ohno

发明人： Tomoshi Taniyama ,  Yoshikazu Takashima ,  Mikio Ohno

IPC分类号： H01L21/31 ,  C23C16/00

CPC分类号： C23C16/4412 ,  H01L21/0217 ,  H01L21/02211 ,  H01L21/02271 ,  H01L21/3185 ,  H01L21/67017 ,  H01L21/67109

摘要： Stagnation of gas used for substrate processing in an exhaust trap is prevented, and localized precipitation of components in the gas used for substrate processing is reduced. The proposed apparatus includes a substrate processing chamber (cylindrical space 250), a gas supply tube 232 for supplying substrate processing gas to the substrate processing chamber, a first exhaust tube (upstream exhaust tube 231a) for discharging gas used for substrate processing from the substrate processing chamber, an exhaust trap 49 for removing components contained in the gas used for substrate processing introduced through the first exhaust tube, and a second exhaust tube (downstream exhaust tube 231b) for exhausting gas out of said exhaust trap 49 after components have been removed from the gas used for substrate processing, wherein the exhaust trap 49 is provided with a cooled baffle plate 59 that is substantially perpendicular to the direction in which gas is introduced into the exhaust trap 49 and that has a concave surface 59a in the side facing the gas introduction port 55a of the exhaust trap 49.

摘要翻译： 防止在排气阱中用于基板处理的气体滞留，并且减少了用于基板处理的气体中的部件的局部沉淀。 所提出的装置包括基板处理室（圆筒形空间250），用于向基板处理室供给基板处理气体的气体供给管232，用于从基板处理室排出用于基板处理的气体的第一排气管（上游排气管231a） 衬底处理室，用于去除用于通过第一排气管引入的用于衬底处理的气体中所含的组分的排气阱49和用于在组件具有后从排气阱49排出气体的第二排气管（下游排气管231b） 从用于基板处理的气体中除去，其中排气阱49设置有冷却的挡板59，其基本上垂直于气体被引入排气阱49中的方向，并且在其中具有凹面59a 面对排气收集器49的气体导入口55a。

公开(公告)号：US07368189B2

公开(公告)日：2008-05-06

申请号：US11042064

申请日：2005-01-26

申请人： Mikio Ohno ,  Tatsuo Ishikawa ,  Tomohiro Ichikawa

发明人： Mikio Ohno ,  Tatsuo Ishikawa ,  Tomohiro Ichikawa

IPC分类号： G11B5/66 ,  B32B27/06

CPC分类号： B32B27/36 ,  B32B27/14 ,  B32B2307/20 ,  B32B2307/538 ,  B32B2429/02 ,  G11B5/70 ,  G11B5/7305 ,  G11B5/733 ,  G11B5/735 ,  Y10T428/31786

摘要： A magnetic recording medium comprising: a magnetic layer containing ferromagnetic powder and a binder; a nonmagnetic support; and a back coat layer, in this order, wherein the nonmagnetic support contains polyester having an intrinsic viscosity of from 0.40 to 0.60 dl/g and a number average molecular weight of from 12,000 to 24,000, a surface of the magnetic layer on a side not having the nonmagnetic support has a surface roughness Ra of from 1 to 5 nm, and a surface of the back coat layer on a side not having the nonmagnetic support has a surface roughness Ra of from 6 to 20 nm.

摘要翻译： 一种磁记录介质，包括：含有铁磁粉末和粘合剂的磁性层; 非磁性支撑; 和背涂层，其中非磁性载体含有特性粘度为0.40至0.60dl / g，数均分子量为12,000至24,000的聚酯，磁性层的表面不在 具有非磁性载体的表面粗糙度Ra为1〜5nm，背面层的不具有非磁性载体的表面的表面粗糙度Ra为6〜20nm。

公开(公告)号：US07045227B2

公开(公告)日：2006-05-16

申请号：US10804145

申请日：2004-03-19

申请人： Tatsuo Ishikawa ,  Mikio Ohno

发明人： Tatsuo Ishikawa ,  Mikio Ohno

IPC分类号： G11B5/738

CPC分类号： G11B5/738 ,  G11B5/70 ,  G11B5/714 ,  G11B5/735 ,  Y10T428/31551

摘要： A magnetic recording medium comprising: a nonmagnetic support; an undercoat layer containing a compound polymerizable by radiation exposure; and a magnetic layer containing ferromagnetic powder and a binder, in this order wherein the undercoat layer has a thickness of from 0.1 to 1 μm, the binder contains a polyurethane resin having a glass transition temperature of from 100 to 200° C., the magnetic layer has a thickness of from 20 to 150 nm, and an average particle size of the ferromagnetic powder is from 20 to 60 nm.

摘要翻译： 一种磁记录介质，包括：非磁性载体; 含有通过辐射照射可聚合的化合物的底涂层; 和含有铁磁性粉末和粘合剂的磁性层，其中底涂层的厚度为0.1〜1μm，粘合剂含有玻璃化转变温度为100〜200℃的聚氨酯树脂，磁性 层的厚度为20〜150nm，铁磁性粉末的平均粒径为20〜60nm。

公开(公告)号：US20050173577A1

公开(公告)日：2005-08-11

申请号：US11023448

申请日：2004-12-29

申请人： Mikio Ohno

发明人： Mikio Ohno

IPC分类号： G11B15/67 ,  G11B23/107

CPC分类号： G11B15/672 ,  G11B23/107

摘要： Disclosed is a tape drive system which can wind magnetic tapes in proper alignment and which minimizes the possibility of tape impressions on magnetic tapes even if the core of the take-up reel has step heights on its peripheral surface. The tape drive system includes a tape-shaped recording medium having a head edge where a leader tape is formed to prevent tape impressions from being formed on the tape-shaped recording medium itself; a plurality of grooves formed on a flange of the take-up reel or the supply reel, the grooves for directing an airflow to an outside of the flange upon winding of the tape-shaped recording medium; and the leader tape having a surface of a center line average roughness ranging from 10 nm to 60 nm and a total thickness ranging from 10 μm to 40 μm while being wounded around or the take-up reel.

摘要翻译： 公开了一种磁带驱动系统，其可以正确对准地卷绕磁带，并且即使卷绕卷轴的芯在其外围表面上具有台阶高度，也可以最小化磁带上的磁带印象的可能性。 磁带驱动系统包括具有头部边缘的带状记录介质，其中形成引导带以防止在带状记录介质本身上形成胶带印痕; 形成在卷取卷轴或供带盘的凸缘上的多个槽，用于在缠绕带状记录介质时将气流引导到凸缘外部的槽; 并且所述引导带的中心线平均粗糙度的表面在10nm至60nm的范围内，总厚度为10μm至40μm的同时被缠绕在卷绕器上。

公开(公告)号：US07361422B2

公开(公告)日：2008-04-22

申请号：US11090069

申请日：2005-03-28

申请人： Masatoshi Takahashi ,  Mikio Ohno

发明人： Masatoshi Takahashi ,  Mikio Ohno

IPC分类号： G11B5/73 ,  G11B5/735

CPC分类号： G11B23/107 ,  G11B23/26

摘要： A leader tape in which an non-magnetic under layer that contains a powder and a binder and a magnetic upper layer are sequentially laminated on at least one side of a support, a center line average roughness (Ra) of a surface of the support is from 30 to 50 nm, and a center line average roughness (Ra) of the multi layer coated surface is larger than that (Ra) of an opposite surface of the support, and the difference is at most 4 nm.

摘要翻译： 其中包含粉末和粘合剂的非磁性底层和磁性上层的引导带依次层压在支撑体的至少一侧上，支撑体表面的中心线平均粗糙度（Ra）为 30〜50nm，多层被覆面的中心线平均粗糙度（Ra）大于载体的相反面的（Ra），差为4nm以下。

公开(公告)号：US07349182B2

公开(公告)日：2008-03-25

申请号：US11049877

申请日：2005-02-04

申请人： Mikio Ohno ,  Tomohiro Ichikawa ,  Tatsuo Ishikawa

发明人： Mikio Ohno ,  Tomohiro Ichikawa ,  Tatsuo Ishikawa

IPC分类号： G11B5/78

CPC分类号： G11B5/73

摘要： A magnetic recording medium for being used in a write/read system in which a difference of track width between write track width and read track width is smaller than 10 μm, which comprises: a magnetic layer containing ferromagnetic powder and a binder; a nonmagnetic support; and a backcoating layer, in this order, at least one of the magnetic layer and the backcoating layer having servo signals for tracking control pre-recorded therein, wherein the nonmagnetic support is a film of a polyester having an intrinsic viscosity of 0.40 to 0.60 dl/g and a number average molecular weight of 12000 to 24000.

摘要翻译： 一种用于写入/读取系统的磁记录介质，其中写入磁道宽度和读取磁道宽度之间的磁道宽度的差小于10um，其包括：包含铁磁性粉末和粘合剂的磁性层; 非磁性支撑; 和背涂层，其中磁性层和背涂层中的至少一个具有用于在其中预先记录的跟踪控制的伺服信号，其中非磁性载体是特性粘度为0.40至0.60dl的聚酯膜 / g，数均分子量为12000〜24000。