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公开(公告)号：US5082714A
公开(公告)日：1992-01-21
申请号：US255005
申请日：1988-10-07
申请人： Akio Yanai , Yasuo Nishikawa
发明人： Akio Yanai , Yasuo Nishikawa
IPC分类号： G11B5/72 , C09D171/02 , C10M107/38 , C10N40/18 , G11B5/64 , G11B5/66 , G11B5/71 , G11B5/725 , G11B5/74
CPC分类号： G11B5/65 , G11B5/725 , G11B5/74 , Y10S428/90 , Y10T428/24355 , Y10T428/265 , Y10T428/3154
摘要： The running properties and durability under a wide range of temperature and humidity conditions are improved by the presence of terminally modified polyhexafluoropropylene on a thin ferromagnetic metal film.
摘要翻译： 通过在薄的铁磁性金属膜上存在末端改性的聚六氟丙烯，改善了在宽温度和湿度条件下的运行性能和耐久性。
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公开(公告)号：US4557948A
公开(公告)日：1985-12-10
申请号：US637703
申请日：1984-08-06
申请人： Nobuyuki Yamamoto , Masao Yabe , Yasuo Nishikawa , Akio Yanai , Ryuji Shirahata , Kyoichi Naruo
发明人： Nobuyuki Yamamoto , Masao Yabe , Yasuo Nishikawa , Akio Yanai , Ryuji Shirahata , Kyoichi Naruo
IPC分类号： G11B5/72 , C10M105/22 , C10M105/32 , C10N40/18 , G11B5/64 , G11B5/725 , G11B5/84 , B05D5/12
摘要： A process for producing a magnetic recording material comprising a support having a thin metal film layer provided thereon is described, the process comprising the steps of (1) coating a thin magnetic metal film having a water contact angle of at least 25.degree. with a polymer solution to form a thin polymer layer, drying the thin polymer layer, and providing a lubricant on the thin polymer layer, or (2) coating the thin magnetic metal film with a lubricant-containing polymer solution to form a lubricant-containing polymer layer, and drying the lubricant-containing polymer layer.
摘要翻译： 描述了一种制备磁记录材料的方法，该方法包括具有设置在其上的薄金属膜层的载体，该方法包括以下步骤：（1）将具有至少25°的水接触角的薄磁性金属膜与聚合物 溶液以形成薄聚合物层，干燥薄聚合物层，并在薄聚合物层上提供润滑剂，或（2）用含润滑剂的聚合物溶液涂覆薄磁性金属膜以形成含润滑剂的聚合物层， 并干燥含润滑剂的聚合物层。
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公开(公告)号：US4923748A
公开(公告)日：1990-05-08
申请号：US179924
申请日：1988-04-11
申请人： Tadashi Yasunaga , Akio Yanai , Koji Sasazawa
发明人： Tadashi Yasunaga , Akio Yanai , Koji Sasazawa
CPC分类号： G11B5/653 , Y10S428/90 , Y10T428/265
摘要： A durable, weather-resistant and anti-corrosive magnetic recording medium is disclosed, which comprises a non-magnetic support having coated thereon a thin film type magnetic layer comprising iron, nitrogen oxygen and at least one element selected from the group consisting of titanium, silicon, aluminum and tantalum.
摘要翻译： 公开了一种耐用，耐候和抗腐蚀的磁记录介质，其包括其上涂覆有薄膜型磁性层的非磁性载体，所述薄膜型磁性层包含铁，氮氧和选自钛， 硅，铝和钽。
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公开(公告)号：US4511594A
公开(公告)日：1985-04-16
申请号：US459021
申请日：1983-01-18
申请人： Akio Yanai , Ryuji Shirahata
发明人： Akio Yanai , Ryuji Shirahata
摘要： A system of manufacturing a magnetic recording medium in which a magnetic metal or alloy is heated and evaporated by an electron beam gun so that vacuum-evaporated magnetic film is formed on a non-organic or organic macromolecular base. A plasma generating coil is disposed near an evaporating source and an electron beam passes through the hollow portion of the coil in preferably a direction coaxial with the axis of the coil. High frequency power is applied to the coil and vacuum deposition is carried out with a plasma generated thereby. The flow of vapor of magnetic metal or alloy is applied obliquely to the base and an oxidation gas is introduced into a vacuum container for forming the magnetic film.
摘要翻译： 一种制造磁记录介质的系统，其中磁性金属或合金被电子束枪加热和蒸发，使得在非有机或有机高分子基底上形成真空蒸发的磁性膜。 等离子体产生线圈设置在蒸发源附近，并且电子束优选地通过线圈的中空部分优选地与线圈的轴线同轴的方向。 对线圈施加高频功率，并用等离子体进行真空沉积。 将磁性金属或合金的蒸气流倾斜地施加到基底，并将氧化气体引入用于形成磁性膜的真空容器中。
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公开(公告)号：US4333985A
公开(公告)日：1982-06-08
申请号：US257286
申请日：1981-04-24
申请人： Ryuji Shirahata , Akio Yanai , Tatsuji Kitamoto
发明人： Ryuji Shirahata , Akio Yanai , Tatsuji Kitamoto
CPC分类号： G11B5/72 , Y10S428/90 , Y10T428/265 , Y10T428/31696 , Y10T428/31699 , Y10T428/31935
摘要： A magnetic recording medium is described comprising a protective layer including at least one substance selected from the group consisting of poly(paraxylylene), poly(monochloroparaxylylene), and poly(dichloroparaxylylene) formed on a magnetic recording layer comprising a thin ferromagnetic metal film.
摘要翻译： 描述了一种磁记录介质，其包括保护层，该保护层包括形成在包含薄铁磁金属膜的磁记录层上的聚（对二甲苯），聚（对氯对二甲苯）和聚（二氯对二甲苯）中的至少一种物质。
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公开(公告)号：US4990361A
公开(公告)日：1991-02-05
申请号：US403075
申请日：1989-08-28
申请人： Tadashi Yasunaga , Akio Yanai , Koji Sasazawa
发明人： Tadashi Yasunaga , Akio Yanai , Koji Sasazawa
CPC分类号： G11B5/85
摘要： A method and apparatus for producing a magnetic recording medium having an improved durability with a simple process. Nitrogen molecules and/or nitrogen atoms in an excited state are applied to a nonmagnetic substrate simultaneously with an iron vapor flow and an ion flow. The resulting magnetic recording medium has superior corrosion resistance and can be produced at a high film forming rate, and is especially suitable for high density recording because of its high coercive force.
摘要翻译： 一种以简单的工艺制造具有改善的耐久性的磁记录介质的方法和装置。 处于激发态的氮分子和/或氮原子与铁蒸气流和离子流同时施加到非磁性基底上。 所得到的磁记录介质具有优异的耐腐蚀性，并且可以以高的成膜速度生产，并且由于其高矫顽力而特别适用于高密度记录。
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公开(公告)号：US4873154A
公开(公告)日：1989-10-10
申请号：US151722
申请日：1988-02-03
申请人： Tadashi Yasunaga , Akio Yanai
发明人： Tadashi Yasunaga , Akio Yanai
CPC分类号： G11B5/656 , Y10S428/90
摘要： A magnetic recording medium, such as a tape, having a thin ferromagnetic film containing Fe.sub.a Co.sub.b N.sub.c O.sub.d satisfying: 32%.ltoreq.a.ltoreq.90%; 5%.ltoreq.b.ltoreq.55%; 2%.ltoreq.c.ltoreq.28%; 5%.ltoreq.d.ltoreq.23%; and c+d.ltoreq.40%. Such a film provides enhanced resistance against corrosion.
摘要翻译： 具有包含FeaCobNcOd的薄铁磁性薄膜的磁记录介质，如磁带，满足：32％
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公开(公告)号：US4743467A
公开(公告)日：1988-05-10
申请号：US96203
申请日：1987-09-08
申请人： Ryuji Shirahata , Akio Yanai
发明人： Ryuji Shirahata , Akio Yanai
CPC分类号： G11B5/85 , Y10S428/90
摘要： A method of preparing a ferromagnetic recording medium is disclosed. The method includes charging a ferromagnetic material in an evaporator. The material is then irradiated with an electron beam having a beam current density of at least 0.1 A/cm.sup.2 in order to evaporate the material. The evaporated material is vapor deposited on a continuously travelling support in order to from the recording medium. The vapor deposition type magnetic recording medium produced has good metal film adhesion and durability.
摘要翻译： 公开了制备铁磁记录介质的方法。 该方法包括在蒸发器中充入铁磁材料。 然后用具有至少0.1A / cm 2的束电流密度的电子束照射该材料，以便蒸发该材料。 将蒸发的材料气相沉积在连续行进的载体上，以便从记录介质中。 所制造的气相沉积型磁记录介质具有良好的金属膜附着力和耐久性。
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公开(公告)号：US4702938A
公开(公告)日：1987-10-27
申请号：US933446
申请日：1986-11-21
申请人： Tadashi Yasunaga , Akio Yanai , Ryuji Shirahata
发明人： Tadashi Yasunaga , Akio Yanai , Ryuji Shirahata
摘要： A process for fabricating magnetic tape in which a tape substrate in passed through a stream of evaporating material so as to present a continuously varying angle of incidence to the stream. The maximum and minimum angles of incidence are defined. Oxidizing gas is applied to the tape at the minimum angle of incidence and at an intermediate angle.
摘要翻译： 一种用于制造磁带的方法，其中带状基底通过蒸发材料流以便呈现与流的连续变化的入射角。 定义最大和最小入射角。 氧化气体以最小入射角以中间角度施加到带上。
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公开(公告)号：US5114778A
公开(公告)日：1992-05-19
申请号：US261068
申请日：1988-10-24
申请人： Akio Yanai , Tadashi Yasunaga
发明人： Akio Yanai , Tadashi Yasunaga
CPC分类号： G11B5/7325 , G11B5/738 , Y10S428/90 , Y10T428/24355
摘要： A magnetic recording medium having improved running properties and electromagnetic characteristics is disclosed, which comprises a non-magnetic support having provided thereon an underlayer and a magnetic layer composed of a thin ferromagnetic metal film in that order, said underlayer being composed mainly of a high molecular weight compound having on the surface thereof an uneven orange peel texture, wherein said underlayer has an average surface area of a unit cell of the uneven orange peel texture of from 3.times.10.sup.-6 to 3.times.10.sup.-3 mm.sup.2, and has a surface roughness of from 0.1 to 0.01 .mu.m.
摘要翻译： 公开了一种具有改善的运行特性和电磁特性的磁记录介质，其包括其上设置有底层的非磁性支撑体和由薄铁磁金属膜构成的磁性层，所述底层主要由高分子量 其表面上具有不均匀的橙皮纹理，其中所述底层具有不均匀橙皮纹理的单位晶胞的平均表面积为3×10 -6至3×10 -3 mm 2，并且具有0.1的表面粗糙度 至0.01亩。
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