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71. 发明授权

US4528240A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4528240A
公开(公告)日：1985-07-09
申请号：US576273
申请日：1984-02-02
申请人： Takahito Miyoshi , Masaaki Fujiyama , Toshimitu Okutu
发明人： Takahito Miyoshi , Masaaki Fujiyama , Toshimitu Okutu
IPC分类号： G11B5/73 , C09D5/23 , G11B5/738 , G11B5/62
CPC分类号： G11B5/738 , Y10S428/90 , Y10T428/25 , Y10T428/251 , Y10T428/252 , Y10T428/256 , Y10T428/257 , Y10T428/259 , Y10T428/261 , Y10T428/2991 , Y10T428/2993 , Y10T428/2995 , Y10T428/2998
摘要： A magnetic recording medium includes a substrate, a magnetic layer and a subbing layer therebetween. The subbing layer includes tin oxide type powders having a mean particle size not higher than 0.8 micron. S/N ratio is improved.
摘要翻译：磁记录介质包括基板，磁性层和它们之间的底层。底层包括平均粒径不大于0.8微米的氧化锡型粉末。 S / N比提高。

72. 发明授权

US4474843A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4474843A
公开(公告)日：1984-10-02
申请号：US292851
申请日：1981-08-14
申请人： Takahito Miyoshi , Toshimitu Okutu , Masaaki Fujiyama
发明人： Takahito Miyoshi , Toshimitu Okutu , Masaaki Fujiyama
IPC分类号： C09D5/23 , G11B5/735 , G11B5/78
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/24942 , Y10T428/25 , Y10T428/252 , Y10T428/256 , Y10T428/257 , Y10T428/258 , Y10T428/259
摘要： A magnetic recording medium is described comprising a magnetic layer on one surface of a non-magnetic base and a back coating on the other surface of the base, said back coating being not more than 2.mu. thick and which contains an inorganic powder and a binder, said inorganic powder consisting of fine particles of an average size of from 0.01 to 0.1.mu. and coarse particles of an average size of from 0.1 to 0.8.mu..
摘要翻译：磁记录介质被描述为包括在非磁性基底的一个表面上的磁性层和在基底的另一个表面上的背涂层，所述背涂层不大于2微米，并且包含无机粉末和粘合剂所述无机粉末由平均粒度为0.01〜0.1μm的微粒组成，平均粒径为0.1〜0.8μm的粗粒子。

73. 发明授权

US4003743A Process for production of motion picture film with sound track containing p-toluenesulfonic acid and glacial acetic acid 失效
标题翻译：具有包含对甲苯磺酸和冰醋酸的声轨的电影胶片的制造方法
公开(公告)号：US4003743A
公开(公告)日：1977-01-18
申请号：US578957
申请日：1975-05-19
申请人： Goro Akashi , Masaaki Fujiyama , Akira Kasuga
发明人： Goro Akashi , Masaaki Fujiyama , Akira Kasuga
IPC分类号： G03C5/14 , G11B5/633 , G03C7/24 , G03G19/00
CPC分类号： G03C5/14 , G11B5/633 , Y10S430/135
摘要： A magnetic sound track layer can be formed with good adherence on the emulsion layer of a photographic material for motion picture film by coating from a liquid composition comprising ferromagnetic powders, a binder, and at least 1% by weight, based on the weight of said ferromagnetic powders, of p-toluenesulfonic acid and at least 3% by weight, based on the weight of said powder of glacial acetic acid. A motion picture film where the magnetic sound track contains p-toluenesulfonic acid and glacial acetic acid.
摘要翻译：可以通过从包含铁磁粉末，粘合剂的液体组合物涂覆至少1重量％的液体组合物，基于所述的电磁材料的重量，通过涂覆来自电影胶片的照相材料的乳剂层上的良好粘附性，形成磁性声轨层铁磁粉末，对甲苯磺酸和至少3重量％，基于所述冰醋酸粉末的重量。一种电影胶片，其中磁性音轨包含对甲苯磺酸和冰醋酸。

74. 发明授权

US5573444A Polishing method 失效
标题翻译：抛光方法
公开(公告)号：US5573444A
公开(公告)日：1996-11-12
申请号：US263728
申请日：1994-06-22
申请人： Katsumi Ryoke , Keisuke Yamada , Masaaki Fujiyama
发明人： Katsumi Ryoke , Keisuke Yamada , Masaaki Fujiyama
IPC分类号： B24B21/00 , B24B33/00 , G11B5/84 , B24B1/00
CPC分类号： B24B21/004 , B24B33/00 , G11B5/84
摘要： A surface of a member having intrinsic projections thereon is polished to remove the intrinsic projections. An abrasive tape is formed of a substrate and an abrasive layer formed thereon. The abrasive layer primarily contains abrasive grains and a binder. The abrasive tape and the member are slid in substantially opposite directions with the abrasive layer and the surface of the member kept in contact with each other.
摘要翻译：对其上具有固有突起的构件的表面进行抛光以除去固有突起。研磨带由基材和形成在其上的研磨层形成。研磨层主要包含磨料颗粒和粘合剂。研磨带和构件在研磨层和构件的表面保持彼此接触的基本相反的方向上滑动。

75. 发明授权

US5366525A Manufacture of abrasive tape 失效
标题翻译：砂带的制造
公开(公告)号：US5366525A
公开(公告)日：1994-11-22
申请号：US78646
申请日：1993-06-21
申请人： Masaaki Fujiyama
发明人： Masaaki Fujiyama
IPC分类号： B24D3/00 , B24B21/00 , B24D3/28 , B24D11/00
CPC分类号： B24B21/004 , B24D11/00
摘要： A manufacturing method, for an abrasive tape used for the burnishing of items such as floppy disks, which significantly reduces resulting scratches. An abrasive tape is manufactured by the steps of applying a coating liquid which contains as a major composition abrasive particles and a binder resin to a flexible substrate; drying the flexible substrate to produce an abrasive layer; and subjecting the abrasive layer to a surface smoothing treatment in order to align the tip ends of the abrasive particles to a uniform position by passing the abrasive layer between pressure rollers in such a manner that the flexible substrate comes in contact with an elastic roller, whereas the abrasive layer comes in contact with a metal roller, and wherein the pressure rollers are composed of the elastic roller having a hardness of 50-80 measured by a spring type hardness tester A and the metal roller, and are arranged opposite to each other.
摘要翻译：用于用于抛光诸如软盘的物品的研磨带的制造方法，其显着减少了产生的划痕。通过以下步骤制造研磨带：将包含作为主要组成的磨料颗粒和粘合剂树脂的涂布液施加到柔性基材上; 干燥柔性基底以产生研磨层; 并且使研磨层进行表面平滑处理，以便通过使磨料层以压力辊之间的方式使柔性基底与弹性辊相接触的方式将磨料颗粒的末端对准到均匀的位置，而研磨层与金属辊接触，其中压力辊由弹性型硬度计A和金属辊测得的硬度为50-80的弹性辊构成，并且彼此相对布置。

76. 发明授权

US5039554A Process for preparing a backing layer of a magnetic recording medium which includes the predispersing of a fine .alpha.-Al.sub.2 O.sub.3 powder in a solvent containing a small amount of binder 失效
标题翻译：制备磁记录介质背衬层的方法，该方法包括将α-Al2O3粉末预分散在含有少量粘合剂的溶剂中
公开(公告)号：US5039554A
公开(公告)日：1991-08-13
申请号：US607775
申请日：1990-10-30
申请人： Tadashi Ishikuro , Hideaki Kosha , Masaaki Fujiyama
发明人： Tadashi Ishikuro , Hideaki Kosha , Masaaki Fujiyama
IPC分类号： G11B5/84 , C09D5/23 , C09D7/12 , G11B5/73 , G11B5/733 , G11B5/735
CPC分类号： G11B5/735 , G11B5/733 , Y10S428/90 , Y10T428/25 , Y10T428/265 , Y10T428/31609
摘要： A process for preparing a magnetic recording medium by the steps of (a) forming a magnetic layer on one surface of a non-magnetic support and (b) homogeneously dispersing an .alpha.-Al.sub.2 O.sub.3 power having an average particle size of about 0.1 .mu.m or less in a solvent containing a small amount of binder to form a dispersion, mixing the thus-prepared dispersion with a binder to provide a coating composition, and applying the coating composition to the opposite surface of the nonmagnetic support to form a backing layer. The magnetic recording medium has improved wear resistance, a low friction coefficient and excellent electromagnetic properties.
摘要翻译：一种制备磁记录介质的方法，它是通过（a）在非磁性载体的一个表面上形成磁性层的步骤和（b）均匀分散平均粒径约为0.1μm的α-Al2O3粉末或较少在含有少量粘合剂的溶剂中以形成分散体，将由此制备的分散体与粘合剂混合以提供涂料组合物，并将涂料组合物施加到非磁性载体的相对表面以形成背衬层。磁记录介质具有改进的耐磨性，低摩擦系数和优异的电磁特性。

77. 发明授权

US5023135A Magnetic recording medium which contains a binder of nitrogen containing vinyl chloride polymer and an amino group containing polyurethane 失效
标题翻译：含有含氯乙烯聚合物和含氨基的聚氨酯的粘合剂的磁记录介质
公开(公告)号：US5023135A
公开(公告)日：1991-06-11
申请号：US290940
申请日：1988-12-28
申请人： Kazuo Hasumi , Kouichi Mochizuki , Masaaki Fujiyama
发明人： Kazuo Hasumi , Kouichi Mochizuki , Masaaki Fujiyama
IPC分类号： C08L75/04 , C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , G11B5/702
CPC分类号： G11B5/7022 , C08L75/04 , Y10S428/90 , Y10T428/265 , Y10T428/31609
摘要： A magnetic recording medium comprising a non-magnetic support having provided thereon a magnetic layer containing magnetic particles dispersed in a binder, the binder comprising(a) a vinyl chloride polymer resin having a vinyl chloride unit in an amount of 70 wt % or more, nitrogen in an amount of from 0.01 to 1 wt % and a degree of polymerization of from 250 to 700, and(b) a polyurethane having an amino group in an amount of from 10.sup.-6 to 10.sup.-3 eq/g.
摘要翻译：一种包含非磁性载体的磁记录介质，其上设有包含分散在粘合剂中的磁性颗粒的磁性层，所述粘合剂包含（a）具有70重量％以上的氯乙烯单元的氯乙烯聚合物树脂， 0.01至1重量％的氮和聚合度为250至700的氮，和（b）氨基数为10-6至10-3当量/克的聚氨酯。

78. 发明授权

US5000983A Process for the preparation of magnetic recording medium 失效
标题翻译：磁记录介质的制备方法
公开(公告)号：US5000983A
公开(公告)日：1991-03-19
申请号：US285392
申请日：1988-12-16
申请人： Shinobu Iida , Masaaki Fujiyama , Keisuke Yamada , Hiroshi Kato , Naoki Sakai
发明人： Shinobu Iida , Masaaki Fujiyama , Keisuke Yamada , Hiroshi Kato , Naoki Sakai
IPC分类号： G11B5/84
CPC分类号： G11B5/84 , Y10S428/90
摘要： A process for the preparation of a magnetic recording medium which comprises the steps of subjecting a magnetic recording layer coated on a nonmagnetic support to surface smoothening treatment, said magnetic recording layer comprising a ferromagnetic powder dispersed in a binder which is composed of a resin component and a curing agent, and then shaving a surface of said magnetic recording layer by means of a shaving device having high hardness.
摘要翻译：一种制备磁记录介质的方法，包括以下步骤：对涂覆在非磁性载体上的磁记录层进行表面平滑处理，所述磁记录层包含分散在由树脂组分和固化剂，然后通过硬度高的剃须装置对所述磁记录层的表面进行刮削。

79. 发明授权

US4916024A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4916024A
公开(公告)日：1990-04-10
申请号：US390503
申请日：1989-08-01
申请人： Akira Kasuga , Masaaki Fujiyama
发明人： Akira Kasuga , Masaaki Fujiyama
IPC分类号： C09D5/23 , C09C1/48 , C09D7/12 , G11B5/73 , G11B5/738
CPC分类号： G11B5/738 , Y10S428/90 , Y10T428/25 , Y10T428/257 , Y10T428/265
摘要： A magnetic recording medium comprising a non-magnetic support having provided thereon an intermediate layer comprising carbon black, a binder and ferromagnetic particles in a weight ratio of from 5% to 25% based on the carbon black; and a magnetic layer provided on said intermediate layer, wherein said magnetic layer comprises ferromagnetic particles and a binder.
摘要翻译：一种磁记录介质，包括非磁性载体，所述非磁性载体在其上设置有基于炭黑的重量比为5％至25％的包含炭黑，粘合剂和铁磁性颗粒的中间层; 以及设置在所述中间层上的磁性层，其中所述磁性层包括铁磁颗粒和粘合剂。

80. 发明授权

US4812330A Process for producing a magnetic recording medium 失效
标题翻译：磁记录介质的制造方法
公开(公告)号：US4812330A
公开(公告)日：1989-03-14
申请号：US188942
申请日：1988-05-02
申请人： Tadashi Ishikuro , Masaaki Fujiyama
发明人： Tadashi Ishikuro , Masaaki Fujiyama
IPC分类号： G11B5/842 , C09D5/23 , C09D7/12 , G11B5/702 , G11B5/708 , H01F10/02
CPC分类号： G11B5/7023 , G11B5/7021 , G11B5/708 , Y10S428/90
摘要： A process for producing a magnetic recording medium is disclosed, which comprises uniformly dispersing an .alpha.-Al.sub.2 O.sub.3 powder having a particle size of not greater than 0.1 .mu.m in a dispersion medium to obtain a dispersion, adding the dispersion to a coating composition for a magnetic layer essentially comprising a binder and a ferromagnetic powder having a specific surface area of not less than about 40 m.sup.2 /g, further dispersing the mixture to prepare a coating composition for a magnetic layer, and coating the resulting coating composition on a nonmagnetic support to obtain a magnetic layer having a dry thickness of about 2 .mu.m or less. The resulting magnetic recording medium exhibits excellent electromagnetic characteristics and improved abrasion resistance.
摘要翻译：公开了一种制造磁记录介质的方法，其包括在分散介质中均匀分散粒径不大于0.1μm的α-Al2O3粉末以获得分散体，将该分散体加入用于磁性的涂料组合物层，基本上包含粘合剂和比表面积不小于约40m 2 / g的铁磁性粉末，进一步分散混合物以制备用于磁性层的涂料组合物，并将所得涂料组合物涂布在非磁性载体上以获得具有约2μm或更小干燥厚度的磁性层。所得的磁记录介质表现出优异的电磁特性和改进的耐磨性。

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