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61. 发明授权

US5496645A Magnetic recording medium comprising a magnetic metallic thin film and a layer containing a specified fluorine compound and a specified tetrazaindene cyclic compound or thiouracil cyclic compound 失效
标题翻译：包含磁性金属薄膜和含有特定的氟化合物和特定的四唑环状化合物或硫脲嘧啶环状化合物的层的磁记录介质
公开(公告)号：US5496645A
公开(公告)日：1996-03-05
申请号：US371672
申请日：1995-01-12
申请人： Toshio Ishida , Masaki Satake , Tsutomu Okita
发明人： Toshio Ishida , Masaki Satake , Tsutomu Okita
IPC分类号： G11B5/66 , C10M105/54 , C10M105/68 , C10N40/18 , G11B5/72 , G11B5/725 , G11B5/84 , G11B5/00
CPC分类号： G11B5/725 , Y10S428/90 , Y10T428/3154 , Y10T428/31678
摘要： A magnetic recording medium having a magnetic layer on a non-magnetic support, whereby an organic fluorine compound given by the following general formulae (1) or (2) is formed on said magnetic layer: ##STR1## where Rf.sup.1, Rf.sup.2 and Rf.sup.3 each represents a fluoroalkyl group, Y.sup.1, Y.sup.2 and Y.sup.3 each represents --O--, --OCO--, --COO, --NHCO--, or --CONH--and may be the same or different;R.sup.1 represents .dbd.CH.sub.2, .dbd.CH(CH.sub.2).sub.k CH.sub.3, or .dbd.CHCH.dbd.CH.sub.2, and k is a number from 0 to 2;R.sup.2 and R.sup.5 each represents H, and R.sup.2 is not present in case the carbon to which R.sup.2 is bonded has double bond.R.sup.3, R.sup.4 or R.sup.6 each represents H or a hydrocarbon group, which may have double bond.A, B and X each represents (CH.sub.2).sub.k, and k is a number from 0 to 2, and b is a number of 0 or one or higher.Rf.sup.1, Rf.sup.2, Rf.sup.3, Y.sup.1, Y.sup.2, Y.sup.3, A, B, X, R.sup.4, R.sup.5, R.sup.6, k, n, and m may be the same or different, and these may be cis type or trans type.
摘要翻译：一种在非磁性载体上具有磁性层的磁记录介质，由此在所述磁性层上形成由以下通式（1）或（2）给出的有机氟化合物：其中Rf1，Rf2和 Rf 3各自表示氟烷基，Y 1，Y 2和Y 3各自表示-O-，-OCO-，-COO，-NHCO-或-CONH-，可以相同或不同; R1表示= CH2，= CH（CH2）kCH3或= CHCH = CH2，k表示0〜2的数。 R2和R5各自表示H，R2键合的碳为双键时不存在。 R3，R4或R6各自表示H或可具有双键的烃基。 A，B和X各自表示（CH 2）k，k为0〜2的数，b为0以上1以上的数。 Rf1，Rf2，Rf3，Y1，Y2，Y3，A，B，X，R4，R5，R6，k，n和m可以相同或不同，它们可以是顺式或反式。

62. 发明授权

US5458979A Magnetic recording medium having a magnetic layer comprising ferromagnetic particles, polyurethane resin and polyvinylacetal resin 失效
标题翻译：具有磁性层的磁记录介质包括铁磁颗粒，聚氨酯树脂和聚乙烯醇缩醛树脂
公开(公告)号：US5458979A
公开(公告)日：1995-10-17
申请号：US243917
申请日：1994-05-17
申请人： Hiroshi Hashimoto , Masaki Satake , Yuuichirou Murayama , Tsutomu Okita
发明人： Hiroshi Hashimoto , Masaki Satake , Yuuichirou Murayama , Tsutomu Okita
IPC分类号： C09D5/23 , C09D129/14 , C09D175/00 , C09D175/04 , G11B5/702 , G11B5/716 , G11B5/00
CPC分类号： G11B5/7022 , Y10S428/90 , Y10T428/31609 , Y10T428/31935
摘要： A magnetic recording medium comprising a nonmagnetic support having on at least one side thereof a magnetic layer comprising a ferromagnetic particle and a binder, wherein the binder comprises a polyvinyl acetal resin having a polar group and a polyurethane resin having a polar group; and a magnetic recording medium comprising (a) a nonmagnetic support having on at least one side thereof at least one of a lower magnetic layer comprising a ferromagnetic particle and a binder and a nonmagnetic layer comprising a nonmagnetic particle and a binder and (b) an upper magnetic layer comprising a ferromagnetic particle and a binder provided thereon, wherein at least the binder contained in the upper magnetic layer comprises a polyvinyl acetal resin having a polar group and a polyurethane resin having a polar group.
摘要翻译：一种包含非磁性载体的磁记录介质，其至少在其一侧具有包含铁磁颗粒和粘合剂的磁性层，其中所述粘合剂包括具有极性基团的聚乙烯醇缩醛树脂和具有极性基团的聚氨酯树脂; 和磁记录介质，其包含（a）非磁性载体，其至少在其一侧具有包含铁磁颗粒和粘合剂的下磁性层和至少一个包含非磁性颗粒和粘合剂的非磁性层，和（b）上磁性层包括铁磁颗粒和其上提供的粘合剂，其中至少包含在上磁性层中的粘合剂包含具有极性基团的聚乙烯醇缩醛树脂和具有极性基团的聚氨酯树脂。

63. 发明授权

US5079085A Magnetic recording medium containing a binder which is chemically bonded to crosslinked resin fine particles contained in the magnetic layer 失效
标题翻译：含有与磁性层中所含的交联树脂细粒化学结合的粘合剂的磁记录介质
公开(公告)号：US5079085A
公开(公告)日：1992-01-07
申请号：US417334
申请日：1989-10-05
申请人： Hiroshi Hashimoto , Tsutomu Okita
发明人： Hiroshi Hashimoto , Tsutomu Okita
IPC分类号： C09D5/23 , C09D127/04 , C09D127/06 , C09D175/06 , G11B5/702
CPC分类号： G11B5/7021 , Y10S428/90 , Y10T428/254 , Y10T428/2991 , Y10T428/2998
摘要： A magnetic recording medium comprising a nonmagnetic support having provided thereon a magnetic layer comprising ferromagnetic fine powder dispersed in a binder, wherein said magnetic layer contains crosslinked resin fine particles to which a polymer containing an --OH group has been bonded, and an isocyanate compound, said polymer containing an --OH group having an affinity toward said binder and said --OH group reacting with said isocyanate compound to form a chemical bond with said binder.
摘要翻译：一种包含非磁性载体的磁记录介质，其上设置有分散在粘合剂中的铁磁细粉末的磁性层，其中所述磁性层含有已经结合有-OH基团的聚合物的交联树脂细颗粒和异氰酸酯化合物，所述聚合物含有对所述粘合剂具有亲和性的-OH基团，所述-OH基团与所述异氰酸酯化合物反应以与所述粘合剂形成化学键。

64. 发明授权

US5057373A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5057373A
公开(公告)日：1991-10-15
申请号：US330578
申请日：1989-03-30
申请人： Fumihiro Tokunaga , Jun Nakagawa , Tsutomu Okita , Toshio Kawamata
发明人： Fumihiro Tokunaga , Jun Nakagawa , Tsutomu Okita , Toshio Kawamata
IPC分类号： C09D5/23 , C09D127/04 , C09D127/06 , C09D171/00 , C09D171/12 , C09D175/08 , C10M105/74 , C10N40/18 , G11B5/702
CPC分类号： G11B5/7022 , Y10S428/90 , Y10T428/31511 , Y10T428/31609
摘要： A magnetic recording medium comprising a nonmagnetic support having thereon a magnetic layer comprising a binder and ferromagnetic particles dispersed therein, wherein the binder comprises (a) a vinyl chloride resin, (b) a phenoxy resin, (c) a polycarbonate polyurethane resin and (d) a polyisocyanate; and said magnetic layer further comprises at least one lubricating agent selected from the group consisting of polyalkylnenoxide alkylphosphate, an alkali salt thereof, and lecithin.
摘要翻译：一种包含非磁性载体的磁性记录介质，其上具有分散在其中的粘合剂和铁磁颗粒的磁性层，其中所述粘合剂包括（a）氯乙烯树脂，（b）苯氧基树脂，（c）聚碳酸酯聚氨酯树脂和（ d）多异氰酸酯; 并且所述磁性层还包含至少一种选自聚烷氧基化烷基磷酸盐，其碱金属盐和卵磷脂的润滑剂。

65. 发明授权

US4976989A Method for preparing a magnetic recording medium 失效
标题翻译：磁记录介质的制备方法
公开(公告)号：US4976989A
公开(公告)日：1990-12-11
申请号：US532158
申请日：1990-06-04
申请人： Masashi Aonuma , Tsutomu Okita , Hiroshi Hashimoto , Kingo Kobayashi
发明人： Masashi Aonuma , Tsutomu Okita , Hiroshi Hashimoto , Kingo Kobayashi
IPC分类号： G11B5/702 , G11B5/842
CPC分类号： G11B5/842 , G11B5/7026
摘要： A method for preparing a magnetic recording medium comprises the steps of coating, on a non-magnetic support, a magnetic layer mainly containing ferromagnetic particles and a binder polymerizable by radiation exposure, conducting a calendering treatment, and thereafter conducting a radiation exposure treatment without winding up the magnetic layer.
摘要翻译：一种制备磁记录介质的方法包括以下步骤：在非磁性载体上涂覆主要包含铁磁颗粒的磁性层和通过辐射曝光可聚合的粘合剂，进行压延处理，然后进行辐射曝光处理而不缠绕磁层。

66. 发明授权

US4937098A Method for manufacturing 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：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。

67. 发明授权

US4880692A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4880692A
公开(公告)日：1989-11-14
申请号：US171360
申请日：1988-03-21
申请人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto , Tsutomu Okita , Kazuko Hanai
发明人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto , Tsutomu Okita , Kazuko Hanai
IPC分类号： C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , G11B5/73 , G11B5/735
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/25 , Y10T428/265
摘要： A magnetic recording medium comprising a support having provided on one surface thereof a magnetic recording layer containing ferromagnetic particles dispersed in a binder and on the other surface thereof a backing layer, wherein said binder comprises a vinyl chloride/vinyl acetate copolymer reisn containing at least one group represented by formula (I) or (II): ##STR1## wherein X represents a --COO-- group, a --CONH-- group, or a --C.sub.6 H.sub.4 -- group; x represents an integer of from 1 to 10; R.sub.1, R.sub.2, and R.sub.3 each represents a hydrogen atom, an alkyl group having from 1 to 10 carbon atoms, or an alkyl derivative having from 1 to 10 carbon atoms, or R.sub.1, R.sub.2, and R.sub.3 may be combined to each other to form a heterocycric ring; and Y.sup..crclbar. represents a halogen atom, ClO.sub.4.sup..crclbar., or HgI.sub.3.sup..crclbar. ; or Y.sup..crclbar. is bound to R.sub.2, R.sub.2 represents an alkylene group having from 1 to 10 carbon atoms, and Y.sup..crclbar. represents a --COO.sup..crclbar. group, an --SO.sub.3.sup..crclbar. group, or an --OSO.sub.3.sup..crclbar. group.
摘要翻译：一种磁记录介质，其包括在其一个表面上设置有包含分散在粘合剂中的铁磁颗粒的磁记录层和在其另一表面上的背衬层的支撑体，其中所述粘合剂包括含有至少一个的氯乙烯/乙酸乙烯酯共聚物（I）或（II）表示的基团：其中X表示-COO-基团，-CONH-基团或-C 6 H 4 - 基团; x表示1〜10的整数， R1，R2和R3各自表示氢原子，具有1至10个碳原子的烷基或具有1至10个碳原子的烷基衍生物，或者R1，R2和R3可以彼此结合形成杂环; Y（ - ）表示卤素原子，ClO 4（ - ）或HgI 3（ - ）; 或Y（ - ）与R 2结合，R 2表示具有1〜10个碳原子的亚烷基，Y（ - ）表示-COO（ - ）基，-SO 3（ - ）基或-OSO 3（ - ）组。

68. 发明授权

US4873138A Metallic thin film type magnetic recording medium 失效
标题翻译：金属薄膜型磁记录介质
公开(公告)号：US4873138A
公开(公告)日：1989-10-10
申请号：US309327
申请日：1988-10-18
申请人： Tsutomu Okita
发明人： Tsutomu Okita
IPC分类号： C23C14/00 , C23C14/24 , G11B5/64 , G11B5/72 , G11B5/84
CPC分类号： G11B5/72 , Y10S428/90 , Y10T428/265
摘要： A magnetic recording medium with a magnetic thin film as a magnetic recording layer is described. The medium is comprised of a polymer support, a ferromagnetic metal thin film on the support, a plasma polymerization layer 20 to 270 .ANG. in thickness on the thin film, and a lubricating layer on the plasma polymerization layer. The lubricating layer is made of at least one member selected from compounds having a carbon-carbon unsaturated group at the terminal thereof and containing at least 8 carbon atoms. This magnetic recording medium is superior in corrosion protection, running properties, and durability, and moreover, has good electromagnetic properties.
摘要翻译：描述了具有磁性薄膜作为磁记录层的磁记录介质。介质由聚合物载体，载体上的强磁性金属薄膜，薄膜上的厚度为20至270的等离子体聚合层和等离子体聚合层上的润滑层组成。润滑层由选自在其末端具有碳 - 碳不饱和基团并且含有至少8个碳原子的化合物中的至少一种构成。该磁记录介质的腐蚀保护性，运行性能和耐久性优异，而且具有良好的电磁特性。

69. 发明授权

US4837081A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4837081A
公开(公告)日：1989-06-06
申请号：US39123
申请日：1987-04-16
申请人： Yasuyuki Yamada , Hajime Miyatsuka , Tsutomu Okita , Nobuo Tsuji
发明人： Yasuyuki Yamada , Hajime Miyatsuka , Tsutomu Okita , Nobuo Tsuji
IPC分类号： C08G18/44 , C08L75/04 , C09D5/23 , C09D175/00 , C09D175/04 , C09D175/08 , G11B5/702 , G11B5/706 , G11B5/708
CPC分类号： G11B5/70636 , C08G18/44 , C08L75/04 , G11B5/7022 , Y10S428/90 , Y10T428/257 , Y10T428/31507 , Y10T428/31609
摘要： A magnetic recording medium is described, comprising a non-magnetic support having provided thereon a magnetic layer containing CrO.sub.2 fine particles and a binder, wherein the binder comprises polycarbonate polyurethane in an amount of from about 30 to about 90 wt %, based on the total weight of said binder.
摘要翻译：描述了一种磁记录介质，其包括在其上设置有含有CrO 2微粒和粘合剂的磁性层的非磁性载体，其中所述粘合剂包含约30至约90重量％的聚碳酸酯聚氨酯，基于总计所述粘合剂的重量。

70. 发明授权

US4812351A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4812351A
公开(公告)日：1989-03-14
申请号：US191804
申请日：1988-05-03
申请人： Tsutomu Okita , Masashi Aonuma , Hiroshi Hashimoto
发明人： Tsutomu Okita , Masashi Aonuma , Hiroshi Hashimoto
IPC分类号： G11B5/735 , G11B5/70
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/24355 , Y10T428/265
摘要： A magnetic recording medium is described, comprising a non-magnetic support having a surface roughness of 0.02 .mu.m or less, a magnetic layer on the surface of the support and a backing layer on a surface of the support opposite to the surface on which the magnetic layer is formed, wherein the backing layer is formed by exposing to radiation a layer comprising (A) non-magnetic particles and (B) a radiation polymerizable compound.
摘要翻译：描述了一种磁记录介质，其包括具有0.02μm或更小的表面粗糙度的非磁性支撑体，支撑体表面上的磁性层和与表面相反的表面的表面上的背衬层，形成磁性层，其中通过将包含（A）非磁性颗粒和（B）可辐射聚合化合物的层暴露于辐射而形成背衬层。

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