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21. 发明授权

US4647501A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4647501A
公开(公告)日：1987-03-03
申请号：US815271
申请日：1985-12-24
申请人： Nobutaka Yamaguchi , Shinobu Iida , Norio Nasu , Katsumi Ryoke , Toshimitu Okutu , Kenichi Masuyama
发明人： Nobutaka Yamaguchi , Shinobu Iida , Norio Nasu , Katsumi Ryoke , Toshimitu Okutu , Kenichi Masuyama
IPC分类号： C09D175/04 , C09D101/18 , C09D127/08 , G11B5/73 , G11B5/735 , G11B5/70 , G11B5/72
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/25 , Y10T428/31565 , Y10T428/3158 , Y10T428/31609
摘要： A magnetic recording material, which comprises a non-magnetic support having provided on one side thereof a magnetic layer and on the other side thereof a backing layer is disclosed. The binder of the backing layer is comprised of a combination of a cellulose resin, a vinylidene chloride resin, a polyurethane resin and a polyisocyanate. Use of the backing layer increases the durability of the tape and aids in preventing drop out.
摘要翻译：公开了一种磁记录材料，其包括在其一侧上设置有磁性层的非磁性支撑体，其另一侧具有背衬层。背衬层的粘合剂由纤维素树脂，偏二氯乙烯树脂，聚氨酯树脂和多异氰酸酯的组合构成。背衬层的使用增加了胶带的耐久性，有助于防止脱落。

22. 发明授权

US5094908A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5094908A
公开(公告)日：1992-03-10
申请号：US558539
申请日：1990-07-27
申请人： Katsumi Ryoke , Masatoshi Takahashi , Toshihiko Miura
发明人： Katsumi Ryoke , Masatoshi Takahashi , Toshihiko Miura
IPC分类号： G11B5/706 , C09D5/23 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , G11B5/708 , G11B5/71 , G11B5/712 , G11B5/714 , G11B5/73 , G11B5/735
CPC分类号： G11B5/735 , G11B5/7085 , G11B5/71 , G11B5/712 , G11B5/714 , Y10S428/90 , Y10T428/25 , Y10T428/257
摘要： A magnetic recording medium is disclosed, which comprises a non-magnetic support having on one surface of the support a backing layer containing carbon black and a binder and on the opposite surface of the support a magnetic recording layer containing a ferromagnetic power and a binder, the ferromagnetic powder being oriented in the magnetic recording layer such that the ratio of the number of diffraction points N(220)/N(113) measured at the surface region of the magnetic layer by high energy electron diffraction is at most 1.65; and the squareness ratio Br/Bm of the magnetic layer is from 0.830 to 0.860 at 25.degree. C. The medium has excellent running durability, S/N ratio, and dropout properties.
摘要翻译：公开了一种磁记录介质，其包括非磁性支撑体，其在支撑体的一个表面上具有包含炭黑和粘合剂的背衬层，并且在支撑体的相对表面上包含含有铁磁性力和粘合剂的磁记录层，铁磁性粉末在磁记录层中取向，使得通过高能电子衍射在磁性层的表面区域测得的衍射点数N（220）/ N（113）的比例为1.65以下; 磁性层的矩形比Br / Bm在25℃为0.830〜0.860。介质具有优异的运行耐久性，S / N比和脱落性能。

23. 发明授权

US4868060A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4868060A
公开(公告)日：1989-09-19
申请号：US38172
申请日：1987-04-14
申请人： Katsumi Ryoke , Toshimitu Okutu , Masatoshi Takahashi , Yasuyuki Yamada
发明人： Katsumi Ryoke , Toshimitu Okutu , Masatoshi Takahashi , Yasuyuki Yamada
IPC分类号： C08G18/79 , C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702
CPC分类号： G11B5/7021 , C08G18/791 , Y10S428/90 , Y10T428/31547
摘要： A magnetic recording medium is described, comprising a non-magnetic support having provided thereon a magnetic layer containing ferromagnetic particles and a binder, said binder of the magnetic layer containing polyisocyanato-isocyanurate as a hardening component.
摘要翻译：描述了一种磁记录介质，包括其上设置有含有铁磁颗粒和粘合剂的磁性层的非磁性载体，所述磁性层的粘合剂含有聚异氰酸酯基异氰脲酸酯作为硬化组分。

24. 发明授权

US5008147A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5008147A
公开(公告)日：1991-04-16
申请号：US216566
申请日：1988-07-08
申请人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto , Kazuo Hasumi
发明人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto , Kazuo Hasumi
IPC分类号： C09D5/23 , G11B5/73 , G11B5/735
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/25 , Y10T428/265 , Y10T428/30 , Y10T428/31609
摘要： A magnetic recording medium comprising a nonmagnetic support having on one surface thereof a magnetic layer and on the opposite surface thereof a backing layer comprising nonmagnetic particles dispersed in a binder, wherein said binder of said backing layer comprises from about 20 to 90 wt % of polycarbonate polyurethane, and said backing layer comprises from about 40 to 200 parts by weight of said binder per 100 parts by weight of said nonmagnetic particles.
摘要翻译：一种磁记录介质，其包括在其一个表面上具有磁性层的非磁性载体，并且在其相对表面上具有包含分散在粘合剂中的非磁性颗粒的背衬层，其中所述背衬层的所述粘合剂包含约20至90重量％的聚碳酸酯聚氨酯和所述背衬层每100重量份所述非磁性颗粒包含约40至200重量份的所述粘合剂。

25. 发明授权

US5063105A Magnetic recording medium in which certain physical properties of the magnetic layer and the backcoat layer are specified 失效
标题翻译：规定了磁性层和背涂层的某些物理特性的磁记录介质
公开(公告)号：US5063105A
公开(公告)日：1991-11-05
申请号：US466547
申请日：1990-01-17
申请人： Katsumi Ryoke , Masatoshi Takahashi , Yasuo Nishikawa
发明人： Katsumi Ryoke , Masatoshi Takahashi , Yasuo Nishikawa
IPC分类号： G11B5/735
CPC分类号： G11B5/735 , Y10S428/90 , Y10T428/265 , Y10T428/31 , Y10T428/31547 , Y10T428/3158
摘要： A magnetic recording medium comprising a nonmagnetic support having formed thereon a magnetic layer containing a ferromagnetic fine powder, a binder, and carbon black and formed on the opposite side of the nonmagnetic support to the magnetic layer-carrying side a backing layer containing a binder and carbon black, wherein (i) the Young's modulus of the magnetic layer is from 600 to 1100 kg/mm.sup.2 and the Young's modulus of the backing layer is from 200 to 400 kg/mm.sup.2, or (ii) the surface free energy of the backing layer is at least 1 dyn/cm higher than the surface free energy of the magnetic layer, the gloss of the magnetic layer is at least 150, and the gloss of the backing layer is from 2 to 7.
摘要翻译：一种包含非磁性载体的磁记录介质，其上形成有含有铁磁性细粉末，粘合剂和炭黑的磁性层，并且在非磁性载体的相对侧上形成有磁性层承载侧，所述背衬层含有粘合剂和炭黑，其中（i）磁性层的杨氏模量为600至1100kg / mm 2，背衬层的杨氏模量为200至400kg / mm 2，或（ii）背衬的表面自由能层比磁性层的表面自由能高至少1dyn / cm，磁性层的光泽度至少为150，背衬层的光泽度为2至7。

26. 发明授权

US4880693A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4880693A
公开(公告)日：1989-11-14
申请号：US170225
申请日：1988-03-21
申请人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto , Tsutomu Okita , Takashi Yoneyama
发明人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto , Tsutomu Okita , Takashi Yoneyama
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
摘要： A magnetic recording medium comprising a support having provided on one surface thereof a magnetic recording layer and on the other surface thereof a backing layer containing non-magnetic particles dispersed in a binder, wherein said binder comprises a vinyl chloride/vinyl acetate copolymer resin 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; n 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，包括在其一个表面上设置有磁记录层的支撑体，在另一表面上具有包含分散在粘合剂中的非磁性颗粒的背衬层，其中所述粘合剂包含氯乙烯/乙酸乙烯酯共聚物树脂，其含有（I）或（II）表示的至少一个基团：其中X表示-COO-基团，-CONH-基团或-C 6 H 4 - 基团; n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。

27. 发明授权

US5089331A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5089331A
公开(公告)日：1992-02-18
申请号：US421434
申请日：1989-10-13
申请人： Katsumi Ryoke , Masatoshi Takahashi , Tsugio Izaki , Masaki Suzuki
发明人： Katsumi Ryoke , Masatoshi Takahashi , Tsugio Izaki , Masaki Suzuki
IPC分类号： G11B5/708 , G11B5/735
CPC分类号： G11B5/735 , G11B5/708 , Y10S428/90 , Y10T428/25 , Y10T428/257 , Y10T428/30
摘要： A magnetic recording medium composed of a non-magnetic support having thereon at least one magnetic layer containing a ferromagnetic fine powder dispersed in a binder, wherein (a) the magnetic layer further contains at least one of (i) carbon black having a sodium content of at most 100 ppm, (ii) carbon black having a chlorine content of less than 400 ppm, and (iii) an abrasive having a Mohn' hardness of at least 8 and a mean particle size of 0.05 to 0.5 .mu.m and a sodium content of at most 100 ppm; (b) the ferromagnetic fine powder is a magnetic metal powder having a sodium content of at most 200 ppm; and/or (c) the magnetic recording medium further has a back layer provided on the side of the non-magnetic support opposite to the magnetic layer, containing carbon black having a chlorine content of at most 300 ppm dispersed in a binder. The magnetic recording medium has superior storage stability, with remarkably limited dropout increase, head clogging, C S/N decrease and RF output decrease.
摘要翻译：一种由非磁性载体组成的磁记录介质，其上具有至少一个含有分散在粘合剂中的铁磁细粉末的磁性层，其中（a）磁性层还包含以下中的至少一种：（i）具有钠含量至多100ppm，（ii）氯含量小于400ppm的炭黑，和（iii）具有至少8的莫氏硬度和0.05至0.5μm的平均粒度的磨料和钠含量至多100ppm; （b）铁磁细粉是钠含量在200ppm以下的磁性金属粉末; 和/或（c）磁记录介质还具有设置在与磁性层相对的非磁性载体一侧的背层，该背层含有分散在粘合剂中的氯含量至多为300ppm的碳黑。磁记录介质具有优良的存储稳定性，显着的压差增加，头堵塞，C / N降低和RF输出减少。

28. 发明授权

US4988562A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US4988562A
公开(公告)日：1991-01-29
申请号：US259366
申请日：1988-10-18
申请人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto
发明人： Katsumi Ryoke , Masatoshi Takahashi , Akihiro Hashimoto
IPC分类号： C09D5/23 , G11B5/708
CPC分类号： G11B5/708 , Y10S428/90 , Y10T428/25 , Y10T428/30
摘要： A magnetic recording medium having excellent running properties and excellent durability is disclosed, which comprises a non-magnetic support having thereon a magnetic layer comprising a ferromagnetic powder and carbon black, said carbon black being a mixture which contains high structure furnace carbon black and acetylene black in the weight ratio of the former to the latter of from 95:5 to 45:55, and said high structure furnace carbon black having properties satisfying the general equations (I) or (II) below:0 120, Y.ltoreq.0.01125X.sup.2 -2.005X+229 (II)wherein Y is the amount of DBP oil absorbed (Ml/100 grams) by said high structure carbon furnace black, X is the specific surface area (m.sup.2 /gram) of said high structure carbon furnace black, and Y.gtoreq.120, wherein W is the amount of DBP oil adsorbed (ml/100 grams) by said actylene black, Z is the specific surface area (m.sup.2 /gram) of said acetylene black, and W.gtoreq.120.
摘要翻译：公开了一种具有优异的运行性能和优异的耐久性的磁记录介质，其包括其上具有包含铁磁粉末和炭黑的磁性层的非磁性载体，所述炭黑是含有高结构炉炭黑和乙炔黑前者与后者的重量比为95:5至45:55，所述高结构炉炭黑具有满足以下通式（I）或（II）的性能：0 / = 0.625X + 75（I）X> 120，Y <0.01125X2-2.005X + 229（II）其中Y是由所述高结构碳炉吸收的DBP油的量（M1 / 100克）黑色，X是所述高结构碳炉黑色的比表面积（m2 / g），Y> = 120，其中W是由所述丙烯黑吸附的DBP油的量（ml / 100克），Z是所述乙炔黑的比表面积（m2 /克），W> / = 120。

29. 发明授权

US4554220A Magnetic recording media 失效
标题翻译：磁记录媒体
公开(公告)号：US4554220A
公开(公告)日：1985-11-19
申请号：US519645
申请日：1983-08-02
申请人： Nobuyuki Yamamoto , Katsumi Ryoke , Nobuo Tsuji , Yuzo Higaki , Toshihisa Okamura
发明人： Nobuyuki Yamamoto , Katsumi Ryoke , Nobuo Tsuji , Yuzo Higaki , Toshihisa Okamura
IPC分类号： C09D5/23 , C09D7/12 , G11B5/71 , G11B5/72 , G11B5/725 , G11B5/70
CPC分类号： G11B5/71
摘要： A magnetic recording medium is described, comprising a non-magnetic support base having positioned thereon a magnetic layer and optionally a non-magnetic layer, wherein at least one layer of the magnetic and non-magnetic layers contains an ester derived from pentaerythritol and/or its condensate and a fatty acid and/or a resin acid. This recording medium has superior surface properties and can be satisfactorily used in tape decks.
摘要翻译：描述了一种磁记录介质，其包括其上定位有磁性层和任选的非磁性层的非磁性支撑基底，其中至少一层磁性和非磁性层含有衍生自季戊四醇和/或其缩合物和脂肪酸和/或树脂酸。该记录介质具有优异的表面性能，可以令人满意地用于磁带机。

30. 发明申请

US20060289335A1 Manufacturing method of tape-form recording medium 审中-公开
标题翻译：带状记录介质的制造方法
公开(公告)号：US20060289335A1
公开(公告)日：2006-12-28
申请号：US11453978
申请日：2006-06-16
申请人： Yutaka Kakuishi , Katsumi Ryoke , Katsuhiko Meguro
发明人： Yutaka Kakuishi , Katsumi Ryoke , Katsuhiko Meguro
IPC分类号： B65D79/00
CPC分类号： G11B5/84
摘要： A manufacturing method of a tape-form recoding medium in the present invention includes a raw web manufacturing process of forming a data recoding layer on one side of a substrate and a back coat layer having a minute convexity on the other side thereof, and thus manufacturing raw web of the tape-form recoding medium; a raw web winding process of winding the raw web with a predetermined tension; a raw web rewinding process of rewinding the raw web; and a raw web heating process of heating the rewound raw web.
摘要翻译：本发明的带状记录介质的制造方法包括在基板的一面上形成数据记录层的原纸幅制造工序和在其另一面上具有微小凸起的背涂层，由此制造带状记录介质的原始网页; 以预定张力卷绕原料纤维网的原料卷绕过程; 将卷筒纸重绕的原料卷筒纸卷绕过程; 以及加热回卷的原料网的原料网加热过程。

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