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41. 发明授权

US4619855A Magnetic recording medium with electron beam cured magnetic layer 失效
标题翻译：具有电子束固化磁性层的磁记录介质
公开(公告)号：US4619855A
公开(公告)日：1986-10-28
申请号：US542931
申请日：1983-10-18
申请人： Tsutomu Okita , Nobutaka Yamaguchi , Hiroshi Hashimoto
发明人： Tsutomu Okita , Nobutaka Yamaguchi , Hiroshi Hashimoto
IPC分类号： C09D5/23 , C09D101/18 , C09D127/04 , C09D127/06 , C09D175/00 , C09D175/04 , G11B5/702 , G11B5/73 , G11B5/84 , G11B5/70
CPC分类号： G11B5/7026 , G11B5/7022 , G11B5/84 , Y10S428/90 , Y10T428/24372 , Y10T428/24413 , Y10T428/31609 , Y10T428/31935
摘要： A magnetic recording medium is disclosed. The medium is comprised of a support base having an average center line roughness (Ra) of 0.035 .mu.m or less which has coated thereon a magnetic layer. The magnetic layer is comprised of ferromagnetic fine particles dispersed in a binder comprising (1) a polymer selected from the group consisting of nitrocellulose resins, vinyl chloride-vinyl acetate resins and vinyl chloride-vinyl propionate type resins; (2) a urethane resin; and (3) a compound having 2 or more acrylate groups or methacrylate groups in the molecule thereof. The magnetic layer is cured by radiation with electron beams and has excellent electromagnetic properties as well as high durability. The magnetic medium provides less abrasiveness and the magnetic coating composition is stable and homogeneous during storage.
摘要翻译：公开了一种磁记录介质。该介质由平均中心线粗糙度（Ra）为0.035μm或更小的支撑基底组成，其上涂覆有磁性层。磁性层由分散在粘合剂中的铁磁细颗粒组成，包括（1）选自硝基纤维素树脂，氯乙烯 - 乙酸乙烯酯树脂和氯乙烯 - 丙酸乙烯酯类树脂的聚合物; （2）聚氨酯树脂; 和（3）在其分子中具有2个以上丙烯酸酯基或甲基丙烯酸酯基的化合物。磁性层通过电子束辐射固化，具有优异的电磁特性以及高耐久性。磁性介质提供较少的磨损性，并且磁性涂料组合物在储存期间是稳定和均匀的。

42. 发明授权

US4581270A Flexible magnetic disk 失效
标题翻译：灵活磁盘
公开(公告)号：US4581270A
公开(公告)日：1986-04-08
申请号：US632151
申请日：1984-07-18
申请人： Mikihiko Kato , Tsutomu Okita , Shigeo Komine , Yasutoshi Okuzawa , Kazuhiko Morita
发明人： Mikihiko Kato , Tsutomu Okita , Shigeo Komine , Yasutoshi Okuzawa , Kazuhiko Morita
IPC分类号： G11B5/72 , G11B5/725 , G11B5/82 , G11B23/00 , G11B23/02 , G11B23/033
CPC分类号： G11B23/0035 , G11B5/825 , Y10S428/90 , Y10T428/24322 , Y10T428/24802 , Y10T428/265 , Y10T428/31609 , Y10T428/31786
摘要： A flexible magnetic disc comprising a magnetic sheet having on at least a part thereof a protective layer comprising (a) a straight or branched chain compound having an acrylic or methacrylic acid ester moiety on the end of at least one of the principal chain and the side chain, (b) an aromatic ketone, and (c) a silicone lubricant, said layer being hardenable by photopolymerization.
摘要翻译：一种柔性磁盘，包括在其至少一部分上具有保护层的磁性片，所述保护层包含（a）在至少一个主链和侧面上具有丙烯酸或甲基丙烯酸酯部分的直链或支链化合物链，（b）芳族酮，和（c）硅氧烷润滑剂，所述层可通过光聚合固化。

43. 发明授权

US4571361A Antistatic plastic films 失效
标题翻译：防静电塑料薄膜
公开(公告)号：US4571361A
公开(公告)日：1986-02-18
申请号：US366037
申请日：1982-04-06
申请人： Hideo Kawaguchi , Tsutomu Okita , Hiroyuki Tamaki
发明人： Hideo Kawaguchi , Tsutomu Okita , Hiroyuki Tamaki
IPC分类号： B32B27/16 , B32B27/18 , C08F2/44 , C08J7/04 , G03C1/85 , G03G5/10 , H01B1/20 , B32B5/16 , B32B15/00
CPC分类号： C08F2/44 , G03C1/853 , G03G5/104 , H01B1/20 , Y10T428/25 , Y10T428/256 , Y10T428/257 , Y10T428/31681 , Y10T428/31692 , Y10T428/31797
摘要： An antistatic plastic film is described. This comprised of a plastic film and at least one coating layer provided on the surface of the plastic film. The coating layer is prepared by dispersing electrically conductive fine particles in a compound containing an unsaturated bond capable of undergoing polymerization on irradiation with radiation or a binder containing the polymerizable compound. The electrically conductive fine particle comprising crystalline metal oxide of Zn, Ti, Sn, In, Si, Mo or W and/or composite oxide thereof. The resulting dispersion is coated on the plastic film, polymerized and cured by irradiation of the layer with radiation. The film can be easily, quickly and economically produced and is substantially transparent while providing improved antistatic properties good mechanical strength.
摘要翻译：描述了一种抗静电塑料薄膜。这包括塑料膜和设置在塑料膜表面上的至少一个涂层。通过将导电性细颗粒分散在含辐射的能够进行聚合的不饱和键的化合物或含有可聚合化合物的粘合剂中来制备涂层。包含Zn，Ti，Sn，In，Si，Mo或W的结晶金属氧化物的导电性微粒和/或其复合氧化物。将所得分散体涂覆在塑料膜上，通过用辐射照射层进行聚合和固化。该膜可以容易，快速和经济地制造并且基本上是透明的，同时提供改善的抗静电性能良好的机械强度。

44. 发明授权

US4548833A 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：US4548833A
公开(公告)日：1985-10-22
申请号：US461702
申请日：1983-01-28
申请人： Hiroshi Hashimoto , Tsutomu Okita
发明人： Hiroshi Hashimoto , Tsutomu Okita
IPC分类号： G11B5/70 , C09D5/23 , C09D175/00 , C09D175/14 , G11B5/73 , G11B5/842 , G11B5/845 , B05D3/06
CPC分类号： G11B5/845 , Y10S428/90
摘要： A method for preparing a magnetic recording medium is disclosed. The method includes providing a support base and a particular coating composition for the base. The composition is comprised of a ferromagnetic powder, a binder containing a compound capable of being polymerized with electron beam irradiation, and a solvent. The composition has apparent viscosity of about 1 to 150 centipoise at a shearing speed of 4000 sec.sup.-1. After coating the composition on the support base, the coated layer is subjected to magnetic orientation. During orientation or shortly thereafter the coated layer is subjected to electrom beam irradiation and then dried in order to evaporate the solvent. The magnetic recording medium prepared has excellent dispersibility of the ferromagnetic fine powder within the binder, which further provides a smooth surface and excellent electrical properties as well as anti-abrasion properties.
摘要翻译：公开了一种制备磁记录介质的方法。该方法包括提供支撑基底和用于基底的特定涂层组合物。该组合物由铁磁粉末，含有能够用电子束照射聚合的化合物的粘合剂和溶剂组成。该组合物在4000sec -1的剪切速度下具有约1至150厘泊的表观粘度。将组合物涂布在支撑基底上之后，涂覆层经受磁性取向。在取向期间或不久之后，对涂层进行电磁辐射照射，然后干燥以蒸发溶剂。制备的磁记录介质具有极好的铁磁细粉在粘合剂中的分散性，这进一步提供了光滑的表面和优异的电性能以及抗磨损性能。

45. 发明授权

US4520070A Magnetic recording medium and process for producing same 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US4520070A
公开(公告)日：1985-05-28
申请号：US350509
申请日：1982-02-19
申请人： Nobuyuki Yamamoto , Yasuo Nishikawa , Kyoichi Naruo , Tsutomu Okita
发明人： Nobuyuki Yamamoto , Yasuo Nishikawa , Kyoichi Naruo , Tsutomu Okita
IPC分类号： G11B5/66 , C10M105/04 , C10M105/24 , C10N30/06 , C10N40/18 , G11B5/64 , G11B5/72 , G11B5/725 , G11B5/73 , G11B5/735 , G11B5/84 , B05D5/12
CPC分类号： G11B5/738 , G11B5/725 , G11B5/84 , Y10S428/90 , Y10T428/265 , Y10T428/273 , Y10T428/31565 , Y10T428/31605
摘要： A magnetic recording medium having a thin magnetic film on a non-magnetic support base is disclosed. A layer of a compound which contains at least two isocyanate groups is formed in connection with the medium, and may be formed on either the surface of the metal film or the surface of the base opposite the metal film, or both. The resulting medium has excellent running properties, wear resistance and electro-to-magnetic conversion characteristics which are maintained after repeated use. The medium is formed by providing a non-magnetic support base surface and coating that surface with a thin magnetic metal film by use of a process such as vapor deposition. A solution of a compound containing at least two isocyanate groups is then applied to the medium within a solvent after which a heat treatment is carried out, thus forming the layer of compound containing the isocyanate groups.
摘要翻译：公开了一种在非磁性支撑基底上具有薄磁膜的磁记录介质。与介质结合形成含有至少两个异氰酸酯基的化合物层，并且可以形成在金属膜的表面或与金属膜相反的基底表面上，或两者之间。所得到的介质具有优异的运行性能，耐磨性和电 - 磁转换特性，其在重复使用后保持。通过提供非磁性支撑基底表面并通过使用诸如气相沉积的方法用薄的磁性金属膜涂覆该表面来形成介质。然后将含有至少两个异氰酸酯基团的化合物的溶液施加到溶剂中的介质中，然后进行热处理，从而形成含有异氰酸酯基团的化合物层。

46. 发明授权

US4486500A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4486500A
公开(公告)日：1984-12-04
申请号：US542899
申请日：1983-10-19
申请人： Kyoichi Naruo , Nobuyuki Yamamoto , Tsutomu Okita
发明人： Kyoichi Naruo , Nobuyuki Yamamoto , Tsutomu Okita
IPC分类号： G11B5/66 , C08F2/46 , C10M107/22 , C10N40/18 , G11B5/64 , G11B5/72 , G11B5/725 , G11B5/735 , G11B5/84 , B05D5/12
CPC分类号： G11B5/725 , G11B5/84 , Y10S428/90 , Y10T428/265
摘要： A magnetic recording medium having a thin magnetic metal film on a non-magnetic base is disclosed. A surface layer is formed on either the thin magnetic metal film or the other side of the base or both by irradiating a coating of a polymer having an unsaturated bond polymerizable by radiation. A process for producing such magnetic recording medium is also disclosed.
摘要翻译：公开了一种在非磁性基底上具有薄磁性金属膜的磁记录介质。通过照射通过辐射可聚合的具有不饱和键的聚合物的涂层，在薄的磁性金属膜或基底的另一侧或两者上形成表面层。还公开了制造这种磁记录介质的方法。

47. 发明授权

US4482610A Magnetic recording medium and process for producing the same 失效
标题翻译：磁记录介质及其制造方法
公开(公告)号：US4482610A
公开(公告)日：1984-11-13
申请号：US345907
申请日：1982-02-04
申请人： Tsutomu Okita , Kyoichi Naruo
发明人： Tsutomu Okita , Kyoichi Naruo
IPC分类号： C09D5/23 , G11B5/702 , G11B5/842 , H01F10/02
CPC分类号： G11B5/7026 , Y10S428/90 , Y10T428/31797
摘要： A magnetic recording medium and a process for producing a magnetic recording medium are disclosed, the process comprising the steps of applying to a non-magnetic base a composition comprising (1) a compound having an unsaturated bond polymerizable by electron beams, (2) a compound having one or more carbon-carbon unsaturated bonds, (3) ferromagnetic particles and (4) an organic solvent, and polymerizing and curing the applied coating by irradiation with electron beams, said compound having one or more unsaturated bonds is such that at least 10 wt % thereof is adsorbed onto the ferromagnetic particles in a mixture of 10 parts by weight of a 1 wt % solution of the compound and 1 part by weight of the ferromagnetic particles.
摘要翻译：公开了磁记录介质和制造磁记录介质的方法，该方法包括以下步骤：向非磁性基底施加组合物，该组合物包含（1）具有可通过电子束聚合的不饱和键的化合物，（2）具有一个或多个碳 - 碳不饱和键的化合物，（3）铁磁颗粒和（4）有机溶剂，并且通过用电子束照射聚合和固化涂覆的涂层，所述具有一个或多个不饱和键的化合物至少使得至少 10重量％以10重量份的化合物1重量％和1重量份铁磁性颗粒的混合物吸附在铁磁性颗粒上。

48. 发明授权

US4405481A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4405481A
公开(公告)日：1983-09-20
申请号：US220215
申请日：1980-12-24
申请人： Yasuyuki Yamada , Nobuo Tsuji , Tsutomu Okita , Yasuo Mukunoki
发明人： Yasuyuki Yamada , Nobuo Tsuji , Tsutomu Okita , Yasuo Mukunoki
IPC分类号： C09D5/23 , C09D7/12 , G11B5/708 , G11B5/71 , B05D5/12
CPC分类号： G11B5/7085 , G11B5/71 , Y10S428/90 , Y10T428/25 , Y10T428/256 , Y10T428/257
摘要： A magnetic recording medium containing a ferromagnetic powder, a binder and a lubricant is disclosed. The lubricant comprises (1) abrasive particles having a Mohs' hardness of about 6 or more and a particle size of about 5 microns or less and (2) an ester of an aliphatic acid having 20 to 26 carbon atoms and a monovalent alcohol having 1 to 26 carbon atoms.
摘要翻译：公开了含有铁磁粉末，粘合剂和润滑剂的磁记录介质。润滑剂包括（1）莫氏硬度为约6或更大并且粒度为约5微米或更小的磨料颗粒和（2）具有20至26个碳原子的脂族酸的酯和具有1个至26个碳原子。

49. 发明授权

US4191679A Photographic polyester film support 失效
标题翻译：摄影聚酯薄膜支持
公开(公告)号：US4191679A
公开(公告)日：1980-03-04
申请号：US938161
申请日：1978-08-30
申请人： Tsutomu Okita , Masami Satou , Noburo Hibino , Kazunobu Katoh , Masatoshi Sugiyama
发明人： Tsutomu Okita , Masami Satou , Noburo Hibino , Kazunobu Katoh , Masatoshi Sugiyama
IPC分类号： C08L67/00 , C09B1/42 , G03C1/795 , G03C1/83 , C08K5/08 , G03C1/84
CPC分类号： G03C1/83
摘要： A photographic polyester film support which is dyed with (a) a dye having a main absorption peak in the wavelength range of about 530 to about 570 nm, (b) a dye having a main absorption peak in the wavelength range of about 640 to about 680 nm and (c) a dye having a main absorption peak in the wavelength range of about 420 to about 460 nm which is represented by the formula (I) below: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, each represents --H, --OH, --NH.sub.2, --NHR.sub.7, --NR.sub.7 R.sub.8, --Cl, --Br, an alkyl group having 4 or less carbon atoms or an alkoxy group having 4 or less carbon atoms; and R.sub.7 and R.sub.8, which may be the same or different, each represents an alkyl group having 4 or less carbon atoms or an aryl group.
摘要翻译：一种照相聚酯膜载体，其用（a）在约530至约570nm的波长范围内具有主要吸收峰的染料染色，（b）在约640至约波长范围内具有主吸收峰的染料 680nm，和（c）由下式（I）表示的在大约420至大约460nm的波长范围内具有主吸收峰的染料：其中R1，R2，R3，R4， R 5和R 6可以相同或不同，表示-H，-OH，-NH2，-NHR7，-NR7R8，-Cl，-Br，具有4个或更少碳原子的烷基或具有4个或更少的碳原子; 和可以相同或不同的R 7和R 8各自表示具有4个以下碳原子的烷基或芳基。

50. 发明授权

US5141808A Magnetic recording medium having two magnetic layers each containing a specified polyurethane resin 失效
标题翻译：具有两个磁性层的磁记录介质各自含有特定的聚氨酯树脂
公开(公告)号：US5141808A
公开(公告)日：1992-08-25
申请号：US309576
申请日：1989-02-13
申请人： Hiroshi Hashimoto , Kazuo Hasumi , Tsutomu Okita
发明人： Hiroshi Hashimoto , Kazuo Hasumi , Tsutomu Okita
IPC分类号： C09D5/23 , C09D175/00 , C09D175/04 , G11B5/702 , G11B5/716
CPC分类号： G11B5/716 , G11B5/7021 , Y10S428/90 , Y10T428/265 , Y10T428/31554 , Y10T428/3158 , Y10T428/31609
摘要： A magnetic recording medium comprising a nonmagnetic support having thereon a lower magnetic layer and a upper magnetic layer, in this order, wherein the lower magnetic layer contains as a binder a polyurethane reisn having a number average molecular weight of less than 25,000, and the upper magnetic layer contains as a binder (a) a polyurethane resin having (i) at least three organic groups having an active hydrogen per polyurethane molecule and (ii) a number average molecular weight of 25,000 or more, and (b) a polyisocyanate.
摘要翻译：一种磁记录介质，其具有依次具有下磁性层和上磁性层的非磁性载体，其中下磁性层含有作为粘合剂的数均分子量小于25,000的聚氨酯弹性体，磁性层包含作为粘合剂的（a）聚氨酯树脂，其具有（i）至少三个每个聚氨酯分子具有活性氢的有机基团和（ii）数均分子量为25,000以上，和（b）多异氰酸酯。

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