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1. 发明授权

US5705268A Magnetic recording medium with magnetic powder in lower magnetic layer having protective image diameters 失效
标题翻译：具有保护图像直径的下磁性层中的磁粉的磁记录介质
公开(公告)号：US5705268A
公开(公告)日：1998-01-06
申请号：US579405
申请日：1995-12-27
申请人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
发明人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
IPC分类号： C09D5/23 , C09D7/12 , G11B5/714 , G11B5/716 , G11B5/738 , G11B5/66 , G11B5/70
CPC分类号： G11B5/714 , G11B5/716 , Y10S428/90 , Y10T428/265 , Y10T428/2982
摘要： A magnetic recording medium comprising a nonmagnetic support having formed thereon a plurality of magnetic layers including a top magnetic layer and an intermediate magnetic layer adjacent to the top magnetic layer, wherein the intermediate magnetic layer contains soft magnetic powder, the soft magnetic powder having, in its projective image, an average longer diameter and a standard deviation of the longer diameter .DELTA.L satisfying the relationship represented by formula (1), and an average shorter diameter and a standard deviation of the shorter diameter .DELTA.W satisfying the relationship represented by formula (2): 0.05.ltoreq..DELTA.L/ .ltoreq.0.8 (1) 0.05.ltoreq..DELTA.W/ .ltoreq.0.8 (2)
摘要翻译：一种磁记录介质，包括在其上形成有多个磁性层的非磁性载体，所述多个磁性层包括顶部磁性层和与顶部磁性层相邻的中间磁性层，其中所述中间磁性层包含软磁性粉末，其投影图像，平均长直径和长直径ΔDTAL的标准偏差满足式（1）所示的关系，平均短直径和短径DELTA W的标准偏差满足由式（2）表示的关系：0.05

2. 发明授权

US07785654B2 Method of producing cosmetics-impregnated sheet 有权
标题翻译：生产化妆品浸渍片材的方法
公开(公告)号：US07785654B2
公开(公告)日：2010-08-31
申请号：US10471564
申请日：2002-03-14
申请人： Yoshiyuki Nabata , Takeshi Nakajima , Hidehiko Nakayama , Masayasu Sato , Takashi Kawai , Mitsuo Shimizu
发明人： Yoshiyuki Nabata , Takeshi Nakajima , Hidehiko Nakayama , Masayasu Sato , Takashi Kawai , Mitsuo Shimizu
IPC分类号： A45D40/28 , A61Q1/00 , A61F13/02 , A61K8/00 , A61K8/18
CPC分类号： A61K8/8147 , A61K8/0208 , A61Q17/04 , A61Q19/00
摘要： A process for producing a cosmetic-impregnated sheet which comprises applying and infiltrating a cosmetic base to and into a base sheet having on the surface thereof a retentive sheet capable of absorbing and retaining the cosmetic base at a shear rate of 102 to 106 s−1, the cosmetic base being applied to and infiltrated into the retentive sheet of the base sheet, and the cosmetic base, when subjected to a steady shear deformation at a shear rate of 2 s−1 for 100 seconds followed by a steady shear deformation at a stepwise increased shear rate of 20 s−1, showing no shear stress growth or showing such a shear stress growth that the difference between the peak shear stress B at a shear rate of 20 s−1 and the equilibrium shear stress A at the same shear rate, B−A, is 20% or smaller of the equilibrium shear stress A in the transition between the two shear rates.
摘要翻译：一种美容用浸渍片材的制造方法，其特征在于，将化妆品基材涂敷于基材片的表面，并将其浸渍在能够以102〜106s -1的剪切速度吸收和保持化妆品基材的保持片材当化妆品基质在2秒-1的剪切速度下经受稳定的剪切变形100秒钟后，施加到基片的保持性片材中并渗透到基片的保持性片材中，随后在逐步增加的剪切速率为20s-1，表明没有剪切应力生长或显示出剪切应力增长，剪切速率为20s-1时的峰值剪切应力B与剪切应力A在相同剪切力下的平衡剪切应力A之间的差异速率B-A在两个剪切速率之间的转变中是平衡剪切应力A的20％或更小。

3. 发明授权

US5792570A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5792570A
公开(公告)日：1998-08-11
申请号：US743852
申请日：1996-11-05
申请人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
发明人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
IPC分类号： C09D5/23 , G11B5/706 , G11B5/714 , G11B5/738 , H01F1/047 , G11B5/66
CPC分类号： G11B5/70678 , G11B5/70615 , G11B5/70621 , G11B5/714 , Y10T428/25
摘要： A magnetic recording medium comprising a substrate and a magnetic layer provided thereon, the magnetic layer containing: a binder, (a) an acicular ferromagnetic metal powder having an average major axis length of 0.05 to 0.14 .mu.m and a coercive force of 1700 to 2300 Oe or (c) a tabular hexagonal ferrite powder having a tabular diameter of 0.01 to 0.07 .mu.m and a coercive force of 1400 to 2200 Oe, and (b) a spherical or amorphous spinel ferrite powder having an average particle size of 0.005 to 0.09 .mu.m and a coercive force of more than 0 and less than 150 Oe, wherein the mixing ratio of the spinel ferrite powder (b) to the ferromagnetic metal powder (a) or the hexagonal ferrite powder (c), i.e., (b)/(a) or (b)/(c), is 0.03 to 0.3 by weight.
摘要翻译：一种磁记录介质，包括基板和设置在其上的磁性层，所述磁性层包含：粘合剂，（a）平均长轴长度为0.05至0.14μm，矫顽力为1700至2300的针状铁磁性金属粉末 Oe或（c）平板状直径为0.01〜0.07μm，矫顽力为1400〜2200Oe的平板状六角铁氧体粉末，（b）平均粒径为0.005〜0.09的球状或无定形尖晶石铁氧体粉末（b）与强磁性金属粉末（a）或六方晶系铁氧体粉末（c）的混合比例（即，（b））的矫顽力大于0小于150Oe， /（a）或（b）/（c）为0.03〜0.3重量份。

4. 发明授权

US5718978A Magnetic recording medium having a magnetic layer which includes magnetic particles, polurethane resin, vinyl chloride copolymer, and an amine compound 失效
标题翻译：具有磁性层的磁记录介质包括磁性颗粒，聚氨酯树脂，氯乙烯共聚物和胺化合物
公开(公告)号：US5718978A
公开(公告)日：1998-02-17
申请号：US592521
申请日：1996-01-24
申请人： Kazutaka Yamashita , Hidehiko Nakayama , Akira Ishikawa
发明人： Kazutaka Yamashita , Hidehiko Nakayama , Akira Ishikawa
IPC分类号： G11B5/702
CPC分类号： G11B5/7021 , Y10S428/90 , Y10T428/31609 , Y10T428/31935
摘要： The present invention provides a magnetic recording medium which allows high density recording and exhibits excellent output characteristics and durability. A novel magnetic recording medium comprising a support and a magnetic layer provided on said support is provided, characterized in that said magnetic layer is formed by a magnetic coating composition comprising: (a) a polyurethane resin obtained by protecting isocyanate groups in an isocyanate terminated polyurethane prepolymer by an oxime compound; and (b) a compound containing one or more primary amino groups per molecule.
摘要翻译：本发明提供一种允许高密度记录并表现出优异的输出特性和耐久性的磁记录介质。提供一种包含支撑体和设置在所述支撑体上的磁性层的新型磁记录介质，其特征在于，所述磁性层由磁性涂料组合物形成，所述磁性涂料组合物包含：（a）通过将异氰酸酯基团保护在异氰酸酯封端的聚氨酯肟化合物预聚物; 和（b）每分子含有一个或多个伯氨基的化合物。

5. 发明授权

US5629075A Magnetic recording medium having a substrate containing magnetic powder 失效
标题翻译：具有含有磁性粉末的基材的磁记录介质
公开(公告)号：US5629075A
公开(公告)日：1997-05-13
申请号：US427870
申请日：1995-04-26
申请人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
发明人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
IPC分类号： G11B5/70 , G11B5/716 , G11B5/73 , G11B5/738 , G11B5/704
CPC分类号： G11B5/70 , G11B5/716 , G11B5/7305 , G11B5/738 , Y10S428/90 , Y10T428/24975 , Y10T428/256 , Y10T428/257
摘要： Disclosed is a magnetic recording medium comprising a magnetic support 1 containing a magnetic powder, and at least a nonmagnetic layer 2 provided on the magnetic support 1 and a magnetic layer 3 provided on the nonmagnetic layer 2. The magnetic powder comprises a ferromagnetic powder, preferably a powder of soft magnetic materials and/or a powder of iron oxide with low remanent induction. The medium is suitable for high-density recording, especially exhibiting an excellent output characteristic.
摘要翻译：公开了一种磁记录介质，其包含磁性载体1，其包含磁性粉末，以及至少设置在磁性载体1上的非磁性层2和设置在非磁性层2上的磁性层3。磁性粉末包含铁磁粉末，优选软磁性材料粉末和/或具有低残留感应的氧化铁粉末。该介质适用于高密度记录，特别是表现出优异的输出特性。

6. 发明授权

US6063489A Magnetic recording medium comprising a mixed magnetic region having a thickness relative to the total thickness of magnetic layers 失效
标题翻译：磁记录介质包括具有相对于磁性层的总厚度的厚度的混合磁区
公开(公告)号：US6063489A
公开(公告)日：2000-05-16
申请号：US129891
申请日：1998-08-06
申请人： Hideyuki Kobayashi , Hidehiko Nakayama , Kazutaka Yamashita , Akira Ishikawa
发明人： Hideyuki Kobayashi , Hidehiko Nakayama , Kazutaka Yamashita , Akira Ishikawa
IPC分类号： G11B5/716 , B32B5/16 , G11B5/714
CPC分类号： G11B5/716 , G11B5/714 , Y10T428/256 , Y10T428/257 , Y10T428/265
摘要： A magnetic recording medium having a lower magnetic layer 3 and an upper magnetic layer 4 is disclosed, wherein the lower magnetic layer 3 contains tabular magnetic particles and acicular nonmagnetic inorganic particles and has a thickness of 0.5 to 2.5 .mu.m, the tabular magnetic particles being oriented with their plane having the longest diameter tilted at an angle of 70 to 90.degree. in average with the plane of the magnetic recording medium, the upper magnetic layer 4 contains acicular magnetic particles and has a thickness of not greater than 0.3 .mu.m, and a mixed magnetic region 6 which comprises tabular magnetic particles and acicular magnetic particles, mixed together, and formed between the upper and lower magnetic layers, a thickness m of the mixed magnetic region 6 being 1 to 20% of the total thickness T of all the magnetic layers.
摘要翻译：公开了具有下磁性层3和上磁性层4的磁记录介质，其中下磁性层3包含片状磁性颗粒和针状非磁性无机颗粒，其厚度为0.5至2.5μm，片状磁性颗粒为其平面的最长直径与磁记录介质的平面平均成70度至90度的角度定向，上磁性层4包含针状磁性颗粒并且具有不大于0.3μm的厚度，以及混合磁性区域6，其包括片状磁性颗粒和针状磁性颗粒，混合在一起形成在上部和下部磁性层之间，混合磁性区域6的厚度m为所有这些的总厚度T的1至20％磁性层。

7. 发明授权

US5789063A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5789063A
公开(公告)日：1998-08-04
申请号：US694935
申请日：1996-08-09
申请人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
发明人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
IPC分类号： C09D5/23 , C09D7/12 , G11B5/70 , G11B5/706 , G11B5/712 , H01F1/09 , H01F10/14
CPC分类号： G11B5/70 , G11B5/70605 , H01F1/061 , G11B5/714 , G11B5/7305 , Y10T428/24355 , Y10T428/25 , Y10T428/256 , Y10T428/265
摘要： A magnetic recording medium comprising a support and a magnetic layer comprising a ferromagnetic metal powder and a binder formed on said support, wherein the magnetic layer has a surface roughness of 10 nm or smaller, a coercive force of 1,580 Oe or greater and a decreasing ratio .DELTA.Bs of a saturation flux density (a change rate of saturation flux density Bs' of the magnetic layer realized after the magnetic recording medium has been allowed to stand in an environment, the temperature of which is 60.degree. C. and the relative humidity of which is 90% for 30 days, as compared with saturation flux density Bs of the magnetic layer before the magnetic recording medium is allowed to stand, the change rate being a value expressed by an equation .DELTA.Bs=(1-Bs'/Bs).times.100) of 10% or lower.
摘要翻译：一种磁记录介质，包括载体和包含强磁性金属粉末和形成在所述载体上的粘合剂的磁性层，其中所述磁性层具有10nm或更小的表面粗糙度，1580Oe或更大的矫顽力和减小的比率 DELTA Bs的饱和磁通密度（在磁记录介质已经在环境中放置的环境中实现的磁性层的饱和磁通密度Bs'的变化率，其温度为60℃，相对湿度与磁记录介质静置之前的磁性层的饱和磁通密度Bs相比，为30％，为30％，变化率为由等式DELTA Bs =（1-Bs'/ Bs）表示的值， x100）为10％以下。

8. 发明授权

US5814394A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5814394A
公开(公告)日：1998-09-29
申请号：US597961
申请日：1996-02-07
申请人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
发明人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
IPC分类号： C09D5/23 , B32B33/00 , C09D101/08 , C09D127/00 , C09D127/06 , G11B5/66 , G11B5/702 , G11B5/706 , G11B5/716
CPC分类号： G11B5/7023 , G11B5/70678 , G11B5/716 , Y10S428/90 , Y10T428/24942 , Y10T428/24975 , Y10T428/25
摘要： A magnetic recording medium comprising a support having thereon a plurality of magnetic layers comprising a first magnetic layer provided as an uppermost layer and a second magnetic layer provided adjacent to said first magnetic layer, wherein the first and second magnetic layers each comprises a magnetic powder and a binder containing a vinyl chloride resin and/or cellulose resin, the binder contents in the first magnetic layer and the second magnetic layer satisfy the relationship defined by the following formula (1), and the contents of the vinyl chloride resin and the cellulose resin in the first magnetic layer and the second magnetic layer satisfy the relationship defined by the following formula (2): 0.6 .ltoreq.(A-B)/B.ltoreq.6 (1) 0.4 .ltoreq.(C-D)/D.ltoreq.11 (2) wherein A represents the ratio of the binder content in the second magnetic layer to the magnetic powder content in the second magnetic layer; B represents the ratio of the binder content in the first magnetic layer to the magnetic powder content in the first magnetic layer; C represents the ratio of the total content of the vinyl chloride resin and the cellulose resin in the second magnetic layer to the magnetic powder content in the second magnetic layer; and D represents the ratio of the total content of the vinyl chloride resin and the cellulose resin in the first magnetic layer to the magnetic powder content in the first magnetic layer. The magnetic recording medium according to the present invention is excellent in surface smoothness, output characteristics, overwritability and running durability.
摘要翻译：一种磁记录介质，其特征在于，具有支撑体，所述支撑体具有多个磁性层，所述磁性层包括设置为最上层的第一磁性层和与所述第一磁性层相邻设置的第二磁性层，其中所述第一和第二磁性层各自包括磁性粉末和含有氯乙烯树脂和/或纤维素树脂的粘合剂，第一磁性层和第二磁性层中的粘合剂含量满足下式（1）所定义的关系，氯乙烯树脂和纤维素树脂的含量在第一磁性层和第二磁性层中满足由下式（2）定义的关系：0.6

9. 发明授权

US5795642A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5795642A
公开(公告)日：1998-08-18
申请号：US742815
申请日：1996-11-01
申请人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
发明人： Akira Ishikawa , Hidehiko Nakayama , Kazutaka Yamashita
IPC分类号： C09D5/23 , G11B5/70 , G11B5/735 , G11B5/738 , G11B5/66
CPC分类号： G11B5/738 , G11B5/735 , Y10S428/90 , Y10T428/24355 , Y10T428/265
摘要： Magnetic recording media comprising a nonmagnetic substrate, a surface layer and a back layer, the surface layer having an intermediate layer provided on the surface side of the nonmagnetic substrate and a magnetic layer as a top layer, the back layer having a backcoating layer provided on the back side of the nonmagnetic substrate, the magnetic layer containing a ferromagnetic metal powder and a binder, wherein the surface layer has a residual solvent content of 5 to 1000 ppm, the ferromagnetic metal powder is a ferromagnetic metal powder mainly comprising iron and containing 0.8 to 20 parts by weight of at least one element selected from Group IIIa elements, inclusive of lanthanides, of the Periodic Table per 100 parts by weight of Fe atoms, the magnetic layer has a thickness of 0.05 to 0.6 .mu.m, the magnetic layer has a center-line surface roughness Ra of 1 to 5 nm, the back layer has a residual solvent content of 5 to 800 ppm, and the backcoating layer has a center-line surface roughness Ra of 2 to 8 nm, exhibit excellent electromagnetic characteristics and storage stability.
摘要翻译：包含非磁性基底，表面层和背层的磁记录介质，所述表面层具有设置在所述非磁性基底的表面侧上的中间层和作为顶层的磁性层，所述背层具有背涂层非磁性基板的背面，含有铁磁性金属粉末和粘合剂的磁性层，其中表面层的残留溶剂含量为5〜1000ppm，强磁性金属粉末是主要由铁构成的铁磁性金属粉末，含有0.8 相对于100重量份的Fe原子，含有20重量份的选自元素周期表的IIIa族元素，包括镧系元素中的至少一种元素，磁性层的厚度为0.05〜0.6μm，磁性层具有中心线表面粗糙度Ra为1〜5nm，背层的残留溶剂含量为5〜800ppm，背涂层具有中心线表面粗糙度 2〜8nm的亮度Ra表现出优异的电磁特性和储存稳定性。

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