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1. 发明授权

US5302469A Soft magnetic thin film 失效
标题翻译：软磁薄膜
公开(公告)号：US5302469A
公开(公告)日：1994-04-12
申请号：US704093
申请日：1991-05-22
申请人： Shoutatsu Sugenoya , Yuuichi Satoh , Osamu Kohmoto
发明人： Shoutatsu Sugenoya , Yuuichi Satoh , Osamu Kohmoto
IPC分类号： C22C38/00 , G11B5/31 , H01F10/14 , H01F10/18 , G11B5/66 , B32B9/00 , H01F1/00
CPC分类号： G11B5/3109 , H01F10/14 , H01F10/18 , Y10S428/90 , Y10T428/115 , Y10T428/12465
摘要： A soft magnetic thin film according to the invention has an atomic ratio composition represented by the formula:Fe.sub.(100-a-b) M.sub.a O.sub.bwherein M is at least one element selected from Group 3A elements and Group 4A elements, 2.ltoreq.a.ltoreq.15 and 4.ltoreq.b.ltoreq.35. It has a high saturation magnetic flux density Bs, high magnetic permeability .mu., low coercive force Hc, improved frequency response, high electric resistivity .rho., and good corrosion resistance.
摘要翻译：根据本发明的软磁薄膜具有由下式表示的原子比组成：Fe（100-ab）MaOb其中M是选自3A族元素和4A族元素中的至少一种元素，2 <= a <= 15 和4 <= b <= 35。具有高的饱和磁通密度Bs，高导磁率（my），低矫顽力Hc，改善的频率响应，高电阻率（rho）和良好的耐腐蚀性。

2. 发明授权

US4537832A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4537832A
公开(公告)日：1985-08-27
申请号：US563502
申请日：1983-12-20
申请人： Osamu Kohmoto , Yasufumi Takasugi , Hiroshi Sugihara , Masaharu Nishimatsu
发明人： Osamu Kohmoto , Yasufumi Takasugi , Hiroshi Sugihara , Masaharu Nishimatsu
IPC分类号： C09D5/23 , G11B5/66 , G11B5/72
CPC分类号： G11B5/72 , G11B5/66 , Y10S428/90 , Y10T428/24975 , Y10T428/265 , Y10T428/2967
摘要： A magnetic recording medium for use in video and other applications is presented which comprises a substrate, a continuous thin magnetic layer of cobalt and at least one selected from nickel, chromium, and oxygen, preferably obliquely evaporated on the substrate, and a topcoat formed over the magnetic layer and made of a phosphate compound having the formula: ##STR1## where R is selected from alkyl radicals having 10 to 22 carbon atoms, and Y and Y' are independently selected from the group consisting of hydrogen atom, alkyl radicals and monovalent cations, and Y and Y' may together represent a divalent cation.
摘要翻译：提出了用于视频和其他应用的磁记录介质，其包括基底，钴的连续薄磁性层和选自镍，铬和氧中的至少一种，优选在基底上倾斜蒸发，并形成在顶部该磁性层由具有下式的化合物制成：其中R选自具有10-22个碳原子的烷基，Y和Y'独立地选自氢原子，烷基和一价阳离子，Y和Y'可以一起表示二价阳离子。

3. 发明授权

US4836868A Permanent magnet and method of producing same 失效
标题翻译：永久磁铁及其制造方法
公开(公告)号：US4836868A
公开(公告)日：1989-06-06
申请号：US38195
申请日：1987-04-14
申请人： Kohichi Yajima , Osamu Kohmoto , Tetsuhito Yoneyama
发明人： Kohichi Yajima , Osamu Kohmoto , Tetsuhito Yoneyama
IPC分类号： H01F1/057
CPC分类号： H01F1/0578 , H01F1/057 , H05K2201/10977
摘要： In an R-Fe-B permanent magnet produced by a process including a rapid cooling, a composition of{R.sub.a (Ce.sub.b La.sub.1-b).sub.1-a }x(Fe.sub.1-z Co.sub.z).sub.100-x-y-w B.sub.y M.sub.w(R is at least one rare earth element except for La and Ce but including Y, 5.5.ltoreq.x

4. 发明授权

US4410406A Process for preparing magnetic recording medium 失效
标题翻译：制备磁记录介质的方法
公开(公告)号：US4410406A
公开(公告)日：1983-10-18
申请号：US320439
申请日：1981-11-12
申请人： Osamu Kohmoto , Takahiro Yamamoto
发明人： Osamu Kohmoto , Takahiro Yamamoto
IPC分类号： G11B5/66 , C23C14/02 , C23C14/14 , G11B5/64 , G11B5/85 , G11B5/851 , H01F41/18 , C23C15/00
CPC分类号： G11B5/64 , C23C14/14 , G11B5/851
摘要： A magnetic recording medium is prepared by forming a thin magnetic layer having the formulation(Co.sub.100-x Ni.sub.x).sub.100-y P.sub.ywherein x is in a range of 0 to 35 wt. % and y is in a range of more than 0 wt. % to 6 wt. % on a non-magnetic substrate by a sputtering method.
摘要翻译：通过形成具有制剂（Co100-xNix）100-yPy的薄磁性层制备磁记录介质，其中x在0至35重量％的范围内。％和y在大于0重量％的范围内。％至6wt。％的非磁性基板。

5. 发明授权

US4188211A Thermally stable amorphous magnetic alloy 失效
标题翻译：热稳定非晶磁合金
公开(公告)号：US4188211A
公开(公告)日：1980-02-12
申请号：US876528
申请日：1978-02-09
申请人： Norishige Yamaguchi , Kazuo Ohya , Osamu Kohmoto , Hiroki Fujishima
发明人： Norishige Yamaguchi , Kazuo Ohya , Osamu Kohmoto , Hiroki Fujishima
IPC分类号： C22C45/04 , H01F1/153 , C22C19/00 , C22C19/05
CPC分类号： H01F1/153 , C22C45/04
摘要： During investigation of thermal stability of the amorphous magnetic alloys by the Inventors, it was discovered that, due to the application of heat to the alloys, the hysteresis loop of the conventional, amorphous magnetic alloys was shifted in such a manner that the initial permeability of the alloys was decreased. It was also discovered that the initial permeability of the conventional amorphous magnetic alloys was irreversibly changed due to the application of heat to and the withdrawal of heat from the alloys.The present invention is characterized by the discovery of an unexpected relationship between the content of metallic elements and a metalloid element(s) of the amorphous alloy composition, thereby providing novel alloy compositions with thermally stable magnetic properties.The present invention is also characterized by incorporating an additional element or elements into an amorphous magnetic alloy, thereby providing the alloy with thermal stability.
摘要翻译：在通过发明人研究非晶磁性合金的热稳定性的过程中，发现由于向合金施加热量，传统的非晶磁性合金的磁滞回线以这样的方式移动，使得初始磁导率合金减少。还发现常规非晶磁合金的初始磁导率由于向合金施加热量和退出热量而不可逆地改变。本发明的特征在于发现金属元素的含量与非晶合金组合物的准金属元素之间的意想不到的关系，从而提供具有热稳定磁性的新型合金组成。本发明的特征还在于将另外的元素结合到非晶磁性合金中，从而为合金提供热稳定性。

6. 发明授权

US5229219A Magnetic recording medium comprising a magnetic layer containing a specified magnetic ferrite powder and having a curie temperature up to 180.degree. C. 失效
标题翻译：包含指定磁铁粉末的磁性层并具有高达180度C的温度的磁记录介质。
公开(公告)号：US5229219A
公开(公告)日：1993-07-20
申请号：US536661
申请日：1990-07-09
申请人： Hideharu Moro , Shigeo Satoh , Osamu Kohmoto , Tetsuhito Yoneyama , Shohei Mimura , Haruyuki Takahashi , Atsushi Makimura
发明人： Hideharu Moro , Shigeo Satoh , Osamu Kohmoto , Tetsuhito Yoneyama , Shohei Mimura , Haruyuki Takahashi , Atsushi Makimura
IPC分类号： C01G49/00 , G11B5/706 , H01F1/11
CPC分类号： H01F1/11 , C01G49/009 , G11B5/70678 , C01P2004/03 , C01P2004/22 , C01P2004/52 , C01P2004/61 , C01P2004/62 , C01P2006/42 , Y10S428/90 , Y10T428/2991
摘要： According to the invention, a magnetic recording medium is formed by using magnetic powder having a composition of the following formula:MeO.multidot.n[Fe.sub.2-x-y-z Ga.sub.x Cr.sub.y Al.sub.z O.sub.3 ]wherein Me is at least on element selected from the group consisting of Ba, Sr, Pb, and Ca,4.5.ltoreq.n.ltoreq.6, x.gtoreq.0, y.gtoreq.0, z.gtoreq.0,x/3+y/4+z/6.gtoreq.1/6, andx/6+y/10+z/11.ltoreq.1/6,preferably the number of those particles having a particle size of from 0.5d to 1.5d being at least 65% of the entire particles wherein is an average particle size, and the Fe content on the particle surface being substantially equal to the Fe content in the particle interior, and blending the powder with a binder. Thermomagnetic recording and thermomagnetic duplication are carried out using the medium. There results a magnetic layer which has high Hc, is not easily erased once recorded, has high squareness ratio, and enables thermomagnetic recording and thermomagnetic duplication at 100.degree. to 180.degree. C. with outputs having an excellent frequency response and minimized variation and noise.
摘要翻译： PCT No.PCT / JP89 / 01133 Sec。 371 1990年7月9日第 102（e）日1990年7月9日PCT 1989年11月2日PCT PCT。 WO90 / 05367 PCT出版物日本1990年5月17日。根据本发明，通过使用具有下式的组成的磁粉形成磁记录介质：MeOxn [Fe2-xy-zGaxCryAlzO3]其中Me至少在选自 Ba，Sr，Pb和Ca，4.5≤n≤6，x> = 0，y> / = 0，z> / = 0，x / 3 + y / 4 + z / 6> = 1/6，x / 6 + y / 10 + z / 11 = 1/6，优选粒径为0.5＆lt; bar＆gt;至1.5＆amp; 整个颗粒，其中平均颗粒大小，并且颗粒表面上的Fe含量基本上等于颗粒内部的Fe含量，并将粉末与粘合剂混合。使用介质进行热磁记录和热磁复制。产生高Hc的磁性层，记录后不容易擦除，具有高矩形比，并且能够在100〜180℃下进行热磁记录和热磁复制，具有出色的频率响应和最小化的变化和噪声。

7. 发明授权

US4592948A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4592948A
公开(公告)日：1986-06-03
申请号：US563512
申请日：1983-12-20
申请人： Osamu Kohmoto , Yasufumi Takasugi , Hiroshi Sugihara , Masaharu Nishimatsu
发明人： Osamu Kohmoto , Yasufumi Takasugi , Hiroshi Sugihara , Masaharu Nishimatsu
IPC分类号： G11B5/706 , C10M105/38 , C10N40/18 , G11B5/64 , G11B5/65 , G11B5/66 , G11B5/72 , G11B5/725
CPC分类号： G11B5/72 , G11B5/66 , Y10S428/90 , Y10T428/24967 , Y10T428/24975 , Y10T428/265
摘要： A magnetic recording medium for use in video and other applications is presented which comprises a substrate, a continuous thin magnetic layer of cobalt and at least one selected from nickel, chromium, and oxygen, preferably obliquely evaporated on the substrate, and a topcoat formed over the magnetic layer and consisting of a monoalkylamine in which the alkyl contains 10 to 22 carbon atoms.
摘要翻译：提出了用于视频和其他应用的磁记录介质，其包括基底，钴的连续薄磁性层和选自镍，铬和氧中的至少一种，优选在基底上倾斜蒸发，并形成在顶部该磁性层由烷基含有10-22个碳原子的单烷基胺组成。

8. 发明授权

US5049208A Permanent magnets 失效
标题翻译：永磁体
公开(公告)号：US5049208A
公开(公告)日：1991-09-17
申请号：US225788
申请日：1988-07-29
申请人： Koichi Yajima , Osamu Kohmoto , Tetsuhito Yoneyama
发明人： Koichi Yajima , Osamu Kohmoto , Tetsuhito Yoneyama
IPC分类号： C22C38/00 , B22F9/00 , C22C38/54 , H01F1/053 , H01F1/057
CPC分类号： B22F9/008 , H01F1/057 , H01F1/0571 , H01F1/0578
摘要： A permanent magnet having high coercivity and energy product contains rare earth elements, boron, at least one element of Ti, V, Cr, Zr, Nb, Mo, Hf, Ta and W, and a blance of Fe or Fe and Co, and consists of a primary phase of substantially tetragonal grain structure, or a mixture of such a primary phase and an amorphous or crystalline rare earth element-poor auxiliary phase wherein the volume ratio of auxiliary phase to primary phase is smaller than a specific value.

9. 发明授权

US5022939A Permanent magnets 失效
标题翻译：永磁体
公开(公告)号：US5022939A
公开(公告)日：1991-06-11
申请号：US346457
申请日：1989-05-02
申请人： Koichi Yajima , Osamu Kohmoto , Tetsuhito Yoneyama
发明人： Koichi Yajima , Osamu Kohmoto , Tetsuhito Yoneyama
IPC分类号： B22F9/00 , H01F1/057
CPC分类号： B22F9/008 , H01F1/0571 , H01F1/0578
摘要： A permanent magnet material having high coercivity and energy product is provided which contains rare earth elements, boron, at least one element of Ti, V, Cr, Zr, Nb, Mo, Hf, Ta and W, optional nickel, and a balance of Fe or Fe and Co, and consists of a primary phase of substantially tetragonal grain structure, or a mixture of such a primary phase and an amorphous or crystalline rare earth element-poor auxiliary phase wherein the volume ratio of auxiliary phase to primary phase has a specific relationship to other parameters.
摘要翻译：提供了具有高矫顽力和能量积的永磁材料，其含有稀土元素，硼，Ti，V，Cr，Zr，Nb，Mo，Hf，Ta和W中的至少一种元素，任选的镍，余量为 Fe或Fe和Co，并且由基本上四边形晶粒结构的主相或这种初级相和无定形或结晶的稀土元素贫乏的辅助相的混合物组成，其中辅助相与主相的体积比具有与其他参数具体关系。

10. 发明授权

US4621008A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US4621008A
公开(公告)日：1986-11-04
申请号：US662051
申请日：1984-10-18
申请人： Yasufumi Takasugi , Osamu Kohmoto , Hiroshi Sugihara , Masaharu Nishimatsu
发明人： Yasufumi Takasugi , Osamu Kohmoto , Hiroshi Sugihara , Masaharu Nishimatsu
IPC分类号： C09D5/23 , G11B5/725 , G11B5/72
CPC分类号： G11B5/725 , Y10S428/90 , Y10T428/24975 , Y10T428/265 , Y10T428/2969
摘要： A magnetic recording medium for use in video and other applications is presented which comprises a substrate, a continuous thin magnetic layer of cobalt and at least one selected from nickel, chromium, and oxygen, preferably obliquely evaporated on the substrate, and a topcoat formed over the magnetic layer and made of a phosphate compound having the formula: ##STR1## where R is selected from the group consisting of substituted or unsubstituted alkyl radicals having 10 to 22 carbon atoms which may be saturated or have an unsaturated double bond in their backbone, and substituted or unsubstituted aryl, alkaryl, aralkyl and alkylarylalkyl radicals having 6 to 20 carbon atoms, andY.sup.1 and Y.sup.2 may be the same or different and selected from the group consisting of hydrogen atom, cations, and substituted or unsubstituted alkyl and aryl radicals, the alkyl radicals being saturated or having an unsaturated double bond in their backbone, and Y.sup.1 and Y.sup.2 may together represent a divalent cation.
摘要翻译：提出了用于视频和其他应用的磁记录介质，其包括基底，钴的连续薄磁性层和选自镍，铬和氧中的至少一种，优选在基底上倾斜蒸发，并形成在顶部该磁性层由具有下式的磷酸酯化合物制成：其中R选自取代或未取代的具有10-22个碳原子的烷基，其可以在其主链中饱和或具有不饱和双键，和具有6至20个碳原子的取代或未取代的芳基，烷芳基，芳烷基和烷芳基烷基，Y 1和Y 2可以相同或不同，并且选自氢原子，阳离子和取代或未取代的烷基和芳基，烷基在其主链中饱和或具有不饱和双键，Y1和Y2可以一起代表二价阳离子。

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