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1. 发明授权

US07758767B2 Oxide magnetic material and sintered magnet 有权
标题翻译：氧化物磁性材料和烧结磁体
公开(公告)号：US07758767B2
公开(公告)日：2010-07-20
申请号：US10592488
申请日：2005-09-08
申请人： Yoshinori Kobayashi , Seiichi Hosokawa , Sachio Toyota
发明人： Yoshinori Kobayashi , Seiichi Hosokawa , Sachio Toyota
IPC分类号： H01F1/11 , C04B35/26
CPC分类号： H01F1/11 , C04B35/2633 , C04B35/2641 , C04B35/6261 , C04B35/6262 , C04B35/62625 , C04B2235/3208 , C04B2235/3217 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3241 , C04B2235/3262 , C04B2235/3277 , C04B2235/3279 , C04B2235/3284 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/605 , C04B2235/656 , C04B2235/6585 , C04B2235/767 , C04B2235/785 , C04B2235/786 , H01F41/0273
摘要： An oxide magnetic material according to the present invention is represented by the formula: (1−x)CaO.(x/2)R2O3.(n−y/2)Fe2O3.yMO, where R is at least one element selected from the group consisting of La, Nd and Pr and always includes La, M is at least one element selected from the group consisting of Co, Zn, Ni and Mn and always includes Co, and the mole fractions x, y and n satisfy 0.4≦x≦0.6, 0.2≦y≦0.35, 4≦n≦6, and 1.4≦x/y≦2.5. The oxide magnetic material includes a ferrite having a hexagonal M-type magnetoplumbite structure as a main phase.
摘要翻译：根据本发明的氧化物磁性材料由下式表示：（1-x）CaO。（x / 2）R2O3。（n-y / 2）Fe2O3.yMO，其中R是选自由La，Nd和Pr组成的组，总是包括La，M是选自Co，Zn，Ni和Mn中的至少一种元素，并且总是包括Co，并且摩尔分数x，y和n满足0.4＆nlE; x＆nlE; 0.6,0.2＆nlE; y＆nlE; 0.35,4和nlE; n＆nlE; 6和1.4＆nlE; x / y＆nlE; 2.5。氧化物磁性材料包括具有六边形M型磁铅矿结构的铁素体作为主相。

2. 发明申请

US20070194269A1 Oxide magnetic material and sintered magnet 有权
标题翻译：氧化物磁性材料和烧结磁体
公开(公告)号：US20070194269A1
公开(公告)日：2007-08-23
申请号：US10592488
申请日：2005-09-08
申请人： Yoshinori Kobayashi , Seiichi Hosokawa , Sachio Toyota
发明人： Yoshinori Kobayashi , Seiichi Hosokawa , Sachio Toyota
IPC分类号： H01F1/00 , B28B1/00
CPC分类号： H01F1/11 , C04B35/2633 , C04B35/2641 , C04B35/6261 , C04B35/6262 , C04B35/62625 , C04B2235/3208 , C04B2235/3217 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3241 , C04B2235/3262 , C04B2235/3277 , C04B2235/3279 , C04B2235/3284 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/605 , C04B2235/656 , C04B2235/6585 , C04B2235/767 , C04B2235/785 , C04B2235/786 , H01F41/0273
摘要： An oxide magnetic material according to the present invention is represented by the formula: (1−x)CaO.(x/2)R2O3.(n−y/2)Fe2O3.yMO, where R is at least one element selected from the group consisting of La, Nd and Pr and always includes La, M is at least one element selected from the group consisting of Co, Zn, Ni and Mn and always includes Co, and the mole fractions x, y and n satisfy 0.4≦x≦0.6, 0.2≦y≦0.35, 4≦n≦6, and 1.4≦x/y≦2.5. The oxide magnetic material includes a ferrite having a hexagonal M-type magnetoplumbite structure as a main phase.
摘要翻译：根据本发明的氧化物磁性材料由下式表示：（1-x）CaO。（x / 2）R 2 O 3（ny / 2 ）Fe 2 O 3，其中R是选自La，Nd和Pr中的至少一种元素，并且总是包括La，M是至少一种选自Co，Zn，Ni和Mn的元素，并且总是包括Co，并且摩尔分数x，y和n满足0.4 <= x <=0.6,0.2≤y≤0.35，4 <= n < = 6，且1.4 <= x / y <= 2.5。氧化物磁性材料包括具有六边形M型磁铅矿结构的铁素体作为主相。

3. 发明授权

US06955768B2 Permanent magnet and method for preparation thereof 有权
标题翻译：永磁体及其制备方法
公开(公告)号：US06955768B2
公开(公告)日：2005-10-18
申请号：US10466935
申请日：2002-02-06
申请人： Etsushi Oda , Seiichi Hosokawa , Sachio Toyota
发明人： Etsushi Oda , Seiichi Hosokawa , Sachio Toyota
IPC分类号： C04B35/40 , C01G49/00 , C04B35/26 , G11B5/706 , H01F1/10 , H01F1/11 , H01F1/113 , H01F1/34 , H01F41/02
CPC分类号： H01F1/348 , C01G49/009 , C01P2004/61 , C01P2006/42 , C04B35/2633 , C04B35/2641 , C04B35/2683 , C04B35/6262 , C04B2235/3203 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3225 , C04B2235/3227 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3263 , C04B2235/3272 , C04B2235/3274 , C04B2235/3275 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3296 , C04B2235/3298 , C04B2235/3418 , C04B2235/421 , C04B2235/44 , C04B2235/448 , C04B2235/5445 , C04B2235/605 , C04B2235/767 , G11B5/70678 , H01F1/10 , H01F1/11 , H01F1/113 , Y10T428/32
摘要： A ferrite magnet obtained by adding a ferrite having a spinel-type structure to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is selected from the group consisting of the rare-earth elements (including Y) and Bi and that always includes La, during the fine pulverization process thereof. By adding a small amount of the element such as Co, Ni, Mn or Zn to the ferrite already having the hexagonal M-type magnetoplumbite structure during the fine pulverization process thereof, the magnetic properties can be improved.
摘要翻译：通过将具有尖晶石型结构的铁素体添加到具有六方M型磁铅石结构的铁氧体中获得的铁氧体磁体，其中Sr，Ba，Pb或Ca的一部分被至少一种选自由稀土元素（包括Y）和Bi组成的组，并且其在细粉碎过程中始终包括La。通过在细粉碎工序中将少量的诸如Co，Ni，Mn或Zn的元素添加到已经具有六方M型磁铅矿结构的铁氧体中，可以提高磁特性。

4. 发明授权

US06419847B1 Ferrite magnet powder and magnet using said magnet powder, and method for preparing them 有权
标题翻译：使用所述磁铁粉末的铁氧体磁体粉末和磁体及其制备方法
公开(公告)号：US06419847B1
公开(公告)日：2002-07-16
申请号：US09582238
申请日：2000-07-19
申请人： Sachio Toyota , Seiichi Hosokawa , Shuji Anamoto , Isamu Furuchi
发明人： Sachio Toyota , Seiichi Hosokawa , Shuji Anamoto , Isamu Furuchi
IPC分类号： H01F111
CPC分类号： H01F1/113 , C01G49/0018 , C01G49/009 , C01G51/006 , C01P2002/52 , C01P2002/54 , C01P2002/72 , C01P2004/61 , C01P2004/62 , C01P2006/42 , C04B35/2633 , C04B35/2641 , C04B35/62645 , C04B35/62675 , C04B2235/3208 , C04B2235/3213 , C04B2235/3227 , C04B2235/3274 , C04B2235/3275 , C04B2235/3418 , C04B2235/5445 , C04B2235/76 , C04B2235/767 , C04B2235/786 , H01F41/0273
摘要： An La—Co ferrite magnet powder, in which Sr and Fe are replaced with La and Co, respectively, is made by carrying out a calcination process at a temperature higher than 1300° C. and equal to or lower than 1450° C. Fe has a magnetic moment oriented upwardly with respect to a crystal c-axis at a number of sites thereof, and also has an opposite magnetic moment oriented downwardly with respect to the crystal c-axis at another number of sites thereof. And Fe is replaced with Co at the greater number of sites thereof. As a result, high coercivity is attained. In this manner, coercivity can be increased while suppressing decrease in saturation magnetization &sgr;s.
摘要翻译：通过在高于1300℃且等于或低于1450℃的温度下进行煅烧过程，分别制备Sr和Fe分别被La和Co代替的La-Co铁氧体磁体粉末。Fe 具有相对于其多个位置处的晶体c轴向上定向的磁矩，并且在另一数量的位置处具有相对于晶体c轴向下定向的相反的磁矩。而在更多的地点，用Co代替Fe。结果，获得高的矫顽力。以这种方式，可以在抑制饱和磁化Sigmas的降低的同时提高矫顽力。

5. 发明授权

US4746191A Optical switch 失效
标题翻译：光开关
公开(公告)号：US4746191A
公开(公告)日：1988-05-24
申请号：US71135
申请日：1987-07-08
申请人： Shojiro Kawakami , Makoto Minakata , Mitsuhiro Takata , Sachio Toyota
发明人： Shojiro Kawakami , Makoto Minakata , Mitsuhiro Takata , Sachio Toyota
IPC分类号： G02F1/055 , G02B6/16
CPC分类号： G02F1/0553
摘要： There is disclosed an optical switch comprising an optical fiber, a block of PLZT, and two polarizers disposed on opposite sides of the block. The fiber has one or more grooves in which the block and the polarizers are received. The block of PLZT induces an electric field perpendicular to the axis of the core of the fiber. The groove or grooves extend across the core of the fiber such that the block covers the whole cross section of the core. Each polarizer consists of alternate laminations of a metal and a dielectric. The laminations are stacked in a direction perpendicular to the axis of the core. Each dielectric lamination is thicker than each metal lamination. If incident light is polarized, one of the polarizers is omitted.
摘要翻译：公开了一种光开关，其包括光纤，PLZT块和设置在块的相对侧上的两个偏振器。光纤具有一个或多个槽，其中接收块和偏振器。 PLZT的块会诱导垂直于纤维芯的轴的电场。凹槽或凹槽延伸穿过纤维的芯，使得该块覆盖芯的整个横截面。每个偏振器由金属和电介质的交替叠层组成。叠片在与芯的轴线垂直的方向上堆叠。每个介电层压比每个金属层压厚。如果入射光被极化，则其中一个偏振器被省略。

6. 发明授权

US06994797B2 Permanent magnet and method for preparation thereof 有权
标题翻译：永磁体及其制备方法
公开(公告)号：US06994797B2
公开(公告)日：2006-02-07
申请号：US10470086
申请日：2002-02-06
申请人： Etsushi Oda , Sachio Toyota , Seiichi Hosokawa
发明人： Etsushi Oda , Sachio Toyota , Seiichi Hosokawa
IPC分类号： H01F1/11 , C04B35/26 , C01G49/00
CPC分类号： H01F1/113 , C01G49/009 , C01P2002/30 , C01P2002/76 , C01P2004/61 , C01P2004/62 , C01P2006/42 , C04B35/2641 , C04B35/2683 , C04B35/6262 , C04B2235/3208 , C04B2235/3213 , C04B2235/3217 , C04B2235/3227 , C04B2235/3241 , C04B2235/3263 , C04B2235/3274 , C04B2235/3275 , C04B2235/3279 , C04B2235/3284 , C04B2235/3418 , C04B2235/421 , C04B2235/44 , C04B2235/448 , C04B2235/5445 , C04B2235/605 , C04B2235/767 , C04B2235/81 , G11B5/70678 , H01F1/11 , Y10T428/32
摘要： A ferrite magnet obtained by adding at least one element selected from the group consisting of Co, Ni, Mn and Zn to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is selected from the group consisting of the rare-earth elements (including Y) and Bi and that always includes La, during the fine pulverization process thereof, and then subjecting the mixture to re-calcining and/or sintering process(es). By adding a small amount of the element such as Co, Ni, Mn or Zn to the ferrite already having the hexagonal M-type magnetoplumbite structure during the fine pulverization process thereof, the magnetic properties can be improved.
摘要翻译：通过将选自Co，Ni，Mn和Zn中的至少一种元素添加到具有六方M型磁铅矿结构的铁氧体中而获得的铁氧体磁体，其中Sr，Ba，Pb或Ca的一部分被选自稀土元素（包括Y）和Bi中的至少一种元素，并且在其细粉碎过程期间始终包括La，然后对混合物进行再煅烧和/或烧结过程（es）。通过在细粉碎工序中将少量的诸如Co，Ni，Mn或Zn的元素添加到已经具有六方M型磁铅矿结构的铁氧体中，可以提高磁特性。

7. 发明授权

US06758986B1 Magnet powder and method for preparations thereof 有权
标题翻译：磁粉及其制备方法
公开(公告)号：US06758986B1
公开(公告)日：2004-07-06
申请号：US09830626
申请日：2001-04-30
申请人： Seiichi Hosokawa , Sachio Toyota
发明人： Seiichi Hosokawa , Sachio Toyota
IPC分类号： H01F111
CPC分类号： H01F1/113 , C01G49/0018 , C01G49/0036 , C01G49/0054 , C01G49/009 , C01P2002/76 , C01P2006/42 , C04B35/2608 , C04B35/2633 , C04B35/2641 , C04B35/265
摘要： The production is performed by calcining ferrite magnetic powder in which La is substituted for part of Sr and Ti, Zn, and Co are substituted for part of Fe at temperatures of 1100° C. to 1450° C. The magnetization is improved by substituting Zn for part of Fe, and by substituting Ti for part of Fe for the purpose of charge compensation. In addition, the coercive force is improved by substituting Co for part of Fe, and by substituting La for part of Sr for the purpose of charge compensation. Ti is used for the charge compensation, so that it is possible to reduce the cost.
摘要翻译：通过煅烧其中La取代Sr的一部分铁素体磁粉，Ti，Zn和Co在1100℃至1450℃的温度下代替Fe的一部分来进行生产。通过用Zn 部分为Fe，并为了补偿费用，用Ti替代部分Fe。另外，通过用Co替代部分Fe，通过用La取代部分Sr以进行电荷补偿来提高矫顽力。 Ti用于充电补偿，因此可以降低成本。

8. 发明授权

US5866028A Ferrite magnet, and powder for ferrite magnet and production process thereof 失效
标题翻译：铁氧体磁铁，铁氧体磁铁用粉末及其制造方法
公开(公告)号：US5866028A
公开(公告)日：1999-02-02
申请号：US930222
申请日：1997-10-03
申请人： Sachio Toyota
发明人： Sachio Toyota
IPC分类号： C01G49/00 , C04B35/26 , H01F1/11 , H01F41/02
CPC分类号： C04B35/2683
摘要： It is an object of the present invention, in the W-type ferrite which is formulated as SrO.2(FeO).n(Fe.sub.2 O.sub.3), to provide the ferrite magnet and the manufacturing process thereof by which said W-type magnet maintains cost-performance characteristics recognized with the conventional M-type magnet and furthermore exhibits the maximum energy products more than 5 MGOe. In order to achieve the aforementioned object, carbon elements are admixed to raw powder which is a previously prepared mixture of SrCO.sub.3 and Fe.sub.2 O.sub.3 under a given condition such that n-value in the above formula is in a range between 7.2 and 7.7. After the calcining said mixture, CaO, SiO.sub.2 and C powders are furthermore mixed and pulverized to have an average particle size of less than 0.06 .mu.m, followed by forming into a green compact body under a magnetic field and sintering the formed product under a non-oxidizing atmosphere. Hence the W-type ferrite, which has not been realized before, can be produced easily and with low cost.
摘要翻译： PCT No.PCT / JP97 / 00962 Sec。 371日期1997年10月3日第 102（e）日期1997年10月3日PCT 1997年3月24日PCT公布。出版物WO97 / 35815 PCT 日期1997年10月2日本发明的目的是在配制为SrO.2（FeO）·n（Fe2O3））的W型铁氧体中提供铁氧体磁体及其制造方法，其中W 型磁体保持了传统M型磁体识别的成本性能特征，并且还显示出大于5MGOe的最大能量产物。为了实现上述目的，在给定条件下将碳元素与作为预先制备的SrCO 3和Fe 2 O 3的混合物的原料粉末混合，使得上式中的n值在7.2和7.7之间的范围内。在煅烧所述混合物之后，将CaO，SiO 2和C粉末进一步混合并研磨成具有小于0.06μm的平均粒度，随后在磁场下形成生坯体，并在非 - 氧化气氛。因此，以前尚未实现的W型铁氧体可以容易且低成本地制造。

9. 发明申请

US20100237273A1 OXIDE MAGNETIC MATERIAL AND SINTERED MAGNET 审中-公开
标题翻译：氧化物磁铁和烧结磁铁
公开(公告)号：US20100237273A1
公开(公告)日：2010-09-23
申请号：US12793709
申请日：2010-06-04
申请人： Yoshinori KOBAYASHI , Seiichi HOSOKAWA , Sachio TOYOTA
发明人： Yoshinori KOBAYASHI , Seiichi HOSOKAWA , Sachio TOYOTA
IPC分类号： H01F1/01
CPC分类号： H01F1/11 , C04B35/2633 , C04B35/2641 , C04B35/6261 , C04B35/6262 , C04B35/62625 , C04B2235/3208 , C04B2235/3217 , C04B2235/3224 , C04B2235/3227 , C04B2235/3229 , C04B2235/3241 , C04B2235/3262 , C04B2235/3277 , C04B2235/3279 , C04B2235/3284 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/605 , C04B2235/656 , C04B2235/6585 , C04B2235/767 , C04B2235/785 , C04B2235/786 , H01F41/0273
摘要： An oxide magnetic material according to the present invention is represented by the formula: (1−x)CaO.(x/2)R2O3.(n−y/2)Fe2O3.yMO, where R is at least one element selected from the group consisting of La, Nd and Pr and always includes La, M is at least one element selected from the group consisting of Co, Zn, Ni and Mn and always includes Co, and the mole fractions x, y and n satisfy 0.4≦x≦0.6, 0.2≦y≦0.35, 4≦n≦6, and 1.4≦x/y≦2.5. The oxide magnetic material includes a ferrite having a hexagonal M-type magnetoplumbite structure as a main phase.
摘要翻译：根据本发明的氧化物磁性材料由下式表示：（1-x）CaO。（x / 2）R2O3。（n-y / 2）Fe2O3.yMO，其中R是选自由La，Nd和Pr组成的组，总是包括La，M是选自Co，Zn，Ni和Mn中的至少一种元素，并且总是包括Co，并且摩尔分数x，y和n满足0.4＆nlE; x＆nlE; 0.6,0.2＆nlE; y＆nlE; 0.35,4和nlE; n＆nlE; 6和1.4＆nlE; x / y＆nlE; 2.5。氧化物磁性材料包括具有六边形M型磁铅矿结构的铁素体作为主相。

10. 发明授权

US06929758B2 Permanent magnet and method for preparation thereof 有权
标题翻译：永磁体及其制备方法
公开(公告)号：US06929758B2
公开(公告)日：2005-08-16
申请号：US10450390
申请日：2001-12-06
申请人： Etsushi Oda , Sachio Toyota , Seiichi Hosokawa
发明人： Etsushi Oda , Sachio Toyota , Seiichi Hosokawa
IPC分类号： C04B35/40 , C01G49/00 , C04B35/26 , G11B5/706 , H01F1/11 , H01F7/02 , H01F41/02 , H01F1/44
CPC分类号： C04B35/2683 , C01G49/0018 , C01G49/009 , C01P2002/76 , C01P2004/61 , C01P2004/62 , C01P2006/42 , C04B35/26 , C04B35/62675 , C04B2235/3203 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3217 , C04B2235/3225 , C04B2235/3227 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3262 , C04B2235/3263 , C04B2235/3274 , C04B2235/3275 , C04B2235/3279 , C04B2235/3281 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3296 , C04B2235/3298 , C04B2235/3409 , C04B2235/3418 , C04B2235/5445 , C04B2235/767 , C04B2235/81 , G11B5/70678 , H01F1/11 , H01F10/205 , H01F41/0266 , Y10T428/32
摘要： A ferrite magnet obtained by adding either an oxide of Mn or oxides of Mn and Co to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is selected from the group consisting of the rare earth elements (including Y) and Bi and that always includes La, during the fine pulverization process thereof, and then subjecting the mixture to re-calcining and/or sintering process(es). By adding a small amount of the element Mn or elements Mn and Co to the ferrite already having the hexagonal M-type magnetoplumbite structure during the fine pulverization process thereof, the magnetic properties can be improved.
摘要翻译：通过将Mn或氧化物的Mn或Co的氧化物添加到具有六方M型磁铅石结构的铁氧体中而获得的铁氧体磁体，其中Sr，Ba，Pb或Ca的一部分被至少一个元素代替，选自稀土元素（包括Y）和Bi，并且在其细粉碎过程期间始终包括La，然后对混合物进行再煅烧和/或烧结过程。通过在其精细粉碎工艺中已经具有六方M型磁铅矿结构的铁素体中添加少量元素Mn或元素Mn和Co，可以提高磁性能。

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