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1. 发明授权

US07084603B2 Motor control device 失效
标题翻译：电机控制装置
公开(公告)号：US07084603B2
公开(公告)日：2006-08-01
申请号：US10844580
申请日：2004-05-13
申请人： Hitoshi Taguchi , Takeshi Kitahata , Yosuke Nakazawa
发明人： Hitoshi Taguchi , Takeshi Kitahata , Yosuke Nakazawa
IPC分类号： H02P23/00 , H02P25/00 , H02P27/00 , H02P27/04
CPC分类号： H02P6/185 , H02P25/03
摘要： A motor control device that can reduce electrical noise is provided. A motor control device includes an inverter, a current controller, a high frequency wave superpositioner, and a high frequency wave setter. An inverter applies a current to the motor. A current controller outputs a voltage to the inverter according to a current applied to the motor from the inverter. A high frequency wave superpositioner applies a high frequency wave to the voltage from the current controller as a superpositioned wave to infer a position of a rotor in the motor. A high frequency wave setter varies at least one characteristic of the superpositioned wave applied by the high frequency wave superpositioner.
摘要翻译：提供可以降低电气噪声的电动机控制装置。电动机控制装置包括逆变器，电流控制器，高频波叠加器和高频波定位器。逆变器向电机施加电流。电流控制器根据从逆变器施加到电动机的电流向逆变器输出电压。高频波叠加器将来自电流控制器的电压作为叠加波施加高频波，以推定电动机中转子的位置。高频波设置器改变由高频波叠加器施加的叠加波的至少一个特性。

2. 发明授权

US5951937A Preparation of oxide magnetic material 失效
标题翻译：氧化物磁性材料的制备
公开(公告)号：US5951937A
公开(公告)日：1999-09-14
申请号：US984087
申请日：1997-12-03
申请人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida
发明人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida
IPC分类号： C04B35/26 , C04B35/632 , H01F1/10 , H01F1/34 , H01F1/44 , B28B3/00
CPC分类号： H01F1/445 , C04B35/2633 , C04B35/632 , H01F1/10 , H01F1/342 , H01F1/344
摘要： The method of the invention uses a molding slurry containing a particulate oxide magnetic material and water and having a dispersant added thereto. The dispersant is an organic compound having a hydroxyl group and a carboxyl group or a neutralized salt thereof or a lactone thereof, an organic compound having a hydroxymethylcarbonyl group, or an organic compound having an enol form hydroxyl group dissociable as an acid or a neutralized salt thereof. The organic compound has 3 to 20 carbon atoms, with the hydroxyl group being attached to at least 50% of carbon atoms other than the carbon atom forming a double bond with an oxygen atom. Citric acid or a neutralized salt thereof is also useful as the dispersant. The addition of the dispersant facilitates the wetting of the particulate oxide magnetic material with water and improves the dispersion of primary particles and a degree of orientation upon molding.
摘要翻译：本发明的方法使用含有颗粒状氧化物磁性材料和水并且添加有分散剂的模塑浆料。分散剂是具有羟基和羧基的有机化合物或其中和盐或其内酯，具有羟甲基羰基的有机化合物或具有可以作为酸或中和盐解离的羟基的烯醇形式的有机化合物其中。有机化合物具有3至20个碳原子，其中羟基连接至与氧原子形成双键的碳原子以外的至少50％的碳原子。柠檬酸或其中和盐也可用作分散剂。分散剂的添加促进了颗粒状氧化物磁性材料与水的润湿，改善了初级颗粒的分散和成型时的取向度。

3. 发明授权

US5607615A Hexagonal ba-ferrite sintered magnet, its making method, and polar anisotropy ring magnet 失效
标题翻译：六角形钡铁氧体烧结磁体，其制造方法和极性各向异性环形磁铁
公开(公告)号：US5607615A
公开(公告)日：1997-03-04
申请号：US439551
申请日：1995-05-11
申请人： Hitoshi Taguchi , Fumihiko Hirata , Taku Takeishi , Teruo Mori
发明人： Hitoshi Taguchi , Fumihiko Hirata , Taku Takeishi , Teruo Mori
IPC分类号： C04B35/26 , H01F1/04
CPC分类号： C04B35/2683
摘要： In a method for preparing a magnet by pulverizing a calcined powder of hexagonal barium ferrite, compacting the thus pulverized ferrite magnet source particles in a magnetic field, and sintering the compact, a structure comprising barium ferrite as a primary phase and containing strontium and silicon as grain boundary components is obtained when a silicon component such as SiO.sub.2 and a strontium component such as SrCO.sub.3 are contained in the compact. This results in a hexagonal barium ferrite sintered magnet which has minimal anisotropy of shrinkage factor and minimal deformation during sintering, requires only simple or no post-polishing, and has improved sintered density and coercivity.
摘要翻译：在通过粉碎六方晶系钡铁氧体的煅烧粉末制备磁体的方法中，将如此粉碎的铁氧体磁体源粒子在磁场中压实，并烧结该压坯，将包含钡铁氧体作为主相并且包含锶和硅的结构作为当成型体中含有诸如SiO 2的硅组分和诸如SrCO 3的锶组分时，获得晶界分量。这导致六方晶系钡铁氧体烧结磁体在烧结过程中具有最小的收缩率各向异性和最小的变形，仅需要简单或不后抛光，并且具有改善的烧结密度和矫顽力。

4. 发明授权

US5144860A Rotation transmitting mechanism for steering wheel 失效
标题翻译：方向盘旋转传动机构
公开(公告)号：US5144860A
公开(公告)日：1992-09-08
申请号：US676304
申请日：1991-03-28
申请人： Kenshi Furuhashi , Yoshinobu Sugiyama , Hitoshi Taguchi
发明人： Kenshi Furuhashi , Yoshinobu Sugiyama , Hitoshi Taguchi
IPC分类号： B60R16/02 , B60R16/027 , B62D1/04 , B62D1/10 , H01R35/04
CPC分类号： B60R16/027 , B62D1/10 , Y10T403/7035 , Y10T403/7045 , Y10T403/7092 , Y10T74/20834
摘要： A rotation transmitting mechanism for a steering wheel for use in an automobile. A rotational member of a coupling device has projections extending radially inwardly, while a cancel cam has corresponding U-shaped cutouts to receive the projections, respectively. Each projection has a tapered section tapering off to a bottom end thereof. A peripheral face forming each U-shaped cutout is rounded so that an outer surface of the cylindrical cancel cam is connected with an inner surface by a rounded perhipheral face forming the cutout.
摘要翻译：一种用于汽车的方向盘的旋转传递机构。联接装置的旋转构件具有径向向内延伸的突起，而取消凸轮具有相应的U形切口以分别接收突起。每个突起具有渐缩到其底端的锥形部分。形成每个U形切口的外周面是圆形的，使得圆柱形取消凸轮的外表面通过形成切口的圆形的周边面与内表面连接。

5. 发明授权

US4331447A Coal treatment for ash removal and agglomeration 失效
标题翻译：用于除灰和聚集的煤处理
公开(公告)号：US4331447A
公开(公告)日：1982-05-25
申请号：US169807
申请日：1980-07-17
申请人： Hiroshi Kamada , Kazumoto Saito , Toshiaki Murata , Tadahisa Miwa , Masao Goto , Toshiro Fukuda , Hitoshi Taguchi
发明人： Hiroshi Kamada , Kazumoto Saito , Toshiaki Murata , Tadahisa Miwa , Masao Goto , Toshiro Fukuda , Hitoshi Taguchi
IPC分类号： C10L9/00 , B01J2/28 , B03B1/04 , B03B9/00 , B03D20060101 , C10L5/00 , C10L5/06 , C10L9/10 , C10L10/18 , C10L5/14
CPC分类号： B03B9/005 , B03B1/04 , C10L5/06
摘要： Coal particles can be agglomerated with simultaneous ash removal therefrom by adding an oil fraction to an aqueous slurry of coal particles which contains a surfactant and optionally an inorganic electrolyte.
摘要翻译：煤颗粒可以通过向包含表面活性剂和任选的无机电解质的煤颗粒的含水浆料中加入油馏分而同时除灰。

6. 发明授权

US06248253B1 Hexagonal ferrite magnets 有权
标题翻译：六角铁氧体磁铁
公开(公告)号：US06248253B1
公开(公告)日：2001-06-19
申请号：US09272338
申请日：1999-03-19
申请人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida
发明人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida
IPC分类号： C04B3540
CPC分类号： C04B35/2633 , C04B35/2641 , H01F1/10
摘要： An object of the invention is to simultaneously increase the saturation magnetization and magnetic anisotropy of M type ferrite, thereby realizing a hexagonal ferrite magnet having a high remanence and high coercivity which could never be achieved in prior art M type hexagonal ferrite magnets. The object is attained by a hexagonal ferrite magnet comprising A, R, and Fe, wherein A represents at least one element selected from among Sr, Ba, and Ca, and R represents an element capable of assuming a valence of +3 or +4 and having an ionic radius of at least 1.00 angstrom, and n/N is up to 0.35 provided that N is the total number of crystal grains and n is the number of crystal grains having stacking faults.
摘要翻译：本发明的目的是同时提高M型铁氧体的饱和磁化强度和磁各向异性，从而实现了在现有技术的M型六角铁氧体磁体中永远不可能实现的具有高剩磁和高矫顽力的六方晶系铁氧体磁体。该目的是通过包含A，R和Fe的六方晶系铁氧体磁体来实现的，其中A表示选自Sr，Ba和Ca中的至少一种元素，R表示能够呈现+3或+4价的元素并具有至少1.00埃的离子半径，并且n / N至多为0.35，条件是N是晶粒的总数，n是具有堆垛层错的晶粒数。

7. 发明申请

US20070023970A1 Method for producing ferrite sintered magnet 审中-公开
标题翻译：铁氧体烧结磁体的制造方法
公开(公告)号：US20070023970A1
公开(公告)日：2007-02-01
申请号：US11447600
申请日：2006-06-05
申请人： Kiyoyuki Masuzawa , Toshinori Miya , Yasumi Takatsuka , Hitoshi Taguchi , Shunsuke Kurasawa
发明人： Kiyoyuki Masuzawa , Toshinori Miya , Yasumi Takatsuka , Hitoshi Taguchi , Shunsuke Kurasawa
IPC分类号： H01F1/00 , H05B6/00 , B29C71/04
CPC分类号： H01F1/11 , C04B35/2608 , C04B35/2633 , C04B35/6262 , C04B35/632 , C04B35/638 , C04B2235/32 , C04B2235/3203 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3217 , C04B2235/3227 , C04B2235/3232 , C04B2235/3239 , C04B2235/3241 , C04B2235/3244 , C04B2235/3251 , C04B2235/3256 , C04B2235/3258 , C04B2235/3262 , C04B2235/3275 , C04B2235/3277 , C04B2235/3279 , C04B2235/3281 , C04B2235/3286 , C04B2235/3287 , C04B2235/3293 , C04B2235/3294 , C04B2235/3418 , C04B2235/5445 , C04B2235/605 , C04B2235/6562 , C04B2235/72 , C04B2235/767 , C04B2235/785 , H01F41/0273
摘要： There is provided a method for producing a La—Co based ferrite magnet by using a polyhydric alcohol as a dispersant, the method capable of suppressing the composition deviation. The production method is a method for producing an M-type hexagonal ferrite sintered magnet that includes, as main constituents thereof, Fe, an element A (A including at least one element selected from Sr, Ba and Pb), an element R (R including at least one element selected from rare earth elements and Bi, and including La as an essential component) and an element Me (Me including Co or including Co and Zn), the method including a molding step of obtaining a molded body by pressure molding, in a magnetic filed in a predetermined direction, a slurry for molding prepared by dispersing a powder mainly composed of a ferrite in water as a dispersion medium and by adding a dispersant, and a sintering step of obtaining the ferrite sintered magnet by sintering the molded body, wherein when the dispersant is a polyhydric alcohol represented by the general formula Cn(OH)nHn+2, the concentration of B in the water to be used for preparing the slurry for molding is set at 1 ppm or less.
摘要翻译：提供了通过使用多元醇作为分散剂来生产La-Co系铁氧体磁体的方法，该方法能够抑制组成偏差。制造方法是一种M型六方晶系铁氧体烧结磁体的制造方法，其主要成分为Fe，元素A（含有选自Sr，Ba和Pb中的至少一种元素的A），元素R（R 包括选自稀土元素和Bi中的至少一种元素，并且包括La作为必要成分）和元素Me（Me包括Co或包括Co和Zn），所述方法包括通过压力成型获得成型体的模制步骤在预定方向的磁场中，通过将主要由铁素体组成的粉末分散在水中作为分散介质并通过添加分散剂而制备的用于模塑的浆料和通过烧结成型的烧结步骤来获得铁氧体烧结磁体其中当所述分散剂是由通式C（OH）n H n + 2 +表示的多元醇时，其浓度在用于制备用于成型的浆料的水中的B是s 等于或低于1ppm。

8. 发明申请

US20060219323A1 Magnetic field forming device, ferrite magnet producing method, and mold 审中-公开
标题翻译：磁场成形装置，铁氧体磁铁制造方法和模具
公开(公告)号：US20060219323A1
公开(公告)日：2006-10-05
申请号：US10567713
申请日：2005-03-30
申请人： Kiyoyuki Masuzawa , Hideo Kurita , Masayuki Ohtsuka , Yasuhiro Nagatsuka , Hitoshi Taguchi
发明人： Kiyoyuki Masuzawa , Hideo Kurita , Masayuki Ohtsuka , Yasuhiro Nagatsuka , Hitoshi Taguchi
IPC分类号： H01F1/03 , B22F1/00 , B22D41/01
CPC分类号： H01F1/113 , C04B35/622 , H01F41/0266
摘要： The objects of the present invention are to provide a magnetic field molding device, and method for producing a ferrite magnet, or the like, capable of improving yield in a production line and stabilizing product quality, and method for producing a ferrite magnet. In molding in a magnetic field, the mortar-shaped die 19 provided with a plurality of the cavities 13 is heated by the heater member 20 at a given temperature level, under the control of the controller 23. The temperature level is preferably controlled by the controller 23 at 40° C. or higher as mortar-shaped die 19 temperature T1, sensed by the sensor 22. A molding slurry can be kept at a high temperature level in the cavities 13 by heating the mortar-shaped die 19, and can have high dehydration properties and improve product yield.
摘要翻译：本发明的目的是提供一种能够提高生产线的成品率和稳定产品质量的磁场成型装置和制造铁氧体磁体的方法，以及制造铁氧体磁体的方法。在磁场模制中，在控制器23的控制下，设置有多个空腔13的砂浆模19被加热器构件20以给定的温度水平加热。温度水平优选由控制器23在40℃以上作为由传感器22检测的砂浆模19温度T 1控制。可以通过加热砂浆模具19将模制浆料保持在空腔13中的高温水平，并且可以具有高脱水性能并提高产品产率。

9. 发明授权

US06258290B1 Magnet powder, sintered magnet, process for producing them, bonded magnet, motor and magnetic recording medium 有权
标题翻译：磁铁粉末，烧结磁体，制造方法，粘结磁体，马达和磁记录介质
公开(公告)号：US06258290B1
公开(公告)日：2001-07-10
申请号：US09593008
申请日：2000-06-13
申请人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
发明人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
IPC分类号： C04B3540
CPC分类号： C04B35/2641 , G11B5/70678 , H01F1/11 , H01F1/112 , H01F1/113
摘要： The magnetic powder and the sintered magnet of the invention contains a primary phase of a hexagonal ferrite containing A, Co or R wherein A represents Sr, Ba or Ca, and R represents at least one element which may be rare earth elements including Y, and Bi, and have at least two different Curie temperatures. wherein the two different Curie temperatures are present within a range of from 400 to 480° C., and an absolute value of a difference therebetween is 5° C. or more. As both the saturation magnetization and the magnetic anisotropy of the M type ferrite therein are increased, the magnetic powder and the wintered magnet have a high residual magnetic flux density and a high coercive force, which conventional M type ferrite magnets could not have, while having excellent temperature characteristics of coercive force.
摘要翻译：本发明的磁性粉末和烧结磁体含有含有A，Co或R的六方晶系铁氧体的主相，其中A表示Sr，Ba或Ca，R表示至少一种可包括Y的稀土元素， Bi，并且具有至少两个不同的居里温度。其中两个不同的居里温度存在于400至480℃的范围内，并且它们之间的差值的绝对值为5℃或更高。随着其中M型铁氧体的饱和磁化强度和磁各向异性的增加，磁粉和烧结磁体都具有高常数M型铁氧体磁体不能具有的高残余磁通密度和高矫顽力，同时具有优良的矫顽力温度特性。

10. 发明授权

US6086781A Magnet powder, sintered magnet, process for producing them, bonded magnet, motor and magnetic recording medium 有权
标题翻译：磁铁粉末，烧结磁体，制造方法，粘结磁体，马达和磁记录介质
公开(公告)号：US6086781A
公开(公告)日：2000-07-11
申请号：US314013
申请日：1999-05-19
申请人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
发明人： Hitoshi Taguchi , Kiyoyuki Masuzawa , Yoshihiko Minachi , Kazumasa Iida , Mitsuaki Sasaki , Fumihiko Hirata
IPC分类号： C04B35/26 , G11B5/706 , H01F1/11 , H01F1/113 , C04B35/40
CPC分类号： C04B35/2641 , G11B5/70678 , H01F1/11 , H01F1/112 , H01F1/113
摘要： The magnetic powder and the sintered magnet of the invention contains a primary phase of a hexagonal ferrite containing A, Co or R wherein A represents Sr, Ba or Ca, and R represents at least one element which may be rare earth elements including Y, and Bi, and have at least two different Curie temperatures, wherein the two different Curie temperatures are present within a range of from 400 to 480.degree. C., and an absolute value of a difference therebetween is 5.degree. C. or more. As both the saturation magnetization and the magnetic anisotropy of the M type ferrite therein are increased, the magnetic powder and the wintered magnet have a high residual magnetic flux density and a high coercive force, which conventional M type ferrite magnets could not have, while having excellent temperature characteristics of coercive force.
摘要翻译：本发明的磁性粉末和烧结磁体含有含有A，Co或R的六方晶系铁氧体的主相，其中A表示Sr，Ba或Ca，R表示至少一种可包括Y的稀土元素， Bi，并且具有至少两种不同的居里温度，其中两种不同的居里温度存在于400至480℃的范围内，其差值的绝对值为5℃或更高。随着其中M型铁氧体的饱和磁化强度和磁各向异性的增加，磁粉和烧结磁体都具有高常数M型铁氧体磁体不能具有的高残余磁通密度和高矫顽力，同时具有优良的矫顽力温度特性。

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