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11. 发明授权

US4643765A Tin-containing ferrous composite powder and method of producing same and tin-containing sintered magnetic material 失效
标题翻译：含锡铁粉复合粉及其制造方法和含锡烧结磁性材料
公开(公告)号：US4643765A
公开(公告)日：1987-02-17
申请号：US743480
申请日：1985-06-11
申请人： Shigeaki Takajo
发明人： Shigeaki Takajo
IPC分类号： B22F1/00 , B22F1/02 , C22C33/02 , H01F1/22 , C22C33/00
CPC分类号： B22F1/025 , C22C33/0207 , H01F1/22 , Y10T428/12181
摘要： As the raw material of a ferrous sintered alloy, a ferrous composite powder excellent in both compressibility and distribution of alloying elements is obtained by mixing an iron powder or a Sn-free low-alloy iron powder with at least one secondary powder comprising at least one of C, Co, Cr, Cu, Mn, Mo, Ni, P and Si and another powder comprising Sn and heating the powder mixture in a nonoxidizing atmosphere at 250.degree.-900.degree. C. to result in that the secondary powder(s) is at least partially bonded to the iron particles with Sn as a sort of cementing medium. In the powder mixture the content of Sn is 0.1-20 wt %, and the weight ratio of the secondary powder(s) to Sn is not greater than 50:1. Also disclosed is a ferrous sintered magnetic material high in magnetic flux density and small in iron loss, which contains 1-12 wt % of Si, 0.05-7 wt % of Sn and, optionally, 0.05-2 wt % of P and in which Sn concentrates on the surfaces of iron particles.
摘要翻译：作为铁类烧结合金的原料，通过将铁粉或无Sn低合金铁粉与至少一种二次粉末混合，得到合金元素的压缩性和分布均优异的铁质复合粉末，的C，Co，Cr，Cu，Mn，Mo，Ni，P和Si以及另一种包含Sn的粉末，并在250-900℃的非氧化气氛中加热粉末混合物，至少部分地以Sn作为一种固井介质粘结到铁颗粒上。在粉末混合物中，Sn的含量为0.1-20重量％，二次粉末与Sn的重量比不大于50:1。还公开了磁通密度高，铁损小的铁类烧结磁性材料，其含有1-12重量％的Si，0.05-7重量％的Sn和任选的0.05-2重量％的P，其中 Sn集中在铁颗粒表面。

12. 发明授权

US06207103B1 Fe-Cr-Si steel sheets having excellent corrosion resistance and method for manufacturing the same 失效
标题翻译：具有优异耐腐蚀性的Fe-Cr-Si钢板及其制造方法
公开(公告)号：US06207103B1
公开(公告)日：2001-03-27
申请号：US09123969
申请日：1998-07-29
申请人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
发明人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
IPC分类号： C22C3818
CPC分类号： C22C38/34
摘要： Fe—Cr—Si steel sheet having an excellent corrosion resistance and high toughness and method for manufacturing the same; the amount of Cr is about 10-30 wt %, the total amount of C and N is not more than about 100 ppm and the remainder consists of Fe and incidental impurities; when a cast piece of this steel is subjected to hot rolling to roll into a thickness of not more than about 3 mm, the hot rolled sheet can be subjected to cold rolling or to warm rolling without annealing.
摘要翻译：具有优异的耐腐蚀性和高韧性的Fe-Cr-Si钢板及其制造方法; Cr的量为约10-30重量％，C和N的总量不大于约100ppm，其余由Fe和附带的杂质组成; 当将该钢的铸件进行热轧轧制成不大于3mm的厚度时，可以对热轧板进行冷轧或不进行退火的温轧。

13. 发明授权

US5308702A Iron-based powder composition for use in powder metallurgy, process for its production and process for producing iron-base sintered material 失效
标题翻译：用于粉末冶金的铁基粉末组合物，其生产方法和生产铁基烧结材料的方法
公开(公告)号：US5308702A
公开(公告)日：1994-05-03
申请号：US827343
申请日：1992-01-29
申请人： Osamu Furukimi , Koji Yano , Shigeaki Takajo
发明人： Osamu Furukimi , Koji Yano , Shigeaki Takajo
IPC分类号： B22F1/02 , C22C33/02 , B22F1/00 , B32B15/02
CPC分类号： C22C33/0207 , Y10T428/12181 , Y10T428/2991 , Y10T428/2998
摘要： Improved iron-base powder composition for use in powder metallurgy comprising an iron-base powder to the surfaces of the particles of which either an Fe-Ni powder alloy containing 5-70 wt % Ni or an Fe-Mo alloy powder containing 20-70 wt % Mo or both alloy powders is adhered means of a binder or binders. This iron-base powder composition can be obtained by a process in which either an Fe-Ni alloy powder containing 5-70 wt % Ni or an Fe-Mo alloy powder containing 20-70 wt % Mo or both alloy powders is adhered by thermally melting a binder. The thus obtained iron-base powder composition can be shaped and sintered to produce an iron-base sintered material. The iron-base powder composition is suitable for use in the powder metallurgical manufacture of iron-base sintered parts that require high density, high strength, toughness, wear resistance and good dimensional change stability.
摘要翻译：改进的用于粉末冶金的铁基粉末组合物，其包含铁基粉末到颗粒表面，其中含有5-70重量％Ni的Fe-Ni粉末合金或含有20-70重量％的Fe-Mo合金粉末 wt％Mo或两种合金粉末是粘合剂或粘合剂的粘合方式。该铁基粉末组合物可以通过以下方法获得：将含有5-70重量％Ni的Fe-Ni合金粉末或含有20-70重量％Mo的Fe-Mo合金粉末或两种合金粉末通过热粘合熔化粘合剂由此获得的铁基粉末组合物可以成形并烧结以制备铁基烧结材料。铁基粉末组合物适用于需要高密度，高强度，韧性，耐磨性和良好的尺寸变化稳定性的铁基烧结零件的粉末冶金制造。

14. 发明授权

US4946499A Method of preparing iron base powder mixture for pm 失效
标题翻译：制备铁基粉末混合物的方法
公开(公告)号：US4946499A
公开(公告)日：1990-08-07
申请号：US252066
申请日：1988-09-29
申请人： Ichio Sakuranda , Ritsuo Okabe , Takao Omura , Yoshisato Kiyota , Shigeaki Takajo
发明人： Ichio Sakuranda , Ritsuo Okabe , Takao Omura , Yoshisato Kiyota , Shigeaki Takajo
IPC分类号： B22F1/00 , B22F3/02 , C22C33/02 , C22C38/00 , C22C38/16
CPC分类号： B22F1/0077 , B22F1/0059 , C22C33/0207 , B22F2001/0066 , B22F2998/00
摘要： An iron base powder mixture for powder metallurgy, comprising an iron based powder and an alloying powder and/or a powder for improving machinability, wherein the alloying powder and/or the powder for improving machinability are adhered to the surface of the ferrous powder by means of a melted-together binder composed of an oil and a metal soap or wax.

15. 发明授权

US06416592B2 Electromagnetic steel sheet having excellent magnetic properties and production method thereof 有权
标题翻译：磁性优异的电磁钢板及其制造方法
公开(公告)号：US06416592B2
公开(公告)日：2002-07-09
申请号：US09779041
申请日：2001-02-08
申请人： Osamu Kondo , Akihiro Matsuzaki , Shigeaki Takajo
发明人： Osamu Kondo , Akihiro Matsuzaki , Shigeaki Takajo
IPC分类号： H01F114
CPC分类号： C21D8/1222 , H01F1/16
摘要： Electromagnetic steel sheet having excellent magnetic properties and a texture gratly integrated in the {100} orientation, and an uncomplicated and low cost production method; with about a 15 &mgr;&OHgr;·cm or more specific resistivity, about a 2.0 or more {100} integration degree/{111} integration degree and about a 10 &mgr;m to 500 &mgr;m grain diameter; when about 0.1 to 3.5% by weight of Si is present, the {100} integration degree is about 10 or more; when about 0.2 to 1.2% by weight of P is present, the{100} integration degree is about 3 or more; by applying a large reduction ratio to a steel slab in the vicinity of the final stage of hot rolling, with the hot rolling finishing temperature controlled at about 750 to 1150° C., hot rolled steel having a texture highly integrated in the {100} orientation is economically produced.
摘要翻译：具有优良的磁性能和结合在{100} <001>取向的结构的电磁钢板，以及不复杂和低成本的生产方法; 具有大约15μmOMEGA.cm或更高的电阻率，约2.0或更多{100} <001>积分度/ {111} 积分度和约10μm至500μm的粒径; 当存在约0.1至3.5重量％的Si时，{100} <001>整合度为约10或更大; 当存在约0.2-1.2重量％的P时，{100} <001>整合度为约3或更大; 通过对热轧最后阶段附近的钢坯施加大的压下率，在热轧精轧温度控制在约750〜1150℃的条件下，具有高度集成在{100} <001>方向经济地生产。

16. 发明授权

US6162306A Electromagnetic steel sheet having excellent high-frequency magnetic properities and method 有权
标题翻译：具有优异的高频磁性的电磁钢板和方法
公开(公告)号：US6162306A
公开(公告)日：2000-12-19
申请号：US181179
申请日：1998-10-28
申请人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
发明人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
IPC分类号： C21D8/12 , C22C38/34 , H01F1/147
CPC分类号： C22C38/34 , C21D8/12
摘要： Electromagnetic steel sheets which contain Cr in an amount of from about 1.5 to 20% by weight and Si in an amount of from about 2.5 to 10% by weight, while having a total amount of C and N of not larger than about 100 ppm by weight, and which has a specific resistivity of not smaller than about 60 .mu..OMEGA..multidot.cm.
摘要翻译：含有约1.5〜20重量％的Cr和约2.5〜10重量％的Si的电磁钢板，而C和N的总量不大于约100ppm，重量，其电阻率不小于约60微米欧米茄×厘米。

17. 发明授权

US5135566A Iron base powder mixture and method 失效
标题翻译：铁粉粉末混合物及方法
公开(公告)号：US5135566A
公开(公告)日：1992-08-04
申请号：US686846
申请日：1991-04-17
申请人： Ichio Sakuranda , Ritsuo Okabe , Takao Omura , Yoshisato Kiyota , Shigeaki Takajo
发明人： Ichio Sakuranda , Ritsuo Okabe , Takao Omura , Yoshisato Kiyota , Shigeaki Takajo
IPC分类号： B22F1/00 , C22C33/02
CPC分类号： B22F1/0077 , B22F1/0059 , C22C33/0207 , B22F2001/0066 , B22F2998/00
摘要： An iron base powder mixture for powder metallurgy, comprising an iron based powder and an alloying powder and/or a powder for improving machinability, wherein the alloying powder and/or the powder for improving machinability are adhered to the surface of the ferrous powder by means of a melted-together binder composed of an oil and a metal soap or wax.
摘要翻译： 1.一种粉末冶金用铁粉末混合物，其特征在于，含铁基粉末和合金粉末和/或粉末，以提高机械加工性，其中用于提高机械加工性的合金粉末和/或粉末通过装置粘附在铁粉的表面上由油和金属皂或蜡组成的熔融粘合剂。

18. 发明授权

US06827757B2 Magnetite-iron based composite powder, magnetite-iron based powder mixture, method for producing the same, method for remedying polluted soil, water or gases and electromagnetic wave absorber 失效
公开(公告)号：US06827757B2
公开(公告)日：2004-12-07
申请号：US10157604
申请日：2002-05-29
申请人： Yukiko Ozaki , Satoshi Uenosono , Hiroki Nakamaru , Yukiko Nakamura , Shigeaki Takajo , Shigeru Unami , Shingo Saito
发明人： Yukiko Ozaki , Satoshi Uenosono , Hiroki Nakamaru , Yukiko Nakamura , Shigeaki Takajo , Shigeru Unami , Shingo Saito
IPC分类号： B22F100
CPC分类号： B82Y30/00 , C01G23/003 , C01G49/009 , C01G49/06 , C01G49/08 , C01G51/006 , C01G53/00 , C01G53/006 , C01P2002/52 , C01P2002/54 , C01P2002/74 , C01P2004/45 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/10 , C01P2006/42 , C01P2006/60 , C01P2006/80
摘要： A magnetite-iron based composite powder includes magnetite with a ratio of X-ray diffraction intensity to that of &agr;-Fe of about 0.001 to about 50 and has an average primary particle size of about 0.1 to about 10 &mgr;m. The composite powder can highly dehalogenate organic halogen compounds and exhibits satisfactory absorption power of high frequency electromagnetic waves after molding. An ultrafine nonferrous inorganic compound powder may adhere to the surface of the composite powder, or at least the composite powder may adhere to the surfaces of small particles of a nonferrous inorganic compound to thereby yield a composite powder composition. The composite powder can be produced by partial reduction of a material powder containing a hematite based powder or by complete reduction and subsequent partial oxidation of the material powder.

19. 发明授权

US06364962B1 Electromagnetic steel sheet having excellent high-frequency magnetic properties and method 有权
标题翻译：具有优异的高频磁性能和方法的电磁钢板
公开(公告)号：US06364962B1
公开(公告)日：2002-04-02
申请号：US09649944
申请日：2000-08-29
申请人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
发明人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
IPC分类号： H01F1147
CPC分类号： C22C38/34 , C21D8/12
摘要： Electromagnetic steel sheets which contain Cr in an amount of from about 1.5 to 20% by weight and Si in an amount of from about 2.5 to 10% by weight, while having a total amount of C and N of not larger than about 100 ppm by weight, and which has a specific resistivity of not smaller than about 60 &mgr;&OHgr;·cm.
摘要翻译：含有约1.5〜20重量％的Cr和约2.5〜10重量％的Si的电磁钢板，而C和N的总量不大于约100ppm，重量，其电阻率不小于约60μOMEGA.cm。

20. 发明授权

US06322638B1 Electromagnetic steel sheet having excellent high-frequency magnetic properties 有权
标题翻译：具有优异的高频磁性能的电磁钢板
公开(公告)号：US06322638B1
公开(公告)日：2001-11-27
申请号：US09649945
申请日：2000-08-29
申请人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
发明人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
IPC分类号： H01F1147
CPC分类号： C22C38/34 , C21D8/12
摘要： Electromagnetic steel sheets which contain Cr in an amount of from about 1.5 to 20% by weight and Si in an amount of from about 2.5 to 10% by weight, while having a total amount of C and N of not larger than about 100 ppm by weight, and which has a specific resistivity of not smaller than about 60 &mgr;&OHgr;·cm.
摘要翻译：含有约1.5〜20重量％的Cr和约2.5〜10重量％的Si的电磁钢板，而C和N的总量不大于约100ppm，重量，其电阻率不小于约60μOMEGA.cm。

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