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Nishiuchi Takeshi, Nozawa Noriyuki, Hirosawa Satoshi, Maki Tomohito, Bekki Katsunori: (Ja) r-fe-b系多孔質磁石およびその製造方法, (En) R-fe-b porous magnet and method for producing the same. Hitachi Metals, Nishiuchi Takeshi, Nozawa Noriyuki, Hirosawa Satoshi, Maki Tomohito, Bekki Katsunori, OKUDA Seiji, November 29, 2007: WO/2007/135981 (2 worldwide citation)

(EN) Disclosed is an R-Fe-B porous magnet having an aggregate structure of Nd2Fe14B crystal phases having an average crystal grain size of not less than 0.1 &mgr;m but not more than 1 &mgr;m. At least a part of the R-Fe-B porous magnet has a porous structure comprising fine pores having a length of ...


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Fujimura Setsuo, Sagawa Masato, Yamamoto Hitoshi, Hirosawa Satoshi: Aimant comportant des metaux du groupe des terres rares, a excellente resistance a la corrosion, Rare earth magnet having excellent corrosion resistance. Fujimura Setsuo, Sagawa Masato, Yamamoto Hitoshi, Hirosawa Satoshi, Sumitomo Special Metals, KIRBY EADES GALE BAKER, September 5, 1995: CA1336866

An (Fe, Co)-B-R tetragonal type magnet having a highcorrosion resistance, which has a boundary phase stabilized by Coand Al against corrosion, and which consists essentially of:0.2 - 3.0 at% Dy and 12 - 17 at% of the sum of Nd and Dy;5 - 10 at% B;0.5 - 13 at% Co;0.5 - 4 at% Al; andthe balance being ...


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Kanekiyo Hirokazu, Hirosawa Satoshi: Method of manufacturing thin plate magnet having microcrystalline structure. Sumitomo Special Metals, Kanekiyo Hirokazu, Hirosawa Satoshi, OSHIDA Yoshihisa, August 13, 1998: WO/1998/035364

A method of manufacturing an Nd-Fe-B microcrystalline permanent magnet which contains a low concentration of rare-earth elements, in which a soft magnetic phase and a hard magnetic phase are intermixed, which has, after cast, an inherent coercive force iHc of not less than 2.5 kOe and a residual flu ...


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Shigemoto Yasutaka, Hirosawa Satoshi, Miyoshi Toshio: (Ja) ナノコンポジット磁石、ナノコンポジット磁石用急冷合金、およびこれらの製造方法ならびに判別方法, (En) Nano-composite magnet, quenched alloy for nano-composite magnet, and method for producing them and method for distinguishing them. Neomax, Shigemoto Yasutaka, Hirosawa Satoshi, Miyoshi Toshio, OKUDA Seiji, June 23, 2005: WO/2005/057594

(EN) A nano-composite magnet which has an empirical formula: RxQyMz(Fe1-mTm)bal [wherein R represents one or more rare earth elements, Q represents one or more elements selected from the group consisting of B and C, M represents at least one metal element being selected from the group consisting of ...


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Miyoshi Toshio, Kanekiyo Hirokazu, Hirosawa Satoshi: Method for producing nanocomposite magnet using atomizing method. Sumitomo Special Metals, Miyoshi Toshio, Kanekiyo Hirokazu, Hirosawa Satoshi, OKUDA Seiji, February 13, 2003: WO/2003/012802

A method for producing an iron base rare earth alloy nanocomposite magnet powder, which comprises quenching by the atomizing method a molten alloy having the empirical formula represented by (Fe1−mTm)100−x−y−zQxRyTizMn , wherein T represents one or more elements selected from the group consisting of ...


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Wada Hirofumi, Hirosawa Satoshi: Magnetic refrigerant material, regenerator and magnetic refrigerator. Sumitomo Special Metals, Wada Hirofumi, Hirosawa Satoshi, OKUDA Seiji, January 30, 2003: WO/2003/009314

A magnetic refrigerant material exhibits sufficiently great magnetocaloric effect at or near room temperature. The magnetic refrigerant material has an NiAs type hexagonal structure in a ferromagnetic phase. The magnetic refrigerant material includes a first element Mn, a second element As and a thi ...


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Nishiuchi Takeshi, Kanekiyo Hirokazu, Hirosawa Satoshi, Miyoshi Toshio: Compound for rare earth element based bonded magnet and bonded magnet using the same. Sumitomo Special Metals, Nishiuchi Takeshi, Kanekiyo Hirokazu, Hirosawa Satoshi, Miyoshi Toshio, OKUDA Seiji, May 30, 2003: WO/2003/044811

A compound for a rare earth element based bonded magnet containing a rare earth element powder and a binding agent, characterized in that the rare earth element powder comprises, in an amount of 2 mass % or more, Ti−containing nanocomposite magnet powdery particles which have a composition represent ...


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Kanekiyo Hirokazu, Miyoshi Toshio, Hirosawa Satoshi: Nanocomposite magnet. Sumitomo Special Metals, Kanekiyo Hirokazu, Miyoshi Toshio, Hirosawa Satoshi, OKUDA Seiji, May 30, 2003: WO/2003/044812

A nanocomposite magnet has a composition represented by (Fe1-mTm) 100-x-y-z-n QxRyTizMn, where T is at least one of Co and Ni, Q is at least one of B and C, R is at least one rare earth element that always includes at least one of Nd and Pr and optionally includes Dy and/or Tb, and M is at least one ...


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Kanekiyo Hirokazu, Hirosawa Satoshi: Method of making material alloy for iron-based rare earth magnet. Sumitomo Special Metals, Kanekiyo Hirokazu, Hirosawa Satoshi, OKUDA Seiji, August 29, 2002: WO/2002/067275

A melt of an iron-based rare earth material alloy, represented by (Fe?1-m#191T?m#191)?100-x-y-z#191Q?x#191R?y#191M?z#191, is prepared. T is Co and/or Ni; Q is B and/or C; R is selected from Y (yttrium) and the rare earth elements; M is selected from Al, Si, Ti, V, Cr, Mn, Cu, Zn, Ga, Zr, Nb, Mo, Ag, ...