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1. 发明专利

JP2003041303A Metal member and manufacturing method therefor 有权
标题翻译：金属构件及其制造方法
公开(公告)号：JP2003041303A
公开(公告)日：2003-02-13
申请号：JP2001230236
申请日：2001-07-30
申请人： Tdk Corp , ティーディーケイ株式会社
发明人： YAMAMOTO TOMOMI , NISHIZAWA KOICHI , ISHIZAKA TSUTOMU , MORI TERUO
IPC分类号： B22F3/24 , C22C38/00 , H01F41/02
CPC分类号： H01F41/026
摘要： PROBLEM TO BE SOLVED: To form a corrosion resistant film on a substrate including a rare- earth metal element, without employing third components such as a resin and a coupling agent, and lowering magnetic properties.
SOLUTION: This manufacturing method is characterized by spraying a fluid mixture of a metal powder for forming the film and a high pressure gas, onto the pure surface (a fresh surface) free from oxidation or the like, of a metal. Then, the metal powder uniformly and strongly adheres to the whole surface of the substrate through a mechano-chemical reaction, to form the corrosion resistant film.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：在包括稀土金属元素的基板上形成耐腐蚀膜，而不需要使用诸如树脂和偶联剂的第三成分，并且降低磁特性。解决方案：该制造方法的特征在于，在金属的纯的表面（新鲜的表面）上喷涂用于形成薄膜和高压气体的金属粉末的流体混合物（没有氧化等）。然后，金属粉末通过机械化学反应均匀地强烈地附着在基板的整个表面上，形成耐腐蚀膜。

2. 发明专利

JP2003017349A Method of manufacturing magnet 审中-公开
标题翻译：制造磁铁的方法
公开(公告)号：JP2003017349A
公开(公告)日：2003-01-17
申请号：JP2001202402
申请日：2001-07-03
申请人： Tdk Corp , ティーディーケイ株式会社
发明人： YAMAMOTO TOMOMI , UCHIYAMA RYOTA , NISHIZAWA KOICHI , ISHIZAKA TSUTOMU
IPC分类号： C23C18/12 , C22C38/00 , H01F41/02
CPC分类号： H01F41/026
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a magnet at low cost which can manufacture the magnet little in a loss of its magnetic characteristics, excellent in corrrosion resistance and adhesion having a protective film with few possibility of contaminating the periphery of the magnet.
SOLUTION: A method of manufacturing a magnet has a process for forming a polysilazane film on the surface of a rare-earth element-containing magnet main body, and a process for obtaining a glassy protective film from the polysilazane film.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了提供一种能够以低成本制造磁体的方法，其可以在磁性特性的损失很少的情况下制造磁体，具有优异的耐腐蚀性和具有保护膜的粘合性，其保护膜几乎不会污染磁体的周围。解决方案：一种制造磁体的方法具有在含稀土元素磁体主体的表面上形成聚硅氮烷膜的方法和从聚硅氮烷膜获得玻璃状保护膜的方法。

3. 发明专利

HK1088710A1 R-T-B BASED PERMANENT MAGNET 未知
公开(公告)号：HK1088710A1
公开(公告)日：2006-11-10
申请号：HK06109069
申请日：2006-08-15
申请人： TDK CORP
发明人： HIDAKA TETSUYA , OKADA HIRONARI , SAKAMOTO KAZUYA , SAKAMOTO TAKESHI , NAKAYAMA YASUYUKI , YAMAMOTO TOMOMI
IPC分类号： C22C20100101 , H01F20100101 , H01F1/057 , H01F41/02
摘要： An R-T-B system permanent magnet 1 comprises a magnet body 2 comprising a sintered body comprising at least a main phase comprising R 2 T 14 B grains (wherein R represents one or more rare earth elements, and T represents one or more transition metal elements including Fe or Fe and Co essentially) and a grain boundary phase containing R in a larger amount than the main phase, the magnet body 2 having a 300 µm or less thick (not inclusive of zero thick) hydrogen-rich layer 21 having a hydrogen concentration of 300 ppm to 1000 ppm formed in the surface layer portion, and an overcoat 3 covering the surface of the magnet body 2 can improve the corrosion resistance of the R-T-B system permanent magnet 1 with an overcoat 3 formed thereon without degrading the magnetic properties thereof. The present invention can be applied to formation of the overcoat 3 by electrolytic plating, can fully ensure the corrosion resistance as a primary target of the overcoat 3 formation without substantially degrading the production efficiency, and can provide the R-T-B system permanent magnet 1 with a high dimensional precision by suppressing the partial collapse (detachment of grains) of the surface thereof.

4. 发明专利

HK1019504A1 PREPARATION OF MAGNET 未知
公开(公告)号：HK1019504A1
公开(公告)日：2000-02-11
申请号：HK99103002
申请日：1999-07-13
申请人： TDK CORP
发明人： FUKUNO AKIRA , YAMAMOTO TOMOMI , YONEYAMA TETSUHITO , HIDAKA TETSUYA
IPC分类号： C22C38/00 , H01F1/053 , H01F1/059 , H01F7/02 , H01F41/02 , H01F

5. 发明公开

EP1643514A4 R-T-B BASED PERMANENT MAGNET 有权
标题翻译：用永久磁铁的R-T-B BASE
公开(公告)号：EP1643514A4
公开(公告)日：2009-11-11
申请号：EP04746731
申请日：2004-06-24
申请人： TDK CORP
发明人： HIDAKA TETSUYA , OKADA HIRONARI , SAKAMOTO KAZUYA , SAKAMOTO TAKESHI , NAKAYAMA YASUYUKI , YAMAMOTO TOMOMI
IPC分类号： H01F41/02 , C22C38/00 , H01F1/057
CPC分类号： C22C38/005 , H01F1/0577 , H01F41/026 , H01F41/26 , Y10T428/12465

6. 发明专利

JP2005286173A R-t-b based sintered magnet 审中-公开
标题翻译：基于R-T-B的烧结磁体
公开(公告)号：JP2005286173A
公开(公告)日：2005-10-13
申请号：JP2004099447
申请日：2004-03-30
申请人： Tdk Corp , Tdk株式会社
发明人： HIDAKA TETSUYA , NAKAMURA HIDEKI , KATO EIJI , NAKANE MAKOTO , YAMAMOTO TOMOMI
IPC分类号： C22C38/00 , H01F1/053 , H01F1/08
摘要： PROBLEM TO BE SOLVED: To enable acquisition of a high coercivity and possession of a wide sintering temperature width by providing a fine crystalline structure, even when the quantity of oxygen in a sintered body is low. SOLUTION: An R-T-B based sintered magnet is a sintered body which comprises main phase crystalline grains made of an R 2 T 14 B phase (R denoting one, two, or more types of elements selected from among rare earth elements, T denoting one, two, or more types of elements selected from among transition metal elements including Fe, Fe and Co), and a grain boundary phase, including more Rs than the main phase crystalline grains. The sintered body includes an Nb-Fe compound in the main-phase crystalline grains. The R-T-B based sintered magnet can be obtained by a mixing method of including Nb in an alloy for main phase formation. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使当烧结体中的氧气量低时，通过提供细晶体结构，能够获得高的矫顽力和拥有宽的烧结温度宽度。解决方案：基于RTB的烧结磁体是烧结体，其包括由R SB SB B相14相组成的主相晶粒（R表示一个，两个，或更多种类型的选自稀土元素的元素，T表示选自包括Fe，Fe和Co的过渡金属元素中的一种，两种或更多种元素）和晶界相，包括比主相更多的Rs 晶粒。烧结体包含主相晶粒中的Nb-Fe化合物。 R-T-B系烧结磁体可以通过在用于主相形成的合金中包含Nb的混合方法获得。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2002222723A METHOD OF MANUFACTURING MAGNET 失效
公开(公告)号：JP2002222723A
公开(公告)日：2002-08-09
申请号：JP2001020636
申请日：2001-01-29
申请人： TDK CORP
发明人： NAKAMURA HIDEKI , IWASAKI MAKOTO , NISHIZAWA KOICHI , YAMAMOTO TOMOMI
IPC分类号： H01F41/02 , H01F1/059
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a rare earth nitride magnet having high magnet characteristics. SOLUTION: This magnet manufacturing method comprises a quenching process of obtaining a quenched alloy by the use of a single roll method, a thermal treatment process of enabling the quenched alloy to undergo a thermal treatment for controlling its structure, and a nitriding process of making the thermally treated quenched alloy subjected to nitriding. Provided that a position at which the direction of discharging alloy melt intersects the circumferential face of the cooling roll is represented by Ep, and the tangential line of the circumferential face of the cooling roll at the position Ep is represented by TL in the plane that contains a direction in which the quenched alloy flies off separating from the peripheral surface of a cooling roll and a vertical direction, a fan-shaped region which includes the position Ep as its center, has a central angle of 2 deg. to 10 deg., and contains the tangential line TL is set up, the quenched alloy flying off in the fan-shaped region is caught, and a magnet is manufactured by the use of the caught quenched alloy in this magnet manufacturing method.

8. 发明专利

JP2000124017A MANUFACTURE OF MAGNET 失效
公开(公告)号：JP2000124017A
公开(公告)日：2000-04-28
申请号：JP30951498
申请日：1998-10-15
申请人： TDK CORP
发明人： IWASAKI MAKOTO , FUKUNO AKIRA , YAMAMOTO TOMOMI , NAKAMURA HIDEKI
IPC分类号： H01F1/06 , C22C38/00 , H01F1/059
摘要： PROBLEM TO BE SOLVED: To provide a method with which an Sm-Fe-N magnet having a good magnetic property can be manufactured stably. SOLUTION: A method of manufacturing a magnet containing R (R is one or more kinds of rare-earth elements, and inevitably include Sm), T (Fe or Fe and Co), and N includes a quenching process for obtaining a thin strip-like quenched alloy by the use of a single roll method, in which a molten alloy containing R and T is quenched by discharging the molten alloy from the discharge opening of a nozzle, so that the alloy may come into collision with the peripheral surface of a cooling roller. In the quenching process, a chamber in which the cooling roller is positioned is maintained in a rare gas atmosphere of 10 Torr or higher in pressure, and the molten is discharged by applying a discharge pressure of 300 Torr or higher to the discharge opening.

9. 发明专利

JPH09298111A RESIN-CONTAINING ROLLED SHEET MAGNET AND MANUFACTURING METHOD THEREOF 失效
公开(公告)号：JPH09298111A
公开(公告)日：1997-11-18
申请号：JP13283996
申请日：1996-04-30
申请人： TDK CORP
发明人： FUKUNO AKIRA , YAMAMOTO TOMOMI , HIDAKA TETSUYA , IWASAKI MAKOTO
IPC分类号： H01F1/053 , C22C38/00 , H01F1/059 , H01F7/02 , H01F41/02
摘要： PROBLEM TO BE SOLVED: To provide a resin-containing rolled sheet magnet having a high coercive force and high energy product at low cost. SOLUTION: Thus magnetic uses a magnet powder having a soft and hard magnetic phases. This powder is composed of 3-15atom.% of R (at least one of rare earth elements), 5-25atom.% of N, 0.5-10atom.% of M (at least one of Zr, Ti, V, Cr, Nb, Hf, Ta, Mo, W, Al, C and P) and T (Fe and/or Co) substantially the rest. The magnetic is 2mm or less thick. The magnetic powder has high magnetic characteristics and superior in oxidation resistance enough to allow the kneading, pulverizing, forming and heat treating steps to be made in air for producing the sheet magnetic and the atmosphere control is not needed to result in a low cost.

10. 发明专利

JPH08316018A MAGNET AND BONDED MAGNET 失效
公开(公告)号：JPH08316018A
公开(公告)日：1996-11-29
申请号：JP19700195
申请日：1995-07-10
申请人： TDK CORP
发明人： YONEYAMA TETSUTO , YAMAMOTO TOMOMI , HIDAKA TETSUYA , FUKUNO AKIRA
IPC分类号： C22C38/00 , H01F1/053 , H01F1/059 , H01F1/08
摘要： PURPOSE: To provide a low-cost magnet having high coercive force, high rectangular ratio and high energy product. CONSTITUTION: A magnet contains R (R is one or more types of rare earth elements, the Sm ratio in the R is 50 atomic % or more), T (Fe or Fe and Co), N and M (Zr or the part of Zr is substituted with one or more types of Ti, V, Cr, Nb, Hf, Ta, Mo, W, Al, C and P), wherein R amount is 4 to 8 atomic %, N amount is 10 to 20 atomic %, M amount is 2 to 10 atomic % and the residue is substantially T. In the magnet, there exists a hard magnetic phase containing R, T and N as main bodies and including one or more types of crystalline phases of TbCu7 type, Th2 Zn17 type and Th2 Ni17 type and soft magnetic phase made of T phase of bcc structure, wherein the mean crystalline grain size of the soft magnetic phase is 5 to 60nm, and the ratio of the soft magnetic phase is 10 to 60vol.%. With this structure, high coercive force is obtained, its rectangular ratio is high and high maximum energy product is realized.

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