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Santoku Metal Industry Co., Ltd. Patents |
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Assignee: Santoku Metal Industry Co., Ltd.
Address: Kobe, JP
No. of patents: 22
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6328817 |
Powder for permanent magnet, method for its production and anisotropic permanent magnet made usi |
December 11, 2001 |
| There is provided a powder for permanent magnet comprising needle-like fine particles of Fe or Fe--Co alloy as a base material, a hard magnetic layer and a separation layer of an oxide of rare earth element provided outside said hard magnetic layer. |
| 6261517 |
Rare earth metal-nickel hydrogen storage alloy, a method for producing the same, and anode for n |
July 17, 2001 |
| A rare earth metal-nickel hydrogen storage alloy of a composition represented by the formula:(R stands for one or more rare earth elements including Sc and Y, not less than 95 atom % of which is one or more elements selected from the group consisting of La, Ce, Pr, and Nd; X stands for o |
| 6053995 |
Method of producing an age precipitation-containing rare earth metal-nickel alloy |
April 25, 2000 |
| A method of producing an age precipitation-containing rare earth metal-nickel alloy of AB.sub.5 type having a composition represented by a formula (1)wherein R stands for a rare earth element including Y or mixtures thereof, M stands for Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, W, B, or mixtures |
| 5980841 |
Method for recovering reusable elements from rare earth-nickel alloy |
November 9, 1999 |
| A method for recovering reusable elements including rare earth elements from a rare earth-nickel alloy is disclosed, including the steps of:preparing a slurry of the rare earth-nickel alloy,adding a diluted nitric acid solution to the slurry over a period of time under stirring at a temperat |
| 5964968 |
Rare earth metal-nickel hydrogen storage alloy, method for producing the same, and anode for nic |
October 12, 1999 |
| A rare earth metal-nickel hydrogen storage alloy having a composition represented by the formula (1)(R: La, Ce, Pr, Nd; L: Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca; M: Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Nb, Hf, Ta, W, B, C; 0.01.ltoreq.x.ltoreq.0.1; 0.ltoreq.y.ltoreq.0.5; 4. |
| 5961938 |
Method for recovering reusable elements from rare earth-iron alloy |
October 5, 1999 |
| A method for recovering rare earth elements and cobalt from a rare earth-iron alloy containing cobalt is disclosed, including the steps of:a preparing a slurry of the rare earth-iron alloy containing cobalt,adding a diluted nitric acid solution to the slurry with air being introduced into th |
| 5945370 |
Composite oxide having oxygen absorbing and desorbing capability and method for preparing the sa |
August 31, 1999 |
| A composite oxide having oxygen absorbing and desorbing capability containing 90 to 100 weight % total of cerium, zirconium, and hafnium based on a total amount of metals contained in the composite oxide, the total amount of cerium, zirconium, and hafnium consisting of 14.0 to 70.5 a |
| 5932084 |
Process for producing rare earth metals |
August 3, 1999 |
| A process for producing rare earth metals including the step of electrolyzing a starting material containing rare earth carbonates as main ingredients in a molten salt electrolytic bath containing rare earth fluorides, lithium fluoride, and barium fluoride at a bath temperature of 75 |
| 5840166 |
Rare earth metal-nickel hydrogen storage alloy, process for producing the same, and anode for ni |
November 24, 1998 |
| A rare earth metal-nickel hydrogen storage alloy having a composition represented by the formula (1) (R.sub.1-x L.sub.x) (Ni.sub.1-y M.sub.y).sub.z . . . (1) (R: La, Ce, Pr, Nd; L: Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Sc, Mg, Ca; M: Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Nb, Hf, Ta |
| 5817222 |
Rare earth metal-nickel hydrogen storage alloy, process for producing the same, and anode for ni |
October 6, 1998 |
| A rare earth metal-nickel hydrogen storage alloy having a composition represented by the formula (1)(wherein R stands for La, Ce, Pr, Nd, or mixtures thereof, M stands for Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, Si, V, Cr, Nb, Hf, Ta, W, B, C, or mixtures thereof, x satisfies the formula of 3.5. |
| 5728355 |
Method for recovering reusable rare earth compounds |
March 17, 1998 |
| A method for recovering reusable rare earth compounds such as rare earth oxides, rare earth fluorides, or rare earth metals from rare earth alloy scrap in an effective and safe manner. The method includes the steps of: (a) pulverizing rare earth alloy scrap at least by hydrogenating the |
| 5680896 |
Method for production of rare earth metal-nickel hydrogen occlusive alloy ingot |
October 28, 1997 |
| A method for producing rare earth metal-nickel hydrogen occlusive alloy ingot that contains 90 vol % or more of crystals having a crystal grain size of 1 to 50 .mu.m as measured along a short axis of the crystal and 1 to 100 .mu.m as measured along a long axis of the crystal. The method |
| 5674327 |
Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing |
October 7, 1997 |
| An alloy ingot for permanent magnet consists essentially of rare earth metal and iron and optionally boron. The two-component alloy ingot contains 90 vol % or more of crystals having a crystal grain size along a short axis of 0.1 to 100 .mu.m and that along a long axis of 0.1 to 100 |
| 5656100 |
Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing |
August 12, 1997 |
| An alloy ingot for permanent magnet consists essentially of rare earth metal and iron and optionally boron. The two-component alloy ingot contains 90 vol % or more of crystals having a crystal grain size along a short axis of 0.1 to 100 .mu.m and that along a long axis of 0.1 to 100 |
| 5630885 |
Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing |
May 20, 1997 |
| An alloy ingot for permanent magnet consists essentially of rare earth metal and iron and optionally boron. The two-component alloy ingot contains 90 vol % or more of crystals having a crystal grain size along a short axis of 0.1 to 100 .mu.m and that along a long axis of 0.1 to 100 |
| 5582785 |
Method for preparing composite oxide having oxygen absorbing and desorbing capability |
December 10, 1996 |
| A method for preparing a composite oxide having oxygen absorbing and desorbing capability involves the steps of: providing a starting composite oxide comprising cerium oxide, zirconium oxide, and hafnium oxide; subjecting the starting composite oxide to heating-deoxidation to give a |
| 5580536 |
Composite oxide having oxygen absorbing and desorbing capability and method for preparing same |
December 3, 1996 |
| A composite oxide having oxygen absorbing and desorbing capability contains 4.99-98.89% by weight of cerium oxide, 1-95% by weight of zirconium oxide, 0.01-20% by weight of hafnium oxide, and 0.1-10% by weight of an additional metal oxide selected from titanium oxide, tungsten oxide, |
| 5571492 |
Composite oxide having oxygen absorbing and desorbing capability |
November 5, 1996 |
| A composite oxide having oxygen absorbing and desorbing capability contains 4.99-98.99% by weight of cerium oxide, 1-95% by weight of zirconium oxide and 0.01-20% by weight of hafnium oxide. The composite oxide includes .PHI.' phase as a crystal phase and has oxygen absorbing and desorbi |
| 5478664 |
Method of recovering reusable metals from nickel-hydrogen rechargeable battery |
December 26, 1995 |
| A method of recovering a reusable metal from a nickel-hydrogen rechargeable battery characterized in that the method comprises crushing the nickel-hydrogen rechargeable battery to obtain a crushed material, separating alkali, organic substances and iron from the crushed material to o |
| 5478543 |
Compound oxide having oxygen absorbing and desorbing capability and method for preparing same |
December 26, 1995 |
| A compound oxide having oxygen absorbing and desorbing capability contains 4.99-98.99% by weight of cerium oxide, 1-95% by weight of zirconium oxide and 0.01-20% by weight of hafnium oxide. The compound oxide has an oxygen absorbing and desorbing capability of at least 100 .mu.mol/g at |
| 5470404 |
Rare earth metal-nickel hydrogen occlusive alloy ingot |
November 28, 1995 |
| A rare earth metal-nickel hydrogen occlusive alloy ingot contains 90 vol % or more of crystals having a crystal grain size of 1 to 50 .mu.m as measured along a short axis of the crystal and 1 to 100 .mu.m as measured along a long axis of the crystal. A method for producing the rare earth |
| 5383978 |
Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing |
January 24, 1995 |
| An alloy ingot for permanent magnet consists essentially of rare earth metal and iron and optionally boron. The two-component alloy ingot contains 90 vol % or more of crystals having a crystal grain size along a short axis of 0.1 to 100 .mu.m and that along a long axis of 0.1 to 100 |
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