1
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada: Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet. Santoku Metal, Darby and Darby, January 24, 1995: US05383978 (45 worldwide citation)

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 .mu.m. The three ...


2
Akihito Kaneko, Nobuyuki Kitazume, Chikara Okada: Method of recovering reusable metals from nickel-hydrogen rechargeable battery. Santoku Metal, Darby & Darby, December 26, 1995: US05478664 (9 worldwide citation)

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 obtain a separate ...


3
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada, Nobuyuki Kitazume: Rare earth metal-nickel hydrogen occlusive alloy ingot. Santoku Metal, Darby & Darby, November 28, 1995: US05470404 (8 worldwide citation)

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 metal-nicke ...


4
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada: Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet. Santoku Metal, Darby & Darby, October 7, 1997: US05674327 (7 worldwide citation)

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 .mu.m. The three ...


5
Yuji Tanibuchi, Kazuhiko Yamamoto, Chikara Okada: Method of producing an age precipitation-containing rare earth metal-nickel alloy. Santoku Metal, Keil & Weinkauf, April 25, 2000: US06053995 (7 worldwide citation)

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)


6
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada: Permanent magnet containing rare earth metal, boron and iron. Santoku Metal, Keil & Weinkauf, November 25, 1997: US05690752 (4 worldwide citation)

A permanent magnet is obtained by pulverizing, molding and sintering a starting material containing an alloy ingot. The alloy ingot contains not less than 90% by volume of columnar crystals each having a columnar crystal grain size of 0.1 to 50 .mu.m along a short axis thereof and a columnar crystal ...


7
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada: Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet. Santoku Metal, Darby & Darby, August 12, 1997: US05656100 (3 worldwide citation)

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 .mu.m. The three ...


8
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada, Nobuyuki Kitazume: Method for production of rare earth metal-nickel hydrogen occlusive alloy ingot. Santoku Metal, Darby & Darby, October 28, 1997: US05680896 (2 worldwide citation)

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 for producin ...


9
Yuji Tanibuchi, Kazuhiko Yamamoto, Chikara Okada: Age precipitation-containing rare earth metal-nickel alloy. Santoku Metal, Keil & Weinkauf, November 16, 1999: US05985054 (1 worldwide citation)

An age precipitation-containing rare earth metal-nickel alloy of AB.sub.5 type having a composition represented by a formula (1)


10
Kazuhiko Yamamoto, Yuichi Miyake, Chikara Okada: Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet. Santoku Metal, Darby & Darby, May 20, 1997: US05630885

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 .mu.m. The three ...



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