1
Koichiro Inomata, Tetsuhiko Mizoguchi, Naoyuki Sori, Hideki Yamamiya, Isao Sakai: Magnetic field generator useful for a magnetic resonance imaging instrument. Kabushiki Kaisha Toshiba, Foley & Lardner Schwartz Jeffery Schwaab Mack Blumenthal & Evans, May 2, 1989: US04827235 (36 worldwide citation)

A magnetic field generator comprises a permanent magnet, and pole pieces magnetically connected to the permanent magnet. The pole pieces are disposed to face each other to generate a magnetic field between them, and have a specific resistance of 20 .mu..OMEGA.-cm or more. The permanent magnet compri ...


2
Tetsuhiko Mizoguchi, Koichiro Inomata, Toru Higuchi, Isao Sakai: Permanent magnetic alloy and method of manufacturing the same. Kabushiki Kaisha Toshiba, Oblon Fisher Spivak McClelland & Maier, May 12, 1987: US04664724 (26 worldwide citation)

A permanent magnetic alloy essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 50 to 300 ppm by weight of oxygen and the balance of iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.


3
Tatsuoki Kono, Isao Sakai, Hideki Yoshida, Takamichi Inaba, Masaaki Yamamoto, Shiro Takeno: Hydrogen-absorbing alloy, electrode and secondary battery. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier & Neustadt P C, April 10, 2001: US06214492 (15 worldwide citation)

There is provided a hydrogen-absorbing alloy comprising at least one crystal phase consisting essentially of at least one unit cell which has a laminate structure comprising at least one A


4
Tatsuoki Kohno, Isao Sakai, Masaaki Yamamoto, Motoya Kanda, Hideki Yoshida, Fumiyuki Kawashima, Takao Sawa, Takamichi Inaba, Shusuke Inada, Hirotaka Hayashida, Hiroshi Kitayama: Hydrogen-absorbing alloy. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier & Neustadt P C, October 10, 2000: US06130006 (14 worldwide citation)

There is provided a hydrogen-absorbing alloy which contains an alloy ingot manufactured by means of a casting or sintering method or a pulverized product of the alloy ingot, and the alloy ingot being represented by the following general formula (1),


5
Hirotaka Hayashida, Masaaki Yamamoto, Hiroshi Kitayama, Shusuke Inada, Isao Sakai, Tatsuoki Kono, Hideki Yoshida, Takamichi Inaba, Motoya Kanda: Nickel-hydrogen secondary battery. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier & Neustadt P C, June 19, 2001: US06248475 (11 worldwide citation)

There is provided a nickel-hydrogen secondary battery which comprises a negative electrode comprising a hydrogen-absorbing alloy represented by the following general formula (A), a positive electrode, and an alkaline electrolyte, and which meets the conditions represented by the formulas (1) and (2) ...


6
Tomomi Funayama, Tadahiko Kobayashi, Isao Sakai, Masashi Sahashi: Magnetrostrictive materials and methods of making such materials. Kabushiki Kaisha Toshiba, Finnegan Henderson Farabow Garrett & Dunner, August 9, 1994: US05336337 (10 worldwide citation)

The magnetostriction alloys of the present invention are composed basically of Tb-Dy-iron which is partially substituted by at least one element selected from the group consisting of Y, La, Cs, Pr, Nd and Sm, and have been grown in the direction of face index or contain Mn and M element (at least on ...


7
Tetsuhiko Mizoguchi, Isao Sakai, Hiromi Niu, Koichiro Inomata, Akihiko Tsutai: Permanent magnet. Kabushiki Kaisha Toshiba, Cushman Darby & Cushman, June 19, 1990: US04935075 (10 worldwide citation)

A permanent magnet essentially consists of 10 to 40% by weight of R, 0.1 to 8% by weight of boron, 13% by weight or less of gallium and iron, where R is at least one component selected from the group consisting of yttrium and the rare-earth elements.


8
Tetsuhiko Mizoguchi, Isao Sakai, Hiromi Niu, Koichiro Inomata: Permanent magnet. Kabushiki Kaisha Toshiba, Cushman Darby & Cushman, August 22, 1989: US04859254 (9 worldwide citation)

A permanent magnet according to the present invention is characterized in that it is composed of an alloy comprising mainly of iron, and R (rare earth element including yttrium), cobalt, and boron, wherein the alloy is formed principally of ferromagnetic Fe-rich phase of tetragonal system and includ ...


9
Isao Sakai, Akihiko Tsutai, Masashi Sahashi, Tetsuhiko Mizoguchi, Koichiro Inomata: Resin-bonded rare earth-iron-boron magnet. Kabushiki Kaisha Toshiba, Cushman Darby & Cushman, December 4, 1990: US04975213 (9 worldwide citation)

In a method for producing a resin-bonded rare earth-iron-boron magnet, a powder is subjected to a heat-treatment below its melting point. The powder can be either: (1) a mixture of both: (a) a powder of a rare earth-iron-boron magnetic alloy comprising about 8 to about 30 atomic percent of R, which ...


10
Tetsuhiko Mizoguchi, Isao Sakai, Koichiro Inomata: Rare earth-iron-boron-based permanent magnet. Kabushiki Kaisha Toshiba, Oblon Spivak McClelland Maier & Neustadt, December 10, 1991: US05071493 (9 worldwide citation)

There is disclosed a permanent magnet comprising a sintered alloy composed of rare earth elements (R), boron and iron. This permanent magnet is substantially constituted by 2-phase systems, i.e. a ferromagnetic Fe-rich phase (Nd.sub.2 Fe.sub.14 B) and a nonmagnetic R-rich phase (Nd.sub.97 Fe.sub.3), ...