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Class Information
Number: 420/83
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Rare earth metal containing
Description: Alloy or metallic composition which additionally contains one or more of scandium, yttrium or a lanthanide metal.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6451131 |
Terbium-dysprosium-iron magnetostrictive materials and devices using these materials |
Sep. 17, 2002 |
| 6391450 |
Spindle-shaped goethite particles, spindle-shaped hematite particles, spindle-shaped magnetic iron-based alloy particles, and process for producing the same |
May. 21, 2002 |
| 6383662 |
Light weight steel and its use for car parts and facade linings |
May. 7, 2002 |
| RE37666 |
Iron-based permanent magnets and their fabrication as well as iron-based permanent magnet alloy powders for permanent bonded magnets and iron-based bonded magnets |
Apr. 23, 2002 |
| 6334908 |
Sm-Fe-N alloy powder and process for the production thereof |
Jan. 1, 2002 |
| 6322637 |
Thin ribbon of rare earth-based permanent magnet alloy |
Nov. 27, 2001 |
| 6319335 |
Quenched thin ribbon of rare earth/iron/boron-based magnet alloy |
Nov. 20, 2001 |
| 6309479 |
Spindle-shaped goethite particles, spindle-shaped hematite particles and magnetic spindle-shaped metal particles containing iron as main component |
Oct. 30, 2001 |
| 6309441 |
Reduction-melting process to form rare earth-transition metal alloys and the alloys |
Oct. 30, 2001 |
| 6302972 |
Nanocomposite magnet material and method for producing nanocomposite magnet |
Oct. 16, 2001 |
| 6296720 |
Rare earth/iron/boron-based permanent magnet alloy composition |
Oct. 2, 2001 |
| 6280536 |
Fe based hard magnetic alloy having super-cooled liquid region |
Aug. 28, 2001 |
| 6210496 |
High-strength high-workability cold rolled steel sheet having excellent impact resistance |
Apr. 3, 2001 |
| 6183868 |
Spindle-shaped goethite particles, spindle-shaped hematite particles and spindle-shaped magnetic iron based alloy particles |
Feb. 6, 2001 |
| 6183571 |
Permanent magnetic material and permanent magnet |
Feb. 6, 2001 |
| 6177045 |
Composition and method for inoculating low sulphur grey iron |
Jan. 23, 2001 |
| 6149862 |
Iron-silicon alloy and alloy product, exhibiting improved resistance to hydrogen embrittlement and method of making the same |
Nov. 21, 2000 |
| 6117389 |
Titanium killed steel sheet and method |
Sep. 12, 2000 |
| 6048412 |
Spindle-shaped goethite particles, spindle-shaped hematite particles and spindle-shaped magnetic iron based alloy particles |
Apr. 11, 2000 |
| 6039920 |
Process for making rhenium-containing alloys |
Mar. 21, 2000 |
| 6019859 |
Iron-based permanent magnets and their fabrication as well as iron-based permanent magnet alloy powders for permanent bonded magnets and iron-based bonded magnets |
Feb. 1, 2000 |
| 6004407 |
Hard magnetic materials and method of producing the same |
Dec. 21, 1999 |
| 5985049 |
Magnetostrictive composites |
Nov. 16, 1999 |
| 5976273 |
Hard magnetic material |
Nov. 2, 1999 |
| 5968289 |
Permanent magnetic material and bond magnet |
Oct. 19, 1999 |
| 5963774 |
Method for producing cast alloy and magnet |
Oct. 5, 1999 |
| 5942053 |
Composition for permanent magnet |
Aug. 24, 1999 |
| 5932513 |
Container packed with powder of hydrogen absorbing alloy |
Aug. 3, 1999 |
| 5908513 |
Cast alloy used for production of rare earth magnet and method for producing cast alloy and magnet |
Jun. 1, 1999 |
| 5866066 |
Age hardenable alloy with a unique combination of very high strength and good toughness |
Feb. 2, 1999 |
| 5858123 |
Rare earth permanent magnet and method for producing the same |
Jan. 12, 1999 |
| 5803992 |
Carbide/nitride grain refined rare earth-iron-boron permanent magnet and method of making |
Sep. 8, 1998 |
| 5800728 |
Permanent magnetic material made of iron-rare earth metal alloy |
Sep. 1, 1998 |
| 5769969 |
Rare earth-iron-nitrogen magnet alloy |
Jun. 23, 1998 |
| 5750044 |
Magnet and bonded magnet |
May. 12, 1998 |
| 5743972 |
Heavy-wall structural steel and method |
Apr. 28, 1998 |
| 5730810 |
Non-oriented electromagnetic steel sheet with low iron loss after stress relief annealing, and core of motor or transformer |
Mar. 24, 1998 |
| 5690889 |
Production method for making rare earth compounds |
Nov. 25, 1997 |
| 5674327 |
Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet |
Oct. 7, 1997 |
| 5656100 |
Alloy ingot for permanent magnet, anisotropic powders for permanent magnet, method for producing same and permanent magnet |
Aug. 12, 1997 |
| 5645651 |
Magnetic materials and permanent magnets |
Jul. 8, 1997 |
| 5643491 |
Rare earth magnetic powder, its fabrication method, and resin bonded magnet |
Jul. 1, 1997 |
| 5634987 |
Magnetic materials and method of making them |
Jun. 3, 1997 |
| 5626690 |
Low boron amorphous alloy having excellent soft magnetic characteristics |
May. 6, 1997 |
| 5597425 |
Rare earth cast alloy permanent magnets and methods of preparation |
Jan. 28, 1997 |
| 5591276 |
Magnetic alloy with ultrafine crystal grains and method of producing same |
Jan. 7, 1997 |
| 5591535 |
Ferromagnetic metal powder |
Jan. 7, 1997 |
| 5589009 |
RE-Fe-B magnets and manufacturing method for the same |
Dec. 31, 1996 |
| 5580399 |
Magnetic recording medium |
Dec. 3, 1996 |
| 5578266 |
Alloys suitable for hydrogen storage, method of producing the same and electrode using the same |
Nov. 26, 1996 |
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