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Class Information
Number: 252/62.56
Name: Compositions > Magnetic > Iron-oxygen compound containing
Description: Compositions which contain compounds of iron and oxygen.

Sub-classes under this class:

Class Number Class Name Patents
252/62.58 With boron, aluminum, thallium, or indium 165
252/62.6 With group i metal 160
252/62.62 With group ii metal or lead 333
252/62.57 With scandium, yttrium, gallium, rare earth, or actinide 218
252/62.59 With titanium, zirconium, silicon, hafnium, germanium, or tin 321

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8617414 Powders used for producing Ni-Cu-Zn system ferrite ceramics sintered body and method for manufacturing the same Dec. 31, 2013
8617700 Thermoplastic composition having improved X-ray contrast, method of making, and articles prepared therefrom Dec. 31, 2013
8574450 Method for preparing iron oxides Nov. 5, 2013
8545713 Black magnetic iron oxide particles Oct. 1, 2013
8506837 Field-responsive fluids Aug. 13, 2013
8481178 Iron powder coated with Mg-containing oxide film Jul. 9, 2013
8444872 Magnetic iron oxide particle, magnetic material, and radio wave absorber May. 21, 2013
8435496 Nanoparticle clusters and methods for forming same May. 7, 2013
8419966 Method of manufacturing hexagonal ferrite magnetic powder, magnetic recording medium and method of manufacturing the same Apr. 16, 2013
8416051 Magnetic material and coil component using the same Apr. 9, 2013
8404338 X-ray and/or metal detectable articles and method of making the same Mar. 26, 2013
8398880 Method of modifying surface of powder, coating material, method of manufacturing magnetic recording medium, and magnetic recording medium manufactured by the same Mar. 19, 2013
8282852 Magnetorheological fluid and method of making the same Oct. 9, 2012
8277690 Conducting copolymer ferromagnetic composite and a process for the preparation thereof Oct. 2, 2012
8236192 Ferromagnetic nanoparticles with high magnetocrystalline anisotropy for MICR ink applications Aug. 7, 2012
8226845 Iron powder phosphonate coating Jul. 24, 2012
8211224 Multi-colored lustrous pearlescent pigments and process for making Jul. 3, 2012
8206545 Magnetically curable composition and magnetic cure process Jun. 26, 2012
8192630 Magnetic in-line purification of fluid Jun. 5, 2012
8153097 Method for manufacturing ferrite powder, ferrite powder, and magnetic recording medium Apr. 10, 2012
8133405 Spinel-type ferrimagnetic particles, process for producing the same, and magnetic recording medium using the same Mar. 13, 2012
8123973 Method of manufacturing magnetic material Feb. 28, 2012
8105493 Aggregation and dispersion methods of magnetic particles, separation and detection methods using the same and detection kit Jan. 31, 2012
8097185 Magnetic activated carbon particles for adsorption of solutes from solution Jan. 17, 2012
8092705 Simple method for introducing magnetic particles into a polymer Jan. 10, 2012
8072365 Magnetic crystal for electromagnetic wave absorbing material and electromagnetic wave absorber Dec. 6, 2011
8070974 Soft-magnetic material and process for producing articles composed of this soft-magnetic material Dec. 6, 2011
8062542 Light-polarizing solid coating composition, optical lens comprising same, and method for making same Nov. 22, 2011
7998361 Soft magnetic material and powder magnetic core Aug. 16, 2011
7947191 Composite material composed of nanoparticles of transition metal and magnetic ferric oxide, a methode of preparing the same, and uses of the same May. 24, 2011
7922917 Porous ferro- or ferrimagnetic glass particles for isolating molecules Apr. 12, 2011
7906036 Ferrite sintered magnet Mar. 15, 2011
7879269 Ferrite powder optimized for fabrication of ferrite features and related methods Feb. 1, 2011
7837892 Rubber compound containing nanoscale, magnetic fillers Nov. 23, 2010
7834139 Magnetic nanotubes Nov. 16, 2010
7771531 Manufacturing method and usage of crystallized metal oxide thin film Aug. 10, 2010
7722843 System and method for sequestration and separation of mercury in combustion exhaust gas aqueous scrubber systems May. 25, 2010
7708902 Magnetic material, and memory and sensor using same May. 4, 2010
7691285 Magnetic nanoparticles having improved magnetic properties Apr. 6, 2010
7686894 Magnetically soft powder composite material, method for manufacturing same, and its use Mar. 30, 2010
7598316 Preparation of polymer particles Oct. 6, 2009
7476330 Low temperature susceptibility compensation Jan. 13, 2009
7442362 Method for preparing iron oxides Oct. 28, 2008
7425376 Ferrite substrate for thin-film inductors, thin-film common mode filter using the substrate, and thin-film common mode filter array using the substrate Sep. 16, 2008
7410625 Process of making metal containing iron oxide and iron sulfide based nanoparticle materials Aug. 12, 2008
7387847 Ferrite substrate, thin-film common mode filter using the substrate, thin-film common mode filter array using the substrate and manufacturing method of the substrate Jun. 17, 2008
7378035 Ionic material May. 27, 2008
7344587 Magnetic ink tissue markings Mar. 18, 2008
7332101 Permanently linked, rigid, magnetic chains Feb. 19, 2008
7326360 Cobalt ferrite based magnetostrictive materials for magnetic stress sensor and actuator applications Feb. 5, 2008

1 2 3 4 5 6 7 8 9 10 11 12

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