Celebrity Inventors
Actor Zeppo Marx patented a "Cardiac Pulse Rate Monitor" in 1969.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8092705 | Simple method for introducing magnetic particles into a polymer The present invention provides a simple method for introducing magnetic particles into a polymer for further preparing a magnetic polymer, the method using the capability of polymer to absorb Fe3+ and other divalent metal ions M2+, adding alkal... | 01/10/2012 |
| 8021567 | Oxide-type, magnetic material and it's production method, and sintered ferrite magnet and it's production method A sintered ferrite magnet having an M-type ferrite structure and comprising Ca, an R element which is at least one rare earth element indispensably including La, Ba, Fe and Co as indispensable elements, which is represented by Ca1-x-yRxBay... | 09/20/2011 |
| 7919007 | Ferrite magnetic material The present invention provides a ferrite magnetic material capable of attaining such magnetic properties that Br+(⅓)HcJ is 6200 or more even by sintering at a temperature of 1150° C. or lower. The ferrite magnetic material includes as a main phase thereof a ferri... | 04/05/2011 |
| 7906036 | Ferrite sintered magnet A sintered ferrite magnet having a basic composition represented by the general formula: A1−x−y+aCax+bRy+cFe2n−zCoz+dO19 (atomic ratio), wherein a, b, c and d represent the amounts of an A eleme... | 03/15/2011 |
| 7883637 | Composite sintered body of dielectric substance and magnetic substance, and LC composite electronic component A composite sintered body of dielectric substance and magnetic substance comprises a hexagonal Ba ferrite crystal, a perovskite type crystal containing at least one element selected from Ca, Sr, and Ba, and Ti, and Li element, and the relative magnetic permeability ... | 02/08/2011 |
| 7837893 | Oxide-type, magnetic material and its production method, and sintered ferrite magnet and its production method A sintered ferrite magnet having an M-type ferrite structure and comprising Ca, an R element which is at least one rare earth element indispensably including La, Ba, Fe and Co as indispensable elements, which is represented by Ca1-x-yRxBay... | 11/23/2010 |
| 7713433 | Ferrite magnetic material and ferrite sintered magnet W-type ferrite has improved magnetic properties, in particular, coercive force. A high coercive force (HcJ) and a high residual magnetic flux density (Br) can be simultaneously attained by a ferrite magnetic material comprising an oxide having a composition wherein ... | 05/11/2010 |
| 7651626 | Hexagonal ferrite, antenna using the same and communication apparatus There is provided Y-type hexagonal ferrite having a high density of sintered body and a low level of loss and an antenna. The hexagonal ferrite having Y-type ferrite as the main phase is characterized in that main components of the hexagonal ferrite are M1O (... | 01/26/2010 |
| 7481947 | Ferrite magnetic material and ferrite sintered magnet A ferrite magnetic material comprising a main phase of W-type is provided which has magnetic properties improved through the optimization of additives. The ferrite magnetic material comprises a main constituent having a compound represented by composition formula AF... | 01/27/2009 |
| 7465409 | Hard magnetic core particles and a method of making same Hard magnetic core particles for use in the development of electrostatic latent images are produced by combining ferric oxide, a strontium oxide precursor, an oxygenated boron compound and a binder to form a mixture, wherein the strontium oxide precursor is preferab... | 12/16/2008 |
| 7425280 | Ferrite magnetic material and process for producing the same The present invention provides a ferrite magnet material comprising, as a main phase, a ferrite having a hexagonal structure, the main phase containing A, La, R, Fe and Co, wherein A is at least one element selected from Sr, Ba and Pb, R is Pr and/or Nd, and the pro... | 09/16/2008 |
| 7410625 | Process of making metal containing iron oxide and iron sulfide based nanoparticle materials A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200-360° C. is described. The size of the particles can be controlled either by changing ... | 08/12/2008 |
| 7390425 | Ferrite sintered body and method of manufacturing same The ferrite sintered body of hexagonal Z-type ferrite contains 17 mol % to 21 mol % of BaO, 6 mol % to 13 mol % of CoO, the remainder being Fe2O3 as its main components and also contains 0.05% to 1.0% by mass of Li, based on the main components... | 06/24/2008 |
| 7384571 | Ferrite magnet powder bond magnet A ferrite magnetic powder for bond magnet that experiences only small decrease in coercivity when molded into a bond magnet is provided, which is a ferrite magnetic powder that includes an alkaline-earth metal constituent and exhibits a decrease in coercivity of not... | 06/10/2008 |
| 7371271 | Composite soft magnetic sintered material having high density and high magnetic permeability and method for preparation thereof An object of the present invention is to provide a composite soft magnetic sintered material that has high density, high mechanical strength and high relative magnetic permeability at high frequencies and, in order to achieve this object, the present invention provi... | 05/13/2008 |
| 7354995 | Magnetic substance-biosubstance complex structure, peptide fragment capable of linking to magnetic substance and gene therefor, and process for producing the complex structure A magnetic substance-biosubstance complex structure comprises a magnetic substance-containing carrier and a bio-substance immobilized on the carrier, the biosubstance being immobilized through a spacer comprising an amino acid sequence on a surface of the carrier. | 04/08/2008 |
| 7332101 | Permanently linked, rigid, magnetic chains One aspect of the present invention relates to a permanently linked, rigid, magnetic chain of particles prepared by sol-gel methods. A second aspect of the present invention relates to a method of preparing a permanently linked, rigid, magnetic chain of particles co... | 02/19/2008 |
| 7289010 | Mn-Zn based ferrite member There is provided a Mn—Zn based ferrite member excellent in mass productivity, high in withstand voltage, low in loss and excellent in direct current superposition property. The Mn—Zn based ferrite member is provided with a surface layer portion having the prope... | 10/30/2007 |
| 7255807 | Bond magnet and ferrite magnetic powder for bond magnet A ferrite magnetic powder for bond magnet that experiences only small decrease in coercivity when molded into a bond magnet is provided, which is a ferrite magnetic powder that includes an alkaline-earth metal constituent and exhibits a decrease in coercivity of not... | 08/14/2007 |
| 7242133 | Method for production of a mechanical resonator with a planar monolithic vibrating structure machined in a crystalline material and resonator produced thus The invention relates to the production of a mechanical resonator with a planar monolithic vibrating structure machine in a crystalline material. Where the material is trigonal (1), trigonal (2) or hexagonal in structure, said material is cut in the [001] plane or, ... | 07/10/2007 |
| 7235224 | Process for preparing fine metal oxide particles Disclosed is a process for preparing fine metal oxide particles, comprising the following steps of reacting a reactant mixture comprising i) water, ii) at least one water-soluble metal nitrate and iii) ammonia or ammonium salt at 250–700° C. under 180–550 bar f... | 06/26/2007 |
| 7169319 | Anisotropic, sintered ferrite magnet and method for producing the same A ferrite magnet having a basic composition represented by the following general formula: (A1−xRx)O.n[(Fe1−yMy)2O3] by atomic ratio, wherein A is Sr and/or Ba, R is at least one of rare earth elem... | 01/30/2007 |
| 7163667 | Production process for oxide magnetic material and oxide magnetic material A production process for an oxide magnetic material comprising the steps of blending raw material powder so as to take the composition of a hexagonal ferrite including: at least one kind of an element A selected from the group consisting of Ba, Sr and Ca; Co and Cu;... | 01/16/2007 |
| 7141119 | Pressure-controlling dispersion delivery system A pressure-controlling dispersion delivery system for delivering a sheared dispersion comprising a plurality of ingredients to a coating device selected from a direct feed delivery system and a coating device flow-through delivery system, wherein a coating formed fr... | 11/28/2006 |
| 7108799 | Electromagnetic wave absorber formed of Mn-Zn ferrite An electromagnetic wave absorber is formed of an Mn—Zn ferrite including: a spinel primary phase which contains 40.0 to 49.9 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, and the remainder consisting of MnO; and a secondary phase which contains CaO as ... | 09/19/2006 |
| 7101489 | Composite magnetic material and a method for producing the same A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic particles being mixed with each other. A frequency characteristic of the... | 09/05/2006 |
| 7101488 | Electromagnetic wave absorber formed of Mn-Zn ferrite An electromagnetic wave absorber is formed of an Mn—Zn ferrite including: a spinel primary phase which contains 40.0 to 49.9 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 0.1 to 4.0 mol % TiO2 and/or SnO2, and the remainder consis... | 09/05/2006 |
| 7045093 | Method for manufacturing sintered magnet A method for manufacturing a sintered magnet includes the steps of producing a green compact of powder for the sintered magnet, machining the green compact with a wire-saw, and sintering the green compact. ... | 05/16/2006 |
| 7025946 | Method for producing soft magnetic hexagonal ferrite sintered material and soft magnetic hexagonal ferrite sintered material A soft hexagonal ferrite sintered material includes crystal particles of M-type hexagonal ferrite corresponding to a general chemical formula MFe12O19 wherein M is at least one element selected from the group consisting of Ba, Sr and Pb. Crysta... | 04/11/2006 |
| 7011764 | Method for producing a magnetic device A magnetic device and method for making it involve a magnetic device specifically constructed of grains in a matrix. The matrix may be cement or plaster. The grains have an average diameter that is greater than their magnetic domains. The device may be applied to sh... | 03/14/2006 |
| 7008965 | Aqueous colloidal dispersion of a compound of cerium and at least one other element chosen from among the rare earths, transition metals, aluminum, gallium and zirconium preparation process and use The invention relates to an aqueous colloidal dispersion of a compound of cerium and at least one other element M chosen from among the rare earths other than cerium; titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, aluminium, gallium and... | 03/07/2006 |
| 6994797 | Permanent magnet and method for preparation thereof A ferrite magnet obtained by adding at least one element selected from the group consisting of Co, Ni, Mn and Zn to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is se... | 02/07/2006 |
| 6984338 | Mn-Zn ferrite containing less than 50 mol % FeO An Mn—Zn ferrite includes base components of 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 0.8 mol % or less Mn2O3, and the remainder consisting of MnO, and contains 0.20 (0.20 excluded) to 1.00 mass % CaO as additive... | 01/10/2006 |
| 6984337 | Mn—Zn ferrite containing less than 50 mol% Fe2O3 An Mn—Zn ferrite includes base components of 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, at least one of 0.1 to 4.0 mol % TiO2 and SnO2, 0.5 mol % or less Mn2O3, and the remainder consisting of... | 01/10/2006 |
| 6955768 | Permanent magnet and method for preparation thereof A ferrite magnet obtained by adding a ferrite having a spinel-type structure to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is selected from the group consisting of ... | 10/18/2005 |
| 6933799 | Method of controlling intermodulation distortion of non-reciprocal device A non-reciprocal device includes at least one ferrimagnetic member (21 or 22). By controlling the FMR linewidth ΔH of the ferrimagnetic members (21 and 22), intermodulation distortion is controlled. ... | 08/23/2005 |
| 6929758 | Permanent magnet and method for preparation thereof A ferrite magnet obtained by adding either an oxide of Mn or oxides of Mn and Co to a ferrite having a hexagonal M-type magnetoplumbite structure, in which a portion of Sr, Ba, Pb or Ca is replaced with at least one element that is selected from the group consisting... | 08/16/2005 |
| 6908568 | Preparation of oxide magnetic material and oxide magnetic material An oxide magnetic material is prepared by wet molding in a magnetic field a slurry containing a particulate oxide magnetic material, water and a polyhydric alcohol having the formula: Cn(OH)nHn+2 wherein n is from 4 to 100 as a dispe... | 06/21/2005 |
| 6905629 | Mn-Zn ferrite, transformer magnetic core and transformer An Mn—Zn ferrite wherein 0 to 5000 ppm of a Co oxide in a Co3O4 conversion is contained in a basic component constituted by Fe2O3: 51.5 to 57.0 mol % and ZnO: 0 to 15 mol % (note that 0 is not included) wherein the rest ... | 06/14/2005 |
| 6902685 | Oxide magnetic material A ferrite magnet powder and a ferrite magnet exhibiting improved magnetic properties are provided at a reduced manufacturing cost. An application product and manufacturing methods thereof are also provided. An oxide magnetic material includes, as a main phase, a fer... | 06/07/2005 |
