| Patent Number |
Title Of Patent |
Date Issued |
| 6276287 |
Iron compound catalyst for inhibiting generation of dioxin and incineration process of municipal |
August 21, 2001 |
| An iron compound catalyst for inhibiting the generation of dioxin of the present invention, comprise iron oxide particles, iron oxide hydroxide particles or mixed particles thereof having a catalytic activity capable of converting not less than 15 % of carbon monoxide into carbon dioxide |
| 6271168 |
Catalyst for decomposing organohalogen compound |
August 7, 2001 |
| A composite catalyst for decomposing an organohalogen compound of the present invention, comprises composite particles comprising:iron compound particles having an average particle size of 0.01 to 2.0 .mu.m, a phosphorus content of not more than 0.02% by weight based on the weight of the |
| 6270925 |
Lithium battery |
August 7, 2001 |
| The present invention related to a lithium battery comprising a pair of electrodes disposed by means of a separator in the presence of a lithium ion conductive electrolyte, wherein at least one of said electrodes comprises a lithium iron oxide having a corrugated layer crystal structure |
| 6268024 |
Process for producing magnetic recording medium |
July 31, 2001 |
| A magnetic recording medium is prepared by forming on a plastic substrate, a nickel oxide underlayer having a plane (200) which is predominantly oriented in parallel with the surface of the plastic substrate, then forming on the nickel oxide underlayer at a substrate temperature of less |
| 6251555 |
Black magnetic composite particles for black magnetic toner and black magnetic toner using the s |
June 26, 2001 |
| Black magnetic composite particles for black magnetic toner according to the present invention comprise:magnetite particle as core particle;fine particles which are adhered or exist on at least a part of the surface of each magnetite particle, and comprise oxides, oxide hydroxides or oxi |
| 6248437 |
Magnetic recording medium containing non-magnetic hematite particles as an undercoat layer |
June 19, 2001 |
| The present invention relates to acicular hematite particles containing aluminum of 0.05 to 50% by weight, calculated as Al, having an average major axial diameter of not more than 0.3 .mu.m and a pH value of the particles of not less than 8, and containing soluble sodium salts of not |
| 6231661 |
Fine red iron oxide pigment, and paint or resin composition using the same |
May 15, 2001 |
| A fine red iron oxide pigment of the present invention comprises hematite particles and having a geometrical standard deviation of major axial diameter of not more than 1.5, a geometrical standard deviation of minor axial diameter of not more than 1.3 and an average major axial diameter |
| 6228924 |
Calcium-iron oxide composite particles and resin molded product containing the same |
May 8, 2001 |
| Calcium-iron oxide composite particles of the present invention have a BET specific surface area of 0.1 to 100 m.sup.2 /g and containing iron atom in an amount of 1 to 500 moles based on 100 moles of calcium atom,the iron atom of not less than 50% based on the total amount of iron atom c |
| 6221519 |
Magnetic recording medium and process for producing the same |
April 24, 2001 |
| A magnetic recording medium comprising:a plastic substrate;a nickel oxide underlayer formed on said substrate; anda cobalt-containing maghemite thin film formed on said nickel oxide underlayer, containing cobalt at a molar ratio of cobalt to iron of 0.01:1 to 0.1:1, and having either a spaci |
| 6207279 |
High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording me |
March 27, 2001 |
| High-density acicular hematite particles comprise acicular hematite particles and a coat comprising an oxide of tin or oxides of tin and antimony, formed on at least a part of surfaces of said acicular hematite particles; and have an average major axial diameter of not more than 0.3 |
| 6207253 |
Acicular hematite particles and magnetic recording medium |
March 27, 2001 |
| Acicular hematite particles of the present invention comprise an average major axis diameter of 0.004 to 0.295 .mu.m, a geometrical standard deviation of minor axis diameter of not more than 1.35 and a pH value of not less than 8, and containing not more than 300 ppm of soluble sodium |
| 6200376 |
Heat-resistant yellow pigment |
March 13, 2001 |
| Heat-resistant yellow pigment particles of the present invention comprise a composite metal oxide containing Fe, Ti and Li, and comprising a crystal phase having a pseudobrookite-type structure. Such the heat-resistant yellow pigment particles are free from contamination of harmful metal |
| 6197708 |
Dust-removing synthetic resin filter |
March 6, 2001 |
| A dust-removing synthetic resin filter of the present invention comprises a filter material which comprises: synthetic resin fibers; and iron oxide particles having a catalytic activity to chlorine or hydrogen chloride gas. Such a dust-removing synthetic resin filter is capable of so-cal |
| 6187462 |
Magnetic recording medium and process for producing the same |
February 13, 2001 |
| A magnetic recording medium of the present invention comprises: a plastic substrate; and a cobalt-containing maghemite thin film formed on said substrate, containing cobalt at a molar ratio of cobalt to iron of not more than 0.06:1, and having either a spacing of a plane (311) of not mor |
| 6183868 |
Spindle-shaped goethite particles, spindle-shaped hematite particles and spindle-shaped magnetic |
February 6, 2001 |
| The present invention relates to spindle-shaped goethite particles and spindle-shaped hematite particles, which have a narrow particle size distribution, include no dendrites, and have an appropriate particle shape and a large aspect ratio (major axial diameter/minor axial diameter); and |
| 6165608 |
Magnetic recording medium |
December 26, 2000 |
| A magnetic recording medium of the present invention comprises:a substrate; anda cobalt-containing maghemite thin film formed on said substrate, containing cobalt at a molar ratio of cobalt to iron of not more than 0.06:1, having either a spacing of a (311) plane of not more than 2.510 . |
| 6159594 |
Magnetic recording medium |
December 12, 2000 |
| A magnetic recording medium of the present invention comprises:a substrate;a nickel oxide underlayer formed on said substrate; anda cobalt-containing maghemite thin film formed on said nickel oxide underlayer, having either a spacing of a (311) plane of not more than 2.510 .ANG., a spacing o |
| 6159592 |
Magnetic recording medium |
December 12, 2000 |
| A magnetic recording medium comprising: a base film; a non-magnetic undercoat layer formed on said base film, comprising a binder resin and non-magnetic acicular particles containing iron as a main component, which particles comprise iron and zirconium of 0.05 to 30% by weight, calculate |
| 6153296 |
Acicular hematite particles and magnetic recording medium |
November 28, 2000 |
| Acicular hematite particles of the present invention contain zirconium of 0.05 to 30% by weight (calculated as Zr) based on the total weight of the particles, which is present within the particle, which have an average major axis diameter of not more than 0.3 .mu.m and a pH value of not |
| 6139618 |
Fine yellow composite iron oxide hydroxide pigment, and paint or resin composition using the sam |
October 31, 2000 |
| A fine yellow composite iron oxide hydroxide pigment of the present invention has an average major axial diameter of not less than 0.005 .mu.m and less than 0.1 .mu.m, which comprises:fine goethite particles as core particles, containing aluminum inside thereof in an amount of 0.05 to 50 |
| 6130017 |
Black non-magnetic composite particles for black toner and black toner using the same |
October 10, 2000 |
| Black non-magnetic composite particles for black toner according to the present invention, comprise:black hematite particles or black iron oxide hydroxide particles as core particles;fine particles which are adhered or exist on at least a part of the surface of each magnetite particle, a |
| 6124022 |
Acicular hematite particles for non-magnetic undercoat layer of magnetic recording medium, and m |
September 26, 2000 |
| Acicular hematite particles of the present invention comprise a geometrical standard deviation of major axis diameter of not more than 1.50, a geometrical standard deviation of minor axis diameter of not more than 1.35, a BET specific surface area of 35.9 to 150 m.sup.2 /g and an average |
| 6120898 |
Hematite particles and magnetic recording medium using hematite particles as non-magnetic partic |
September 19, 2000 |
| The present invention relates to acicular hematite particles containing aluminum of 0.05 to 50% by weight, calculated as Al, having an average major axial diameter of not more than 0.3 .mu.m and a pH value of the particles of not less than 8, and containing soluble sodium salts of not |
| 6117540 |
Non-magnetic black particles, non-magnetic black pigment therefrom and non-magnetic black filler |
September 12, 2000 |
| In accordance with the present invention, there are provided non-magnetic black particles composed primarily of Fe and having a hematite structure, which shows an excellent blackness, heat resistance, and dispersibility in a vehicle, and which particles contain manganese in an amount of |
| 6106987 |
Magnetic particles and magnetic carrier for electrophotographic developer |
August 22, 2000 |
| Magnetic particles of the present invention comprise:magnetic core particles;an intermediate layer formed on each surface of said magnetic core particles, comprising a silane-based coupling agent oligomer; anda resin composition layer formed on said intermediate layer, comprising a metal-bas |
| 6103437 |
Magnetic toner particles comprising magnetite particles containing silicon |
August 15, 2000 |
| Magnetite particles of the present invention have an average particle diameter of 0.05 to 0.50 .mu.m, each of the magnetite particles having a plurality of mountain-shaped protrusions with unsharpened crests on a surface of each magnetite particle, and the number of the mountain-shaped |
| 6103213 |
Process for producing lithium-cobalt oxide |
August 15, 2000 |
| A process for producing lithium-cobalt oxide, comprises: mixing cobalt oxide having a BET specific surface area of 30 to 200 m.sup.2 /g or an average particle size of not more than 0.1 .mu.m, with a lithium compound; and calcining the obtained mixture at a temperature of 500 to 850.degree. |
| 6099957 |
Plate-like ferrite particles with magnetoplumbite structure and magnetic card using the same |
August 8, 2000 |
| The present invention relates to plate-like ferrite particles with magnetoplumbite structure having a composition represented by the general formula of AO.multidot.n{(Fe.sub.1-(a+b) Bi.sub.a M.sub.b).sub.2 O.sub.3 } wherein A is Ba, Sr or Ba--Sr; M is Zn--Nb, Zn--Ta or Zn--Sn; n is from |
| 6087057 |
Magnetic particles and magnetic carrier for electrophotographic developer |
July 11, 2000 |
| Magnetic particles of the present invention comprise:magnetic core particles; anda rein composition coat formed on each surface of said magnetic core particles, comprising a metal-based curing agent, a silane-based coupling agent oligomer and a silicone resin,and having an average particle s |
| 6083474 |
Lithium-iron oxide particles and process for producing the same |
July 4, 2000 |
| There are disclosed lithium-iron oxide particles having an excellent properties such as electrochemical reversibility and suitable as a material for cathode active material for lithium ion batteries, which have a corrugated layer crystal structure and are represented by the general f |
| 6063490 |
Magnetic recording medium comprising non-magnetic acicular particles containing mainly iron and |
May 16, 2000 |
| A magnetic recording medium of the present invention comprises: a base film; a non-magnetic undercoat layer formed on said base film and comprising a binder resin and non-magnetic acicular particles containing iron as a main component, comprising iron and titanium of 0.05 to 50% by w |
| 6054201 |
Magnetic recording medium |
April 25, 2000 |
| The present invention relates to a magnetic recording medium comprising: a non-magnetic substrate; a non-magnetic undercoat layer formed on said non-magnetic substrate, said undercoat layer comprising non-magnetic acicular hematite particles containing 0.05 to 50% by weight of aluminum |
| 5968248 |
Heat-resistant inorganic pigment and process for producing the same |
October 19, 1999 |
| A heat-resistant inorganic pigment of the present invention comprises a composite metal oxide containing Ti and two divalent metals selected from the group consisting of Mg, Fe, Ni and Co, the content of said two divalent metals in said composite metal oxide being 0.95 to 1.05, in an |
| 5955220 |
Lithium iron oxide, method of its synthesis, and lithium battery using the same |
September 21, 1999 |
| A lithium iron oxide which can be used as an electrode active material for a lithium battery is disclosed. A lithium iron oxide represented by Li.sub.x FeO.sub.2, where 0<x<2, having a tunnel structure similar to .beta.-FeO(OH) can be synthesized by heating a suspension prepared by |
| 5830557 |
Non-magnetic undercoating layer for magnetic recording medium, magnetic recording medium and non |
November 3, 1998 |
| The disclosure describes a non-magnetic undercoating layer for a magnetic recording medium, coated on the surface of a non-magnetic substrate comprising:non-magnetic particles selected from the group consisting of particles (1) and (2):(1) coated acicular or spindle-shaped .alpha.-Fe.sub |
| 5686378 |
Lamella lepidocrocite particles and process for producing the same |
November 11, 1997 |
| The disclosure describes lamella lepidocrocite particles containing 10 to 30 atm % of titanium calculated as Ti/(Ti+Fe) and having a BET specific surface area of 150 to 350 m.sup.2 /g. |
| 5531922 |
Granulated particles for magnetic particles for magnetic recording, and process for producing th |
July 2, 1996 |
| Disclosed herein are granulated particles for magnetic particles for magnetic recording, comprising: acicular ferric hydroxide oxide particles or acicular iron oxide particles; and at least one selected from the group consisting of semisynthetic starch and semisynthetic cellulose and hav |
| 5512405 |
Iron oxide particles and process for producing the same |
April 30, 1996 |
| Disclosed herein is iron oxide particles comprising:100 parts by weight of material iron oxide particles having a specific surface area represented by the following formula (1):wherein .rho. represents a specific gravity of said iron oxide particles, d.sub.3 represents an area-average partic |
| 5496631 |
Perpendicular magnetic film, multilayered film for perpendicular magnetic film and process for p |
March 5, 1996 |
| Disclosed herein is a perpendicular magnetic film comprising a spinel thin film which is formed on a substrate, which contains Fe as the main ingredient and further contains Co and Ni, and which has a coercive force of less than 3000 Oe, the plane (400) thereof being predominantly orient |
| 5484545 |
Magnetic particles for magnetic recording medium and process for producing the same |
January 16, 1996 |
| Disclosed herein magnetic particles for magnetic recording which comprise acicular or plate-like magnetic particles and not less than 0.01 wt % (calculated as Al, SiO.sub.2 or Al and SiO.sub.2 and based on the acicular or plate-like magnetic particles) of an oxide or hydroxide containing |
| 5470660 |
Iron oxide particles and process for producing the same |
November 28, 1995 |
| Disclosed herein is iron oxide particles comprising:100 parts by weight of material iron oxide particles having a specific surface area represented by the following formula (1): wherein .rho. represents a specific gravity of said iron oxide particles, d.sub.3 represents an area-average parti |
| 5449565 |
Magnetic iron oxide particles, a process for producing the same and a magnetic recording medium |
September 12, 1995 |
| Disclosed herein are magnetic composite iron oxide particles comprising spinel-type Fe.sub.3 O.sub.4 particles as core particles and spinel-type CoFe.sub.2 O.sub.4 outerlayer of the composite iron oxide particles, a process for producing the same, and a magnetic recording medium comprisi |
| 5350793 |
Damping material |
September 27, 1994 |
| Disclosed herein is a damping material comprising:(a) a binder composed of 100 parts by weight of an ethylene-vinyl acetate copolymer containing 30 to 65 wt % of vinyl acetate, and 160 to 330 parts by weight of a petroleum resin containing an aromatic petroleum resin as the main ingredie |
| 5328793 |
Magnetic particles for magnetic toner |
July 12, 1994 |
| Disclosed herein are magnetic particles for a magnetic toner containing a low-molecular binder resin having a weight-average molecular weight of not more than 150,000, said magnetic particles comprising particulate magnetic particles containing iron as the main ingredient and having an o |
| 5269842 |
Iron oxide coloring agent for suppressing aging of resins |
December 14, 1993 |
| Disclosed herein is an iron oxide coloring agent capable of suppressing aging of resins comprising plate-like hematite particles coated with amorphous silicon dioxide or hydrated alumina containing silicon dioxide fine particles or hydrated alumina fine particles having an average pa |
| 5238483 |
Acicular magnetic iron based alloy particles for magnetic recording and method of producing the |
August 24, 1993 |
| Disclosed herein are acicular magnetic iron based alloy particles for magnetic recording, containing 1.5 to 10 mol % of B based on Fe (calculated as B) and 1.5 to 10 mol % of Co based on Fe (calculated as Co) in the vicinity of the surfaces of said particles and having a saturation m |
| 5232805 |
Magnetic particles containing iron as the main component and process for producing the same |
August 3, 1993 |
| Disclosed herein is magnetic particles containing iron as the main component which have an average particle diameter of 0.1 to 3.0 .mu.m and a liquid absorption of not more than 18 m.infin.. |
| 5229035 |
Bi-Pb-Sr-Ca-Cu-O system superconductors |
July 20, 1993 |
| A Bi-Pb-Sr-Ca-Cu-O system superconductor having a composition ofwherein n is a number from 0.76 to 1.05, m is a number from 0.01 to 0.20, x is a number from 0.85 to 1.35 and y is a number larger than 1.00 and not larger than 1.35; or n is a number larger than 1.06 and not larger than 1.1 |
| 5156922 |
Acicular magnetic iron based alloy particles for magnetic recording and method of producing the |
October 20, 1992 |
| Disclosed herein are acicular magnetic iron based alloy particles for magnetic recording, containing 1.5 to 10 mol % of B based on Fe (calculated as B) and 1.5 to 10 mol % of Co based on Fe (calculated as Co) in the vicinity of the surfaces of said particles and having a saturation m |
| 5137783 |
Acicular magnetic metal particles containing iron as main ingredient and process for producing t |
August 11, 1992 |
| Disclosed herein are acicular magnetic metal particles containing iron as the main ingredient the surfaces of which are coated with a polymer formed from at least one of silicone compounds represented by the following formula (I):wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R. |
