| Patent Number |
Title Of Patent |
Date Issued |
| 6638618 |
Black composite iron oxide pigment, and paint and resin composition using the same |
October 28, 2003 |
| A black composite iron oxide pigment of the present invention comprises composite iron oxide particles having an average particle size of 0.08 to 1.0 .mu.m, comprising: as core particles iron oxide particles, a coating formed on surface of said iron oxide particle, comprising at le |
| 6627313 |
Spindle-shaped magnetic metal particles containing iron as main component and processes for prod |
September 30, 2003 |
| Spindle-shaped magnetic metal particles containing iron as a main component of the present invention, have an average major axis diameter (L) of 0.05 to 0.15 .mu.m; a coercive force of 111.4 to 143.2 kA/m; a Co content of from 0.5 to less than 5 atm % based on whole Fe; a crystallite siz |
| 6623879 |
Soft-magnetic hexagonal ferrite composite particles, and green sheet using the same and soft-mag |
September 23, 2003 |
| Soft-magnetic hexagonal ferrite composite particles composed of 100 parts by weight of soft-magnetic hexagonal ferrite particles containing a Z-type ferrite, Y-type ferrite or W-type ferrite as a main phase, 0.3 to 10 parts by weight of barium carbonate particles, strontium carbonate par |
| 6623557 |
Colorant for ink-jet printing ink, ink-jet printing ink, aqueous pigment dispersion containing t |
September 23, 2003 |
| A colorant for ink-jet printing ink of the present invention, has an average particle diameter of 0.001 to 0.15 .mu.m, and comprises: extender pigments as core particles; a gluing agent coating layer formed on at least a part of surface of said core particle; and an organic pigment coat |
| 6616747 |
Process for producing granular hematite particles |
September 9, 2003 |
| The process for producing granular hematite particles of the present invention, comprises passing an oxygen-containing gas through an aqueous ferrous nitrate solution in the presence of iron materials and hematite seed crystals at a temperature of 80 to 90.degree. C., thereby obtaining |
| 6596255 |
Tin-containing granular magnetic oxide particles and process for producing the same |
July 22, 2003 |
| Tin-containing granular magnetic oxide particles comprising spinel-type crystal represented by the formula:wherein x is 0.14 to 0.48, and having a Fe.sup.2+ content of 17 to 22% by weight, a lattice constant of 8.41 to 8.49 .ANG., a magnetization value of 20 to 50 Am.sup.2 /kg when me |
| 6596071 |
Organic and inorganic composite pigments, and paint and resin composition using the same |
July 22, 2003 |
| Organic and inorganic composite pigments having an average particle diameter of 0.01 to 10.0 .mu.m composed of a white inorganic particle, an organosilane compound obtained from alkoxysilanes, or polysiloxanes coating on the white inorganic particle, and an organic pigment coat forme |
| 6576179 |
Injection molding process using a pair of reservoirs and an injection device |
June 10, 2003 |
| An injection-molding process including kneading functional particles with a binder resin in a kneader, temporarily storing the kneaded material supplied from the kneader in a reservoir device and feeding the kneaded material stored in the reservoir device to an injection device, the |
| 6569530 |
Magnetic recording medium and magnetic composite particles or magnetic recording medium |
May 27, 2003 |
| A magnetic recording medium comprises: a non-magnetic base film; and a magnetic recording layer comprising a binder resin and magnetic composite particles having an average particle diameter of 0.02 to 0.70 .mu.m, comprising magnetic particles as core particles, a coating formed |
| 6562532 |
Black magnetic toner and black magnetic composite particles therefor |
May 13, 2003 |
| Black magnetic toner comprising: a binder resin; and black magnetic composite particles having an average particle diameter of 0.06 to 1.0 .mu.m comprising: magnetic iron oxide particles, a coating layer formed on the surface of the magnetic iron oxide particles, comprising at le |
| 6551571 |
Cobalt-coated lithium manganese complex oxide and preparation process thereof |
April 22, 2003 |
| A cobalt-coated lithium manganese complex oxide is disclosed. This provides a particularly high discharge capacity which is useful for the improvement of cycle characteristics of a secondary battery as an active material of a positive electrode for a secondary battery with a nonaqueous e |
| 6544673 |
Spindle-shaped magnetic metal particles containing iron as main component and processes for prod |
April 8, 2003 |
| Spindle-shaped magnetic metal particles containing iron as a main component, having an average major axis diameter (L) of 0.05 to 0.15 .mu.m; a coercive force of 111.4 to 159.2 kA/m; a Co content of from 5 to less than 15 atm % based on whole Fe; a crystallite size of from 150 to les |
| 6544647 |
Non-magnetic composite particles, process for producing the same and magnetic recording medium u |
April 8, 2003 |
| Non-magnetic composite particles composed of non-magnetic core particles having an average particle size of 0.01 to 0.3 .mu.m, and inorganic fine particles having an average particle size of 0.001 to 0.07 .mu.m. The fine particles are present in an amount of 0.1 to 20% by weight based on |
| 6531211 |
Black plate-shaped ferrite composite particles with magnet oplumbite structure and magnetic reco |
March 11, 2003 |
| Black plate-shaped ferrite composite particles with magnetoplumbite structure, particle size of 0.01 to 0.2 .mu.m are surface coated with an organosilicon compound(s) and a carbon black coating is applied over the organosilicon coating layer. Optionally, a coating of silicon or aluminum |
| 6511733 |
Magnetic recording medium containing specific non-magnetic composite particles of coated hematit |
January 28, 2003 |
| A magnetic recording medium comprises: a non-magnetic base film; a magnetic recording layer formed on one surface of the non-magnetic base film, comprising a binder resin and magnetic particles; and a back coat layer formed on a surface opposite of the non-magnetic base film to the |
| 6509405 |
Mg-Al-based hydrotalcite-type particles, chlorine-containing resin composition and process for p |
January 21, 2003 |
| A chlorine-containing resin composition for covering an electric wire of the present invention, has a heat stability of not less than 240 minutes and a volume resistivity of 5.0.times.10.sup.13 to 1.0.times.10.sup.16 .OMEGA..multidot.cm when measured according to JIS K6723, and comprises |
| 6494968 |
Lamellar rare earth-iron-boron-based magnet alloy particles, process for producing the same and |
December 17, 2002 |
| Lamellar rare earth-iron-boron-based magnet alloy particles for a bonded magnet, having an intrinsic coercive force (iHc) of not less than 3.5 kOe, a residual magnetic flux density (Br) of not less than 9.5 kG, and a maximum energy product ((BH).sub.max) of not less than 13 MGOe. These |
| 6485877 |
Magnetic particles and magnetic carrier for electrophotographic developer |
November 26, 2002 |
| Magnetic particles having an average particle size of 10 to 200 .mu.m, comprising: magnetic core particles; and a coating layer formed on each surface of said magnetic core particles, comprising at least one metal alkoxide represented by the general formula (I):Such magnetic partic |
| 6476112 |
Calcium-iron oxide composite particles |
November 5, 2002 |
| Calcium-iron oxide composite particles of the present invention have a BET specific surface area of 1 to 100 m.sup.2 /g and containing iron atom in an amount of 1 to 50 moles based on 100 moles of calcium atom,the iron atom of not less than 50% based on the total amount of iron atom cont |
| 6475687 |
Magnetic composite particles for black magnetic toner and black magnetic toner using the same |
November 5, 2002 |
| Magnetic composite particles having an average particle diameter of 0.06 to 1.0 .mu.m and a coercive force value of less than 39.790 kA/m, comprising: magnetic core particles, a coating formed on surface of said magnetic core particles, comprising at least one organosilicon compound se |
| 6472048 |
Magnetic recording medium and process for producing the same |
October 29, 2002 |
| A magnetic recording medium having an excellent surface smoothness comprising a substrate and a maghemite thin film formed on the substrate. The maghemite thin film has a thickness of 10 to 50 nm and a surface roughness represented by an average surface roughness (Ra) of 0.1 to 0.7 n |
| 6465390 |
Porous composite particles and process for producing the same |
October 15, 2002 |
| Porous composite particles contain 80 to 98% by weight of a filling material and 2 to 20% by weight of carbon, and have an average pore diameter of not more than 5 nm when measured with respect to pores existing in both the surface and inside portions thereof, an average particle siz |
| 6459012 |
Method for treating organohalogen compound-containing soil or ash |
October 1, 2002 |
| A process for treating an organohalogen compound-containing soil or ash of the present invention, comprises: mixing the organohalogen compound-containing soil or ash with an organohalogen compound-decomposition catalyst composed of a composite catalyst comprising an amine compound and |
| 6458453 |
Magnetic recording medium |
October 1, 2002 |
| A magnetic recording medium composed of a non-magnetic base film and a magnetic recording layer containing a binder resin, magnetic particles, and as a filler black composite hematite particles having an average diameter of 0.08 to 1.0 .mu.m. The composite particles have cores of hem |
| 6458452 |
Titanium oxide particles, substrate for magnetic recording medium and magnetic recording medium |
October 1, 2002 |
| The present invention relates to titanium oxide particles having an average particle size of not more than 0.3 .mu.m, and a BET specific surface area of 15 to 200 m.sup.2 /g, containing a soluble sodium salt of not more than 230 ppm, calculated as Na, and a soluble sulfate of not more th |
| 6447618 |
Magnetic acicular alloy particles containing iron as a main component |
September 10, 2002 |
| Magnetic acicular alloy particles containing iron as a main component according to the present invention, have an average major axial diameter of 0.05 to 0.2 .mu.m, and pH values of water suspensions of said magnetic acicular alloy particles containing iron as a main component, which |
| 6440561 |
Iron oxide hydroxide composite particles, pigment, paint and resin composition |
August 27, 2002 |
| Iron oxide hydroxide composite particles having an average particle diameter of 0.005 to 1.0 .mu.m, comprises: iron oxide hydroxide particles as core particles, a coating formed on surface of said iron oxide hydroxide particles, comprising at least one organosilicon compound selected f |
| 6436868 |
Composite catalyst composition for inhibiting generation of dioxin |
August 20, 2002 |
| The present invention relates to a process for treating a dioxin-containing exhaust gas which can inhibit the generation of dioxin occurring either in the course of cooling of the exhaust gas between a downstream portion subsequent to a combustion chamber and a dust collector or due to a |
| 6436520 |
Magnetic display device |
August 20, 2002 |
| A magnetic display sheet of the present invention comprises: a magnet sheet having a magnetized surface, and a non-magnetized surface, which magnet sheet comprises: 400 to 1,900 parts by weight of at least one kind of magnetic particles selected from the group consisting of magnetoplu |
| 6432508 |
High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording me |
August 13, 2002 |
| 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 |
| 6428766 |
Manganese oxide, lithium manganese complex oxide and cobalt-coated lithium manganese complex oxi |
August 6, 2002 |
| A manganese oxide which has a calcium or/and magnesium content of 0.01 to 2.50 mol % based on the moles of manganese, a lithium manganese complex oxide using the manganese oxide, and a cobalt-coated lithium manganese complex oxide are disclosed. These provide a particularly high discharg |
| 6420030 |
Black iron-based composite particles, process for producing the same, paint and rubber or resin |
July 16, 2002 |
| Black iron-based composite particles of the present invention comprise: as a core particle black iron oxide particle or black iron oxide hydroxide particle having an average particle size of 0.08 to 1.0 .mu.m; a coating layer formed on the surface of the black iron oxide particle or bl |
| 6416864 |
Black magnetic composite particles for a black magnetic toner |
July 9, 2002 |
| Black magnetic toner comprising:a binder resin, andblack magnetic composite particles comprising:magnetic iron oxide particles having an average particle diameter of 0.055 to 0.95 .mu.m;a coating layer formed on the surface of said magnetic iron oxide particles, comprising at least one organ |
| 6413639 |
Mg-Al based hydrotalcite-type particles, chlorine-containing resin stabilizer and process for pr |
July 2, 2002 |
| The Mg--Al-based hydrotalcite-type particles according to the present invention have a plate surface diameter as large as from 0.1 to less than 1.0 .mu.m, an adequate thickness ranging from 0.02 to 0.08 .mu.m and a heat-resisting time of not less than 160 minutes when measured by a s |
| 6403927 |
Heat-processing apparatus and method of semiconductor process |
June 11, 2002 |
| A vertical heat-processing apparatus includes a surrounding member, which surrounds a process chamber and a heater. The surrounding member forms a heating space around the process chamber. The heating space has zones juxtaposed in a vertical direction. Temperature sensors are arranged to |
| 6398977 |
Strontium iron oxide particle powder and process for producing the same |
June 4, 2002 |
| The present invention provides a hollow shape strontium iron oxide particle powder. Not only is the particle powder high in safety and excellent in workability, but exhibits a large dielectric constant when formed into an artificial dielectric material utilizing electrical conduction by |
| 6398863 |
Spindle-shaped hematite particles and process for making spindle-shaped hematite particles |
June 4, 2002 |
| Spindle-shaped hematite particles obtained form the spindle-shaped goethite particles, can be prevented as highly as possible from causing destruction of particle shape when subjected to a heat-reduction step for producing magnetic spindle-shaped metal particles and magnetic spindle-shap |
| 6391450 |
Spindle-shaped goethite particles, spindle-shaped hematite particles, spindle-shaped magnetic ir |
May 21, 2002 |
| Spindle-shaped goethite particles are disclosed, which contain not less than 0.5 and less than 8 atom % of Co based on the total Fe and 5 to 10 atom % of Al based on the total Fe, and have an average major axis diameter of 0.18 to 0.30 .mu.m, a size distribution (standard deviation/m |
| 6383637 |
Black magnetic iron oxide particles for magnetic toner and process for producing the same |
May 7, 2002 |
| Black magnetic iron oxide particles of the present invention having an average particle diameter of 0.1 to 0.3 .mu.m, comprise:black spinel iron oxide particles as core particles; anda surface coat formed on the surface of each core particle, comprising fine spinel iron oxide particles,the c |
| 6379855 |
Black magnetic toner and black magnetic composite particles therefor |
April 30, 2002 |
| Black magnetic toner comprising:a binder resin; andblack magnetic composite particles comprising:magnetic iron oxide particles having an average particle diameter of 0.055 to 0.95 .mu.m,a coating layer formed on the surface of the magnetic iron oxide particles, comprising at least one organo |
| 6365282 |
Resin composition and laminated film |
April 2, 2002 |
| A resin composition comprising (a) 100 parts by weight of a thermoplastic resin containing nitrogen atom(s) in structural units thereof; and (b) 0.1 to 20 parts by weight of an iron compound catalyst comprising at least one iron oxide-based compound selected from the group consisting of |
| 6352776 |
Magnetic recording medium, non-magnetic acicular black iron-based composite particles and proces |
March 5, 2002 |
| A magnetic recording medium of the present invention comprises:a non-magnetic base film;a non-magnetic undercoat layer formed on the non-magnetic base film, comprising a binder resin and non-magnetic acicular black iron-based composite particles; anda magnetic coating film comprising a binde |
| 6337132 |
Layered rock salt-type oxide particle powder and process for producing the same |
January 8, 2002 |
| The present invention provides a lithium nickel-layered rock salt-type oxide particle powder, a lithium cobalt-layered rock salt-type oxide particle powder or a particle powder of a solid solution of these layered rock salt-type oxides, wherein the surface of the particle is rendered |
| 6312795 |
Magnetic sheet |
November 6, 2001 |
| A magnetic sheet of the present invention comprises:400 to 1,900 parts by weight of at least one kind of magnetic particles selected from the group consisting of magnetoplumbite-structure ferrite particles and rare-earth magnet particles, as a filler; and100 parts by weight of a binder compr |
| 6309479 |
Spindle-shaped goethite particles, spindle-shaped hematite particles and magnetic spindle-shaped |
October 30, 2001 |
| Spindle-shaped metal particles and a process for producing magnetic spindle-shaped metal particle containing iron as a main component, which contains cobalt of 8 to 45 atm % calculated as Co, aluminum of 5 to 20 atm %, calculated as Al, and a rare earth element of 1 to 15 atm %, calculat |
| 6304162 |
Anisotropic permanent magnet |
October 16, 2001 |
| An anisotropic permanent magnet with an improved surface magnetic field peak value is provided, which has at least one active surface and is oriented and magnetized simultaneously in such a manner that axes of easy magnetization of magnetic powder constituting the permanent magnet pass |
| 6300401 |
Material having a damping property and masterbatch pellets thereof |
October 9, 2001 |
| The disclosure described a material having a damping property, comprising 100 parts by weight of a binder resin composed of 85 to 99% by weight of at least one base resin selected from the group consisting of polypropylenes, polystyrenes, acrylonitrile-butadiene-styrene copolymers, p |
| 6299973 |
Acicular hematite particles having a low sodium content and their use in a magnetic recording me |
October 9, 2001 |
| The present invention provides particles for a non-magnetic undercoat layer of a magnetic recording medium, which comprises particular hematite particles having an average major axial diameter of not more than 0.3 .mu.m, a geometrical standard deviation in the major axial diameter of not |
| 6294242 |
Magnetic recording medium |
September 25, 2001 |
| A magnetic recording medium of the present invention comprises: a non-magnetic base film; and a magnetic recording layer comprising a binder resin and black magnetic acicular composite particles having an average particle diameter of 0.051 to 0.72 .mu.m, comprising: magnetic acicular |
| 6287668 |
Magnetic recording medium and substrate therefor |
September 11, 2001 |
| A magnetic recording medium of the present invention comprises:a non-magnetic base film;a non-magnetic undercoat layer formed on said non-magnetic base film, comprising a binder resin and non-magnetic acicular black iron-based composite particles; anda magnetic coating film comprising a bind |
