Abstract: The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 &OHgr;·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.

Abstract: The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 &OHgr;·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.

Abstract: An oxide ceramic material is provided to contain aluminum oxide as a principal component, and at least one selected from A and B shown below as an auxiliary component:

Abstract: A magnetic device includes a sheet-type coil including a planar conductive coil and an insulating substance; and a sheet-type first magnetic member disposed on at least one of upper and lower surfaces of the sheet-type coil, where a magnetic permeability of the insulating substance is smaller than a magnetic permeability of the first magnetic member. The magnetic device preferably includes a second magnetic member provided at a predetermined area of the sheet-type coil, the second magnetic member being made of a resin containing a magnetic powder and having a permeability larger than the insulating substance and smaller than the first magnetic member. The predetermined area is at least one position selected from a center portion and a peripheral portion of the sheet-type coil where a conductor constituting the planar conductive coil is not present. Further, a power supply module of the present invention includes this magnetic device according to the present invention.

Abstract: On the occasion of the aligning process to transfer a predetermined pattern to a semiconductor wafer by irradiating a photoresist on the semiconductor wafer with an aligning laser beam of the modified-lighting via a photomask MK, the photomask MK allocating, to provide periodicity, the main apertures to transfer the predetermined pattern as the apertures formed by removing a part of the half-tone film on the mask substrate and the auxiliary apertures not resolved on the semiconductor wafer as the apertures formed by removing a part of the half-tone film is used to improve the resolution of the pattern.

Abstract: The average major-axis length (L) of a ferromagnetic alloy powder primarily contained together with a binder in a magnetic layer provided on at least one surface of a magnetic support is less than 0.10 &mgr;m, and the ferromagnetic alloy powder contains Co at a content of 15 to 28 at % relative to Fe, and furthermore, contains Y at a content of 22 &mgr;mol/m2 or more with respect to a specific surface area (Sc) calculated from the above-mentioned average major-axis length (L) and the crystallite diameter (d). A coating-type high-recording-density magnetic recording medium has excellent surface properties, an excellent electromagnetic transducing characteristic especially in short wavelength regions and high reliability.

Abstract: A green sheet including a binder containing an acrylic resin having no polar group and a ceramics material in powder is prepared, and connection via are formed in the green sheet. Further, a conductor layer having virtually no voids is placed on the green sheet and a mask is also placed on the conductor layer. Then, the conductor layer is patterned by wet-etching so that wiring is formed thereon. A plurality of the green sheets thus formed are laminated, and a binding sheet, which contains an inorganic composition that has virtually no sintering shrinkage at the firing temperature of the multi-layered body as a main component, is formed on either both surfaces or one surface of the laminated body, and this is then fired, and thereafter, the binding sheet is removed.

Abstract: On the occasion of the aligning process to transfer a predetermined pattern to a semiconductor wafer by irradiating a photoresist on the semiconductor wafer with an aligning laser beam of the modified lighting via a photomask MK, the photomask MK allocating, to provide periodicity, the main apertures to transfer the predetermined pattern as the apertures formed by removing a part of the half-tone film on the mask substrate and the auxiliary apertures not resolved on the semiconductor wafer as the apertures formed by removing a part of the half-tone film is used to improve the resolution of the pattern.

Abstract: An air filter medium is provided with a porous film made from a polytetafluoroethylene, and a non-woven fabric laminated on at least one side of the porous film. The non-woven fabric has an apparent density satisfying the following equation: apparent density (g/cm3)<1.5×(basis weight (g/m2)/1000)+0.11. The filter medium is produced by a process that includes a first step of producing a porous film formed from a polytetrafluoroethylene, and a second step of laminating a non-woven fabric on at least one side of the porous film on heating roll that has undergone a non-adhesive treatment. The filter medium is used to manufacture an air filter pack, while the air filter pack is used to manufacture an air filter unit.

Abstract: A wet-responsive fiber having a monofilament formed from a resin composition comprising a resin having an anionic group, a resin having a cationic group, and, optionally, a resin as a base. The fiber can be produced by melting and kneading a resin composition comprising a resin having an anionic group, a resin having a cationic group and, optionally, a base resin, and then conducting spinning. The nonwoven fabric is comprised of fibers of a resin composition comprising a cationic resin, an anionic resin and, optionally, a regenerated cellulose which can be used as a body fluid absorber or a wet tissue. The nonwoven fabric has water decomposability and is disposable.

Abstract: A non-reciprocal circuit element according to the present invention comprises at least three center electrodes which are superposed and arranged so as to intersect with each other. A capacitor connected to one end of the center electrodes in parallel is provided. Earth electrodes connected to the other ends of the center electrodes and arranged between center electrodes at least one by one are provided. The electrical isolation layers arranged between the center electrodes and the earth electrodes, respectively are provided. A ferrite member arranged adjacent to the center electrodes is provided. A magnet for applying a direct current magnetic field to the ferrite member is provided. A yoke material combined with the ferrite member and the magnet to constitute a magnetic circuit is provided.

Abstract: The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 &OHgr;·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.

Abstract: A green sheet including a binder containing an acrylic resin having no polar group and a ceramics material in powder is prepared, and connection via are formed in the green sheet. Further, a conductor layer having virtually no voids is placed on the green sheet and a mask is also placed on the conductor layer. Then, the conductor layer is patterned by wet-etching so that wiring is formed thereon. A plurality of the green sheets thus formed are laminated, and a binding sheet, which contains an inorganic composition that has virtually no sintering shrinkage at the firing temperature of the multi-layered body as a main component, is formed on either both surfaces or one surface of the laminated body, and this is then fired, and thereafter, the binding sheet is removed.

Abstract: A magnetic device includes a sheet-type coil including a planar conductive coil and an insulating substance; and a sheet-type first magnetic member disposed on at least one of upper and lower surfaces of the sheet-type coil, where a magnetic permeability of the insulating substance is smaller than a magnetic permeability of the first magnetic member. The magnetic device preferably includes a second magnetic member provided at a predetermined area of the sheet-type coil, the second magnetic member being made of a resin containing a magnetic powder and having a permeability larger than the insulating substance and smaller than the first magnetic member. The predetermined area is at least one position selected from a center portion and a peripheral portion of the sheet-type coil where a conductor constituting the planar conductive coil is not present. Further, a power supply module of the present invention includes this magnetic device according to the present invention.

Abstract: A green sheet including a binder containing an acrylic resin having no polar group and a ceramics material in powder is prepared, and connection via are formed in the green sheet. Further, a conductor layer having virtually no voids is placed on the green sheet and a mask is also placed on the conductor layer. Then, the conductor layer is patterned by wet-etching so that wiring is formed thereon. A plurality of the green sheets thus formed are laminated, and a binding sheet, which contains an inorganic composition that has virtually no sintering shrinkage at the firing temperature of the multi-layered body as a main component, is formed on either both surfaces or one surface of the laminated body, and this is then fired, and thereafter, the binding sheet is removed.

Abstract: The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104 &OHgr;·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.

Abstract: This invention provides a method of producing a ceramic laminate body capable of suppressing the occurrence of de-lamination and cracks, and providing high reliability. This method comprises a heat-bonding step of covering a full periphery of side surfaces of ceramic layers 11 positioned in an orthogonal direction to a laminating direction with a side surface jig while the ceramic layers are laminated, heating the ceramic layers and pressing the ceramic layers from both end faces positioned in the laminating direction by end face jigs to form a heat-bonded ceramic laminate body; and a side surface grinding step of grinding or cutting the full periphery of the side surfaces inclusive of damage portions 9 occurring in the ceramic laminate body in the heat-bonding step.

Abstract: The present invention provides a composite magnetic body containing metallic magnetic powder and thermosetting resin and having a packing ratio of the metallic magnetic powder of 65 vol % to 90 vol % and an electrical resistivity of at least 104&OHgr;·cm. When a coil is embedded in this composite magnetic body, a miniature magnetic element can be obtained that has a high inductance value and is excellent in DC bias characteristics.

Abstract: A packaged air filter part and a method of packaging the air filter part are provided to suppress the absorption of organic substances by the air filter part. The air filter part is encased within a packaging material and has a filter medium capable of cleaning air in at least a part thereof. The dibutyl phthalate content per 1 g of the filter medium is 1.0 &mgr;g or lower when the filter medium is taken out of the encasing of the packaging material. The air filter package unit includes the air filter part, and a packaging material arranged so that the filter medium is shielded from outside air. The method of packaging an air filter includes a step of producing air filter part, a step of packaging the air filter part with a first material, and a step of further packaging the packaged air filter part with a second material.

Abstract: A magnetic element including: a composite magnetic member A containing a metallic magnetic powder in an amount of 50-70 vol. % and a thermosetting resin in an amount of 50-30 vol. %; a magnetic member B that is at least one selected from a ferrite sintered body and a pressed-powder magnetic body of a metallic magnetic powder; and a coil. The magnetic element is characterized in that a magnetic path determined by an arrangement of the coil passes the magnetic member A and the magnetic member B in series and the coil is embedded in the magnetic member A. The present invention also provides a method for manufacturing the magnetic element.