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Atsushi Hitomi, Tokyo JP

Atsushi Hitomi, Tokyo JP

Patent application numberDescriptionPublished
20100020454ESD protection device - An ESD protection device that has low capacitance, excellent discharge characteristics, and improved heat resistance and weather resistance is provided. A functional layer 01-28-2010
20100137123SINTERED BODY AND PRODUCTION METHOD THEREOF - An object is to provide a sintered body having a sufficiently higher polishing rate than a conventional AlTiC sintered body and providing a sufficiently smooth air bearing surface. The sintered body according to the present invention consists of Al06-03-2010
20100157496ESD protection device and composite electronic component of the same - The present invention provides an ESD protection device and the like having improved durability against repeated use. An ESD protection device includes a base having an insulating surface, electrodes disposed on the insulating surface and facing but spaced apart from each other, and a functional layer 4-disposed on at least between the electrodes. The electrodes have a multistage structure in which a gap between the electrodes is narrower toward the base.06-24-2010
20100157501ESD protection device and composite electronic component of the same - An object of the present invention is to provide an ESD protection device and the like which offer a reduced discharge starting voltage and improved durability against repeated use. The present invention provides an ESD protection device including a base 06-24-2010
20100176484ESD protection device, composite electronic component of the same, manufacturing method of composite substrate, and manufacturing method of ESD protection device - The present invention provides an ESD protection device and the like having improved durability against repeated use. The ESD protection device includes a base 07-15-2010
20100182724COMPOSITE ELECTRONIC DEVICE AND DIGITAL TRANSMISSION CIRCUIT USING THEREOF - A composite electronic device includes first and second magnetic substrates, and a functional layer sandwiched between these magnetic substrates, and the functional layer is configured by a common-mode filter layer and a ESD protection element layer. An electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. The common-mode filter layer includes a first spiral conductor formed on an insulation layer, and a second spiral conductor formed on an insulation layer. DC resistance of a common mode filter is equal to or higher than 0.5Ω and equal to or lower than 5Ω, and an electrostatic capacitance of the ESD protection elements is equal to or lower than 0.35 pF. A width W and a length L of the first and second spiral conductors satisfy a relational equation expressed by √(L/W)<(7.6651−fc)/0.1385.07-22-2010
20110002075COMPOSITE ELECTRONIC DEVICE - The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and spiral conductors formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of gap electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the gap electrodes, and the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material. The gap of the ESD protection element is provided at exterior of the spiral conductor so as not to be overlapped with the spiral conductor in view of a laminating direction.01-06-2011
20110007438COMPOSITE ELECTRONIC DEVICE, MANUFACTURING METHOD THEREOF, AND CONNECTION STRUCTURE OF COMPOSITE ELECTRONIC DEVICE - The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and conductor patterns formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the electrodes, and the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material.01-13-2011
20110007439COMPOSITE ELECTRONIC DEVICE - The present invention is provided with a composite electronic device comprising an inductor element and an ESD protection element formed between two magnetic substrates, wherein the inductor element includes insulation layers made of a resin, and spiral conductors formed on the insulation layers, the ESD protection element includes a base insulation layer, a pair of gap electrodes arranged via gap formed therebetween on the base insulation layer, and an ESD absorbing layer arranged at least between the gap electrodes, and a gap protection layer provided on at least one of the upper side and lower side of the gap, the ESD absorbing layer includes a composite material having an insulation inorganic material and a conductive inorganic material discontinuously dispersed in a matrix of the insulation inorganic material. The gap protection layer is made of resin including magnetic powder and carbon.01-13-2011
20110027693SOLID OXIDE FUEL CELL AND MANUFACTURING METHOD THEREOF - A solid oxide fuel cell includes plural anodes and plural cathodes, which are alternately stacked on each other and have non-overlapping sections where the anodes and the cathodes do not overlap partially. The plural anodes are electrically connected to the first electrode, and the plural cathodes are electrically connected to the second electrode. At least between the anode and the cathode, the solid electrolyte is installed. Partitioning sections are disposed between each of the cathodes and the first electrode, and between each of the anodes and the second electrode.02-03-2011

Patent applications by Atsushi Hitomi, Tokyo JP