Marusawa
Hiroshi Marusawa, Nagaokakyo-Shi JP
Patent application number | Description | Published |
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20130182460 | MAGNETITE-CONTAINING RESIN AND ELECTRONIC COMPONENT - This disclosure provides a magnetic material-containing resin to be used for coating and forming cores. A magnetite-containing resin of the present invention includes a magnetite having a residual magnetic flux density of less than 15 Am | 07-18-2013 |
20150022309 | MAGNETIC METAL-CONTAINING RESIN, AND COIL COMPONENT AND ELECTRONIC COMPONENT USING SAME - A magnetic metal-containing resin that includes 70 to 88 mass % of a magnetic metal powder and 5.0 mass % or more of an oxide, and the oxide is 2.8 μm or more in average particle size. The magnetic metal-containing resin preferably includes 10 mass % or more of the oxide. | 01-22-2015 |
Hisashi Marusawa, Joyo-Shi JP
Patent application number | Description | Published |
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20140186766 | RESIN COMPOSITION FOR MASKS - The present invention provides a resin composition for resist to be efficiently formed into a cured product with high properties of crack resistance, bulge resistance, protrusion resistance, and the like for filling a through-hole, a via hole, or the like with the cured product. The resin composition for masks in accordance with the present invention contains a first resin and a second resin. The first resin is prepared by an addition reaction of polybasic acid anhydride with an adduct of an ethylenically unsaturated compound having a carboxyl group and bifunctional epoxy resin. The second resin having; a group obtained by an addition reaction of an epoxy group with monocarboxylic acid; and a group obtained by addition reaction of an epoxy group with polybasic acid. | 07-03-2014 |
Hisashi Marusawa, Kyoto JP
Patent application number | Description | Published |
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20140308613 | CARBOXYL-CONTAINING RESIN, RESIN COMPOSITION FOR SOLDER MASK, AND METHOD OF PREPARING CARBOXYL-CONTAINING RESIN - The carboxyl-containing resin in accordance with the present invention has a structure resulting from addition of a carboxylic acid to at least one of epoxy groups of a biphenyl novolac epoxy resin. The carboxylic acid includes at least a polybasic acid. | 10-16-2014 |