| TAMAGAWA SEIKI KABUSHIKI KAISHA Patent applications |
| Patent application number | Title | Published |
|---|
| 20160032130 | METHOD OF MANUFACTURING POLYMER COATED FERROMAGNETIC PARTICLES - A method of manufacturing a polymer coated single ferromagnetic particle is provided. The method includes hydrophobizing one single hydrophilic ferromagnetic particle by absorbing an aliphatic acid having a hydrophobic aliphatic group and a hydrophilic acid group onto the single ferromagnetic particle to obtain a single hydrophobic ferromagnetic particle; emulsifying the one single hydrophobic ferromagnetic particle with a monomer liquid comprising a nonionic surface activating agent which re-hydrophilizes the one single hydrophobic ferromagnetic particle, to obtain an emulsified liquid; adding a radical addition initiator to the emulsified liquid; and emulsion polymerizing the monomer by radical addition polymerization. | 02-04-2016 |
| 20150280533 | CONNECTOR OF VEHICULAR ANGLED CONNECTOR-INTEGRATED SERVO MOTOR AND PRODUCTION METHOD THEREOF - A primary molded body having an angled connector that is integrally connected to an insulating annular body provided in a stator of a motor section, and that has a plurality of terminals extending along an axial direction of the motor section; a through-hole that is formed in the primary molded body and runs through the angled connector from an interior of the insulating annular body; a secondary molded body that is molded so as to cover the primary molded body; a secondary molded connector that is formed in the secondary molded body and covers the angled connector; and a connector opening that is formed in the secondary molded connector and communicates with the through-hole, wherein an outlet of the through-hole communicates with the connector opening. | 10-01-2015 |
| 20120196130 | SPHERICAL FERRITE NANOPARTICLES AND METHOD FOR PRODUCING THE SAME - Spherical ferrite nanoparticles produced by a method that includes the steps of: preparing a first aqueous solution containing a disaccharide, an alkaline, an oxidation agent, seed particles and divalent iron ions; and conducting particle growth in the first aqueous solution to produce the spherical ferrite nanoparticles. | 08-02-2012 |
| 20100239864 | METHOD OF MANUFACTURING POLYMER COATED FERROMAGNETIC PARTICLES AND POLYMER COATED FERROMAGNETIC PARTICLES - Polymer coated ferromagnetic particles could be obtained giving a solution to a problem of difficulty in dispersing ferromagnetic fine particles to a level of monodispersion because of their properties apt to form aggregates. Providing hydrophilic character to hydrophobic ferromagnetic particles obtained by adsorbing hydrophobizing agent to hydrophilic ferromagnetic particles, and dispersed using nonionic surface activating agent suppressing ionic strength increase of the particles. Monomer liquid was emulsified using nonionic surface activating agent and ionic surface activating agent. Mixing the dispersion liquid of ferromagnetic particles and the monomer emulsion were mixed and emulsion polymerization was conducted. Then well-dispersed homogeneous and stable polymer coated ferromagnetic particles showing good response to magnetic field were obtained. | 09-23-2010 |
| 20100040553 | SPHERICAL FERRITE NANOPARTICLE AND METHOD FOR PRODUCTION THEREOF - A method for producing spherical ferrite nanoparticles includes the steps of: preparing a first aqueous solution containing a disaccharide, an alkaline, an oxidation agent, seed particles and divalent iron ions; and conducting particle growth in the first aqueous solution to produce the spherical ferrite nanoparticles. | 02-18-2010 |
