[Example] Antenna coil using NFMI for wireless earphones
Coil winding technology: prototyping, manufacturing, design
Production and mass production of antenna coils using Near Field Magnetic Induction (NFMI) employed by major electronics manufacturers!
We successfully produced and mass-produced an antenna coil using NFMI, which connects the two ears of wireless earphones. This coil required a high Q value in the 10 MHz frequency band. Our winding technology and automation technology have been adopted by major electronics manufacturers. ■ Features of our coil prototype development. We can handle the production of coils with special shapes, special wire materials, and special applications from one unit to mass production. Examples of applications: 1. Development of new products. 2. Development of sensors for next-generation automobiles. 3. Aerospace, space, and marine development. 4. Medical applications. 5. Magnetic field generation devices. 6. Magnetic canceller coils. We have experience with special materials as well. (Examples) Aluminum-clad wire, litz wire, optical fiber wire, superconducting wire, etc. Our company specializes in prototypes, aiming to create coils according to design specifications. Think of it as an artistic coil that is wound by craftsmen with tight alignment. We develop special winding machines, winding jigs, tension adjustment devices, and peripheral equipment in-house, and craftsmen carry out the winding process. During the design phase, we propose products incorporating coils using 3D CAD. Additionally, please consult us regarding magnetic field analysis.
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basic information
■Achieving a wide range of winding. - Miniature coils - Linear motor coils - Antenna coils - Superconducting coils - Helmholtz coils - Rogowski coils - Bobbin-wound and bobbinless coils (air-core coils), etc. ■Capable of handling from micro coils to large coils (From smaller than a grain of rice to the size of a tatami mat) - Wire diameter: φ0.025 to φ3.2mm ■Short delivery times - Abundant wire material inventory and in-house developed systems enable short delivery times ■Tightly aligned winding technology - Providing aligned wound coils with our in-house developed tension adjustment devices and winding technology ■High-precision molded coils managed with an outer dimension accuracy of ±0.1 for maximum dimensions ●For other functions and details, please refer to our catalog or our company website.
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Applications/Examples of results
Since our establishment, we have a wealth of experience in development and delivery to major companies across various industries as a coil manufacturing manufacturer. 【Examples of Achievements】 Industrial equipment, consumer electronics, aerospace, semiconductor industry, EV/HEV industry, medical devices, university prototypes 【Commonly Used Industries】 Resin and plastics, ferrous/non-ferrous metals, industrial machinery, consumer electrical equipment, industrial electrical equipment, electronic components and semiconductors, automotive and transportation equipment, testing, analysis, and measurement, IT and information communication, contract manufacturing and processing, educational and research institutions.
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Company information
Since our establishment in 1958, we have contributed to society through the manufacturing of electronic components such as coil winding, tension adjustment devices, relays, and connectors. Our products are used everywhere in unseen areas, including aerospace, industrial equipment, and information and communication sectors. Additionally, we have added graphite sheets and LED lighting to our product lineup, and we aim to contribute to society by developing new markets and providing coil winding technology to various industries. We recognize the social mission of the manufacturing industry, and not only do we produce goods, but we are also committed to striving for technological innovation in all fields based on excellent technology and trust, working towards the development of society.
