{
    "title": "Magnet Motor",
    "inventor_name": "Kohei Minato",
    "publication_year": 2004,
    "device_name": "Minato Magnet Motor",
    "goal": "Provide a highly efficient electric motor that consumes far less electricity than conventional motors and can generate surplus electrical power.",
    "problem_addressed": "High electricity consumption and heat generation of conventional electric motors, leading to large operating costs.",
    "concept_summary": "The Minato motor uses a rotor embedded with permanent magnets arranged at specific angles and two electromagnetic stators that give timed pulses to keep the rotor moving. The repulsion between the stator fields and the rotor magnets is claimed to sustain motion and produce mechanical output with an efficiency far exceeding 100 %.",
    "detailed_description": "The motor consists of a rotor bearing 16 permanent magnets mounted on a slanted surface. Two electromagnetic stators are positioned on either side of the rotor. Small electrical pulses to the stators push the rotor past magnetic lock-up points, after which the permanent-magnet repulsion continues to drive the rotor clockwise. The design is claimed to eliminate magnetic lock-up, reduce heat, and operate silently. Prototypes include a cooling-fan unit for convenience-store chains, a car-air-conditioning unit, and a larger 35 kg rotor that spins at >1500 rpm with only ~16 W of electrical input. In a test configuration a generator attached to the motor produced 9.144 V x 192 mA ~= 1.755 W output from an input of 1.8 V x 150 mA ~= 0.54 W, suggesting an efficiency of about 330 %.",
    "category": "Electromagnetism & Magnetism",
    "principles": [
        "Permanent magnet repulsion",
        "Timed electromagnetic pulsing",
        "Magnetic torque amplification"
    ],
    "scientific_domains": [
        "Physics",
        "Electrical Engineering",
        "Mechanical Engineering"
    ],
    "mechanisms_of_action": [
        "Magnetic repulsion between rotor and stator poles",
        "Electromagnetic pulses to overcome lock-up",
        "Permanent-magnet propulsion"
    ],
    "materials": [
        "Permanent magnets (e.g., NdFeB)",
        "Copper wire for stator coils",
        "Plastic housing",
        "Battery (small DC source)"
    ],
    "energy_sources": [
        "Electrical battery (for stator electromagnets)"
    ],
    "inputs": [
        "Low-voltage electrical power to stator coils",
        "Magnetic field from permanent magnets"
    ],
    "outputs": [
        "Mechanical rotation (torque)",
        "Electrical power from attached generator"
    ],
    "claimed_performance": "330 % efficiency (output 1.755 W from input 0.54 W); rotor speed >1500 rpm; motor consumes <=20 % of power of conventional motors with same torque; 40 000 cooling-fan units sold.",
    "experimental_evidence": "Meter readings showed 1.8 V x 150 mA (~=0.54 W) input to stator electromagnets and 9.144 V x 192 mA (~=1.755 W) output from a generator attached to the motor. A 35 kg rotor spun at over 1500 rpm with a 16 W battery.",
    "replication_status": "The company reports production of 40 000 cooling-fan motors for a major convenience-store chain and prototypes for automotive air-conditioning, indicating limited commercial replication.",
    "keywords": [
        "magnetic motor",
        "permanent magnet",
        "overunity",
        "high efficiency motor",
        "brushless motor",
        "energy saving"
    ],
    "related_technologies": [
        "Brushless DC motor",
        "Permanent-magnet synchronous motor",
        "Free-energy devices"
    ],
    "controversy_level": "high",
    "confidence_score": 0.7,
    "practicability_score": 0.6,
    "fringe_score": 0.8,
    "evidence_strength": 0.4,
    "risk_score": 0.3,
    "trl_estimate": 6,
    "source_urls": [
        "https://www.rexresearch.com/minato/",
        "https://www.rexresearch.com/minato/minato.html"
    ],
    "organizations": [
        "Japan Magnetic Fan Company"
    ],
    "applications": [
        "Cooling fans for retail stores",
        "Automotive air-conditioning units",
        "Household appliances",
        "Personal computers",
        "Cellphone mini-generators"
    ],
    "limitations": [
        "Claims of >100 % efficiency lack independent verification",
        "No peer-reviewed data or third-party testing reported",
        "Long-term reliability and durability not documented"
    ],
    "open_questions": [
        "Can the reported >300 % efficiency be reproduced under controlled conditions?",
        "What are the exact magnetic material specifications and tolerances required?",
        "How does the motor perform under continuous load for extended periods?"
    ],
    "red_flags": [
        "Overunity claim contradicts conventional physics",
        "Lack of independent replication or peer-reviewed publications",
        "Potential for marketing hype without rigorous testing"
    ],
    "evidence_quotes": [
        "Meters showed an input to the stator electromagnets of approximately 1.8 volts and 150mA input, and from the generator, 9.144 volts and 192mA output.",
        "The 35 kg rotor spins at over 1,500 rpms effortlessly and silently.",
        "Minato says that average efficiency on his motors is about 330 percent.",
        "The cooling fan prototype is being manufactured for a convenience store chain's 14,000 outlets (3 fans per outlet).",
        "The Japanese patent office turned him down on the grounds that the invention couldn't possibly work, but the US patent office granted patents."
    ]
}