{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9738170","patent":{"patent_number":"US-9738170","title":"Wireless power supply system and power transmission device","assignee":null,"inventors":[],"filing_date":"2014-02-25T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J","H02J"],"num_claims":2,"abstract":"A wireless power supply system includes a power transmission device having a power transmission coil and a power receiving device having a power receiving coil. The power transmission coil transmits electric power to the power receiving coil via a wireless connection. The power transmission device includes a power factor calculator configured to calculate a power factor based on a phase difference between a voltage and a current supplied to the power transmission coil, and a control amount calculator configured to control electric power supplied to the power transmission coil according to a power command value, and regulate the electric power supplied to the power transmission coil when the power factor falls to a predetermined threshold power factor or less. The power transmission can therefore be regulated immediately when the power receiving coil is shifted from the power transmission coil."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Wireless power supply system and power transmission device","description":"A wireless power supply system includes a power transmission device having a power transmission coil and a power receiving device having a power receiving coil. The power transmission coil transmits e","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9738170","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9738170","citation_suggestion":"Patentable. \"Wireless power supply system and power transmission device\" (US-9738170). https://patentable.app/patents/US-9738170","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9738170","json":"https://patentable.app/api/llm-context/US-9738170","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:15:27.647Z"}