{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9678402","patent":{"patent_number":"US-9678402","title":"Electrochromic apparatus, optical filter, imaging apparatus, lens unit, window member, and method of driving an electrochromic apparatus","assignee":null,"inventors":[],"filing_date":"2016-03-04T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["G02F","G09G","G09G","G02F","G02F","G02F","G02F","G09G","G09G"],"num_claims":13,"abstract":"An electrochromic apparatus includes an electrochromic element comprising a pair of electrodes and an electrochromic layer disposed between the pair of electrodes; and drive circuits connected to the electrochromic element, the drive circuits including a drive circuit A and a drive circuit B, in which, when no voltage is applied in a pulse width modulation (PWM) drive of the drive circuit A, a resistance value of the drive circuit A is larger than a resistance value of the electrochromic element, and in which when no voltage is applied in a PWM drive of the drive circuit B, the pair of electrodes is short-circuited."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Electrochromic apparatus, optical filter, imaging apparatus, lens unit, window member, and method of driving an electrochromic apparatus","description":"An electrochromic apparatus includes an electrochromic element comprising a pair of electrodes and an electrochromic layer disposed between the pair of electrodes; and drive circuits connected to the ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9678402","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-9678402","citation_suggestion":"Patentable. \"Electrochromic apparatus, optical filter, imaging apparatus, lens unit, window member, and method of driving an electrochromic apparatus\" (US-9678402). https://patentable.app/patents/US-9678402","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9678402","json":"https://patentable.app/api/llm-context/US-9678402","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:07:36.532Z"}