{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-12004429","patent":{"patent_number":"US-12004429","title":"Piezoelectric body film, piezoelectric body film production method, and piezoelectric body device","assignee":null,"inventors":[],"filing_date":"2023-09-11T00:00:00.000Z","publication_date":"2024-06-04T00:00:00.000Z","cpc_codes":["G01N"],"num_claims":3,"abstract":"To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric body film comprising a fluororesin as a piezoelectric material, the fluororesin containing, as a main constituent unit, a repeating unit derived from vinylidene fluoride, a piezoelectric constant d31 of the piezoelectric body film being 20 pC/N or greater, and an extrapolated onset temperature at start of shrinkage determined by TMA measurement being not lower than 90° C. and not higher than 115° C. The difference between piezoelectric constants d31 measured before and after heating the piezoelectric body film at 100° C. for 24 hours relative to the piezoelectric constant d31 before the heating for 24 hours is 20% or less."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Piezoelectric body film, piezoelectric body film production method, and piezoelectric body device","description":"To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric bod","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-12004429","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-12004429","citation_suggestion":"Patentable. \"Piezoelectric body film, piezoelectric body film production method, and piezoelectric body device\" (US-12004429). https://patentable.app/patents/US-12004429","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-12004429","json":"https://patentable.app/api/llm-context/US-12004429","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T17:22:33.513Z"}