{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9631140","patent":{"patent_number":"US-9631140","title":"Light-emitting device","assignee":null,"inventors":[],"filing_date":"2013-12-19T00:00:00.000Z","publication_date":"2017-04-25T00:00:00.000Z","cpc_codes":["H01L","H01L"],"num_claims":7,"abstract":"In a light-emitting device, a 50%-area average diameter of primary particles of a Eu-activated β SiAlON fluorescent material is 10 μm or more, a scattering probability of scattering materials at a peak wavelength of excitation light emitted from an excitation light source is 0.1 mm−1 or more and 0.5 mm−1 or less, and the Eu-activated β SiAlON fluorescent material is entrapped inside a transparent member in a dispersed state together with the scattering materials."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Light-emitting device","description":"In a light-emitting device, a 50%-area average diameter of primary particles of a Eu-activated β SiAlON fluorescent material is 10 μm or more, a scattering probability of scattering materials at a pea","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9631140","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-9631140","citation_suggestion":"Patentable. \"Light-emitting device\" (US-9631140). https://patentable.app/patents/US-9631140","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9631140","json":"https://patentable.app/api/llm-context/US-9631140","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:01:12.421Z"}