{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8475680","patent":{"patent_number":"US-8475680","title":"Luminescent material and light-emitting device","assignee":null,"inventors":[],"filing_date":"2008-09-10T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":7,"abstract":"A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and that it has a composition represented by the following general formula (2):(M1-xRx)a2AlSib2Oc2Nd2  (2)(In the general formula (2), M is at least one metallic element excluding Si and Al, R is a luminescence center element, and x, a2, b2, c2 and d2 satisfy the following relationships:"},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Luminescent material and light-emitting device","description":"A luminescent material which is featured in that it exhibits an emission peak at a wavelength ranging from 490 to 580 nm as it is excited by light having a wavelength ranging from 250 to 500 nm and th","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8475680","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-8475680","citation_suggestion":"Patentable. \"Luminescent material and light-emitting device\" (US-8475680). https://patentable.app/patents/US-8475680","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8475680","json":"https://patentable.app/api/llm-context/US-8475680","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T18:03:37.786Z"}