{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9784687","patent":{"patent_number":"US-9784687","title":"Examination method to apprais corundum that has undergone beryllium diffusion treatment","assignee":null,"inventors":[],"filing_date":"2015-08-28T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["G01N","G01N"],"num_claims":1,"abstract":"This invention is within the technical field of corundum appraisal, and it involves an examination method to determine whether corundum has undergone beryllium diffusion treatment. Procedurally, a highly sensitive Raman spectrometer (S/N>10,000) is used to scan and examine the samples. The spectrometer is fitted with a tailor-made probe having a large facula and surface area. Specially developed software is then used to perform an intensity correction and a background elimination to obtain a specific Raman spectral range (250-120 cm-1) with the corrected intensity and a smooth baseline. The corrected and standardized Raman characteristic peak at 804 cm-1 (side-band) is used as a basis to determine whether the corundum has undergone beryllium diffusion treatment. This invention method has the advantages of being non-destructive, simple, fast, and practical. Also, it can accurately determine whether corundum has been treated."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Examination method to apprais corundum that has undergone beryllium diffusion treatment","description":"This invention is within the technical field of corundum appraisal, and it involves an examination method to determine whether corundum has undergone beryllium diffusion treatment. Procedurally, a hig","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9784687","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-9784687","citation_suggestion":"Patentable. \"Examination method to apprais corundum that has undergone beryllium diffusion treatment\" (US-9784687). https://patentable.app/patents/US-9784687","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9784687","json":"https://patentable.app/api/llm-context/US-9784687","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T14:00:22.785Z"}