{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9728217","patent":{"patent_number":"US-9728217","title":"Glass substrate for magnetic disk and magnetic disk for heat assisted magnetic recording","assignee":null,"inventors":[],"filing_date":"2013-10-31T00:00:00.000Z","publication_date":"2017-08-08T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B"],"num_claims":4,"abstract":"A glass substrate for use as a magnetic disk for heat assisted magnetic recording can restrain the occurrence of scratches when a magnetic head is in operation. The glass substrate for the magnetic disk includes a principal face on which an arithmetic average waviness Wa of a wavelength band of 1 to 3 mm is 2.15 Å or less."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Glass substrate for magnetic disk and magnetic disk for heat assisted magnetic recording","description":"A glass substrate for use as a magnetic disk for heat assisted magnetic recording can restrain the occurrence of scratches when a magnetic head is in operation. The glass substrate for the magnetic di","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9728217","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-9728217","citation_suggestion":"Patentable. \"Glass substrate for magnetic disk and magnetic disk for heat assisted magnetic recording\" (US-9728217). https://patentable.app/patents/US-9728217","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9728217","json":"https://patentable.app/api/llm-context/US-9728217","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:04:22.676Z"}