{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11471993","patent":{"patent_number":"US-11471993","title":"Spacer, laminate of substrates, method for manufacturing substrate, and method for manufacturing substrate for magnetic disk","assignee":null,"inventors":[],"filing_date":"2019-03-11T00:00:00.000Z","publication_date":"2022-10-18T00:00:00.000Z","cpc_codes":["G11B","G11B"],"num_claims":13,"abstract":"The area of a spacer that is to be provided between the adjacent substrates in a laminate including a plurality of substrates to keep the adjacent substrates apart from each other is smaller than those of the stacked substrates. When pressure is released to bring the laminate obtained by providing the spacers between the substrates from a pressed state in which 0.60 MPa of pressure is applied to the laminate in the stacking direction into a non-pressed state, an amount of change ΔW in thickness per spacer that is calculated from a change in the thickness of the laminate due to the release of pressure is 30 μm or less."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Spacer, laminate of substrates, method for manufacturing substrate, and method for manufacturing substrate for magnetic disk","description":"The area of a spacer that is to be provided between the adjacent substrates in a laminate including a plurality of substrates to keep the adjacent substrates apart from each other is smaller than thos","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11471993","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-11471993","citation_suggestion":"Patentable. \"Spacer, laminate of substrates, method for manufacturing substrate, and method for manufacturing substrate for magnetic disk\" (US-11471993). https://patentable.app/patents/US-11471993","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11471993","json":"https://patentable.app/api/llm-context/US-11471993","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:23:26.171Z"}