{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10490220","patent":{"patent_number":"US-10490220","title":"Magnetic tape device, magnetic reproducing method, and head tracking servo method","assignee":null,"inventors":[],"filing_date":"2018-10-15T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":14,"abstract":"Provided is a magnetic tape device in which a magnetic tape transportation speed is equal to or lower than 18 m/sec, Ra measured regarding a surface of a magnetic layer of a magnetic tape is equal to or smaller than 2.0 nm, a C—H derived C concentration calculated from a C—H peak area ratio of C1s spectra obtained by X-ray photoelectron spectroscopic analysis performed on the surface of the magnetic layer at a photoelectron take-off angle of 10 degrees is 45 to 65 atom %, and ΔSFD (=SFD25°C.−SFD−190° C.) in a longitudinal direction of the magnetic tape is equal to or smaller than 0.50, with the SFD25° C. being SFD measured in a longitudinal direction of the magnetic tape at a temperature of 25° C., and the SFD−190° C. being SFD measured at a temperature of −190° C."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Magnetic tape device, magnetic reproducing method, and head tracking servo method","description":"Provided is a magnetic tape device in which a magnetic tape transportation speed is equal to or lower than 18 m/sec, Ra measured regarding a surface of a magnetic layer of a magnetic tape is equal to ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10490220","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-10490220","citation_suggestion":"Patentable. \"Magnetic tape device, magnetic reproducing method, and head tracking servo method\" (US-10490220). https://patentable.app/patents/US-10490220","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10490220","json":"https://patentable.app/api/llm-context/US-10490220","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:33:31.721Z"}