{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9659591","patent":{"patent_number":"US-9659591","title":"Polynomial spiral waveguide that facilitates coupling light to a near-field transducer at an oblique angle","assignee":null,"inventors":[],"filing_date":"2016-01-14T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":20,"abstract":"A recording head includes a near-field transducer located an oblique angle to a media-facing surface. The near-field transducer includes an enlarged portion and a peg extending from the enlarged portion towards the media-facing surface at a normal angle. An input waveguide of the recording head receives energy from an energy source, and an output waveguide delivers the energy to near-field transducer at the oblique angle. The output waveguide is oriented at the oblique angle. A bent waveguide with a polynomial spiral shape joins the input waveguide and the output waveguide."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Polynomial spiral waveguide that facilitates coupling light to a near-field transducer at an oblique angle","description":"A recording head includes a near-field transducer located an oblique angle to a media-facing surface. The near-field transducer includes an enlarged portion and a peg extending from the enlarged porti","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9659591","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-9659591","citation_suggestion":"Patentable. \"Polynomial spiral waveguide that facilitates coupling light to a near-field transducer at an oblique angle\" (US-9659591). https://patentable.app/patents/US-9659591","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9659591","json":"https://patentable.app/api/llm-context/US-9659591","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:36:40.358Z"}