{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8461790","patent":{"patent_number":"US-8461790","title":"Rotary encoder, rotary motor, and rotary motor system","assignee":null,"inventors":[],"filing_date":"2012-11-21T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G01D","G01D","G01D","G01D","G05B"],"num_claims":12,"abstract":"The encoder includes a disk in a disk shape that is arranged rotatably about a rotation axis and that includes one track in a ring shape on which a rotating grating is formed and one or more origin detection areas serving as partial areas on which a rotating grating is formed, and a mask that is fixed and arranged in a manner facing the disk and on which one or more fixed gratings are formed so as to constitute a diffraction interference optical system together with the rotating gratings. A plurality of slits and included in at least one rotating grating are formed along a curved line obtained by curving a plurality of radial lines about the rotation axis in the circumferential direction at predetermined curvature such that pitches and of the slits and can be set to a predetermined value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Rotary encoder, rotary motor, and rotary motor system","description":"The encoder includes a disk in a disk shape that is arranged rotatably about a rotation axis and that includes one track in a ring shape on which a rotating grating is formed and one or more origin de","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8461790","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-8461790","citation_suggestion":"Patentable. \"Rotary encoder, rotary motor, and rotary motor system\" (US-8461790). https://patentable.app/patents/US-8461790","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8461790","json":"https://patentable.app/api/llm-context/US-8461790","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:37:13.647Z"}