{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10493626","patent":{"patent_number":"US-10493626","title":"Robot arm, method of estimating amount of iron powder contained in lubricant of connecting part of robot arm, and abnormality sign determination system","assignee":null,"inventors":[],"filing_date":"2018-06-27T00:00:00.000Z","publication_date":"2019-12-03T00:00:00.000Z","cpc_codes":["B25J","B25J","B25J","B25J","G01N","G05B","G05B","G05B"],"num_claims":7,"abstract":"An average value of differences between command current values acquired at a plurality of timings when the motor is controlled at a rotation speed within a preset fixed range in a preset period and an average value of the command current values in the period is acquired, and the average value of the differences is accumulated in an order of the acquisition. When a difference between an accumulated value of the average values of the differences up to an N−1th time and an accumulated value of the average values of the differences up to an Nth time becomes greater than or equal to a preset value, and then become less than the preset value, and then again becomes greater than or equal to the preset value, a notification of an abnormality sign in the robot arm is transmitted."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Robot arm, method of estimating amount of iron powder contained in lubricant of connecting part of robot arm, and abnormality sign determination system","description":"An average value of differences between command current values acquired at a plurality of timings when the motor is controlled at a rotation speed within a preset fixed range in a preset period and an","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10493626","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-10493626","citation_suggestion":"Patentable. \"Robot arm, method of estimating amount of iron powder contained in lubricant of connecting part of robot arm, and abnormality sign determination system\" (US-10493626). https://patentable.app/patents/US-10493626","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10493626","json":"https://patentable.app/api/llm-context/US-10493626","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T05:03:56.559Z"}