{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9613651","patent":{"patent_number":"US-9613651","title":"Bearing apparatus, spindle motor, and disk drive apparatus","assignee":null,"inventors":[],"filing_date":"2016-11-04T00:00:00.000Z","publication_date":"2017-04-04T00:00:00.000Z","cpc_codes":["G11B"],"num_claims":15,"abstract":"This bearing apparatus includes a shaft portion, a sleeve portion, and a fluid arranged between the shaft portion and the sleeve portion. A thrust dynamic pressure portion is filled with the fluid, and a surface of the fluid is defined in a seal portion. The thrust dynamic pressure portion includes a dynamic pressure generation portion including thrust dynamic pressure grooves, an intermediate portion arranged outside of the dynamic pressure generation portion and including an annular groove in the shape of a circular ring, and a discharge portion arranged outside of the annular groove and including discharge grooves. The annular groove is arranged to have a depth smaller than a minimum radial width of the seal portion. This makes it easier for any air bubble in the thrust dynamic pressure portion to travel into the seal portion in accordance with a flow of the fluid caused in the discharge portion to be discharged outward. This reduces the likelihood that any air bubble will stay in the vicinity of the dynamic pressure generation portion."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Bearing apparatus, spindle motor, and disk drive apparatus","description":"This bearing apparatus includes a shaft portion, a sleeve portion, and a fluid arranged between the shaft portion and the sleeve portion. A thrust dynamic pressure portion is filled with the fluid, an","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9613651","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-9613651","citation_suggestion":"Patentable. \"Bearing apparatus, spindle motor, and disk drive apparatus\" (US-9613651). https://patentable.app/patents/US-9613651","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9613651","json":"https://patentable.app/api/llm-context/US-9613651","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:21:27.975Z"}