{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8489091","patent":{"patent_number":"US-8489091","title":"Mobile communication terminal, IC card, mobile communication system, program, and communication charge notification method","assignee":null,"inventors":[],"filing_date":"2011-03-11T00:00:00.000Z","publication_date":"2013-07-16T00:00:00.000Z","cpc_codes":["H04M","H04M","H04M","H04M","H04M","H04M","H04M","H04M","H04M","H04M","H04M"],"num_claims":6,"abstract":"The present invention provides a mobile communication terminal, an IC card, a mobile communication system, a program, and a communication charge notification method capable of easily indicating roaming communication charges and preventing a user from being unexpectedly charged for communication. A mobile phone 10 detects that it is located in a country B as a roaming area based on information transmitted from a base station 32, inquires of a charge information related server 24 whether or not a communication charge information stored in a storage section 16 is the latest communication charge information, when the communication charge information is not the latest communication charge information, updates the stored communication charge information based on the communication charge information transmitted from the charge information related server 24, reads the communication charge information of the country B from the storage section 16, and displays the communication charge information on a display section 14. "},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Mobile communication terminal, IC card, mobile communication system, program, and communication charge notification method","description":"The present invention provides a mobile communication terminal, an IC card, a mobile communication system, a program, and a communication charge notification method capable of easily indicating roamin","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8489091","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-8489091","citation_suggestion":"Patentable. \"Mobile communication terminal, IC card, mobile communication system, program, and communication charge notification method\" (US-8489091). https://patentable.app/patents/US-8489091","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8489091","json":"https://patentable.app/api/llm-context/US-8489091","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:50:56.323Z"}