Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp, Sony CorpfiledCriticalNippon Steel Corp
Priority to SG1997003023ApriorityCriticalpatent/SG66392A1/en
Priority claimed from US08/920,174external-prioritypatent/US5871851A/en
Publication of SG66392A1publicationCriticalpatent/SG66392A1/en