Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobe Steel Ltd
Takenaka Komuten Co Ltd
Original Assignee
Kobe Steel Ltd
Takenaka Komuten Co Ltd
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 Kobe Steel Ltd, Takenaka Komuten Co LtdfiledCriticalKobe Steel Ltd
Priority to JP60015181ApriorityCriticalpatent/JPS61174094A/ja
Publication of JPS61174094ApublicationCriticalpatent/JPS61174094A/ja
Publication of JPH0313157B2publicationCriticalpatent/JPH0313157B2/ja