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.)
Riken Corp
Riken Piston Ring Industrial Co Ltd
Original Assignee
Riken Corp
Riken Piston Ring Industrial 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 Riken Corp, Riken Piston Ring Industrial Co LtdfiledCriticalRiken Corp
Priority to JP8441975ApriorityCriticalpatent/JPS5847445B2/en
Publication of JPS528911ApublicationCriticalpatent/JPS528911A/en
Publication of JPS5847445B2publicationCriticalpatent/JPS5847445B2/en
PURPOSE: A process for producing piston rings of small tension weakening degree and high deflective strength and fatigue strength using true circular sintering materials.