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.)
Expired
Application number
CA890382A
Inventor
Sato Hideshi
Taniguchi Yasuyuki
Herai Toshio
Uchida Hiromu
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.)
Nippon Steel Corp
Original Assignee
Hideshi Sato
Hiromu Uchida
Toshio Herai
Yasuyuki Taniguchi
Nippon Steel Corp
Publication date
Application grantedgrantedCritical
Publication of CA890382ApublicationCriticalpatent/CA890382A/en