Title:
【発明の名称】熱間成形を含む大径角形鋼管製造法および装置
Document Type and Number:
Japanese Patent JP2852308
Kind Code:
B2
Inventors:
NAKAJIMA NORIO
NAKAJIMA HIROSHI
NAKAJIMA NORIO
NAKAJIMA SHIN
NAKAJIMA HIROSHI
NAKAJIMA NORIO
NAKAJIMA SHIN
Application Number:
JP22856991A
Publication Date:
February 03, 1999
Filing Date:
August 15, 1991
Export Citation:
Assignee:
NAKAJIMA KOKAN KK
NAKAJIMA NORIO
NAKAJIMA HIROSHI
NAKAJIMA NORIO
NAKAJIMA SHIN
NAKAJIMA NORIO
NAKAJIMA HIROSHI
NAKAJIMA NORIO
NAKAJIMA SHIN
International Classes:
B21C37/15; B21D5/12; C21D8/10; (IPC1-7): B21C37/15
Domestic Patent References:
| JP61115614A | ||||
| JP1266913A | ||||
| JP397810A | ||||
| JP3151117A |
Attorney, Agent or Firm:
Yoshihiro Morimoto