Title:
閉塞部を有する中空材の製造方法及びその装置
Document Type and Number:
Japanese Patent JP4694738
Kind Code:
B2
Inventors:
Satoshi Murakami
Takuya Isobe
Development Toshihiko
Takuya Isobe
Development Toshihiko
Application Number:
JP2001263695A
Publication Date:
June 08, 2011
Filing Date:
August 31, 2001
Export Citation:
Assignee:
Aisin Light Metal Co., Ltd.
International Classes:
B21C23/14; B21K21/14; B21C25/08; B21J5/02; B21J5/06; B21J13/02; B21J13/03
Domestic Patent References:
| JP30000608B1 | ||||
| JP7051756A | ||||
| JP2001191110A | ||||
| JP2003071515A |
Attorney, Agent or Firm:
Kaichi Otani