Title:
流体圧シリンダ式拡大ヘッドにおける拡大翼閉縮保持装置
Document Type and Number:
Japanese Patent JP4122502
Kind Code:
B2
Inventors:
Makoto Kono
Hiroshi Kobayashi
Mitsugu Otsuki
Atsushi Shibata
Sakae Yukimatsu
Kazuo Yamasaki
Toshio Tanaka
Hiroshi Kobayashi
Mitsugu Otsuki
Atsushi Shibata
Sakae Yukimatsu
Kazuo Yamasaki
Toshio Tanaka
Application Number:
JP2006067046A
Publication Date:
July 23, 2008
Filing Date:
March 13, 2006
Export Citation:
Assignee:
Sumitomo Corporation
Sumisho Steel Sales Co., Ltd.
Kubota Corporation
Sanwa Equipment Co., Ltd.
Sumisho Steel Sales Co., Ltd.
Kubota Corporation
Sanwa Equipment Co., Ltd.
International Classes:
E21B10/32
Domestic Patent References:
| JP2005315053A | ||||
| JP2002322890A | ||||
| JP2006016913A | ||||
| JP11006382A | ||||
| JP2003106082A |
Attorney, Agent or Firm:
Takefumi Tanaka
Chiaki Shinseki
Chiaki Shinseki
Previous Patent: JPS4122501
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