Title:
管状通路構造
Document Type and Number:
Japanese Patent JP4053827
Kind Code:
B2
Inventors:
Fumio Kurosaki
Keitaro Mori
Shinichiro Nozawa
Hiroyuki Aida
Keitaro Mori
Shinichiro Nozawa
Hiroyuki Aida
Application Number:
JP2002184595A
Publication Date:
February 27, 2008
Filing Date:
June 25, 2002
Export Citation:
Assignee:
East Japan Railway Company
International Classes:
E21D9/14; E21D11/38
Domestic Patent References:
| JP2000080890A | ||||
| JP3126165B2 | ||||
| JP4120396A | ||||
| JP5231093A | ||||
| JP9221990A | ||||
| JP7019000A | ||||
| JP7247793A | ||||
| JP4109000A | ||||
| JP52001931A |
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune
Yoshio Arafune