Title:
Nakahori excavator
Document Type and Number:
Japanese Patent JP6099955
Kind Code:
B2
Inventors:
Wataru Masuyama
Nobuyuki Sugawara
Tetsuji Awane
Nobuyuki Sugawara
Tetsuji Awane
Application Number:
JP2012266925A
Publication Date:
March 22, 2017
Filing Date:
December 06, 2012
Export Citation:
Assignee:
Shirota Co., Ltd.
Sugawara Construction Co., Ltd.
Hachishu Construction Machinery Co., Ltd.
Sugawara Construction Co., Ltd.
Hachishu Construction Machinery Co., Ltd.
International Classes:
E21B11/00; E21B4/02; E21B7/00; E21B17/22
Domestic Patent References:
| JP2002276273A | ||||
| JP50005201Y1 | ||||
| JP2006241919A | ||||
| JP44015982Y1 | ||||
| JP2010255212A | ||||
| JP44005038B1 | ||||
| JP44026219B1 | ||||
| JP53034315A | ||||
| JP59076393A | ||||
| JP3233019A | ||||
| JP10266757A | ||||
| JP11002084A | ||||
| JP2004068398A | ||||
| JP2005061205A | ||||
| JP2012012839A | ||||
| JP50127902U | ||||
| JP58059883U | ||||
| JP59163686U |
Foreign References:
| US4202416 |
Attorney, Agent or Firm:
Takeshi Sugimoto
Yata Ryuichi
Yata Ryuichi