K.K. Joban Engineering

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Iwaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Automatic bolt driving apparatus for driving bolts to secure elonga...
- Patent number 5,730,034
- Issue date Mar 24, 1998
- K.K. Joban Engineering
- Ryoichi Hashimoto
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Socket mechanism having flexible coupling therein used with vertica...
- Patent number 5,609,079
- Issue date Mar 11, 1997
- K.K. Joban Engineering
- Ryoichi Hashimoto
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS