Mitsuhisa Yokoyama

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Bit exchange method and bit exchange device for shield tunneling ma...
- Patent number 9,222,357
- Issue date Dec 29, 2015
- Hitachi Zosen Corporation
- Mitsuhisa Yokoyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
BIT EXCHANGE METHOD AND BIT EXCHANGE DEVICE FOR SHIELD TUNNELING MA...
- Publication number 20140357461
- Publication date Dec 4, 2014
- HITACHI ZOSEN CORPORATION
- Mitsuhisa Yokoyama
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR