Tomoyuki Abe

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Fujisawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
System and method for transmitting and calculating data in shield m...
- Patent number 5,330,292
- Issue date Jul 19, 1994
- Kabushiki Kaisha Komatsu Seisakusho
- Shoichi Sakanishi
- G08 - SIGNALLING
Information Patent Grant
Apparatus for detecting position of underground excavator and magne...
- Patent number 5,240,350
- Issue date Aug 31, 1993
- Kabushiki Kaisha Komatsu Seisakusho
- Hiroaki Yamaguchi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for detecting collapse of natural ground in sh...
- Patent number 5,199,818
- Issue date Apr 6, 1993
- Kabushiki Kaisha Komatsu Seisakusho
- Masahiko Yamamoto
- E21 - EARTH DRILLING MINING