Tsunetoshi Ito

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Roof sensing control of shearer in longwall mining
- Patent number 4,351,565
- Issue date Sep 28, 1982
- Taiheiyo Engineering Inc.
- Ken Takahashi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining apparatus
- Patent number 4,290,648
- Issue date Sep 22, 1981
- Taiheiyo Engineering Inc.
- Ken Takahashi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mining apparatus
- Patent number 4,279,443
- Issue date Jul 21, 1981
- Taiheiyo Engineering
- Ken Takahashi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for remotely operating self-advancing supports or the like
- Patent number 4,132,079
- Issue date Jan 2, 1979
- Taiheiyo Engineering Incorporated
- Tsunetoshi Ito
- E21 - EARTH DRILLING MINING