Osamu Miyamoto

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Patents Grantslast 30 patents

Information Patent Grant
Multiple air hammer apparatus and excavating direction correcting m...
- Patent number 6,467,558
- Issue date Oct 22, 2002
- Tone Corporation
- Osamu Miyamoto
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Multiple air hammer apparatus and excavating direction correcting m...
- Publication number 20010006120
- Publication date Jul 5, 2001
- Osamu Miyamoto
- E21 - EARTH DRILLING MINING