Satoshi Nozaki

Follow

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cylindrical telescopic kelly-bar apparatus
- Patent number 5,263,899
- Issue date Nov 23, 1993
- Hitachi Construction Machinery Co., Ltd.
- Satoshi Nozaki
- E21 - EARTH DRILLING MINING
Information Patent Grant
Stopper apparatus for rotary reaction force
- Patent number 4,984,936
- Issue date Jan 15, 1991
- Hitachi Construction Machinery Co., Ltd.
- Hiroshi Kusumi
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING