Kiyoshi Tsuchiya

Follow

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hydraulic muck handling system for tunnel boring machine
- Patent number 6,142,577
- Issue date Nov 7, 2000
- Hitachi Construction Machinery Co., Ltd.
- Minoru Tayama
- E21 - EARTH DRILLING MINING
Information Patent Grant
Control system for synchronous rotation of cutter heads, for use in...
- Patent number 4,939,431
- Issue date Jul 3, 1990
- Ishikawajima-Harima Kukogyo K.K.
- Hidetsugu Yamazaki
- E21 - EARTH DRILLING MINING
Information Patent Grant
Vibration generating apparatus
- Patent number 4,653,594
- Issue date Mar 31, 1987
- Nippon Telegraph & Telephone Public Corporation
- Hiroshi Yamamoto
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information Patent Grant
Pipe laying apparatus
- Patent number 4,576,515
- Issue date Mar 18, 1986
- Nippon Telegraph and Telephone Public Corp.
- Keiji Morimoto
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pipe laying apparatus
- Patent number 4,571,122
- Issue date Feb 18, 1986
- Nippon Telegraph and Telephone Public Corp.
- Hiroshi Yamamoto
- E21 - EARTH DRILLING MINING