Sakata Denki Co., Ltd.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Azimuth measuring method, azimuth measuring apparatus, position mea...
- Patent number 6,498,478
- Issue date Dec 24, 2002
- Radic Co., Ltd.
- Fumio Sakata
- G01 - MEASURING TESTING
Information Patent Grant
Analog arithmetic circuit with electric resistor networks and numer...
- Patent number 5,579,255
- Issue date Nov 26, 1996
- Sakata Denki Co., Ltd.
- Fumio Sakata
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Underground information collecting apparatus having a noise cancel...
- Patent number 5,565,860
- Issue date Oct 15, 1996
- Radic Co., Ltd.
- Fumio Sakata
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of measuring leakage position in impervious bottom sheet usi...
- Patent number 5,540,085
- Issue date Jul 30, 1996
- Sakata Denki Co., Ltd.
- Fumio Sakata
- G01 - MEASURING TESTING
Information Patent Grant
Well data transmission system using a magnetic drill string for tra...
- Patent number 4,800,385
- Issue date Jan 24, 1989
- Radic Co., Ltd.
- Nobuyoshi Yamazaki
- E21 - EARTH DRILLING MINING

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