Toshio Izawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Self-propelled underwater cable burying machine
- Patent number 4,749,308
- Issue date Jun 7, 1988
- Kokusai Denshin Denwa Co., Ltd.
- Toshio Izawa
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Marine cable burying method and device therefor
- Patent number 4,537,530
- Issue date Aug 27, 1985
- Kokusai Denshin Denwa Co., Ltd.
- Kazuomi Yamamura
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Guiding method for cable burying device and a device therefor
- Patent number 4,492,492
- Issue date Jan 8, 1985
- Kokusai Denshin Denwa Co., Ltd.
- Toshio Izawa
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING