Hiroshi Kawakami

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Kamakura, JA

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Patents Grantslast 30 patents

Information Patent Grant
Suction device for an oil separation tank
- Patent number 4,075,096
- Issue date Feb 21, 1978
- Bridgestone Tire Company Limited
- Hiroshi Kawakami
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Device for pulling up and paying out an oil boom
- Patent number 4,049,170
- Issue date Sep 20, 1977
- Bridgestone Tire Company Limited
- Hiroshi Kawakami
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Oil fence having a limited flexibility
- Patent number 3,962,875
- Issue date Jun 15, 1976
- Bridgestone Tire Company Limited
- Kuninori Aramaki
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Oil fence having directional control device
- Patent number 3,939,663
- Issue date Feb 24, 1976
- Bridgestone Tire Company, Ltd.
- Toshiyata Tezuka
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING