Keiichi Minegishi

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Kumagaya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of voltage non-linearity type resistors
- Patent number 4,594,209
- Issue date Jun 10, 1986
- Chichibu Cement Co., Ltd.
- Keiichi Minegishi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Material for destroying concrete structures
- Patent number 4,409,030
- Issue date Oct 11, 1983
- Chichibu Cement Co., Ltd.
- Keiichi Minegishi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for producing hydraulic cements
- Patent number 4,404,031
- Issue date Sep 13, 1983
- Chichibu Cement Kabushikikaisha
- Giichi Sudoh
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Humidity sensor element
- Patent number 4,344,062
- Issue date Aug 10, 1982
- Chichibu Cement Co., Ltd.
- Giichi Sudoh
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES