Hitoshi Shigematsu

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Ichihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing carbonaceous material carrying ultrafinely di...
- Patent number 6,194,344
- Issue date Feb 27, 2001
- Maruzen Petrochemical Co., LTD
- Masatoshi Tsuchitani
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Non-linear phosphazene polymer having schiff base structures, proce...
- Patent number 4,988,791
- Issue date Jan 29, 1991
- Maruzen Petrochemical Co., Ltd.
- Isao Maruyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...