Hisomu Nagai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparation of coke and carbonizer therefor
- Patent number 4,141,793
- Issue date Feb 27, 1979
- Nissho-Iwai Co., Ltd.
- Yutaka Aoki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for the preparation of synthetic coking coal
- Patent number 4,119,409
- Issue date Oct 10, 1978
- Nissho-Iwai Co., Ltd.
- Yutaka Aoki
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...