Kannosuke Maeda

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Ashiya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing crystals of anhydrous sodium sulfide
- Patent number 5,173,088
- Issue date Dec 22, 1992
- Sankyo Kasei Co., Ltd.
- Kannosuke Maeda
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for preparing crystals of anhydrous sodium sulfide
- Patent number 5,071,632
- Issue date Dec 10, 1991
- Sankyo Kasei Co.
- Kannosuke Maeda
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method of producing crystals of anhydrous sodium sulfide
- Patent number 4,908,043
- Issue date Mar 13, 1990
- Sankyo Kasei Co., Ltd.
- Kannosuke Maeda
- C30 - CRYSTAL GROWTH