Yuko Murakami

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Purification method for producing high purity niobium compound and/...
- Patent number 7,214,362
- Issue date May 8, 2007
- Stella Chemifa Kabushiki Kaisha
- Hirohisa Kikuyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Purification method for producing high purity niobium compound and/...
- Patent number 7,175,823
- Issue date Feb 13, 2007
- Stella Chemifa Kabushiki Kaisha
- Hirohisa Kikuyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
Purification method for producing high purity niobium compound and/...
- Publication number 20050255035
- Publication date Nov 17, 2005
- Hirohisa Kikuyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Method of purifying niobium compound and/or tantalum compound
- Publication number 20050123459
- Publication date Jun 9, 2005
- Hirohisa Kikuyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Purification method for producing high purity niobium compound and/...
- Publication number 20050115364
- Publication date Jun 2, 2005
- Hirohisa Kikuyama
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...