Masao Tezuka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of recovering tantalum from silicon-containing tantalum scrap
- Patent number 4,446,115
- Issue date May 1, 1984
- Tokyo Shibaura Denki Kabushiki Kaisha
- Hiroshi Endo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for surface treatment of phosphor particles
- Patent number 4,287,229
- Issue date Sep 1, 1981
- Tokyo Shibaura Denki Kabushikikaisha
- Minoru Watanabe
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...