Ching-ju Wen

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composite luminescent material
- Patent number 5,858,538
- Issue date Jan 12, 1999
- Director General of Agency of Industrial Science and Technology
- Ching-ju Wen
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...