Yichao Jiang

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Organic electroluminescent light-emitting array and optical head as...
- Patent number 6,297,842
- Issue date Oct 2, 2001
- Oki Data Corporation
- Masumi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS