Kazumasa Shimizu

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing lignin for carbon fiber spinning
- Patent number 5,344,921
- Issue date Sep 6, 1994
- Forestry and Forest Products Research Institute, Ministry of Agriculture, For...
- Kenichi Sudo
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING