Hirofumi Harada

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing carbon fibers
- Patent number 4,356,158
- Issue date Oct 26, 1982
- Nippon Carbon Co., Ltd.
- Toshikatsu Ishikawa
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING