Taizo Utsunomiya

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Continuous process for producing long .alpha.-alumina fibers
- Patent number 4,812,271
- Issue date Mar 14, 1989
- Mitsui Mining Company, Limited
- Keiichiro Koba
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING