Michio Ishitobi

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Otsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polybenzazole fiber having high tensile modulus and process of manu...
- Patent number 6,040,050
- Issue date Mar 21, 2000
- Toyo Boseki Kabushiki Kaisha
- Tooru Kitagawa
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Polybenzazole fiber and method for production thereof
- Patent number 5,993,963
- Issue date Nov 30, 1999
- Toyo Boseki Kabushiki Kaisha
- Yoshihiko Teramoto
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Processes for producing polybenzazole fibers
- Patent number 5,772,942
- Issue date Jun 30, 1998
- Toyo Boseki Kabushiki Kaisha
- Yoshihiko Teramoto
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING