Shigeki Katayama

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Yarn article comprising a tetrafluoroethylene polymer and a process...
- Patent number 5,061,561
- Issue date Oct 29, 1991
- Asahi Kasei Kogyo Kabushiki Kaisha
- Shigeki Katayama
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Fiber of a fluorocarbon polymer and a process for producing the same
- Patent number 5,004,648
- Issue date Apr 2, 1991
- Asahi Kasei Kogyo Kabushiki Kaisha
- Toshioki Hane
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING