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Kenichi Katsuo
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Otsu, JP
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last 30 patents
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Patent Grant
Thermosetting polyurethane-urea elastic yarn and process thereof
Patent number
5,616,676
Issue date
Apr 1, 1997
Toyo Boseki Kabushiki Kaisha
Kenichi Katsuo
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Process for production of polyester polyurethane elastomeric fibers
Patent number
4,963,310
Issue date
Oct 16, 1990
Toyo Boseki Kabushiki Kaisha
Hideyuki Mitamura
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Polymeric antioxidant and process for production thereof
Patent number
4,824,929
Issue date
Apr 25, 1989
Toyo Boseki Kabushiki Kaisha
Yoshikazu Arimatsu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Urethane polymers containing a tertiary nitrogen atom, and their pr...
Patent number
4,562,239
Issue date
Dec 31, 1985
Toyo Boseki Kabushiki Kaisha
Noriomi Yamane
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...