Yoshio Ishikawa

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Kishiwada, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plant growth sheet structure, natural turf sheet structure, method...
- Patent number 6,219,965
- Issue date Apr 24, 2001
- Otsuka Kagaku Kabushiki Kaisha
- Yoshio Ishikawa
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Artificial turf
- Patent number 5,601,886
- Issue date Feb 11, 1997
- Otsuka Kagaku Kabushiki Kaisha
- Yoshio Ishikawa
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Artificial turf, pile yarn for artificial turf and process and spin...
- Patent number 5,462,778
- Issue date Oct 31, 1995
- Otsuka Kagaku Kabushiki Kaisha
- Yoshio Ishikawa
- D03 - WEAVING