Hideo Hatakeyama

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Hiratsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing plate-like polystyrene resin foam
- Patent number 4,393,016
- Issue date Jul 12, 1983
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process and apparatus for extruding plastic foams through a fluoroc...
- Patent number 4,324,748
- Issue date Apr 13, 1982
- Japan Styrene Paper Corporation
- Hideo Hatakeyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for producing foamed polystyrene boards
- Patent number 4,260,572
- Issue date Apr 7, 1981
- Japan Styrene Paper Corporation
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...