Shigeru Okabe

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Imaichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Production process of pre-foamed particles
- Patent number 4,749,725
- Issue date Jun 7, 1988
- Japan Styrene Paper Corp.
- Hiroyuki Akiyama
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Heat treatment apparatus for polyolefin resin particles
- Patent number 4,716,021
- Issue date Dec 29, 1987
- Japan Styrene Paper Corp.
- Hiroyuki Akiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL