Seiji Shiromoto

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Chiba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Container comprising foamed olefin resin and process for producing...
- Patent number 6,693,140
- Issue date Feb 17, 2004
- Sumitomo Chemical Company, Limited
- Seiji Shiromoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Propylene based resin composition
- Patent number 6,288,168
- Issue date Sep 11, 2001
- Sumitomo Chemical Company, Limited
- Seiji Shiromoto
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
Plastic container
- Publication number 20050042401
- Publication date Feb 24, 2005
- Sumitomo Chemical Company, Limited
- Seiji Shiromoto
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Container comprising foamed olefin resin and process for producing...
- Publication number 20010031328
- Publication date Oct 18, 2001
- Seiji Shiromoto
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL