Seigo Akazawa

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Propylene packaging laminate comprising methylpentene resin blend l...
- Patent number 5,976,651
- Issue date Nov 2, 1999
- Sumitomo Bakelite Company Limited
- Yasuo Tatsumi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Composite sheet and sealed container
- Patent number 5,932,305
- Issue date Aug 3, 1999
- Sumitomo Bakelite Company, Limited
- Seigo Akazawa
- B32 - LAYERED PRODUCTS
Information Patent Grant
Easily openable sealed container and process for producing the same
- Patent number 5,316,603
- Issue date May 31, 1994
- Taiwan Semiconductor Manufacturing Company
- Seigo Akazawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Easily openable sealed container
- Patent number 5,176,314
- Issue date Jan 5, 1993
- Sumitomo Bakelite Company Limited
- Seigo Akazawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL