Ryozo Sugawara

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sheet-like articles of polyvinyl chloride
- Patent number 4,402,887
- Issue date Sep 6, 1983
- Dainippon Ink & Chemicals Inc.
- Kazuya Kuriyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Embossed interior finishing materials having excellent cigarette ma...
- Patent number 4,278,728
- Issue date Jul 14, 1981
- Dainippon Ink and Chemicals, Inc.
- Kiyoshi Honda
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...