Yasuhiro Kiyomatsu

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing shaped articles having improved surfaces
- Patent number 4,550,001
- Issue date Oct 29, 1985
- Japan Synthetic Rubber Co., Ltd.
- Taro Suminoe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Process for producing colored contact lens
- Patent number 4,494,954
- Issue date Jan 22, 1985
- Japan Synthetic Rubber Co., Ltd.
- Taro Suminoe
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL