Shinzo Ohkada

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Kyoto, JP

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Patents Grantslast 30 patents

Information Patent Grant
Producing soft contact lenses
- Patent number 4,347,198
- Issue date Aug 31, 1982
- Toray Industries, Ltd.
- Shinzo Ohkada
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL