Yoshitaka Ohsawa

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing elastomeric optical fiber
- Patent number 4,708,833
- Issue date Nov 24, 1987
- Sumitomo Electric Industries, Ltd.
- Yoshitaka Ohsawa
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL