Takashi Yokoyama

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Yakuohji, JA

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing an isocyanate-based polymer having reduced sm...
- Patent number 4,055,522
- Issue date Oct 25, 1977
- Mitsubishi Chemical Industries Ltd.
- Kaneyoshi Ashida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...