Eiichi Otsuka

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Konosu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Water-swellable adhesive water stop
- Patent number 5,290,844
- Issue date Mar 1, 1994
- C. I. Kasei Co., Ltd.
- Eiichi Otsuka
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...