Yoshihiro Yoshioka

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Hasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Compression-resistant water-swellable rubber composition and watert...
- Patent number 4,532,298
- Issue date Jul 30, 1985
- C. I. Kasei Co. Ltd.
- Toshihiro Kimura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water-absorbing rubber composition
- Patent number 4,420,588
- Issue date Dec 13, 1983
- Kuraray Company Limited
- Yoshihiro Yoshioka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water-swellable composition and leakage preventing material therewith
- Patent number 4,386,172
- Issue date May 31, 1983
- Kurary Isoprene Chemical Co., Ltd.
- Yoshihiro Yoshioka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Water-swellable composite caulking material for preventing water le...
- Patent number 4,382,999
- Issue date May 10, 1983
- Kuraray Isoprene Chemical Co. Ltd.
- Hiroshi Harima
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT