Yuzo Sumida

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Wakayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for antistatic treatment of resin and antistatic resin comp...
- Patent number 5,879,589
- Issue date Mar 9, 1999
- Kao Corporation
- Seiichi Miyanaga
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for preparing highly reactive, water-absorptive resin
- Patent number 4,727,097
- Issue date Feb 23, 1988
- Kao Corporation
- Takatoshi Kobayashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Absorptive material
- Patent number 4,666,975
- Issue date May 19, 1987
- Kao Corporation
- Harumasa Yamasaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Dispersion stabilizer for water-in-oil suspension polymerization
- Patent number 4,639,491
- Issue date Jan 27, 1987
- Kao Corporation
- Akihiro Kondo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing highly water absorptive polymer
- Patent number 4,497,930
- Issue date Feb 5, 1985
- Kao Corporation
- Harumasa Yamasaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Process for producing water-absorbent materials having excellent wa...
- Patent number 4,459,396
- Issue date Jul 10, 1984
- Kao Soap Co., Ltd.
- Harumasa Yamasaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE