Keishi Tsuboi

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Maleic acid based copolymer, and its production process and use
- Patent number 5,993,666
- Issue date Nov 30, 1999
- Nippon Shokubai Co., Ltd.
- Shigeru Yamaguchi
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Maleic acid based copolymer and its production process and use
- Patent number 5,733,857
- Issue date Mar 31, 1998
- Nippon Shokubai Co., Ltd.
- Shigeru Yamaguchi
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Drying process of viscous solution containing (meth)acrylic acid-ba...
- Patent number 5,668,252
- Issue date Sep 16, 1997
- Nippon Shokubai Co., Ltd.
- Tokihiro Yokoi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Biodegradable hydrophilic crosslinked polymer, process for producin...
- Patent number 5,298,570
- Issue date Mar 29, 1994
- Nippon Shokubai Co., Ltd.
- Hideyuki Tahara
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...