Yoko Shirai

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Himeji-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing water absorbent polyacrylic acid (salt) resin...
- Patent number 10,434,495
- Issue date Oct 8, 2019
- Nippon Shokubai Co., Ltd.
- Sayaka Machida
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for producing water absorbent polyacrylic acid (salt) resin...
- Patent number 9,447,203
- Issue date Sep 20, 2016
- NIPPOM SHOKUBAI CO., LTD.
- Sayaka Machida
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Production method for water-absorbing resin powder
- Patent number 9,102,804
- Issue date Aug 11, 2015
- Nippon Shokubai Co., Ltd.
- Sayaka Machida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Production method for water-absorbing resin powder
- Patent number 8,513,378
- Issue date Aug 20, 2013
- Nippon Shokubai Co., Ltd.
- Sayaka Machida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING WATER ABSORBENT POLYACRYLIC ACID (SALT) RESIN...
- Publication number 20160332141
- Publication date Nov 17, 2016
- NIPPON SHOKUBAI CO., LTD
- Sayaka Machida
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
METHOD FOR PRODUCING WATER ABSORBENT POLYACRYLIC ACID (SALT) RESIN...
- Publication number 20130026412
- Publication date Jan 31, 2013
- Nippon Shokubai Co. Ltd
- Sayaka Machida
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
PRODUCTION METHOD FOR WATER-ABSORBING RESIN POWDER
- Publication number 20120220745
- Publication date Aug 30, 2012
- Nippon Shokubal Co., Ltd.
- Sayaka Machida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PRODUCTION METHOD FOR WATER-ABSORBING RESIN POWDER
- Publication number 20120220733
- Publication date Aug 30, 2012
- Sayaka Machida
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...