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Koichi Yonemura
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Himeji, JP
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last 30 patents
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Patent Grant
Method for production of porous cross-linked polymer
Patent number
6,362,243
Issue date
Mar 26, 2002
Nippon Shokubai Co., Ltd.
Masazumi Sasabe
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for production of porous cross-linked polymer material
Patent number
6,274,638
Issue date
Aug 14, 2001
Nippon Shokubai Co., Ltd.
Koichi Yonemura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for production of porous material
Patent number
6,166,097
Issue date
Dec 26, 2000
Nippon Shokubai Co., Ltd.
Koichi Yonemura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Water-swellable crosslinked polymer, production process therefor, a...
Patent number
6,110,984
Issue date
Aug 29, 2000
Nippon Shokubai Co., Ltd.
Hirotama Fujimaru
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Water-absorbent resins and manufacturing methods thereof
Patent number
5,792,855
Issue date
Aug 11, 1998
Nippon Shokubai Co., Ltd.
Koichi Yonemura
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method for production of particulate hydrated gel polymer and absor...
Patent number
5,275,773
Issue date
Jan 4, 1994
Nippon Shokubai Co., Ltd.
Yoshio Irie
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for production of particulate hydrogel polymer and absorbent...
Patent number
5,250,640
Issue date
Oct 5, 1993
Nippon Shokubai Co., Ltd.
Yoshio Irie
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL