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Masahiro MURAKAMI
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Himeji-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Water absorbent resin and water stop material
Patent number
12,194,436
Issue date
Jan 14, 2025
Sumitomo Seika Chemicals Co., Ltd.
Xinlei Yan
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Water-absorbent resin and method of producing water-absorbent resin
Patent number
11,136,420
Issue date
Oct 5, 2021
Sumitomo Seika Chemicals Co. Ltd.
Tetsuhiro Hinayama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Water-absorbent resin and absorbent article
Patent number
10,525,443
Issue date
Jan 7, 2020
Sumitomo Seika Chemicals Co. Ltd.
Masahiro Murakami
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for producing water-absorbent resin
Patent number
10,065,173
Issue date
Sep 4, 2018
Sumitomo Seika Chemicals Co., Ltd.
Tetsuhiro Hinayama
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Water-absorbent resin and absorbent article
Patent number
9,982,069
Issue date
May 29, 2018
Sumitomo Seika Chemicals Co. Ltd.
Tetsuhiro Hinayama
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Water-absorbent resin and absorbent article
Patent number
9,925,294
Issue date
Mar 27, 2018
Sumitomo Seika Chemicals Co. Ltd.
Tetsuhiro Hinayama
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method of manufacturing water-absorbent resin, water-absorbent resi...
Patent number
9,873,755
Issue date
Jan 23, 2018
Sumitomo Seika Chemicals Co. Ltd.
Masahiro Murakami
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Patents Applications
last 30 patents
Information
Patent Application
WATER-ABSORBENT RESIN COMPOSITION, METHOD FOR PRODUCING WATER-ABSOR...
Publication number
20230285936
Publication date
Sep 14, 2023
Sumitomo Seika Chemicals Co., Ltd.
Masahiro MURAKAMI
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
WATER ABSORBENT RESIN AND WATER STOP MATERIAL
Publication number
20220184579
Publication date
Jun 16, 2022
SUMITOMO SEIKA CHAMICALS CO., LTD.
Xinlei YAN
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
WATER-ABSORBENT RESIN AND METHOD OF PRODUCING WATER-ABSORBENT RESIN
Publication number
20200199263
Publication date
Jun 25, 2020
SUMITOMO SEIKA CHEMICALS CO.. LTD.
Tetsuhiro Hinayama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
WATER ABSORBENT RESIN COMPOSITION, ABSORBENT, AND ABSORBENT ARTICLE
Publication number
20200030482
Publication date
Jan 30, 2020
Sumitomo Seika Chemicals Co., Ltd.
Masahiro Murakami
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
WATER-ABSORBENT RESIN AND METHOD OF PRODUCING WATER-ABSORBENT RESIN
Publication number
20170210831
Publication date
Jul 27, 2017
SUMITOMO SEIKA CHEMICALS CO.. LTD.
Tetsuhiro Hinayama
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
WATER-ABSORBENT RESIN AND ABSORBENT ARTICLE
Publication number
20170203279
Publication date
Jul 20, 2017
SUMITOMO SEIKA CHEMICALS CO.. LTD.
Masahiro Murakami
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
METHOD OF MANUFACTURING WATER-ABSORBENT RESIN, WATER-ABSORBENT RESI...
Publication number
20170107313
Publication date
Apr 20, 2017
SUMITOMO SEIKA CHEMICALS CO. LTD.
Masahiro Murakami
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
WATER-ABSORBENT RESIN AND ABSORBENT ARTICLE
Publication number
20170107312
Publication date
Apr 20, 2017
SUMITOMO SEIKA CHEMICALS CO. LTD.
Tetsuhiro Hinayama
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
WATER-ABSORBENT RESIN AND ABSORBENT ARTICLE
Publication number
20160367717
Publication date
Dec 22, 2016
SUMITOMO SEIKA CHEMICALS CO. LTD
Tetsuhiro HINAYAMA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
PROCESS FOR PRODUCING WATER-ABSORBENT RESIN
Publication number
20160030919
Publication date
Feb 4, 2016
Sumitomo Seika Chemicals Co., Ltd.
Tetsuhiro Hinayama
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE