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Patents Grants
last 30 patents
Information
Patent Grant
Water-absorbing resin
Patent number
11,465,125
Issue date
Oct 11, 2022
Sumitomo Seika Chemicals Co., Ltd.
Mikito Chiba
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Water-absorbent resin, and soil
Patent number
11,332,558
Issue date
May 17, 2022
Sumitomo Seika Chemicals Co., Ltd.
Mikito Chiba
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Non-destructive method for evaluating structure of water-absorbing...
Patent number
11,193,899
Issue date
Dec 7, 2021
Sumitomo Seika Chemicals Co., Ltd.
Mikito Chiba
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Water-absorbent resin and absorbent article
Patent number
11,084,020
Issue date
Aug 10, 2021
Sumitomo Seika Chemicals Co., Ltd.
Mikito Chiba
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing water absorbent resin particles
Patent number
9,605,094
Issue date
Mar 28, 2017
Sumitomo Seika Chemicals Co., Ltd.
Atsushi Heguri
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Water absorbing resin particles, method for manufacturing water abs...
Patent number
9,199,218
Issue date
Dec 1, 2015
Sumitomo Seika Chemicals Co., Ltd.
Masayoshi Handa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method for producing water-absorbent resin particles
Patent number
9,138,722
Issue date
Sep 22, 2015
Sumitomo Seika Chemicals Co., Ltd.
Kenji Tanimura
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Method for producing water-absorbent resin particles and water-abso...
Patent number
8,951,637
Issue date
Feb 10, 2015
Sumitomo Seika Chemicals Co., Ltd.
Atsushi Heguri
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing water-absorbent resin particles and water-abso...
Patent number
8,900,707
Issue date
Dec 2, 2014
Sumitomo Seika Chemicals Co., Ltd.
Atsushi Heguri
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for manufacturing sulfolene compound and method for manufact...
Patent number
8,436,193
Issue date
May 7, 2013
Sumitomo Seika Chemicals Co., Ltd.
Seiji Bando
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
WATER-ABSORBENT RESIN
Publication number
20200353443
Publication date
Nov 12, 2020
Sumitomo Seika Chemicals Co., Ltd.
Mikito CHIBA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
NON-DESTRUCTIVE METHOD FOR EVALUATING STRUCTURE OF WATER-ABSORBING...
Publication number
20200326288
Publication date
Oct 15, 2020
SUMITOMO SEIKA CHEMICALS CO., LTD.
Mikito CHIBA
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
WATER-ABSORBENT RESIN, SOIL WATER-RETAINING MATERIAL, AND AGRICULTU...
Publication number
20200115476
Publication date
Apr 16, 2020
Sumitomo Seika Chemicals Co., Ltd.
Mikito CHIBA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
WATER-ABSORBING RESIN, AND ABSORBENT ARTICLE
Publication number
20200009528
Publication date
Jan 9, 2020
SUMITOMO SEIKA CHEMICALS CO., LTD.
Mikito CHIBA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
WATER-ABSORBENT RESIN, AND SOIL
Publication number
20200002445
Publication date
Jan 2, 2020
SUMITOMO SEIKA CHEMICALS CO., LTD.
Mikito CHIBA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
WATER-ABSORBENT RESIN AND ABSORBENT ARTICLE
Publication number
20200001270
Publication date
Jan 2, 2020
SUMITOMO SEIKA CHEMICALS CO., LTD.
Mikito CHIBA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PRODUCING WATER-ABSORBENT RESIN PARTICLES
Publication number
20150158015
Publication date
Jun 11, 2015
SUMITOMO SEIKA CHEMICALS CO., LTD.
Kenji Tanimura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PRODUCING WATER ABSORBENT RESIN PARTICLES
Publication number
20140243478
Publication date
Aug 28, 2014
Atsushi Heguri
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
WATER ABSORBING RESIN PARTICLES, METHOD FOR MANUFACTURING WATER ABS...
Publication number
20140127510
Publication date
May 8, 2014
SUMITOMO SEIKA CHEMICALS CO., LTD.
Masayoshi Handa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
METHOD FOR PRODUCING WATER-ABSORBENT RESIN
Publication number
20130273351
Publication date
Oct 17, 2013
Sumitomo Seika Chemicals Co., Ltd.
Junichi Takatori
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR PRODUCING WATER-ABSORBENT RESIN PARTICLES AND WATER-ABSO...
Publication number
20130260151
Publication date
Oct 3, 2013
SUMITOMO SEIKA CHEMICALS CO., LTD.
Atsushi Heguri
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
WATER ABSORBENT RESIN AND METHOD FOR PRODUCING SAME
Publication number
20130158495
Publication date
Jun 20, 2013
Sumitomo Seika Chemicals Co., Ltd.
Masayoshi Handa
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
METHOD FOR MANUFACTURING SULFOLENE COMPOUND AND METHOD FOR MANUFACT...
Publication number
20110288307
Publication date
Nov 24, 2011
SUMITOMO SEIKA CHEMICALS CO., LTD.
Seiji Bando
C07 - ORGANIC CHEMISTRY