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Patents Grants
last 30 patents
Information
Patent Grant
Porous hollow fiber membrane and method for producing porous hollow...
Patent number
11,654,400
Issue date
May 23, 2023
Asahi Kasei Kabushiki Kaisha
Yuki Miki
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Method of filtration using porous membranes
Patent number
11,534,723
Issue date
Dec 27, 2022
Asahi Kasei Kabushiki Kaisha
Daisuke Okamura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Filtration method using porous membrane
Patent number
11,471,834
Issue date
Oct 18, 2022
Asahi Kasei Kabushiki Kaisha
Daisuke Okamura
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Hollow fiber membrane module and filtering method
Patent number
11,364,469
Issue date
Jun 21, 2022
Asahi Kasei Kabushiki Kaisha
Shigenori Kasai
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Porous hollow fiber membrane, method for producing same, and water...
Patent number
11,338,253
Issue date
May 24, 2022
Asahi Kasei Kabushiki Kaisha
Daisuke Okamura
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Grant
Porous hollow fiber membrane, method for producing porous hollow fi...
Patent number
11,110,402
Issue date
Sep 7, 2021
ASAHI KASEI KABUSHIK KASHA
Daisuke Okamura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Porous membrane and process for producing porous membrane
Patent number
10,974,204
Issue date
Apr 13, 2021
Asahi Kasei Kabushiki Kaisha
Yuki Miki
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Porous hollow fiber membrane, method for producing same, and water...
Patent number
10,751,671
Issue date
Aug 25, 2020
Asahi Kasei Kabushiki Kaisha
Daisuke Okamura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Multiporous hollow-fiber membrane and process for producing multipo...
Patent number
10,023,709
Issue date
Jul 17, 2018
ASAHI KASEI CHEMICALS CORPORATION
Yuki Miki
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Wastewater treatment method
Patent number
8,097,161
Issue date
Jan 17, 2012
ASAHI KASEI CHEMICALS CORPORATION
Daisuke Okamura
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Hollow fiber membrane cartridge
Patent number
7,704,394
Issue date
Apr 27, 2010
ASAHI KASEI CHEMICALS CORPORATION
Tomotaka Hashimoto
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Membrane cartridge, membrane separating device, and membrane separa...
Patent number
7,578,940
Issue date
Aug 25, 2009
ASAHI KASEI CHEMICALS CORPORATION
Tomotaka Hashimoto
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR WASHING HOLLOW FIBER MEMBRANE MODULE
Publication number
20240009628
Publication date
Jan 11, 2024
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD FOR WASHING HOLLOW FIBER MEMBRANE MODULE
Publication number
20230271140
Publication date
Aug 31, 2023
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD OF FILTRATION USING POROUS MEMBRANES
Publication number
20220001335
Publication date
Jan 6, 2022
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD OF FILTRATION USING POROUS MEMBRANES
Publication number
20200353420
Publication date
Nov 12, 2020
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
POROUS HOLLOW FIBER MEMBRANE, METHOD FOR PRODUCING SAME, AND WATER...
Publication number
20200346173
Publication date
Nov 5, 2020
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
FILTRATION METHOD USING POROUS MEMBRANE
Publication number
20200215492
Publication date
Jul 9, 2020
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
POROUS HOLLOW FIBER MEMBRANE, METHOD FOR PRODUCING POROUS HOLLOW FI...
Publication number
20200206693
Publication date
Jul 2, 2020
ASAHI KASEI KABUSHIKI KAISHA
Daisuke OKAMURA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
HOLLOW FIBER MEMBRANE MODULE AND FILTERING METHOD
Publication number
20200171438
Publication date
Jun 4, 2020
ASAHI KASEI KABUSHIKI KAISHA
Shigenori KASAI
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
POROUS HOLLOW FIBER MEMBRANE AND METHOD FOR PRODUCING POROUS HOLLOW...
Publication number
20190314767
Publication date
Oct 17, 2019
ASAHI KASEI KABUSHIKI KAISHA
Yuki MIKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POROUS MEMBRANE AND PROCESS FOR PRODUCING POROUS MEMBRANE
Publication number
20190247801
Publication date
Aug 15, 2019
Asahi Kasei Kabushiki Kaisha
Yuki MIKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POROUS HOLLOW FIBER MEMBRANE, METHOD FOR PRODUCING THE SAME, AND FI...
Publication number
20190022601
Publication date
Jan 24, 2019
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POROUS HOLLOW FIBER MEMBRANE, METHOD FOR PRODUCING SAME, AND WATER...
Publication number
20160325237
Publication date
Nov 10, 2016
Asahi Kasei Kabushiki Kaisha
Daisuke OKAMURA
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
MULTIPOROUS HOLLOW-FIBER MEMBRANE AND PROCESS FOR PRODUCING MULTIPO...
Publication number
20160039987
Publication date
Feb 11, 2016
ASAHI KASEI CHEMICALS CORPORATION
Yuki MIKI
B32 - LAYERED PRODUCTS
Information
Patent Application
CLEANING PROCESS FOR IMMERSION-TYPE SEPARATING MEMBRANE DEVICE, AND...
Publication number
20120168374
Publication date
Jul 5, 2012
ASAHI KASEI CHEMICALS CORPORATION
Daisuke Okamura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
ADDITIVE USED IN A MEMBRANE-SEPARATION ACTIVATED SLUDGE PROCESS
Publication number
20120160767
Publication date
Jun 28, 2012
National University Corporation Nagoya Institute of Technology
Daisuke Okamura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
METHOD OF TREATING WASTEWATER
Publication number
20100282671
Publication date
Nov 11, 2010
ASAHI KASEI CHEMICALS CORPORATION
Daisuke Okamura
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Wastewater treatment method
Publication number
20090308809
Publication date
Dec 17, 2009
Daisuke Okamura
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Hollow Fiber Membrane Cartridge
Publication number
20080116128
Publication date
May 22, 2008
Tomotaka Hashimoto
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Application
Membrane cartridge, membrane separating device, and membrane separa...
Publication number
20060157400
Publication date
Jul 20, 2006
Tomotaka Hashimoto
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL