DOWA ECO-SYSTEM CO., LTD.

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Separation method for valuable resources
- Patent number 12,303,912
- Issue date May 20, 2025
- Dowa Eco-System Co., Ltd.
- Tatsuya Yodose
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method for recovering valuable material from lithium ion secondary...
- Patent number 12,107,244
- Issue date Oct 1, 2024
- Dowa Eco-System Co., Ltd.
- Chihiro Nishikawa
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Method for recovering valuable material from lithium ion secondary...
- Patent number 11,482,737
- Issue date Oct 25, 2022
- Dowa Eco-System Co., Ltd.
- Chihiro Nishikawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Decomposer containing iron particles for organohalogen compound and...
- Patent number 9,969,631
- Issue date May 15, 2018
- DOWA ECO-SYSTEM CO., LTD.
- Taishi Uehara
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Method of producing iron powder for treating halogenated organic co...
- Patent number 9,567,521
- Issue date Feb 14, 2017
- Dowa Eco-System Co., Ltd.
- Taishi Uehara
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Soil cleaning method
- Patent number 9,421,589
- Issue date Aug 23, 2016
- Dowa Eco-System Co., Ltd.
- Shunsuke Yoshi
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Method for recovering valuable material from lithium-ion secondary...
- Patent number 9,359,659
- Issue date Jun 7, 2016
- Dowa Eco-System Co., Ltd.
- Koji Fujita
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method for producing decomposer of organic halogenated compounds
- Patent number 8,034,156
- Issue date Oct 11, 2011
- Dowa Eco-System Co., Ltd.
- Masami Kamada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Decomposer of organic halogenated compounds
- Patent number 7,910,516
- Issue date Mar 22, 2011
- Dowa Eco-Systems Co., Ltd.
- Masami Kamada
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

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Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PROCESSING SOLAR CELL MODULE
- Publication number 20250153229
- Publication date May 15, 2025
- DOWA ECO-SYSTEM CO., LTD.
- Yoshinori MORITA
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
METHOD OF RECOVERING VALUABLE MATERIALS
- Publication number 20250115487
- Publication date Apr 10, 2025
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
RECYCLED CATHODE MATERIAL PRECURSOR, RECYCLED CATHODE MATERIAL, MET...
- Publication number 20240387892
- Publication date Nov 21, 2024
- DOWA ECO-SYSTEM CO., LTD.
- Tatsuya YODOSE
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD OF SEPARATING VALUABLE MATERIALS
- Publication number 20240243381
- Publication date Jul 18, 2024
- DOWA ECO-SYSTEM CO., LTD.
- Masataka YAMASHITA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING VALUABLE MATERIALS FROM LITHIUM ION SECONDARY...
- Publication number 20230411719
- Publication date Dec 21, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING VALUABLE SUBSTANCE
- Publication number 20230366061
- Publication date Nov 16, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING VALUABLE SUBSTANCE
- Publication number 20230323506
- Publication date Oct 12, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
VALUABLE MATTER RECOVERY METHOD
- Publication number 20230318063
- Publication date Oct 5, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Yoji SUGANUMA
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
METHOD FOR CONCENTRATING VALUABLE METAL CONTAINED IN LITHIUM ION SE...
- Publication number 20230119544
- Publication date Apr 20, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Ryoei WATANABE
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METAL RECOVERY METHOD
- Publication number 20230116994
- Publication date Apr 20, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Shota TAHATA
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
METHOD FOR RECOVERING VALUABLE SUBSTANCE
- Publication number 20230107938
- Publication date Apr 6, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING LITHIUM AND METHOD FOR PROCESSING LITHIUM ION...
- Publication number 20230104457
- Publication date Apr 6, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
SEPARATION METHOD FOR VALUABLE RESOURCES
- Publication number 20230083016
- Publication date Mar 16, 2023
- DOWA ECO-SYSTEM CO., LTD.
- Tatsuya YODOSE
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
METHOD FOR SEPARATING LITHIUM
- Publication number 20220396852
- Publication date Dec 15, 2022
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR RECOVERING VALUABLE MATERIAL FROM LITHIUM ION SECONDARY...
- Publication number 20210210806
- Publication date Jul 8, 2021
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR RECOVERING VALUABLE MATERIAL FROM LITHIUM ION SECONDARY...
- Publication number 20210210807
- Publication date Jul 8, 2021
- DOWA ECO-SYSTEM CO., LTD.
- Chihiro NISHIKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD OF PRODUCING IRON POWDER FOR TREATING HALOGENATED ORGANIC CO...
- Publication number 20140030431
- Publication date Jan 30, 2014
- DOWA ECO-SYSTEM CO., LTD.
- Taishi Uehara
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
DECOMPOSER CONTAINING IRON PARTICLES FOR ORGANOHALOGEN COMPOUND AND...
- Publication number 20130175468
- Publication date Jul 11, 2013
- DOWA ECO-SYSTEM CO., LTD.
- Taishi Uehara
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Application
SOIL CLEANING METHOD
- Publication number 20130115004
- Publication date May 9, 2013
- DOWA ECO-SYSTEM CO., LTD.
- Shunsuke Yoshi
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...

DOWA ECO-SYSTEM CO., LTD.

Organization

Patents Grantslast 30 patents

Separation method for valuable resources

Method for recovering valuable material from lithium ion secondary...

Method for recovering valuable material from lithium ion secondary...

Decomposer containing iron particles for organohalogen compound and...

Method of producing iron powder for treating halogenated organic co...

Soil cleaning method

Method for recovering valuable material from lithium-ion secondary...

Method for producing decomposer of organic halogenated compounds

Decomposer of organic halogenated compounds

Patents Applicationslast 30 patents

METHOD FOR PROCESSING SOLAR CELL MODULE

METHOD OF RECOVERING VALUABLE MATERIALS

RECYCLED CATHODE MATERIAL PRECURSOR, RECYCLED CATHODE MATERIAL, MET...

METHOD OF SEPARATING VALUABLE MATERIALS

METHOD FOR RECOVERING VALUABLE MATERIALS FROM LITHIUM ION SECONDARY...

METHOD FOR RECOVERING VALUABLE SUBSTANCE

METHOD FOR RECOVERING VALUABLE SUBSTANCE

VALUABLE MATTER RECOVERY METHOD

METHOD FOR CONCENTRATING VALUABLE METAL CONTAINED IN LITHIUM ION SE...

METAL RECOVERY METHOD

METHOD FOR RECOVERING VALUABLE SUBSTANCE

METHOD FOR RECOVERING LITHIUM AND METHOD FOR PROCESSING LITHIUM ION...

SEPARATION METHOD FOR VALUABLE RESOURCES

METHOD FOR SEPARATING LITHIUM

METHOD FOR RECOVERING VALUABLE MATERIAL FROM LITHIUM ION SECONDARY...

METHOD FOR RECOVERING VALUABLE MATERIAL FROM LITHIUM ION SECONDARY...

METHOD OF PRODUCING IRON POWDER FOR TREATING HALOGENATED ORGANIC CO...

DECOMPOSER CONTAINING IRON PARTICLES FOR ORGANOHALOGEN COMPOUND AND...

SOIL CLEANING METHOD