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TOKYO, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for recovering platinum group metals
Patent number
11,866,802
Issue date
Jan 9, 2024
Dowa Metals & Mining Co., Ltd.
Minoru Kawasaki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of recovering PGM
Patent number
9,175,365
Issue date
Nov 3, 2015
Dowa Metals & Mining Co., Ltd.
Yuzuru Nakamura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of recovering platinum group elements
Patent number
9,115,418
Issue date
Aug 25, 2015
Tanaka Kikinzoku Kogyo K.K.
Yuzuru Nakamura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Arsenic-containing solid and method for producing it
Patent number
8,465,723
Issue date
Jun 18, 2013
Dowa Metals & Mining Co., Ltd.
Tetsuo Fujita
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Scorodite-type iron-arsenic compound particles, production method t...
Patent number
8,388,927
Issue date
Mar 5, 2013
Dowa Metals & Mining Co., Ltd.
Kenichi Inoue
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Apparatus for recovering platinum group elements
Patent number
8,366,991
Issue date
Feb 5, 2013
Dowa Metals & Mining Co., Ltd.
Koji Yamada
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of processing copper arsenic compound
Patent number
8,110,162
Issue date
Feb 7, 2012
Dowa Metals & Mining Co., Ltd.
Mitsuo Abumiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of processing diarsenic trioxide
Patent number
8,097,228
Issue date
Jan 17, 2012
Dowa Metals & Mining Co., Ltd.
Mitsuo Abumiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of processing non-ferrous smelting intermediates containing...
Patent number
8,092,765
Issue date
Jan 10, 2012
Dowa Metals & Mining Co., Ltd.
Mitsuo Abumiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of processing non-ferrous smelting intermediate containing a...
Patent number
8,092,764
Issue date
Jan 10, 2012
Dowa Metals & Mining Co., Ltd.
Mitsuo Abumiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Iron arsenate powder
Patent number
8,075,868
Issue date
Dec 13, 2011
Dowa Metals & Mining Co., Ltd.
Tetsuo Fujita
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method and apparatus for recovering platinum group elements
Patent number
7,815,706
Issue date
Oct 19, 2010
Dowa Metals & Mining Co., Ltd.
Koji Yamada
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of producing iron-arsenic compound excellent in crystallinity
Patent number
7,695,698
Issue date
Apr 13, 2010
Dowa Metals & Mining Co., Ltd.
Tetsuo Fujita
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for recovering indium from indium-containing material
Patent number
7,604,786
Issue date
Oct 20, 2009
Dowa Metals & Mining Co., Ltd.
Nobuaki Kita
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR RECOVERING PLATINUM GROUP METALS
Publication number
20230045764
Publication date
Feb 9, 2023
DOWA METALS & MINING CO., LTD.
Minoru KAWASAKI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD FOR RECOVERING PGM
Publication number
20220259697
Publication date
Aug 18, 2022
Waseda University
Keiichi SUGAWARA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HOMOGENIZATION METHOD FOR Cu ALLOY COMPRISING Ru
Publication number
20170051380
Publication date
Feb 23, 2017
TANAKA KIKINZOKU KOGYO K.K.
Katsunori YAMAGUCHI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF RECOVERING PLATINUM GROUP ELEMENTS
Publication number
20140150608
Publication date
Jun 5, 2014
DOWA METALS & MINING CO., LTD.
Yuzuru Nakamura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF RECOVERING PGM
Publication number
20140053687
Publication date
Feb 27, 2014
DOWA METALS & MINING CO., LTD.
Yuzuru Nakamura
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
IRON ARSENATE POWDER
Publication number
20110027167
Publication date
Feb 3, 2011
DOWA METALS & MINING CO., LTD.
Tetsuo Fujita
C01 - INORGANIC CHEMISTRY
Information
Patent Application
APPARATUS FOR RECOVERING PLATINUM GROUP ELEMENTS
Publication number
20110001279
Publication date
Jan 6, 2011
DOWA METALS & MINING CO., LTD.
Koji Yamada
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF ALKALI PROCESSING SUBSTANCE CONTAINING ARSENIC
Publication number
20100215570
Publication date
Aug 26, 2010
DOWA METALS & MINING CO., LTD.
Mitsuo Abuyima
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method Of Processing Non-Ferrous Smelting Intermediates Containing...
Publication number
20100196231
Publication date
Aug 5, 2010
DOWA METALS & MINING CO., LTD.
Mitsuo Abumiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF PROCESSING NON-FERROUS SMELTING INTERMEDIATE CONTAINING A...
Publication number
20100196230
Publication date
Aug 5, 2010
DOWA METALS & MINING CO., LTD.
Mitsuo Abumiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
METHOD OF PROCESSING COPPER ARSENIC COMPOUND
Publication number
20100175509
Publication date
Jul 15, 2010
DOWA METALS & MINING CO., LTD.
Mitsuo Abumiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
IRON ARSENATE POWDER
Publication number
20090291307
Publication date
Nov 26, 2009
DOWA METALS & MINING CO., LTD.
Tetsuo Fujita
C01 - INORGANIC CHEMISTRY
Information
Patent Application
Method for recovering indium from indium-containing material
Publication number
20080081009
Publication date
Apr 3, 2008
DOWA METALS & MINING CO., LTD.
Nobuaki Kita
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
Method for treating arsenic containing solution
Publication number
20070253877
Publication date
Nov 1, 2007
Dowa Metals & Mining Co., Ltd.
Tetsuo Fujita
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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