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Norifumi Yoshida
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Fukui-ken, JP
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last 30 patents
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Patent Grant
Multi-stage solvent extraction of metal value
Patent number
6,238,566
Issue date
May 29, 2001
Shin-Etsu Chemical Co., Ltd.
Norifumi Yoshida
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method for the preparation of a lanthanum manganite powder
Patent number
5,503,815
Issue date
Apr 2, 1996
Shin-Etsu Chemical Co., Ltd.
Masatoshi Ishii
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Face coat composition for casting mold and method for the preparati...
Patent number
5,492,957
Issue date
Feb 20, 1996
Shin-Etsu Chemical Co., Ltd.
Koji Nishikawa
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for the preparation of spherical particles of a rare earth p...
Patent number
5,415,851
Issue date
May 16, 1995
Shin-Etsu Chemical Co., Ltd.
Yuji Kimura
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for the preparation of coprecipitated carbonate of lanthanum...
Patent number
5,352,426
Issue date
Oct 4, 1994
Shin-Etsu Chemical Co., Ltd.
Yuji Kimura
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Rare earth oxide powder and method for the preparation thereof
Patent number
5,332,558
Issue date
Jul 26, 1994
Shin-Etsu Chemical Co., Ltd.
Masami Kaneyoshi
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Rare earth oxide powder
Patent number
5,286,688
Issue date
Feb 15, 1994
Shin-Etsu Chemical Co., Ltd.
Fumihiko Saito
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for the purification of rare earth oxysulfide
Patent number
5,169,610
Issue date
Dec 8, 1992
Shin-Etsu Chemical Ltd.
Kasuhiro Yamada
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Method for the preparation of single crystals of gadolinium gallium...
Patent number
4,483,734
Issue date
Nov 20, 1984
Shin-Etsu Chemical Co., Ltd.
Susumu Sakaguchi
C30 - CRYSTAL GROWTH