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Yoshiharu Toshima
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Yamaguchi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Nickel powder, method for preparing the same and paste for use in m...
Patent number
6,939,390
Issue date
Sep 6, 2005
Mitsui Mining & Smelting Co., Ltd.
Yoshiharu Toshima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nickel powder, method for preparation thereof and conductive paste
Patent number
6,632,265
Issue date
Oct 14, 2003
Mitsui Mining & Smelting Co., Ltd.
Takashi Mukuno
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Nickel powder, method for preparing the same and paste for use in m...
Patent number
6,632,524
Issue date
Oct 14, 2003
Mitsui Mining & Smelting Co., Ltd.
Yoshiharu Toshima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Composite nickel fine powder and method for preparing the same
Patent number
6,503,560
Issue date
Jan 7, 2003
Mitsui Mining & Smelting Co., Ltd.
Yoshiharu Toshima
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Nickel powder and conductive paste
Patent number
6,494,931
Issue date
Dec 17, 2002
Mitsui Mining & Smelting Co., Ltd.
Takashi Mukuno
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Composite nickel fine powder
Patent number
6,312,622
Issue date
Nov 6, 2001
Mitsui Mining & Smelting Co., Ltd.
Yoshiharu Toshima
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Nickel fine powder and method for preparing the same
Patent number
6,228,141
Issue date
May 8, 2001
Mitsui Mining & Smelting Co., Ltd.
Takayuki Araki
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Nickel fine powder and method for preparing the same
Patent number
6,162,277
Issue date
Dec 19, 2000
Mitsui Mining & Smelting Co., Ltd.
Yoshiharu Toshima
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for preparing nickel fine powder
Patent number
6,120,576
Issue date
Sep 19, 2000
Mitsui Mining & Smelting Co., Ltd.
Yoshiharu Toshima
B22 - CASTING POWDER METALLURGY
Patents Applications
last 30 patents
Information
Patent Application
Nickel powder, method for preparing the same and paste for use in m...
Publication number
20040000217
Publication date
Jan 1, 2004
Mitsui Mining and Smelting Co., Ltd.
Yoshiharu Toshima
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Surface-modified nickel fine powder
Publication number
20020064638
Publication date
May 30, 2002
MITSUI MINING AND SMELTING CO., LTD
Takayuki Araki
B22 - CASTING POWDER METALLURGY
Information
Patent Application
Composite nickel fine powder and method for preparing the same
Publication number
20020055002
Publication date
May 9, 2002
Mitsui Mining and Smelting Co., Ltd.
Yoshiharu Toshima
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...