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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Composite and method for producing the same
Patent number
6,500,557
Issue date
Dec 31, 2002
Ishizuka Research Institute, Ltd.
Mitsue Koizumi
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Composite and method for producing the same
Patent number
6,451,249
Issue date
Sep 17, 2002
Ishizuka Research Institute, Ltd.
Mitsue Koizumi
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Diamond-containing stratified composite material and method of manu...
Patent number
6,432,150
Issue date
Aug 13, 2002
The Ishizuka Research Institute, Ltd.
Evgeny Alexandrovich Levashov
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Hydrophilic diamond particles and method of producing the same
Patent number
6,337,060
Issue date
Jan 8, 2002
The Ishizuka Research Institute, Ltd.
Akio Hiraki
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Electrode rod for spark deposition, process for the production ther...
Patent number
6,336,950
Issue date
Jan 8, 2002
The Ishizuka Research Institute Ltd.
Mitsue Koizumi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Super-abrasive grain-containing composite material and method of ma...
Patent number
6,171,709
Issue date
Jan 9, 2001
The Ishizuka Research Institute, Ltd.
Mitsue Koizumi
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of producing diamond of controlled quality and product produ...
Patent number
5,882,740
Issue date
Mar 16, 1999
Ishizuka Research Institute Ltd.
Chia-Fu Chen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of producing diamond of controlled quality
Patent number
5,510,157
Issue date
Apr 23, 1996
Ishizuka Research Institute, Ltd.
Chia-Fu Chen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Diamond abrasive and method for producing the same
Patent number
5,061,292
Issue date
Oct 29, 1991
The Ishizuka Research Institute, Ltd.
Chia-Fu Chen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Polishing machine using super abrasive grains
Patent number
4,854,083
Issue date
Aug 8, 1989
The Ishizuka Research Institute
Hiroshi Ishizuka
B24 - GRINDING POLISHING
Information
Patent Grant
Diamond composite and method for producing the same
Patent number
4,844,988
Issue date
Jul 4, 1989
The Ishizuka Research Institute, Ltd.
Hiroshi Ishizuka
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method of producing a composite compact of cBN and WC-Co
Patent number
4,596,693
Issue date
Jun 24, 1986
The Ishizuka Research Institute Ltd.
Hiroshi Ishizuka
B22 - CASTING POWDER METALLURGY