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Tsutomu Nakamura
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Itami, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Pitch fiber bundle and pitch type carbon fiber bundle and method fo...
Patent number
6,524,501
Issue date
Feb 25, 2003
Nippon Steel Corporation
Yutaka Arai
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Pitch fiber bundle and pitch type carbon fiber bundle and method fo...
Patent number
6,187,434
Issue date
Feb 13, 2001
Nippon Steel Corporation
Yutaka Arai
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
Process for manufacturing pitch-type carbon fiber
Patent number
5,968,435
Issue date
Oct 19, 1999
Nippon Steel Corporation
Osamu Kato
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information
Patent Grant
High strength bonding tool and a process for production of the same
Patent number
5,934,542
Issue date
Aug 10, 1999
Sumitomo Electric Industries, Inc.
Tsutomu Nakamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Diamond sintered body having high strength and high wear-resistance...
Patent number
5,759,216
Issue date
Jun 2, 1998
Sumitomo Electric Industries, Ltd.
Yasuyuki Kanada
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
High strength bonding tool and a process for the production of the...
Patent number
5,653,376
Issue date
Aug 5, 1997
Sumitomo Electric Industries, Inc.
Tsutomu Nakamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Polycrystalline diamond heat sink having major surfaces electricall...
Patent number
5,495,126
Issue date
Feb 27, 1996
Sumitomo Electric Industries, Ltd.
Takahisa Iguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Polycrystalline diamond cutting tool and method of manufacturing th...
Patent number
5,366,522
Issue date
Nov 22, 1994
Sumitomo Electric Industries, Ltd.
Tsutomu Nakamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Heat radiating component and semiconductor device provided with the...
Patent number
5,299,214
Issue date
Mar 29, 1994
Sumitomo Electric Industries, Ltd.
Tsutomu Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing a diamond heat sink
Patent number
5,294,381
Issue date
Mar 15, 1994
Sumitomo Electric Industries, Ltd.
Takahisa Iguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Bonding tool
Patent number
5,197,651
Issue date
Mar 30, 1993
Sumitomo Electric Industries, Ltd.
Tsutomu Nakamura
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Cutting tool of polycrystalline diamond and method of manufacturing...
Patent number
5,178,645
Issue date
Jan 12, 1993
Sumitomo Electric Industries, Ltd.
Tsutomu Nakamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Polycrystal diamond fluted tool and a process for the production of...
Patent number
5,020,394
Issue date
Jun 4, 1991
Sumitomo Electric Industries, Ltd.
Tsutomu Nakamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hard diamond sintered body and the method for producing the same
Patent number
4,610,699
Issue date
Sep 9, 1986
Sumitomo Electric Industries, Ltd.
Shuji Yazu
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Method for manufacturing pitch-based carbon fiber
Publication number
20030025229
Publication date
Feb 6, 2003
Yutaka Arai
D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING