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Kenji Shimokawa
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Chiba, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Ball transferring method and apparatus
Patent number
7,285,486
Issue date
Oct 23, 2007
Nippon Steel Materials Co., Ltd.
Kenji Shimokawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for fabricating a semiconductor devices provided with low me...
Patent number
7,045,389
Issue date
May 16, 2006
Nippon Steel Corporation
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device provided with low melting point metal bumps
Patent number
7,045,388
Issue date
May 16, 2006
Nippon Steel Corporation
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ball transferring method and apparatus
Patent number
6,916,731
Issue date
Jul 12, 2005
Nippon Steel Corporation
Kenji Shimokawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Spherical semiconductor device and method for fabricating the same
Patent number
6,909,182
Issue date
Jun 21, 2005
Nippon Steel Corporation
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of partially plating substrate for electronic devices
Patent number
6,884,708
Issue date
Apr 26, 2005
Nippon Steel Corporation
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Ball-arranging substrate for forming bump, ball-arranging head, bal...
Patent number
6,571,007
Issue date
May 27, 2003
Nippon Steel Corporation
Kenji Shimokawa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Spherical semiconductor device and method for fabricating the same
Patent number
6,509,645
Issue date
Jan 21, 2003
Nippon Steel Corporation
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transfer of flux onto electrodes and production of bumps on electrodes
Patent number
5,899,376
Issue date
May 4, 1999
Nippon Steel Corporation
Kouhei Tatumi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Production of small metal bumps
Patent number
5,765,744
Issue date
Jun 16, 1998
Nippon Steel Corporation
Kouhei Tatumi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Magneto-optical recording medium, disk and method of manufacturing...
Patent number
5,702,793
Issue date
Dec 30, 1997
Nippon Steel Corporation
Kenji Shimokawa
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Garnet polycrystalline film for magneto-optical recording medium
Patent number
5,501,913
Issue date
Mar 26, 1996
Nippon Steel Corporation
Kenji Shimokawa
B82 - NANO-TECHNOLOGY
Patents Applications
last 30 patents
Information
Patent Application
Ball transferring method and apparatus
Publication number
20080032495
Publication date
Feb 7, 2008
Nippon Steel Materials Co., Ltd.
Kenji Shimokawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Ball transferring method and apparatus
Publication number
20050176176
Publication date
Aug 11, 2005
NIPPON STEEL CORPORATION
Kenji Shimokawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
SPHERICAL SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
Publication number
20040061224
Publication date
Apr 1, 2004
NIPPON STEEL CORPORATION
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Spherical semiconductor device and method for fabricating the same
Publication number
20030020164
Publication date
Jan 30, 2003
Nippon Steel Corporation
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Ball transferring method and apparatus
Publication number
20020137324
Publication date
Sep 26, 2002
Kenji Shimokawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Spherical semiconductor device and method for fabricating the same
Publication number
20020132462
Publication date
Sep 19, 2002
NIPPON STEEL CORPORATION
Kohei Tatsumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE PROVIDED WITH LOW MELTING POINT METAL BUMPS
Publication number
20020036344
Publication date
Mar 28, 2002
KOHEI TATSUMI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SPHERICAL SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME
Publication number
20020011665
Publication date
Jan 31, 2002
KOHEI TATSUMI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD OF PARTIALLY PLATING SUBSTRATE FOR ELECTRONIC DEVICES
Publication number
20010012683
Publication date
Aug 9, 2001
KOHEI TATSUMI
H01 - BASIC ELECTRIC ELEMENTS