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Kei Kurosawa
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Tokyo, JP
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last 30 patents
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Patent Grant
Method of making trench type dynamic random access memory device
Patent number
5,106,774
Issue date
Apr 21, 1992
Kabushiki Kaisha Toshiba
Katsuhiko Hieda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device with stacked capacitor structure and th...
Patent number
4,951,175
Issue date
Aug 21, 1990
Kabushiki Kaisha Toshiba
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing an electrical connection between conductor...
Patent number
4,874,719
Issue date
Oct 17, 1989
Kabushiki Kaisha Toshiba
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing a semiconductor device
Patent number
4,505,025
Issue date
Mar 19, 1985
Tokyo Shibaura Denki Kabushiki Kaisha
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making field oxide regions
Patent number
4,504,333
Issue date
Mar 12, 1985
Tokyo Shibaura Denki Kabushiki Kaisha
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing semiconductor device by controlling thickn...
Patent number
4,497,108
Issue date
Feb 5, 1985
Tokyo Shibaura Denki Kabushiki Kaisha
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of forming planar isolation regions having field inversion r...
Patent number
4,472,874
Issue date
Sep 25, 1984
Tokyo Shibaura Denki Kabushiki Kaisha
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for manufacturing semiconductor device
Patent number
4,407,851
Issue date
Oct 4, 1983
Tokyo Shibaura Denki Kabushiki Kaisha
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for producing semiconductor device
Patent number
4,371,407
Issue date
Feb 1, 1983
Tokyo Shibaura Denki Kabushiki Kaisha
Kei Kurosawa
H01 - BASIC ELECTRIC ELEMENTS