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Sachiko Kamisaki
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Semiconductor device including memory cells that require refresh op...
Patent number
8,503,262
Issue date
Aug 6, 2013
Elpida Memory, Inc.
Keisuke Fujishiro
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor device and data processing system
Patent number
7,944,767
Issue date
May 17, 2011
Elpida Memory, Inc.
Toru Ishikawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Dynamic random access memory device with sense amplifiers serving a...
Patent number
5,528,552
Issue date
Jun 18, 1996
NEC Corporation
Sachiko Kamisaki
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor memory device with flash write mode of operation
Patent number
5,003,510
Issue date
Mar 26, 1991
NEC Corporation
Sachiko Kamisaki
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Semiconductor device including memory cells that require refresh op...
Publication number
20110299352
Publication date
Dec 8, 2011
Elpida Memory, Inc.
Keisuke Fujishiro
G11 - INFORMATION STORAGE
Information
Patent Application
SEMICONDUCTOR DEVICE AND DATA PROCESSING SYSTEM
Publication number
20090316510
Publication date
Dec 24, 2009
Elpida Memory, Inc.
Toru ISHIKAWA
G11 - INFORMATION STORAGE