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Hidetoshi Iwai
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor memory device
Patent number
7,464,315
Issue date
Dec 9, 2008
Elpida Memory, Inc.
Yutaka Ito
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storing method of dynamic RAM and semiconductor memory device
Patent number
7,318,183
Issue date
Jan 8, 2008
Elpida Memory, Inc.
Yutaka Ito
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Data storing method of dynamic RAM and semiconductor memory device
Patent number
7,051,260
Issue date
May 23, 2006
Hitachi, Ltd.
Yutaka Ito
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Semiconductor integrated circuit device
Patent number
6,906,971
Issue date
Jun 14, 2005
Hitachi, Ltd.
Masayuki Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Memory semiconductor device with reduced sense amplifier area
Patent number
6,791,132
Issue date
Sep 14, 2004
Hitachi, Ltd.
Kiyoshi Nakai
G11 - INFORMATION STORAGE
Information
Patent Grant
Data storing method of dynamic RAM and semiconductor memory device
Patent number
6,697,992
Issue date
Feb 24, 2004
Hitachi, Ltd.
Yutaka Ito
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Semiconductor device
Patent number
6,680,501
Issue date
Jan 20, 2004
Hitachi, Ltd.
Yutaka Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated circuit device
Patent number
6,078,084
Issue date
Jun 20, 2000
Hitachi, Ltd.
Masayuki Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated circuit device, and process and apparatus...
Patent number
5,910,010
Issue date
Jun 8, 1999
Hitachi, Ltd.
Hirotaka Nishizawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device with improved substrate arrangement to...
Patent number
5,805,513
Issue date
Sep 8, 1998
Hitachi, Ltd.
Yasushi Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of making mask pattern data and process for manufacturing th...
Patent number
5,736,277
Issue date
Apr 7, 1998
Hitachi, Ltd.
Toshitsugu Takekuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Semiconductor memory device and defective memory cell correction ci...
Patent number
5,689,465
Issue date
Nov 18, 1997
Texas Instruments Incorporated
Shunichi Sukegawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit device
Patent number
5,654,577
Issue date
Aug 5, 1997
Hitachi, Ltd.
Masayuki Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Dynamic memory device, a memory module, and a method of refreshing...
Patent number
5,629,898
Issue date
May 13, 1997
Hitachi, Ltd.
Youji Idei
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of fabrication of semiconductor integrated circuit device
Patent number
5,610,089
Issue date
Mar 11, 1997
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having shield wiring for noise suppression
Patent number
5,594,279
Issue date
Jan 14, 1997
Texas Instruments Incorporated
Yutaka Itou
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making mask pattern data and process for manufacturing th...
Patent number
5,565,285
Issue date
Oct 15, 1996
Hitachi, Ltd.
Toshitsugu Takekuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Semiconductor memory device and defective memory cell correction ci...
Patent number
5,550,394
Issue date
Aug 27, 1996
Texas Instruments Incorporated
Shunichi Sukegawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated circuit device having output and internal...
Patent number
5,534,723
Issue date
Jul 9, 1996
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Transistor layout for semiconductor integrated circuit
Patent number
5,498,897
Issue date
Mar 12, 1996
Texas Instruments Incorporated
Katsuo Komatsuzaki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device having redundant column and operation m...
Patent number
5,485,425
Issue date
Jan 16, 1996
Hitachi, Ltd.
Hidetoshi Iwai
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated device and wiring correction arrangement t...
Patent number
5,483,490
Issue date
Jan 9, 1996
Hitachi, Ltd.
Hidetoshi Iwai
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of making mask pattern data and process for manufacturing th...
Patent number
5,458,998
Issue date
Oct 17, 1995
Hitachi, Ltd.
Toshitsugu Takekuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Semiconductor integrated circuit device having a first MISFET of an...
Patent number
5,436,483
Issue date
Jul 25, 1995
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor integrated circuit device having input protective ele...
Patent number
5,436,484
Issue date
Jul 25, 1995
Hitachi, Ltd.
Hidetoshi Iwai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device with improved substrate arrangement to...
Patent number
5,426,613
Issue date
Jun 20, 1995
Hitachi, Ltd.
Yasushi Takahashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Special mode control method for dynamic random access memory
Patent number
5,410,507
Issue date
Apr 25, 1995
Hitachi, Ltd.
Masanori Tazunoki
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor memory device
Patent number
5,359,561
Issue date
Oct 25, 1994
Hitachi, Ltd.
Shigetoshi Sakomura
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated device and wiring correction arrangement t...
Patent number
5,289,416
Issue date
Feb 22, 1994
Hitachi, Ltd.
Hidetoshi Iwai
G11 - INFORMATION STORAGE
Information
Patent Grant
Resin-encapsulated semiconductor memory device useful for single in...
Patent number
5,287,000
Issue date
Feb 15, 1994
Hitachi, Ltd.
Yasushi Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Data storing method of dynamic RAM and semiconductor memory device
Publication number
20060200729
Publication date
Sep 7, 2006
Yutaka Ito
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Semiconductor memory device
Publication number
20050286330
Publication date
Dec 29, 2005
ELPIDA MEMORY, INC.
Yutaka Ito
G11 - INFORMATION STORAGE
Information
Patent Application
Semiconductor integrated circuit device
Publication number
20040184330
Publication date
Sep 23, 2004
Masayuki Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Data storing method of dynamic RAM and semiconductor memory device
Publication number
20040148557
Publication date
Jul 29, 2004
Hitachi, Ltd.
Yutaka Ito
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Semiconductor device
Publication number
20020134997
Publication date
Sep 26, 2002
Yutaka Ito
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor integrated circuit device
Publication number
20020093843
Publication date
Jul 18, 2002
Hitachi, Ltd.
Kiyoshi Nakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor integrated circuit device
Publication number
20020080669
Publication date
Jun 27, 2002
Masayuki Nakamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Data storing method of dynamic RAM and semiconductor memory device
Publication number
20020018389
Publication date
Feb 14, 2002
Hitachi, Ltd.
Yutaka Ito
G06 - COMPUTING CALCULATING COUNTING