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Shoichi Iwasa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Semiconductor device, a method of manufacturing the semiconductor d...
Patent number
6,917,076
Issue date
Jul 12, 2005
United Microelectronics Corporation
Kohei Eguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having multiple transistors sharing a common gate
Patent number
6,657,229
Issue date
Dec 2, 2003
United Microelectronics Corporation
Kohei Eguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and a method of manufacturing the same
Patent number
6,468,887
Issue date
Oct 22, 2002
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and a MOS transistor for circuit protection
Patent number
6,313,509
Issue date
Nov 6, 2001
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and a method of manufacturing the same
Patent number
6,288,431
Issue date
Sep 11, 2001
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and a method of manufacturing the same
Patent number
6,124,638
Issue date
Sep 26, 2000
United Microelectronics
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device having word line conductors provided at...
Patent number
6,060,350
Issue date
May 9, 2000
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of making a semiconductor device with a stacked cell structure
Patent number
6,051,466
Issue date
Apr 18, 2000
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device having word line conductors provided at...
Patent number
5,959,319
Issue date
Sep 28, 1999
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device including a capacitor responsible for a power...
Patent number
5,814,850
Issue date
Sep 29, 1998
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor storage device
Patent number
5,798,545
Issue date
Aug 25, 1998
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device with memory cells each having transisto...
Patent number
5,747,845
Issue date
May 5, 1998
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device and a method of making the same
Patent number
5,686,746
Issue date
Nov 11, 1997
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing an insulated-gate field-effect transistor i...
Patent number
5,663,103
Issue date
Sep 2, 1997
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor memory device and method for fabricating the same
Patent number
5,644,151
Issue date
Jul 1, 1997
Nippon Steel Corporation
Hirohiko Izumi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrically alterable n-bit per cell non-volatile memory with refe...
Patent number
5,596,527
Issue date
Jan 21, 1997
Nippon Steel Corporation
Yugo Tomioka
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor memory device and method of using the same
Patent number
5,572,464
Issue date
Nov 5, 1996
Nippon Steel Corporation
Shoichi Iwasa
G11 - INFORMATION STORAGE
Information
Patent Grant
Insulated-gate field-effect transistor in a semiconductor device in...
Patent number
5,569,947
Issue date
Oct 29, 1996
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Nonvolatile semiconductor memory device
Patent number
5,530,276
Issue date
Jun 25, 1996
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Non-volatile semiconductor memory device
Patent number
5,471,423
Issue date
Nov 28, 1995
Nippon Steel Corporation
Shoichi Iwasa
G11 - INFORMATION STORAGE
Information
Patent Grant
MOS-type semiconductor device and method of making the same
Patent number
5,436,481
Issue date
Jul 25, 1995
Nippon Steel Corporation
Yuichi Egawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Non-volatile semiconductor memory cell capable of storing more than...
Patent number
5,424,978
Issue date
Jun 13, 1995
Nippon Steel Corporation
Toshio Wada
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of writing into non-volatile semiconductor memory
Patent number
5,418,743
Issue date
May 23, 1995
Nippon Steel Corporation
Yugo Tomioka
G11 - INFORMATION STORAGE
Information
Patent Grant
Semiconductor integrated unit
Patent number
5,396,120
Issue date
Mar 7, 1995
Nippon Steel Corporation
Shoichi Iwasa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Nonvolatile semiconductor memory with raised source and drain
Patent number
5,381,028
Issue date
Jan 10, 1995
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
MOS semiconductor memory device
Patent number
5,329,483
Issue date
Jul 12, 1994
Nippon Steel Corporation
Toshio Wada
G11 - INFORMATION STORAGE
Information
Patent Grant
MOS memory device
Patent number
5,323,342
Issue date
Jun 21, 1994
Nippon Steel Corporation
Toshio Wada
G11 - INFORMATION STORAGE
Information
Patent Grant
Floating gate type electrically programmable read only memory cell...
Patent number
5,291,047
Issue date
Mar 1, 1994
NEC Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and method of manufacturing the same
Patent number
5,278,787
Issue date
Jan 11, 1994
Nippon Steel Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Two-transistor type non-volatile semiconductor memory
Patent number
5,089,866
Issue date
Feb 18, 1992
NEC Corporation
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
SEMICONDUCTOR DEVICE, A METHOD OF MANUFACTURING THE SEMICONDUCTOR D...
Publication number
20050242377
Publication date
Nov 3, 2005
United Microelectronics Corporation
Kohei Eguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Semiconductor device, a method of manufacturing the semiconductor d...
Publication number
20040021160
Publication date
Feb 5, 2004
Kohei Eguchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SEMICONDUCTOR DEVICE AND A METHOD OF MANUFACTURING THE SAME
Publication number
20020125536
Publication date
Sep 12, 2002
NIPPON STEEL CORPORATION
Shoichi Iwasa
H01 - BASIC ELECTRIC ELEMENTS