Yasuji Koshikawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor device
- Patent number 8,411,522
- Issue date Apr 2, 2013
- Elpida Memory, Inc.
- Yasuhiro Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device
- Patent number 8,102,726
- Issue date Jan 24, 2012
- Elpida Memory, Inc.
- Yasuhiro Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Redundancy circuit and semiconductor memory device
- Patent number 8,015,457
- Issue date Sep 6, 2011
- Elpida Memory, Inc.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device, control method therefor, and method fo...
- Patent number 7,940,583
- Issue date May 10, 2011
- Elpida Memory, Inc.
- Yoshiro Riho
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 7,835,213
- Issue date Nov 16, 2010
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device
- Patent number 7,796,456
- Issue date Sep 14, 2010
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having a refresh cycle changing circuit
- Patent number 7,742,356
- Issue date Jun 22, 2010
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device
- Patent number 7,697,360
- Issue date Apr 13, 2010
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having plural memory cell arrays
- Patent number 7,652,904
- Issue date Jan 26, 2010
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 7,613,056
- Issue date Nov 3, 2009
- Elpida Memory, Inc.
- Sumio Ogawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device
- Patent number 7,551,502
- Issue date Jun 23, 2009
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device which controls refresh of a memory arra...
- Patent number 7,471,586
- Issue date Dec 30, 2008
- Elpida Memory, Inc.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor storage device
- Patent number 7,417,908
- Issue date Aug 26, 2008
- Elpida Memory, Inc.
- Sumio Ogawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device
- Patent number 7,301,844
- Issue date Nov 27, 2007
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device that requires refresh operations
- Patent number 7,215,589
- Issue date May 8, 2007
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device and method for manufacturing same
- Patent number 7,187,607
- Issue date Mar 6, 2007
- Elpida Memory, Inc.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor storage device
- Patent number 7,085,187
- Issue date Aug 1, 2006
- Elpida Memory, Inc.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device with refreshment control
- Patent number 7,082,072
- Issue date Jul 25, 2006
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device of hierarchy word type and sub word dri...
- Patent number 7,075,852
- Issue date Jul 11, 2006
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor storage device and method for remedying defects of me...
- Patent number 6,847,563
- Issue date Jan 25, 2005
- Elpida Memory, Inc.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having fewer memory cell plates being a...
- Patent number 6,636,448
- Issue date Oct 21, 2003
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor storage device having redundancy circuit for replacem...
- Patent number 6,515,921
- Issue date Feb 4, 2003
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Clock synchronization semiconductor memory device
- Patent number 6,483,579
- Issue date Nov 19, 2002
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor storage device having redundancy circuit for replacem...
- Patent number 6,452,844
- Issue date Sep 17, 2002
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 6,414,887
- Issue date Jul 2, 2002
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 6,385,095
- Issue date May 7, 2002
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having a test mode decision circuit
- Patent number 6,385,104
- Issue date May 7, 2002
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Clock synchronization semiconductor memory device
- Patent number 6,353,573
- Issue date Mar 5, 2002
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor storage device
- Patent number 6,330,198
- Issue date Dec 11, 2001
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device
- Patent number 6,272,057
- Issue date Aug 7, 2001
- NEC Corporation
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR MODULE
- Publication number 20200357746
- Publication date Nov 12, 2020
- UltraMemory Inc.
- Yasuji KOSHIKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE HAVING MEMORY CELL ARRAY DIVIDED INTO PLURAL M...
- Publication number 20140104916
- Publication date Apr 17, 2014
- Hiromasa NODA
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR DEVICE HAVING MEMORY CELL ARRAY DIVIDED INTO PLURAL M...
- Publication number 20130258742
- Publication date Oct 3, 2013
- Hiromasa NODA
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20120075904
- Publication date Mar 29, 2012
- Elpida Memory, Inc.
- Yasuhiro Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE HAVING MEMORY CELL ARRAY DIVIDED INTO PLURAL M...
- Publication number 20110026290
- Publication date Feb 3, 2011
- Elpida Memory, Inc.
- Hiromasa NODA
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor device
- Publication number 20100124134
- Publication date May 20, 2010
- Elpida Memory, Inc.
- Yasuhiro Matsumoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE
- Publication number 20100054035
- Publication date Mar 4, 2010
- Elpida Memory, Inc.
- Chiaki DONO
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20090201757
- Publication date Aug 13, 2009
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device, control method therefor, and method fo...
- Publication number 20090201753
- Publication date Aug 13, 2009
- ELPIDA MEMORY, INC.
- Yoshiro Riho
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE
- Publication number 20080279020
- Publication date Nov 13, 2008
- Elpida Memory, Inc.
- Sumio Ogawa
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE HAVING PLURAL MEMORY CELL ARRAYS
- Publication number 20080144346
- Publication date Jun 19, 2008
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
Redundancy circuit and semiconductor memory device
- Publication number 20080144410
- Publication date Jun 19, 2008
- ELPIDA MEMORY, INC.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device
- Publication number 20080130394
- Publication date Jun 5, 2008
- Elpida Memory, Inc.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR DEVICE
- Publication number 20080089160
- Publication date Apr 17, 2008
- Elpida Memory, Inc.
- Chiaki DONO
- G11 - INFORMATION STORAGE
Information Patent Application
SEMICONDUCTOR MEMORY DEVICE
- Publication number 20070242546
- Publication date Oct 18, 2007
- Elpida Memory, Inc.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor device
- Publication number 20070008799
- Publication date Jan 11, 2007
- ELPIDA MEMORY, INC.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor device
- Publication number 20060262625
- Publication date Nov 23, 2006
- ELPIDA MEMORY, INC.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor storage device
- Publication number 20060227588
- Publication date Oct 12, 2006
- Elpida Memory, Inc.
- Sumio Ogawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device that requires refresh operations
- Publication number 20060176749
- Publication date Aug 10, 2006
- ELPIDA MEMORY, INC.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor storage device
- Publication number 20050117411
- Publication date Jun 2, 2005
- Elpida Memory, Inc.
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device with refreshment control
- Publication number 20050111282
- Publication date May 26, 2005
- ELPIDA MEMORY, INC.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device of hierarchy word type and sub word dri...
- Publication number 20050088903
- Publication date Apr 28, 2005
- ELPIDA MEMORY, INC.
- Chiaki Dono
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device and method for manufacturing same
- Publication number 20050052928
- Publication date Mar 10, 2005
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor storage device and method for remedying defects of me...
- Publication number 20030103394
- Publication date Jun 5, 2003
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor storage device having redundancy circuit for replacem...
- Publication number 20020122343
- Publication date Sep 5, 2002
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device
- Publication number 20020105635
- Publication date Aug 8, 2002
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device
- Publication number 20010050870
- Publication date Dec 13, 2001
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device
- Publication number 20010033519
- Publication date Oct 25, 2001
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device
- Publication number 20010026967
- Publication date Oct 4, 2001
- Yasuji Koshikawa
- G11 - INFORMATION STORAGE
Information Patent Application
Semiconductor memory device
- Publication number 20010005325
- Publication date Jun 28, 2001
- NEC Corporation
- Makoto Kitayama
- G11 - INFORMATION STORAGE

Yasuji Koshikawa

Person

Patents Grantslast 30 patents

Semiconductor device

Semiconductor device

Redundancy circuit and semiconductor memory device

Semiconductor memory device, control method therefor, and method fo...

Semiconductor memory device

Semiconductor device

Semiconductor memory device having a refresh cycle changing circuit

Semiconductor device

Semiconductor memory device having plural memory cell arrays

Semiconductor memory device

Semiconductor device

Semiconductor memory device which controls refresh of a memory arra...

Semiconductor storage device

Semiconductor device

Semiconductor memory device that requires refresh operations

Semiconductor memory device and method for manufacturing same

Semiconductor storage device

Semiconductor memory device with refreshment control

Semiconductor memory device of hierarchy word type and sub word dri...

Semiconductor storage device and method for remedying defects of me...

Semiconductor memory device having fewer memory cell plates being a...

Semiconductor storage device having redundancy circuit for replacem...

Clock synchronization semiconductor memory device

Semiconductor storage device having redundancy circuit for replacem...

Semiconductor memory device

Semiconductor memory device

Semiconductor memory device having a test mode decision circuit

Clock synchronization semiconductor memory device

Semiconductor storage device

Semiconductor memory device

Patents Applicationslast 30 patents

SEMICONDUCTOR MODULE

SEMICONDUCTOR DEVICE HAVING MEMORY CELL ARRAY DIVIDED INTO PLURAL M...

SEMICONDUCTOR DEVICE HAVING MEMORY CELL ARRAY DIVIDED INTO PLURAL M...

SEMICONDUCTOR DEVICE

SEMICONDUCTOR DEVICE HAVING MEMORY CELL ARRAY DIVIDED INTO PLURAL M...

Semiconductor device

SEMICONDUCTOR MEMORY DEVICE

SEMICONDUCTOR DEVICE

Semiconductor memory device, control method therefor, and method fo...

SEMICONDUCTOR MEMORY DEVICE

SEMICONDUCTOR MEMORY DEVICE HAVING PLURAL MEMORY CELL ARRAYS

Redundancy circuit and semiconductor memory device

Semiconductor memory device

SEMICONDUCTOR DEVICE

SEMICONDUCTOR MEMORY DEVICE

Semiconductor device

Semiconductor device

Semiconductor storage device

Semiconductor memory device that requires refresh operations

Semiconductor storage device

Semiconductor memory device with refreshment control

Semiconductor memory device of hierarchy word type and sub word dri...

Semiconductor memory device and method for manufacturing same

Semiconductor storage device and method for remedying defects of me...

Semiconductor storage device having redundancy circuit for replacem...

Semiconductor memory device

Semiconductor memory device

Semiconductor memory device

Semiconductor memory device

Semiconductor memory device