Seiji Yamada

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Nonvolatile semiconductor memory device and its manufacturing method
- Patent number 6,828,622
- Issue date Dec 7, 2004
- Kabushiki Kaisha Toshiba
- Shota Kitamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
NOR-type flash memory and method for manufacturing the same
- Patent number 6,441,427
- Issue date Aug 27, 2002
- Kabushiki Kaisha Toshiba
- Seiji Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Non-volatile semiconductor memory having column sub-selector layout...
- Patent number 6,256,227
- Issue date Jul 3, 2001
- Kabushiki Kaisha Toshiba
- Shigeru Atsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory in which the number of programming...
- Patent number 6,222,773
- Issue date Apr 24, 2001
- Kabushiki Kaisha Toshiba
- Tooru Tanzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory in which the number of programming...
- Patent number 6,118,697
- Issue date Sep 12, 2000
- Kabushiki Kaisha Toshiba
- Tooru Tanzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for screening a nonvolatile semiconductor memo...
- Patent number 5,754,558
- Issue date May 19, 1998
- Kabushiki Kaisha Toshiba
- Toshiyuki Hayakawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having data erasing mechanism
- Patent number 5,751,636
- Issue date May 12, 1998
- Kabushiki Kaisha Toshiba
- Kiyomi Naruke
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor memory device having data erasing mechanism
- Patent number 5,623,445
- Issue date Apr 22, 1997
- Kabushiki Kaisha Toshiba
- Kiyomi Naruke
- G11 - INFORMATION STORAGE
Information Patent Grant
Semiconductor device having a multi-layer channel structure
- Patent number 5,586,073
- Issue date Dec 17, 1996
- Kabushiki Kaisha Toshiba
- Yohei Hiura
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of operating a nonvolatile semiconductor memory device
- Patent number 5,452,248
- Issue date Sep 19, 1995
- Kabushiki Kaisha Toshiba
- Kiyomi Naruke
- G11 - INFORMATION STORAGE
Information Patent Grant
Device method for manufacturing a semiconductor memory
- Patent number 5,432,109
- Issue date Jul 11, 1995
- Kabushiki Kaisha Toshiba
- Seiji Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of erasing information in memory cells
- Patent number 5,422,843
- Issue date Jun 6, 1995
- Kabushiki Kaisha Toshiba
- Seiji Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Nonvolatile semiconductor memory device
- Patent number 5,349,553
- Issue date Sep 20, 1994
- Kabushiki Kaisha Toshiba
- Seiji Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing non-volatile semiconductor memory device
- Patent number 5,208,173
- Issue date May 4, 1993
- Kabushiki Kaisha Toshiba
- Seiji Yamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of applying a program voltage for a non-volatile semiconduct...
- Patent number 5,068,827
- Issue date Nov 26, 1991
- Kabushiki Kaisha Toshiba
- Seiji Yamada
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Nonvolatile semiconductor memory device and its manufacturing method
- Publication number 20050059212
- Publication date Mar 17, 2005
- Kabushiki Kaisha Toshiba
- Shota Kitamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND ITS MANUFACTURING METHOD
- Publication number 20020003253
- Publication date Jan 10, 2002
- SHOTA KITAMURA
- H01 - BASIC ELECTRIC ELEMENTS

Seiji Yamada

Person

Patents Grantslast 30 patents

Nonvolatile semiconductor memory device and its manufacturing method

NOR-type flash memory and method for manufacturing the same

Non-volatile semiconductor memory having column sub-selector layout...

Nonvolatile semiconductor memory in which the number of programming...

Nonvolatile semiconductor memory in which the number of programming...

Method and apparatus for screening a nonvolatile semiconductor memo...

Semiconductor memory device having data erasing mechanism

Semiconductor memory device having data erasing mechanism

Semiconductor device having a multi-layer channel structure

Method of operating a nonvolatile semiconductor memory device

Device method for manufacturing a semiconductor memory

Method of erasing information in memory cells

Nonvolatile semiconductor memory device

Method of manufacturing non-volatile semiconductor memory device

Method of applying a program voltage for a non-volatile semiconduct...

Patents Applicationslast 30 patents

Nonvolatile semiconductor memory device and its manufacturing method

NONVOLATILE SEMICONDUCTOR MEMORY DEVICE AND ITS MANUFACTURING METHOD