Masao Kunitou

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory device having multilevel memory cell and metho...
- Patent number 6,479,874
- Issue date Nov 12, 2002
- NEC Corporation
- Kenji Hibino
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of setting threshold voltage levels of a multiple-valued mas...
- Patent number 6,221,723
- Issue date Apr 24, 2001
- NEC Corporation
- Masao Kunitou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing semiconductor memory devices having a ROM...
- Patent number 5,960,287
- Issue date Sep 28, 1999
- NEC Corporation
- Masao Kunitou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process fabricating semiconductor device having two ion-implantatio...
- Patent number 5,854,110
- Issue date Dec 29, 1998
- NEC Corporation
- Masao Kunitou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication method of semiconductor integrated circuit device
- Patent number 5,538,917
- Issue date Jul 23, 1996
- NEC Corporation
- Masao Kunitou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Fabrication method of a read-only semiconductor memory device
- Patent number 5,470,774
- Issue date Nov 28, 1995
- NEC Corporation
- Masao Kunitou
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR MEMORY DEVICE HAVING MULTILEVEL MEMORY CELL AND METHO...
- Publication number 20010042893
- Publication date Nov 22, 2001
- KENJI HIBINO
- H01 - BASIC ELECTRIC ELEMENTS