Naokatsu Suwanai

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor memory circuit device and method for fabricating a se...
- Patent number 6,043,118
- Issue date Mar 28, 2000
- Hitachi, Ltd.
- Naokatsu Suwanai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor integrated circuit device including boron-doped phosp...
- Patent number 5,994,762
- Issue date Nov 30, 1999
- Hitachi, Ltd.
- Naokatsu Suwanai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making a semiconductor memory circuit device
- Patent number 5,631,182
- Issue date May 20, 1997
- Hitachi, Ltd.
- Naokatsu Suwanai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making a semiconductor memory circuit device
- Patent number 5,389,558
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Naokatsu Suwanai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor memory circuit device and method for fabricating same
- Patent number 5,237,187
- Issue date Aug 17, 1993
- Hitachi, Ltd.
- Naokatsu Suwanai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of making semiconductor integrated circuit device with polys...
- Patent number 5,025,741
- Issue date Jun 25, 1991
- Hitachi, Ltd.
- Naokatsu Suwanai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor integrated circuit device including an interlayer ins...
- Publication number 20020003305
- Publication date Jan 10, 2002
- Masashi Umakoshi
- H01 - BASIC ELECTRIC ELEMENTS