Tadashi Umezawa

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Ome, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sample surface processing method
- Patent number 7,259,104
- Issue date Aug 21, 2007
- Hitachi, Ltd.
- Tetsuo Ono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dynamic random access memory with improved contact arrangements
- Patent number 6,686,619
- Issue date Feb 3, 2004
- Hitachi, Ltd.
- Yoshitaka Nakamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for processing surface of sample
- Patent number 6,660,647
- Issue date Dec 9, 2003
- Hitachi, Ltd.
- Tetsuo Ono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor integrated circuit device and method of manufacturing...
- Patent number 6,329,681
- Issue date Dec 11, 2001
- Yoshitaka Nakamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Process for manufacturing semiconductor integrated circuit device
- Patent number 6,235,620
- Issue date May 22, 2001
- Hitachi, Ltd.
- Masayoshi Saito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of treating surface of sample
- Patent number 6,191,045
- Issue date Feb 20, 2001
- Hitachi, Ltd.
- Motohiko Yoshigai
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Sample surface processing method
- Publication number 20040058541
- Publication date Mar 25, 2004
- Tetsuo Ono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Dynamic random access memory with improved contact arrangements
- Publication number 20030211673
- Publication date Nov 13, 2003
- Yoshitaka Nakamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Fabrication method of semiconductor integrated circuit device
- Publication number 20030045113
- Publication date Mar 6, 2003
- Hitachi, Ltd.
- Hiroyuki Enomoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor integrated circuit device and method of manufacturing...
- Publication number 20020123190
- Publication date Sep 5, 2002
- Yoshitaka Nakamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor integrated circuit device and method of manufacturing...
- Publication number 20020047153
- Publication date Apr 25, 2002
- Yoshitaka Nakamura
- H01 - BASIC ELECTRIC ELEMENTS