Tetsushi Tsukamoto

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Nakakubiki-gun, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photo mask blank and photo mask
- Patent number 7,264,908
- Issue date Sep 4, 2007
- Shin-Etsu Chemical Co., Ltd.
- Hideo Kaneko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Methods of manufacturing photomask blank and photomask
- Patent number 7,195,846
- Issue date Mar 27, 2007
- Shin-Etsu Chemical Co., Ltd.
- Hideo Kaneko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phase shift mask blank and method of manufacture
- Patent number 7,037,625
- Issue date May 2, 2006
- Shin-Etsu Chemical Co., Ltd.
- Hideo Kaneko
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silica glass substrates and their selection
- Patent number 6,928,837
- Issue date Aug 16, 2005
- Shin-Etsu Chemical Co., Ltd.
- Masaki Takeuchi
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Photomask blank and photomask
- Patent number 6,727,027
- Issue date Apr 27, 2004
- Shin-Etsu Chemical Co., Ltd.
- Tetsushi Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Photo mask blank and photo mask
- Publication number 20040229136
- Publication date Nov 18, 2004
- Shin-Etsu Chemical Co., Ltd.
- Hideo Kaneko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Methods of manufacturing photomask blank and photomask
- Publication number 20040110073
- Publication date Jun 10, 2004
- Hideo Kaneko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Phase shift mask blank and method of manufacture
- Publication number 20030008219
- Publication date Jan 9, 2003
- Hideo Kaneko
- B32 - LAYERED PRODUCTS
Information Patent Application
Photomask blank and photomask
- Publication number 20020115003
- Publication date Aug 22, 2002
- Tetsushi Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Silica glass substrates and their selection
- Publication number 20020078710
- Publication date Jun 27, 2002
- Shin-Etsu Chemical Co., Ltd.
- Masaki Takeuchi
- C03 - GLASS MINERAL OR SLAG WOOL