Hiro-o Nakagawa

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Tokyo-to, JP

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Patents Grantslast 30 patents

Information Patent Grant
Photomask with dust-proofing device and exposure method using the same
- Patent number 6,933,082
- Issue date Aug 23, 2005
- Dai Nippon Printing Co., Ltd.
- Toshiaki Motonaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Halftone phase shift photomask and blank for halftone phase shift p...
- Patent number 6,869,736
- Issue date Mar 22, 2005
- Dai Nippon Printing Co., Ltd.
- Hiro-o Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photomask
- Patent number 6,740,455
- Issue date May 25, 2004
- Dainippon Printing Co., Ltd.
- Kenji Noguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Halftone phase shift photomask and blank for halftone phase shift p...
- Patent number 6,599,667
- Issue date Jul 29, 2003
- Dai Nippon Printing Co., Ltd.
- Satoshi Yusa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blank for halftone phase shift photomask and halftone phase shift p...
- Patent number 6,458,496
- Issue date Oct 1, 2002
- Dai Nippon Printing Co., Ltd.
- Toshiaki Motonaga
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
Halftone phase shift photomask and blank for halftone phase shift p...
- Publication number 20030186135
- Publication date Oct 2, 2003
- Hiro-o Nakagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Photomask with dust-proofing device and exposure method using the same
- Publication number 20030087165
- Publication date May 8, 2003
- Toshiaki Motonaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Photomask
- Publication number 20020119379
- Publication date Aug 29, 2002
- Kenji Noguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Halftone phase shift photomask and blank for halftone phase shift p...
- Publication number 20020039689
- Publication date Apr 4, 2002
- Satoshi Yusa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Blank for halftone phase shift photomask and halftone phase shift p...
- Publication number 20010005564
- Publication date Jun 28, 2001
- Toshiaki Motonaga
- B32 - LAYERED PRODUCTS