Hiroyuki Miyashita

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Halftone phase shift photomask, halftone phase shift photomask blan...
- Patent number 5,916,712
- Issue date Jun 29, 1999
- Dai Nippon Printing Co., Ltd.
- Hiroyuki Miyashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Halftone phase shift photomask, halftone phase shift photomask blan...
- Patent number 5,738,959
- Issue date Apr 14, 1998
- Dai Nippon Printing Co., Ltd.
- Hiroyuki Miyashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phase shift photomask and phase shift photomask dry etching method
- Patent number 5,723,234
- Issue date Mar 3, 1998
- Dai Nippon Printing Co., Ltd.
- Toshifumi Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blanks for halftone phase shift photomasks, halftone phase shift ph...
- Patent number 5,721,075
- Issue date Feb 24, 1998
- Dai Nippon Printing Co., Ltd.
- Keiji Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phase shift photomask, phase shift photomask blank, and process for...
- Patent number 5,702,847
- Issue date Dec 30, 1997
- Dai Nippon Printing Co., Ltd.
- Norihiro Tarumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phase shift layer-containing photomask, and its production and corr...
- Patent number 5,688,617
- Issue date Nov 18, 1997
- Dai Nippon Printing Co., Ltd.
- Koichi Mikami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blanks for halftone phase shift photomasks, halftone phase shift ph...
- Patent number 5,614,335
- Issue date Mar 25, 1997
- Dai Nippon Printing Co., Ltd.
- Keiji Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phase shift layer-containing photomask, and its production and corr...
- Patent number 5,614,336
- Issue date Mar 25, 1997
- Dai Nippon Printing Co., Ltd.
- Koichi Mikami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Halftone phase shift photomask comprising a single layer of halfton...
- Patent number 5,604,060
- Issue date Feb 18, 1997
- Dai Nippon Printing Co., Ltd.
- Hiroyuki Miyashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Overlying shifter type phase shift photomask blank, overlying shift...
- Patent number 5,576,123
- Issue date Nov 19, 1996
- Dai Nippon Printing Co., Ltd.
- Hiroshi Mohri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blanks for phase shift photomasks, and phase shift photomasks
- Patent number 5,561,009
- Issue date Oct 1, 1996
- Dai Nippon Printing Co., Ltd.
- Hiroshi Mohri
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Halftone phase shift photomask, halftone phase shift photomask blan...
- Patent number 5,538,816
- Issue date Jul 23, 1996
- Dai Nippon Printing Co., Ltd.
- Keiji Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phase shift photomask comprising a layer of aluminum oxide with mag...
- Patent number 5,380,608
- Issue date Jan 10, 1995
- Dai Nippon Printing Co., Ltd.
- Hiroyuki Miyashita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Hiroyuki Miyashita

Person

Patents Grantslast 30 patents

Halftone phase shift photomask, halftone phase shift photomask blan...

Halftone phase shift photomask, halftone phase shift photomask blan...

Phase shift photomask and phase shift photomask dry etching method

Blanks for halftone phase shift photomasks, halftone phase shift ph...

Phase shift photomask, phase shift photomask blank, and process for...

Phase shift layer-containing photomask, and its production and corr...

Blanks for halftone phase shift photomasks, halftone phase shift ph...

Phase shift layer-containing photomask, and its production and corr...

Halftone phase shift photomask comprising a single layer of halfton...

Overlying shifter type phase shift photomask blank, overlying shift...

Blanks for phase shift photomasks, and phase shift photomasks

Halftone phase shift photomask, halftone phase shift photomask blan...

Phase shift photomask comprising a layer of aluminum oxide with mag...