Tsutomu Nakashima

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical unit and projection-type image display apparatus using the...
- Patent number 7,255,444
- Issue date Aug 14, 2007
- Hitachi, Ltd.
- Tsutomu Nakashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection type image display apparatus using reflective image disp...
- Patent number 7,246,907
- Issue date Jul 24, 2007
- Hitachi, Ltd.
- Taro Imahase
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical unit and projection type image display unit using it
- Patent number 7,241,015
- Issue date Jul 10, 2007
- Hitachi, Ltd.
- Koji Hirata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection type image display device, rear projection type image di...
- Patent number 7,237,901
- Issue date Jul 3, 2007
- Hitachi, Ltd.
- Koji Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical unit and a projection image display apparatus using the same
- Patent number 7,222,965
- Issue date May 29, 2007
- Hitachi, Ltd.
- Masahiko Yatsu
- G02 - OPTICS
Information Patent Grant
Projector optical unit, projection type image display apparatus, an...
- Patent number 7,210,797
- Issue date May 1, 2007
- Hitachi, Ltd.
- Koji Hirata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection type image display apparatus
- Patent number 7,090,351
- Issue date Aug 15, 2006
- Hitachi, Ltd.
- Taro Imahase
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Quarter wavelength plate and projection type video display device u...
- Patent number 7,092,056
- Issue date Aug 15, 2006
- Hitachi, Ltd.
- Kazuo Shikita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection type image display apparatus
- Patent number 7,066,600
- Issue date Jun 27, 2006
- Hitachi, Ltd.
- Tsutomu Nakashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Quarter wavelength plate and projection type video display device u...
- Patent number 6,982,772
- Issue date Jan 3, 2006
- Hitachi, Ltd.
- Kazuo Shikita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection type image display apparatus
- Patent number 6,910,773
- Issue date Jun 28, 2005
- Hitachi, Ltd.
- Tsutomu Nakashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection type image display apparatus
- Patent number 6,893,131
- Issue date May 17, 2005
- Hitachi, Ltd.
- Taro Imahase
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection display
- Patent number 6,854,851
- Issue date Feb 15, 2005
- Hitachi, Ltd.
- Futoshi Yamasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Projection type image display apparatus using reflective image disp...
- Publication number 20060256290
- Publication date Nov 16, 2006
- Hitachi, Ltd
- Taro Imahase
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical unit and pojection type image display unit using it
- Publication number 20060126020
- Publication date Jun 15, 2006
- Hitachi Ltd.,
- Koji Hirata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Quarter wavelength plate and projection type video display device u...
- Publication number 20060017888
- Publication date Jan 26, 2006
- Hitachi, Ltd
- Kazuo Shikita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projection type image display apparatus
- Publication number 20050237489
- Publication date Oct 27, 2005
- Hitachi, Ltd
- Tsutomu Nakashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical unit and projection-type image display apparatus using the...
- Publication number 20050213043
- Publication date Sep 29, 2005
- Hitachi, Ltd
- Tsutomu Nakashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projection type image display apparatus
- Publication number 20050185144
- Publication date Aug 25, 2005
- Hitachi, Ltd
- Taro Imahase
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical unit and a projection image display apparatus using the same
- Publication number 20050140931
- Publication date Jun 30, 2005
- Hitachi, Ltd
- Masahiko Yatsu
- G02 - OPTICS
Information Patent Application
Projection type image display device, rear projection type image di...
- Publication number 20050140926
- Publication date Jun 30, 2005
- Koji Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projector optical unit, projection type image display apparatus, an...
- Publication number 20050036120
- Publication date Feb 17, 2005
- Hitachi, Ltd
- Koji Hirata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projection type image display apparatus
- Publication number 20040109143
- Publication date Jun 10, 2004
- Taro Imahase
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projection display
- Publication number 20040080722
- Publication date Apr 29, 2004
- Hitachi, Ltd.
- Futoshi Yamasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projection type image display apparatus
- Publication number 20040066492
- Publication date Apr 8, 2004
- Tsutomu Nakashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Quarter wavelength plate and projection type video display device u...
- Publication number 20030174290
- Publication date Sep 18, 2003
- Hitachi, Ltd
- Kazuo Shikita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tsutomu Nakashima

Person

Patents Grantslast 30 patents

Optical unit and projection-type image display apparatus using the...

Projection type image display apparatus using reflective image disp...

Optical unit and projection type image display unit using it

Projection type image display device, rear projection type image di...

Optical unit and a projection image display apparatus using the same

Projector optical unit, projection type image display apparatus, an...

Projection type image display apparatus

Quarter wavelength plate and projection type video display device u...

Projection type image display apparatus

Quarter wavelength plate and projection type video display device u...

Projection type image display apparatus

Projection type image display apparatus

Projection display

Patents Applicationslast 30 patents

Projection type image display apparatus using reflective image disp...

Optical unit and pojection type image display unit using it

Quarter wavelength plate and projection type video display device u...

Projection type image display apparatus

Optical unit and projection-type image display apparatus using the...

Projection type image display apparatus

Optical unit and a projection image display apparatus using the same

Projection type image display device, rear projection type image di...

Projector optical unit, projection type image display apparatus, an...

Projection type image display apparatus

Projection display

Projection type image display apparatus

Quarter wavelength plate and projection type video display device u...