Kazunari Nakagawa

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semiconductor chip and semiconductor device using the semiconductor...
- Patent number 6,838,773
- Issue date Jan 4, 2005
- Hitachi Maxell, Ltd.
- Yuji Kikuchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Liquid crystal display apparatus and optical device for use therein
- Patent number 6,829,031
- Issue date Dec 7, 2004
- Hitachi, Ltd.
- Toru Numata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection lens system and projection image display apparatus using...
- Patent number 6,801,366
- Issue date Oct 5, 2004
- Hitachi, Ltd.
- Koji Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection lens apparatus and rear projection type image display ap...
- Patent number 6,768,594
- Issue date Jul 27, 2004
- Hitachi, Ltd.
- Daisuke Imafuku
- G02 - OPTICS
Information Patent Grant
Projection lens system and projection image display apparatus using...
- Patent number 6,624,950
- Issue date Sep 23, 2003
- Hitachi, Ltd.
- Koji Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid crystal display apparatus having liquid crystal display elem...
- Patent number 6,535,267
- Issue date Mar 18, 2003
- Hitachi, Ltd.
- Toru Numata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Rear projection display apparatus and translucent screen for use th...
- Patent number 6,502,942
- Issue date Jan 7, 2003
- Hitachi, Ltd.
- Shigeru Mori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection lens system and projection image display apparatus using...
- Patent number 6,396,641
- Issue date May 28, 2002
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Projection image display apparatus
- Patent number 6,342,929
- Issue date Jan 29, 2002
- Hitachi, Ltd.
- Koji Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid crystal display apparatus and optical device for use therein
- Patent number 6,256,083
- Issue date Jul 3, 2001
- Hitachi, Ltd.
- Toru Numata
- G02 - OPTICS
Information Patent Grant
Projection lens system and projection image display apparatus using...
- Patent number 6,243,211
- Issue date Jun 5, 2001
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Projection image display apparatus
- Patent number 6,115,081
- Issue date Sep 5, 2000
- Hitachi, Ltd.
- Koji Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection lens system and projection image display apparatus using...
- Patent number 6,046,860
- Issue date Apr 4, 2000
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Projection lens system and projection image display apparatus using...
- Patent number 5,946,142
- Issue date Aug 31, 1999
- Hitachi Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Grant
Rear projection type image display apparatus
- Patent number 5,808,704
- Issue date Sep 15, 1998
- Hitachi, Ltd.
- Hiroki Yoshikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Noise reduced contactless parallel data transfer device and method...
- Patent number 5,594,680
- Issue date Jan 14, 1997
- Hitachi, Ltd.
- Masatoshi Ohtake
- G11 - INFORMATION STORAGE
Information Patent Grant
Non-contact system parallel data transfer system
- Patent number 5,574,273
- Issue date Nov 12, 1996
- Hitachi Maxell, Ltd.
- Kazunari Nakagawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Laminated semiconductor device and fabricating method thereof
- Patent number 5,394,608
- Issue date Mar 7, 1995
- Hitachi Maxwell, Ltd.
- Takeshi Tottori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite magnetic head
- Patent number 5,057,955
- Issue date Oct 15, 1991
- Hitachi Maxell, Ltd.
- Osamu Inagoya
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Liquid crystal display apparatus and optical device for use therein
- Publication number 20050001970
- Publication date Jan 6, 2005
- Toru Numata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projection lens system and projection image display apparatus using...
- Publication number 20040017616
- Publication date Jan 29, 2004
- Hitachi, Ltd.
- Koji Hirata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Semiconductor chip and semiconductor device using the semiconductor...
- Publication number 20030116790
- Publication date Jun 26, 2003
- Yuji Kikuchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Liquid crystal display apparatus and optical device for use therein
- Publication number 20030098944
- Publication date May 29, 2003
- Hitachi, Ltd.
- Toru Numata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projection lens apparatus and rear projection type image display ap...
- Publication number 20030095238
- Publication date May 22, 2003
- Hitachi, Ltd
- Daisuke Imafuku
- G02 - OPTICS
Information Patent Application
Projection lens system and projection image display apparatus using...
- Publication number 20020196556
- Publication date Dec 26, 2002
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Application
Rear projection display apparatus and translucent screen for use th...
- Publication number 20020109915
- Publication date Aug 15, 2002
- Hitachi, Ltd
- Shigeru Mori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projection lens system and projection image display apparatus using...
- Publication number 20020008918
- Publication date Jan 24, 2002
- Hitachi, Ltd.
- Koji Hirata
- G02 - OPTICS
Information Patent Application
Liquid crystal display apparatus and optical device for use therein
- Publication number 20010033345
- Publication date Oct 25, 2001
- Hitachi, Ltd.
- Toru Numata
- G02 - OPTICS

Kazunari Nakagawa

Person

Patents Grantslast 30 patents

Semiconductor chip and semiconductor device using the semiconductor...

Liquid crystal display apparatus and optical device for use therein

Projection lens system and projection image display apparatus using...

Projection lens apparatus and rear projection type image display ap...

Projection lens system and projection image display apparatus using...

Liquid crystal display apparatus having liquid crystal display elem...

Rear projection display apparatus and translucent screen for use th...

Projection lens system and projection image display apparatus using...

Projection image display apparatus

Liquid crystal display apparatus and optical device for use therein

Projection lens system and projection image display apparatus using...

Projection image display apparatus

Projection lens system and projection image display apparatus using...

Projection lens system and projection image display apparatus using...

Rear projection type image display apparatus

Noise reduced contactless parallel data transfer device and method...

Non-contact system parallel data transfer system

Laminated semiconductor device and fabricating method thereof

Composite magnetic head

Patents Applicationslast 30 patents

Liquid crystal display apparatus and optical device for use therein

Projection lens system and projection image display apparatus using...

Semiconductor chip and semiconductor device using the semiconductor...

Liquid crystal display apparatus and optical device for use therein

Projection lens apparatus and rear projection type image display ap...

Projection lens system and projection image display apparatus using...

Rear projection display apparatus and translucent screen for use th...

Projection lens system and projection image display apparatus using...

Liquid crystal display apparatus and optical device for use therein