Akitaka Yajima

Person

Tatsuno-machi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Projector
- Patent number 9,250,507
- Issue date Feb 2, 2016
- Seiko Epson Corporation
- Shuji Narimatsu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projector
- Patent number RE41680
- Issue date Sep 14, 2010
- Seiko Epson Corporation
- Toshiaki Hashizume
- 353 - Optics: image projectors
Information Patent Grant
Optical element, polarization illumination device, and projector
- Patent number RE40251
- Issue date Apr 22, 2008
- Seiko Epson Corporation
- Yasunori Ogawa
- 359 - Optical: systems and elements
Information Patent Grant
Dichroic prism, prism unit, and projection display apparatus
- Patent number RE39859
- Issue date Sep 25, 2007
- Seiko Epson Corporation
- Tomiyoshi Ushiyama
- 359 - Optical: systems and elements
Information Patent Grant
Light-modulating projector
- Patent number 7,267,443
- Issue date Sep 11, 2007
- Seiko Epson Corporation
- Hidemasa Yamakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projector
- Patent number RE39702
- Issue date Jun 26, 2007
- Seiko Epson Corporation
- Toshiaki Hashizume
- 353 - Optics: image projectors
Information Patent Grant
Optical element, polarization illumination device, and projector
- Patent number RE39243
- Issue date Aug 22, 2006
- Seiko Epson Corporation
- Yasunori Ogawa
- 359 - Optical: systems and elements
Information Patent Grant
Projector
- Patent number RE39040
- Issue date Mar 28, 2006
- Seiko Epson Corporation
- Yasunori Ogawa
- 353 - Optics: image projectors
Information Patent Grant
Light-source lamp unit, light-source device and projection-type dis...
- Patent number 7,006,004
- Issue date Feb 28, 2006
- Seiko Epson Corporation
- Kiyoshi Miyashita
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Dichroic prism and projection display apparatus
- Patent number RE38740
- Issue date Jun 7, 2005
- Seiko Epson Corporation
- Toshiaki Hashizume
- 359 - Optical: systems and elements
Information Patent Grant
System and methods for providing a zoom lens device
- Patent number 6,894,845
- Issue date May 17, 2005
- Seiko Epson Corporation
- Shuji Narimatsu
- G02 - OPTICS
Information Patent Grant
Liquid crystal light valve and projection display device including...
- Patent number 6,856,375
- Issue date Feb 15, 2005
- Seiko Epson Corporation
- Akitaka Yajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection-type display apparatus
- Patent number 6,778,228
- Issue date Aug 17, 2004
- Seiko Epson Corporation
- Osamu Murakami
- G02 - OPTICS
Information Patent Grant
Optical element suitable for projection display apparatus
- Patent number 6,728,020
- Issue date Apr 27, 2004
- Seiko Epson Corporation
- Yajima Akitaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Light-source lamp unit, light-source device and projection-type dis...
- Patent number 6,690,282
- Issue date Feb 10, 2004
- Seiko Epson Corporation
- Kiyoshi Miyashita
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Illumination system and projector
- Patent number 6,669,345
- Issue date Dec 30, 2003
- Seiko Epson Corporation
- Akitaka Yajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Correction of image distortion
- Patent number 6,652,104
- Issue date Nov 25, 2003
- Seiko Epson Corporation
- Kazuhiro Nishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection display device
- Patent number 6,637,886
- Issue date Oct 28, 2003
- Seiko Epson Corporation
- Tomiyoshi Ushiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection display device
- Patent number 6,612,702
- Issue date Sep 2, 2003
- Seiko Corporation
- Tomiyoshi Ushiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projector
- Patent number RE38084
- Issue date Apr 22, 2003
- Seiko Epson Corporation
- Toshiaki Hashizume
- 353 - Optics: image projectors
Information Patent Grant
Projector
- Patent number 6,540,360
- Issue date Apr 1, 2003
- Seiko Epson Corporation
- Mutsuya Furuhata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projector
- Patent number 6,529,250
- Issue date Mar 4, 2003
- Seiko Epson Corporation
- Osamu Murakami
- G02 - OPTICS
Information Patent Grant
Optical element suitable for projection display apparatus
- Patent number 6,523,962
- Issue date Feb 25, 2003
- Seiko Epson Corporation
- Akitaka Yajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Illumination system and projector
- Patent number 6,517,208
- Issue date Feb 11, 2003
- Seiko Epson Corporation
- Akitaka Yajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection lens unit and projector using the same
- Patent number 6,425,667
- Issue date Jul 30, 2002
- Seiko Epson Corporation
- Shinji Haba
- G02 - OPTICS
Information Patent Grant
Optical element suitable for projection display apparatus
- Patent number 6,404,550
- Issue date Jun 11, 2002
- Seiko Epson Corporation
- Akitaka Yajima
- G02 - OPTICS
Information Patent Grant
Polarized light separation device, method of fabricating the same a...
- Patent number 6,394,607
- Issue date May 28, 2002
- Seiko Epson Corporation
- Toshiaki Hashizume
- G02 - OPTICS
Information Patent Grant
Projector
- Patent number 6,315,417
- Issue date Nov 13, 2001
- Seiko Epson Corporation
- Akitaka Yajima
- G02 - OPTICS
Information Patent Grant
Projector
- Patent number 6,309,073
- Issue date Oct 30, 2001
- Seiko Epson Corporation
- Tadaaki Nakayama
- G02 - OPTICS
Information Patent Grant
Liquid crystal device and projector display device having a specifi...
- Patent number 6,278,500
- Issue date Aug 21, 2001
- Seiko Epson Corporation
- Yasunori Ogawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
DISPLAY DEVICE
- Publication number 20160286180
- Publication date Sep 29, 2016
- SEIKO EPSON CORPORATION
- Makoto OTANI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projector
- Publication number 20160041459
- Publication date Feb 11, 2016
- SEIKO EPSON CORPORATION
- Makoto OTANI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROJECTOR
- Publication number 20140036164
- Publication date Feb 6, 2014
- SEIKO EPSON CORPORATION
- Shuji Narimatsu
- G02 - OPTICS
Information Patent Application
Projector
- Publication number 20060152681
- Publication date Jul 13, 2006
- SEIKO EPSON CORPORATION
- Hidemasa Yamakawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Light-source lamp unit, light-source device and projection-type dis...
- Publication number 20040080715
- Publication date Apr 29, 2004
- SEIKO EPSON CORPORATION
- Kiyoshi Miyashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Projection display device
- Publication number 20030107713
- Publication date Jun 12, 2003
- SEIKO EPSON CORPORATION
- Tomiyoshi Ushiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Illumination system and projector
- Publication number 20030025883
- Publication date Feb 6, 2003
- SEIKO EPSON CORPORATION
- Akitaka Yajima
- G02 - OPTICS
Information Patent Application
Projection-type display apparatus
- Publication number 20030025845
- Publication date Feb 6, 2003
- SEIKO EPSON CORPORATION
- Osamu Murakami
- G02 - OPTICS
Information Patent Application
Zoom lens device, optical device comprising the same, and projector
- Publication number 20020154276
- Publication date Oct 24, 2002
- Shuji Narimatsu
- G02 - OPTICS
Information Patent Application
Liquid crystal light valve and projection display device including...
- Publication number 20020126228
- Publication date Sep 12, 2002
- SEIKO EPSON CORPORATION
- Akitaka Yajima
- G02 - OPTICS
Information Patent Application
Correction of image distortion
- Publication number 20020122161
- Publication date Sep 5, 2002
- SEIKO EPSON CORPORATION
- Kazuhiro Nishida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical element suitable for projection display apparatus
- Publication number 20020089746
- Publication date Jul 11, 2002
- Seiko Epson Corporation
- Yajima Akitaka
- G02 - OPTICS
Information Patent Application
Optical element suitable for projection display apparatus
- Publication number 20020080487
- Publication date Jun 27, 2002
- Seiko Epson Corporation
- Akitaka Yajima
- G02 - OPTICS
Information Patent Application
A PROJECTOR
- Publication number 20020060779
- Publication date May 23, 2002
- MUTSUYA FURUHATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Projection-type display apparatus
- Publication number 20020057420
- Publication date May 16, 2002
- SEIKO EPSON CORPORATION
- Tadaaki Nakayama
- G02 - OPTICS
Information Patent Application
Light-source lamp unit, light-source device and projection-type dis...
- Publication number 20010005172
- Publication date Jun 28, 2001
- Seiko Epson
- Kiyoshi Miyashita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Akitaka Yajima

Person

Patents Grantslast 30 patents

Projector

Projector

Optical element, polarization illumination device, and projector

Dichroic prism, prism unit, and projection display apparatus

Light-modulating projector

Projector

Optical element, polarization illumination device, and projector

Projector

Light-source lamp unit, light-source device and projection-type dis...

Dichroic prism and projection display apparatus

System and methods for providing a zoom lens device

Liquid crystal light valve and projection display device including...

Projection-type display apparatus

Optical element suitable for projection display apparatus

Light-source lamp unit, light-source device and projection-type dis...

Illumination system and projector

Correction of image distortion

Projection display device

Projection display device

Projector

Projector

Projector

Optical element suitable for projection display apparatus

Illumination system and projector

Projection lens unit and projector using the same

Optical element suitable for projection display apparatus

Polarized light separation device, method of fabricating the same a...

Projector

Projector

Liquid crystal device and projector display device having a specifi...

Patents Applicationslast 30 patents

DISPLAY DEVICE

Projector

PROJECTOR

Projector

Light-source lamp unit, light-source device and projection-type dis...

Projection display device

Illumination system and projector

Projection-type display apparatus

Zoom lens device, optical device comprising the same, and projector

Liquid crystal light valve and projection display device including...

Correction of image distortion

Optical element suitable for projection display apparatus

Optical element suitable for projection display apparatus

A PROJECTOR

Projection-type display apparatus

Light-source lamp unit, light-source device and projection-type dis...