Yasuyuki Tejima

Person

Tokorozawa-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Distance measuring device and projector including same distance mea...
- Patent number 8,002,416
- Issue date Aug 23, 2011
- Casio Computer Co., Ltd.
- Yasuyuki Tejima
- G01 - MEASURING TESTING
Information Patent Grant
Zoom lens system and a projector with the zoom lens system
- Patent number 7,944,621
- Issue date May 17, 2011
- Casio Computer Co., Ltd.
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Grant
Lens system and projector utilizing the same
- Patent number 7,672,065
- Issue date Mar 2, 2010
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Lens system and projector using the same
- Patent number 7,623,304
- Issue date Nov 24, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Lens system and projector utilizing the same
- Patent number 7,619,833
- Issue date Nov 17, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector unit
- Patent number 7,619,831
- Issue date Nov 17, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector using zoom lens
- Patent number 7,548,379
- Issue date Jun 16, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector using zoom lens
- Patent number 7,548,378
- Issue date Jun 16, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector unit
- Patent number 7,545,581
- Issue date Jun 9, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector using zoom lens
- Patent number 7,529,034
- Issue date May 5, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector using zoom lens
- Patent number 7,495,841
- Issue date Feb 24, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector unit
- Patent number 7,495,842
- Issue date Feb 24, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Lens system and projector utilizing the same
- Patent number 7,486,450
- Issue date Feb 3, 2009
- Casio Computer Co., Ltd.
- Etsuro Kawakami
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Zoom lens and projector employing zoom lens
- Patent number 7,423,812
- Issue date Sep 9, 2008
- Casio Computer Co., Ltd.
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Grant
Zoom lens and projector with zoom lens
- Patent number 7,394,599
- Issue date Jul 1, 2008
- Casio Computer Co. Ltd.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Grant
Progressive power lens
- Patent number 6,837,580
- Issue date Jan 4, 2005
- PENTAX Corporation
- Yuko Senda
- G02 - OPTICS
Information Patent Grant
Projector
- Patent number 5,651,598
- Issue date Jul 29, 1997
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Kazushi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projector and focusing method therein
- Patent number 5,645,334
- Issue date Jul 8, 1997
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection lens assembly and projector
- Patent number 5,600,488
- Issue date Feb 4, 1997
- Casio Computer Co., Ltd.
- Nobutaka Minefuji
- G02 - OPTICS
Information Patent Grant
Pupil conjugate-coupling device in projecting optical system
- Patent number 5,442,413
- Issue date Aug 15, 1995
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Grant
Aspherical spectacle lens
- Patent number 5,353,072
- Issue date Oct 4, 1994
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Grant
Projector
- Patent number 5,305,029
- Issue date Apr 19, 1994
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Kazushi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus for combining and projecting images
- Patent number 5,283,599
- Issue date Feb 1, 1994
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image projecting device
- Patent number 5,274,406
- Issue date Dec 28, 1993
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Grant
Illuminating reflection apparatus
- Patent number 5,272,570
- Issue date Dec 21, 1993
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Kazushi Yoshida
- F21 - LIGHTING
Information Patent Grant
Reflection type lighting apparatus
- Patent number 5,217,299
- Issue date Jun 8, 1993
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Kazushi Yoshida
- F21 - LIGHTING
Information Patent Grant
Still camera
- Patent number 5,038,162
- Issue date Aug 6, 1991
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Contrast decreasing apparatus in image forming optical system
- Patent number 5,005,968
- Issue date Apr 9, 1991
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Grant
Illuminating optical device
- Patent number 4,998,191
- Issue date Mar 5, 1991
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Grant
Projection display device
- Patent number 4,981,352
- Issue date Jan 1, 1991
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Yasuyuki Tejima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
ZOOM LENS SYSTEM AND A PROJECTOR WITH THE ZOOM LENS SYSTEM
- Publication number 20100046087
- Publication date Feb 25, 2010
- CASIO COMPUTER CO., LTD.
- Yasuyuki TEJIMA
- G02 - OPTICS
Information Patent Application
DISTANCE MEASURING DEVICE AND PROJECTOR INCLUDING SAME DISTANCE MEA...
- Publication number 20090059183
- Publication date Mar 5, 2009
- CASIO COMPUTER CO., LTD.
- Yasuyuki TEJIMA
- G01 - MEASURING TESTING
Information Patent Application
Lens system and projector utilizing the same
- Publication number 20080239514
- Publication date Oct 2, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
LENS SYSTEM AND PROJECTOR UTILIZING THE SAME
- Publication number 20080137212
- Publication date Jun 12, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro KAWAKAMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LENS SYSTEM AND PROJECTOR UTILIZING THE SAME
- Publication number 20080137211
- Publication date Jun 12, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro KAWAKAMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Lens system and projector using the same
- Publication number 20080130142
- Publication date Jun 5, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector employing zoom lens
- Publication number 20080030871
- Publication date Feb 7, 2008
- CASIO COMPUTER CO., LTD.
- Yasuyuki Tejima
- G02 - OPTICS
Information Patent Application
Zoom lens and projector using zoom lens
- Publication number 20080024875
- Publication date Jan 31, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector using zoom lens
- Publication number 20080024878
- Publication date Jan 31, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector using zoom lens
- Publication number 20080024876
- Publication date Jan 31, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector using zoom lens
- Publication number 20080024877
- Publication date Jan 31, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector unit
- Publication number 20080019020
- Publication date Jan 24, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector unit
- Publication number 20080019019
- Publication date Jan 24, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector unit
- Publication number 20080019021
- Publication date Jan 24, 2008
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Zoom lens and projector with zoom lens
- Publication number 20070273979
- Publication date Nov 29, 2007
- CASIO COMPUTER CO., LTD.
- Etsuro Kawakami
- G02 - OPTICS
Information Patent Application
Progressive power lens
- Publication number 20030107704
- Publication date Jun 12, 2003
- PENTAX CORPORATION
- Yuko Senda
- G02 - OPTICS

Yasuyuki Tejima

Person

Patents Grantslast 30 patents

Distance measuring device and projector including same distance mea...

Zoom lens system and a projector with the zoom lens system

Lens system and projector utilizing the same

Lens system and projector using the same

Lens system and projector utilizing the same

Zoom lens and projector unit

Zoom lens and projector using zoom lens

Zoom lens and projector using zoom lens

Zoom lens and projector unit

Zoom lens and projector using zoom lens

Zoom lens and projector using zoom lens

Zoom lens and projector unit

Lens system and projector utilizing the same

Zoom lens and projector employing zoom lens

Zoom lens and projector with zoom lens

Progressive power lens

Projector

Projector and focusing method therein

Projection lens assembly and projector

Pupil conjugate-coupling device in projecting optical system

Aspherical spectacle lens

Projector

Apparatus for combining and projecting images

Image projecting device

Illuminating reflection apparatus

Reflection type lighting apparatus

Still camera

Contrast decreasing apparatus in image forming optical system

Illuminating optical device

Projection display device

Patents Applicationslast 30 patents

ZOOM LENS SYSTEM AND A PROJECTOR WITH THE ZOOM LENS SYSTEM

DISTANCE MEASURING DEVICE AND PROJECTOR INCLUDING SAME DISTANCE MEA...

Lens system and projector utilizing the same

LENS SYSTEM AND PROJECTOR UTILIZING THE SAME

LENS SYSTEM AND PROJECTOR UTILIZING THE SAME

Lens system and projector using the same

Zoom lens and projector employing zoom lens

Zoom lens and projector using zoom lens

Zoom lens and projector using zoom lens

Zoom lens and projector using zoom lens

Zoom lens and projector using zoom lens

Zoom lens and projector unit

Zoom lens and projector unit

Zoom lens and projector unit

Zoom lens and projector with zoom lens

Progressive power lens