Takehiro Koyama

Person

Tochigi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Projection type display apparatus
- Patent number 10,620,513
- Issue date Apr 14, 2020
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Displaying apparatus unit and projection type displaying apparatus
- Patent number 9,726,884
- Issue date Aug 8, 2017
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image projector
- Patent number 9,618,831
- Issue date Apr 11, 2017
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image projector
- Patent number 9,091,910
- Issue date Jul 28, 2015
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image projection apparatus having an insertable and extractable opt...
- Patent number 8,888,293
- Issue date Nov 18, 2014
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Prism unit and a projection image display apparatus
- Patent number 8,724,241
- Issue date May 13, 2014
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G02 - OPTICS
Information Patent Grant
Prism unit and a projection image display apparatus
- Patent number 8,233,227
- Issue date Jul 31, 2012
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G02 - OPTICS
Information Patent Grant
Optical modulation element unit, projection optical unit, and image...
- Patent number 7,961,269
- Issue date Jun 14, 2011
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical modulation element unit, projection optical unit, and image...
- Patent number 7,868,963
- Issue date Jan 11, 2011
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color separating-combining optical system, image display optical sy...
- Patent number 7,158,308
- Issue date Jan 2, 2007
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color separating-combining optical system, image display optical sy...
- Patent number 6,919,992
- Issue date Jul 19, 2005
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection type image display apparatus
- Patent number 6,736,513
- Issue date May 18, 2004
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
PROJECTION DISPLAY APPARATUS
- Publication number 20200004030
- Publication date Jan 2, 2020
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PROJECTION TYPE DISPLAY APPARATUS
- Publication number 20190331987
- Publication date Oct 31, 2019
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE PROJECTOR
- Publication number 20150301435
- Publication date Oct 22, 2015
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DISPLAYING APPARATUS UNIT AND PROJECTION TYPE DISPLAYING APPARATUS
- Publication number 20150277112
- Publication date Oct 1, 2015
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G02 - OPTICS
Information Patent Application
PRISM UNIT AND A PROJECTION IMAGE DISPLAY APPARATUS
- Publication number 20120250170
- Publication date Oct 4, 2012
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G02 - OPTICS
Information Patent Application
IMAGE PROJECTION APPARATUS
- Publication number 20120194786
- Publication date Aug 2, 2012
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE PROJECTOR
- Publication number 20120120373
- Publication date May 17, 2012
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE PROJECTION APPARATUS WITH SHUTTER UNIT
- Publication number 20110096301
- Publication date Apr 28, 2011
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
OPTICAL MODULATION ELEMENT UNIT, PROJECTION OPTICAL UNIT, AND IMAGE...
- Publication number 20100091201
- Publication date Apr 15, 2010
- Canon Kabushiki Kaisha
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
PRISM UNIT AND A PROJECTION IMAGE DISPLAY APPARATUS
- Publication number 20090141360
- Publication date Jun 4, 2009
- Canon Kabushiki Kaisha
- Takehiro Koyama
- G02 - OPTICS
Information Patent Application
Optical modulation element unit, projection optical unit, and image...
- Publication number 20060274412
- Publication date Dec 7, 2006
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Color separating-combining optical system, image display optical sy...
- Publication number 20050225869
- Publication date Oct 13, 2005
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Color separating-combining optical system, image display optical sy...
- Publication number 20030063389
- Publication date Apr 3, 2003
- Takehiro Koyama
- G02 - OPTICS
Information Patent Application
Projection type image display apparatus
- Publication number 20020191158
- Publication date Dec 19, 2002
- Takehiro Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Takehiro Koyama

Person

Patents Grantslast 30 patents

Projection type display apparatus

Displaying apparatus unit and projection type displaying apparatus

Image projector

Image projector

Image projection apparatus having an insertable and extractable opt...

Prism unit and a projection image display apparatus

Prism unit and a projection image display apparatus

Optical modulation element unit, projection optical unit, and image...

Optical modulation element unit, projection optical unit, and image...

Color separating-combining optical system, image display optical sy...

Color separating-combining optical system, image display optical sy...

Projection type image display apparatus

Patents Applicationslast 30 patents

PROJECTION DISPLAY APPARATUS

PROJECTION TYPE DISPLAY APPARATUS

IMAGE PROJECTOR

DISPLAYING APPARATUS UNIT AND PROJECTION TYPE DISPLAYING APPARATUS

PRISM UNIT AND A PROJECTION IMAGE DISPLAY APPARATUS

IMAGE PROJECTION APPARATUS

IMAGE PROJECTOR

IMAGE PROJECTION APPARATUS WITH SHUTTER UNIT

OPTICAL MODULATION ELEMENT UNIT, PROJECTION OPTICAL UNIT, AND IMAGE...

PRISM UNIT AND A PROJECTION IMAGE DISPLAY APPARATUS

Optical modulation element unit, projection optical unit, and image...

Color separating-combining optical system, image display optical sy...

Color separating-combining optical system, image display optical sy...

Projection type image display apparatus