Takehito Kawasumi

Person

Saitama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light source apparatus and image projection apparatus
- Patent number 11,754,914
- Issue date Sep 12, 2023
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light source apparatus and image projection apparatus having the same
- Patent number 11,656,541
- Issue date May 23, 2023
- Canon Kabushiki Kaisha
- Yuuki Maeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light source apparatus and image projection apparatus
- Patent number 11,561,461
- Issue date Jan 24, 2023
- Canon Kabushiki Kaisha
- Tomohisa Aida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color separation and combination optical system and image projectio...
- Patent number 11,006,084
- Issue date May 11, 2021
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G02 - OPTICS
Information Patent Grant
Light source apparatus and image projection apparatus having the same
- Patent number 10,768,518
- Issue date Sep 8, 2020
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G02 - OPTICS
Information Patent Grant
Illumination apparatus and image projection apparatus
- Patent number 10,712,647
- Issue date Jul 14, 2020
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image projection apparatus that projects superimposed images
- Patent number 10,670,947
- Issue date Jun 2, 2020
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image projection apparatus including light modulation elements
- Patent number 10,564,528
- Issue date Feb 18, 2020
- Canon Kabushiki Kaisha
- Hiroyuki Kodama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light source optical system and projection display apparatus employ...
- Patent number 10,133,169
- Issue date Nov 20, 2018
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G02 - OPTICS
Information Patent Grant
Illumination apparatus and projection display apparatus using the same
- Patent number 10,082,731
- Issue date Sep 25, 2018
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Illumination apparatus and projection type display apparatus
- Patent number 10,073,330
- Issue date Sep 11, 2018
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical apparatus and image projection apparatus having multiple re...
- Patent number 10,015,455
- Issue date Jul 3, 2018
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light source optical system and projection display apparatus employ...
- Patent number 9,921,462
- Issue date Mar 20, 2018
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light source optical system and projection display apparatus employ...
- Patent number 9,851,631
- Issue date Dec 26, 2017
- Canon Kabushiki Kaisha
- Kazuhiro Inoko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Illumination optical system and image projection apparatus
- Patent number 9,638,992
- Issue date May 2, 2017
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Illumination optical system and image projection apparatus
- Patent number 9,436,073
- Issue date Sep 6, 2016
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical system and projection display apparatus using the same
- Patent number 9,389,427
- Issue date Jul 12, 2016
- Canon Kabushiki Kaisha
- Hiroyuki Kodama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection-type image display apparatus
- Patent number 8,955,977
- Issue date Feb 17, 2015
- Canon Kabushiki Kaisha
- Yutaka Yamaguchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Illumination optical system and image projection apparatus
- Patent number 8,857,996
- Issue date Oct 14, 2014
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image display apparatus
- Patent number 8,702,240
- Issue date Apr 22, 2014
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS
- Publication number 20220043330
- Publication date Feb 10, 2022
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS HAVING THE SAME
- Publication number 20210255533
- Publication date Aug 19, 2021
- Canon Kabushiki Kaisha
- Yuuki Maeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS
- Publication number 20200393747
- Publication date Dec 17, 2020
- Canon Kabushiki Kaisha
- Tomohisa Aida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS HAVING THE SAME
- Publication number 20200103737
- Publication date Apr 2, 2020
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G02 - OPTICS
Information Patent Application
COLOR SEPARATION AND COMBINATION OPTICAL SYSTEM AND IMAGE PROJECTIO...
- Publication number 20200021783
- Publication date Jan 16, 2020
- Canon Kabushiki Kaisha
- Takehito KAWASUMI
- G02 - OPTICS
Information Patent Application
ILLUMINATION APPARATUS AND IMAGE PROJECTION APPARATUS
- Publication number 20190250491
- Publication date Aug 15, 2019
- Canon Kabushiki Kaisha
- Takehito KAWASUMI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE PROJECTION APPARATUS
- Publication number 20190052836
- Publication date Feb 14, 2019
- Canon Kabushiki Kaisha
- Takehito KAWASUMI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE PROJECTION APPARATUS
- Publication number 20190049825
- Publication date Feb 14, 2019
- Canon Kabushiki Kaisha
- Hiroyuki Kodama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LIGHT SOURCE OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS EMPLOY...
- Publication number 20180149956
- Publication date May 31, 2018
- Canon Kabushiki Kaisha
- Takehito KAWASUMI
- G02 - OPTICS
Information Patent Application
ILLUMINATION APPARATUS AND PROJECTION TYPE DISPLAY APPARATUS
- Publication number 20170307969
- Publication date Oct 26, 2017
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS USING THE SAME
- Publication number 20170299958
- Publication date Oct 19, 2017
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G02 - OPTICS
Information Patent Application
LIGHT SOURCE OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS EMPLOY...
- Publication number 20170168380
- Publication date Jun 15, 2017
- Canon Kabushiki Kaisha
- Kazuhiro Inoko
- G02 - OPTICS
Information Patent Application
LIGHT SOURCE OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS EMPLOY...
- Publication number 20170153538
- Publication date Jun 1, 2017
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- G02 - OPTICS
Information Patent Application
OPTICAL APPARATUS AND IMAGE PROJECTION APPARATUS
- Publication number 20160150202
- Publication date May 26, 2016
- Canon Kabushiki Kaisha
- Takehito KAWASUMI
- G02 - OPTICS
Information Patent Application
ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS
- Publication number 20150338729
- Publication date Nov 26, 2015
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- F21 - LIGHTING
Information Patent Application
ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS
- Publication number 20140226132
- Publication date Aug 14, 2014
- Canon Kabushiki Kaisha
- Takehito KAWASUMI
- G02 - OPTICS
Information Patent Application
OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS USING THE SAME
- Publication number 20130286357
- Publication date Oct 31, 2013
- Canon Kabushiki Kaisha
- Hiroyuki Kodama
- G02 - OPTICS
Information Patent Application
PROJECTION-TYPE IMAGE DISPLAY APPARATUS
- Publication number 20130063700
- Publication date Mar 14, 2013
- Canon Kabushiki Kaisha
- Yutaka Yamaguchi
- G02 - OPTICS
Information Patent Application
ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS
- Publication number 20120262679
- Publication date Oct 18, 2012
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE DISPLAY APPARATUS
- Publication number 20110149207
- Publication date Jun 23, 2011
- Canon Kabushiki Kaisha
- Takehito Kawasumi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Takehito Kawasumi

Person

Patents Grantslast 30 patents

Light source apparatus and image projection apparatus

Light source apparatus and image projection apparatus having the same

Light source apparatus and image projection apparatus

Color separation and combination optical system and image projectio...

Light source apparatus and image projection apparatus having the same

Illumination apparatus and image projection apparatus

Image projection apparatus that projects superimposed images

Image projection apparatus including light modulation elements

Light source optical system and projection display apparatus employ...

Illumination apparatus and projection display apparatus using the same

Illumination apparatus and projection type display apparatus

Optical apparatus and image projection apparatus having multiple re...

Light source optical system and projection display apparatus employ...

Light source optical system and projection display apparatus employ...

Illumination optical system and image projection apparatus

Illumination optical system and image projection apparatus

Optical system and projection display apparatus using the same

Projection-type image display apparatus

Illumination optical system and image projection apparatus

Image display apparatus

Patents Applicationslast 30 patents

LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS

LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS HAVING THE SAME

LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS

LIGHT SOURCE APPARATUS AND IMAGE PROJECTION APPARATUS HAVING THE SAME

COLOR SEPARATION AND COMBINATION OPTICAL SYSTEM AND IMAGE PROJECTIO...

ILLUMINATION APPARATUS AND IMAGE PROJECTION APPARATUS

IMAGE PROJECTION APPARATUS

IMAGE PROJECTION APPARATUS

LIGHT SOURCE OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS EMPLOY...

ILLUMINATION APPARATUS AND PROJECTION TYPE DISPLAY APPARATUS

ILLUMINATION APPARATUS AND PROJECTION DISPLAY APPARATUS USING THE SAME

LIGHT SOURCE OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS EMPLOY...

LIGHT SOURCE OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS EMPLOY...

OPTICAL APPARATUS AND IMAGE PROJECTION APPARATUS

ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS

ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS

OPTICAL SYSTEM AND PROJECTION DISPLAY APPARATUS USING THE SAME

PROJECTION-TYPE IMAGE DISPLAY APPARATUS

ILLUMINATION OPTICAL SYSTEM AND IMAGE PROJECTION APPARATUS

IMAGE DISPLAY APPARATUS