Ken Yokoyama

Person

Suntou-gun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus that improves contact member durability and...
- Patent number 11,762,315
- Issue date Sep 19, 2023
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus capable of suppressing maldistribution of a...
- Patent number 11,378,901
- Issue date Jul 5, 2022
- Canon Kabushiki Kaisha
- Yusaku Iwasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,334,014
- Issue date May 17, 2022
- Canon Kabushiki Kaisha
- Yasutaka Yagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with image bearing member and a belt that c...
- Patent number 11,169,473
- Issue date Nov 9, 2021
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus that improves contact member durability and...
- Patent number 11,169,472
- Issue date Nov 9, 2021
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and intermediate transfer member
- Patent number 11,022,922
- Issue date Jun 1, 2021
- Canon Kabushiki Kaisha
- Shuji Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 10,691,057
- Issue date Jun 23, 2020
- Canon Kabushiki Kaisha
- Taisuke Minagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 10,527,972
- Issue date Jan 7, 2020
- Canon Kabushiki Kaisha
- Shuji Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 10,289,036
- Issue date May 14, 2019
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,400,458
- Issue date Jul 26, 2016
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image forming apparatus
- Patent number 9,165,227
- Issue date Oct 20, 2015
- Canon Kabushiki Kaisha
- Ken Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color image forming apparatus having function of obtaining color in...
- Patent number 9,075,330
- Issue date Jul 7, 2015
- Canon Kabushiki Kaisha
- Masatake Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,977,171
- Issue date Mar 10, 2015
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus that detects transition between patch images
- Patent number 8,913,905
- Issue date Dec 16, 2014
- Canon Kabushiki Kaisha
- Hirotaka Shiomichi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus, image processing apparatus and method capa...
- Patent number 8,902,465
- Issue date Dec 2, 2014
- Canon Kabushiki Kaisha
- Ken Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Spectrocolorimeter and image forming apparatus
- Patent number 8,873,045
- Issue date Oct 28, 2014
- Canon Kabushiki Kaisha
- Shun-ichi Ebihara
- G01 - MEASURING TESTING
Information Patent Grant
Color image forming apparatus having function of obtaining color in...
- Patent number 8,594,517
- Issue date Nov 26, 2013
- Canon Kabushiki Kaisha
- Masatake Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20240103410
- Publication date Mar 28, 2024
- Canon Kabushiki Kaisha
- KEN YOKOYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS THAT IMPROVES CONTACT MEMBER DURABILITY AND...
- Publication number 20220026832
- Publication date Jan 27, 2022
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20210382416
- Publication date Dec 9, 2021
- Canon Kabushiki Kaisha
- Yusaku Iwasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20210302885
- Publication date Sep 30, 2021
- Canon Kabushiki Kaisha
- Yasutaka Yagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND INTERMEDIATE TRANSFER MEMBER
- Publication number 20200401073
- Publication date Dec 24, 2020
- Canon Kabushiki Kaisha
- Shuji Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20200310303
- Publication date Oct 1, 2020
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20200004193
- Publication date Jan 2, 2020
- Canon Kabushiki Kaisha
- Taisuke Minagawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20190332038
- Publication date Oct 31, 2019
- Canon Kabushiki Kaisha
- Shuji Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS THAT IMPROVES CONTACT MEMBER DURABILITY AND...
- Publication number 20190332040
- Publication date Oct 31, 2019
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20180253036
- Publication date Sep 6, 2018
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING IMAGE FORMING APP...
- Publication number 20160248943
- Publication date Aug 25, 2016
- Canon Kabushiki Kaisha
- Ken Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160147182
- Publication date May 26, 2016
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20140169840
- Publication date Jun 19, 2014
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COLOR IMAGE FORMING APPARATUS HAVING FUNCTION OF OBTAINING COLOR IN...
- Publication number 20140044444
- Publication date Feb 13, 2014
- Canon Kabushiki Kaisha
- Masatake Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
COLOR IMAGE FORMING APPARATUS
- Publication number 20130222858
- Publication date Aug 29, 2013
- Canon Kabushiki Kaisha
- Ken Yokoyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
SPECTROCOLORIMETER AND IMAGE FORMING APPARATUS
- Publication number 20130038867
- Publication date Feb 14, 2013
- Canon Kabushiki Kaisha
- Shun-ichi Ebihara
- G01 - MEASURING TESTING
Information Patent Application
IMAGE FORMING APPARATUS THAT DETECTS TRANSITION BETWEEN PATCH IMAGES
- Publication number 20120219306
- Publication date Aug 30, 2012
- Canon Kabushiki Kaisha
- Hirotaka Shiomichi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, IMAGE PROCESSING APPARATUS, IMAGE PROCESSI...
- Publication number 20120154832
- Publication date Jun 21, 2012
- Canon Kabushiki Kaisha
- Ken Yokoyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
COLOR IMAGE FORMING APPARATUS HAVING FUNCTION OF OBTAINING COLOR IN...
- Publication number 20110217052
- Publication date Sep 8, 2011
- Canon Kabushiki Kaisha
- Masatake Usui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Ken Yokoyama

Person

Patents Grantslast 30 patents

Image forming apparatus that improves contact member durability and...

Image forming apparatus capable of suppressing maldistribution of a...

Image forming apparatus

Image forming apparatus with image bearing member and a belt that c...

Image forming apparatus that improves contact member durability and...

Image forming apparatus and intermediate transfer member

Image forming apparatus

Image forming apparatus

Image forming apparatus

Image forming apparatus

Color image forming apparatus

Color image forming apparatus having function of obtaining color in...

Image forming apparatus

Image forming apparatus that detects transition between patch images

Image forming apparatus, image processing apparatus and method capa...

Spectrocolorimeter and image forming apparatus

Color image forming apparatus having function of obtaining color in...

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS THAT IMPROVES CONTACT MEMBER DURABILITY AND...

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND INTERMEDIATE TRANSFER MEMBER

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS THAT IMPROVES CONTACT MEMBER DURABILITY AND...

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING IMAGE FORMING APP...

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

COLOR IMAGE FORMING APPARATUS HAVING FUNCTION OF OBTAINING COLOR IN...

COLOR IMAGE FORMING APPARATUS

SPECTROCOLORIMETER AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS THAT DETECTS TRANSITION BETWEEN PATCH IMAGES

IMAGE FORMING APPARATUS, IMAGE PROCESSING APPARATUS, IMAGE PROCESSI...

COLOR IMAGE FORMING APPARATUS HAVING FUNCTION OF OBTAINING COLOR IN...