Kazuhiko Watanabe

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus
- Patent number 12,045,000
- Issue date Jul 23, 2024
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder conveying device and image forming apparatus incorporating t...
- Patent number 11,809,097
- Issue date Nov 7, 2023
- Ricoh Company, Ltd.
- Kota Shiodera
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning blade, sheet conveyance roller, process cartridge, and ima...
- Patent number 11,442,396
- Issue date Sep 13, 2022
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,175,610
- Issue date Nov 16, 2021
- Ricoh Company, Ltd.
- Naohiro Kumagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a temperature change suppressor
- Patent number 11,150,604
- Issue date Oct 19, 2021
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Three-dimensional object fabrication method, fabrication apparatus,...
- Patent number 10,682,808
- Issue date Jun 16, 2020
- Ricoh Company, Ltd.
- Takashi Fujita
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Cleaning blade, cleaning device, image forming apparatus, and proce...
- Patent number 10,514,651
- Issue date Dec 24, 2019
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blade and image forming apparatus and cleaning device incorporating...
- Patent number 10,042,315
- Issue date Aug 7, 2018
- Ricoh Company, Ltd.
- Eisuke Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning blade, image forming apparatus, and process cartridge
- Patent number 10,031,466
- Issue date Jul 24, 2018
- Ricoh Company, Limited
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blade and image forming apparatus incorporating same
- Patent number 9,977,396
- Issue date May 22, 2018
- Ricoh Company, Ltd.
- Eisuke Shimizu
- B08 - CLEANING
Information Patent Grant
Blade, cleaning device, and image forming apparatus incorporating same
- Patent number 9,904,233
- Issue date Feb 27, 2018
- Ricoh Company, Ltd.
- Eisuke Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blade and image forming apparatus incorporating same
- Patent number 9,798,284
- Issue date Oct 24, 2017
- Ricoh Company, Ltd.
- Eisuke Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blade and image forming apparatus incorporating same
- Patent number 9,529,317
- Issue date Dec 27, 2016
- Ricoh Company, Ltd.
- Eisuke Shimizu
- B08 - CLEANING
Information Patent Grant
Image forming apparatus configured to modify a reference voltage co...
- Patent number 9,436,117
- Issue date Sep 6, 2016
- Ricoh Company, Ltd.
- Hisashi Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging roller, charging device and image forming apparatus incorp...
- Patent number 9,329,519
- Issue date May 3, 2016
- Ricoh Company, Ltd.
- Hisashi Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge therefor
- Patent number 9,310,750
- Issue date Apr 12, 2016
- Ricoh Company, Ltd.
- Hisashi Kikuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Blade member, image forming apparatus and process cartridge
- Patent number 9,310,751
- Issue date Apr 12, 2016
- Ricoh Company, Ltd.
- Eisuke Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Computer system and divided job processing method and program
- Patent number 9,244,721
- Issue date Jan 26, 2016
- Hitachi, Ltd.
- Kazuya Konno
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cleaning blade, image forming apparatus, and process cartridge
- Patent number 9,170,557
- Issue date Oct 27, 2015
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaner, and process cartridge and image forming apparatus using th...
- Patent number 9,081,353
- Issue date Jul 14, 2015
- Ricoh Company, Ltd.
- Takaaki Tawada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,052,629
- Issue date Jun 9, 2015
- Ricoh Company Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Connector, charging device incorporating same, and image forming ap...
- Patent number 8,918,008
- Issue date Dec 23, 2014
- Ricoh Company, Ltd.
- Keiji Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, and image forming apparatus, process cartridge, an...
- Patent number 8,798,516
- Issue date Aug 5, 2014
- Ricoh Company, Ltd.
- Keiji Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, and image forming apparatus, process cartridge, an...
- Patent number 8,712,309
- Issue date Apr 29, 2014
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, and image forming apparatus, process cartridge, an...
- Patent number 8,364,070
- Issue date Jan 29, 2013
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, method of manufacturing the cleaning device, and p...
- Patent number 8,275,301
- Issue date Sep 25, 2012
- Ricoh Company, Limited
- Kazuhiko Watanabe
- B08 - CLEANING
Information Patent Grant
Cleaning device for image forming apparatus, and process cartridge...
- Patent number 8,131,199
- Issue date Mar 6, 2012
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, process cartridge, and image forming apparatus
- Patent number 8,027,628
- Issue date Sep 27, 2011
- Ricoh Company, Ltd.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device for image forming apparatus and process cartridge p...
- Patent number 7,974,565
- Issue date Jul 5, 2011
- Ricoh Company, Ltd.
- Yoshiki Hozumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lubricant supplier, process cartridge including same, and image for...
- Patent number 7,899,382
- Issue date Mar 1, 2011
- Ricoh Company Limited
- Yoshiki Hozumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20230229107
- Publication date Jul 20, 2023
- RICOH COMPANY, LTD.
- Kazuhiko WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
POWDER CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING T...
- Publication number 20220299909
- Publication date Sep 22, 2022
- RICOH COMPANY, LTD.
- Kota SHIODERA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20210325802
- Publication date Oct 21, 2021
- Ricoh Company, Ltd.
- Naohiro KUMAGAI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING BLADE, SHEET CONVEYANCE ROLLER, PROCESS CARTRIDGE, AND IMA...
- Publication number 20210216032
- Publication date Jul 15, 2021
- RICOH COMPANY, LTD.
- Kazuhiko WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20210034010
- Publication date Feb 4, 2021
- Ricoh Company, Ltd.
- Kazuhiko WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
THREE-DIMENSIONAL OBJECT FABRICATION METHOD, FABRICATION APPARATUS,...
- Publication number 20190126538
- Publication date May 2, 2019
- RICOH COMPANY, LTD.
- Takashi FUJITA
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
- Publication number 20180373198
- Publication date Dec 27, 2018
- Hiroshi Mizusawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING BLADE, CLEANING DEVICE, IMAGE FORMING APPARATUS, AND PROCE...
- Publication number 20180196387
- Publication date Jul 12, 2018
- RICOH COMPANY, LTD.
- Kazuhiko WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20170199493
- Publication date Jul 13, 2017
- Kazuhiko WATANABE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BLADE, CLEANING DEVICE, AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170146944
- Publication date May 25, 2017
- Eisuke SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BLADE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20170068207
- Publication date Mar 9, 2017
- RICOH COMPANY, LTD.
- Eisuke SHIMIZU
- B32 - LAYERED PRODUCTS
Information Patent Application
BLADE AND IMAGE FORMING APPARATUS AND CLEANING DEVICE INCORPORATING...
- Publication number 20170038724
- Publication date Feb 9, 2017
- Eisuke SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PHOTOCONDUCTOR CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMIN...
- Publication number 20160320738
- Publication date Nov 3, 2016
- RICOH COMPANY, LTD.
- Takaaki TAWADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BLADE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160259293
- Publication date Sep 8, 2016
- RICOH COMPANY, LTD.
- Eisuke SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BLADE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20160109846
- Publication date Apr 21, 2016
- RICOH COMPANY, LTD.
- Eisuke SHIMIZU
- B32 - LAYERED PRODUCTS
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160097987
- Publication date Apr 7, 2016
- RICOH COMPANY, LTD.
- Hisashi KIKUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
BLADE MEMBER, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20150370217
- Publication date Dec 24, 2015
- RICOH COMPANY, LTD.
- Eisuke SHIMIZU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CHARGING ROLLER, CHARGING DEVICE AND IMAGE FORMING APPARATUS INCORP...
- Publication number 20150355566
- Publication date Dec 10, 2015
- RICOH COMPANY, LTD.
- Hisashi KIKUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20140341629
- Publication date Nov 20, 2014
- RICOH COMPANY, LTD.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
- Publication number 20140233998
- Publication date Aug 21, 2014
- RICOH COMPANY, LTD.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANER, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS USING TH...
- Publication number 20140193172
- Publication date Jul 10, 2014
- RICOH COMPANY, LTD.
- Takaaki TAWADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SYSTEM RESOURCE MANAGEMENT METHOD FOR VIRTUAL SYSTEM
- Publication number 20140165058
- Publication date Jun 12, 2014
- Hitachi, Ltd
- Hideyuki KATO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE FORMING DEVICE
- Publication number 20140161501
- Publication date Jun 12, 2014
- RICOH COMPANY, LTD.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE THEREFOR
- Publication number 20140119769
- Publication date May 1, 2014
- Hisashi KIKUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20130071163
- Publication date Mar 21, 2013
- RICOH COMPANY, LTD.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONNECTOR, CHARGING DEVICE INCORPORATING SAME, AND IMAGE FORMING AP...
- Publication number 20120207507
- Publication date Aug 16, 2012
- RICOH COMPANY, LTD.
- Keiji Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning device, and image forming apparatus, process cartridge, an...
- Publication number 20110229188
- Publication date Sep 22, 2011
- RICOH COMPANY, LTD.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning device, and image forming apparatus, process cartridge, an...
- Publication number 20110229186
- Publication date Sep 22, 2011
- RICOH COMPANY, LTD.
- Keiji Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning device, and image forming apparatus, process cartridge, an...
- Publication number 20110229233
- Publication date Sep 22, 2011
- RICOH COMPANY, LTD.
- Kazuhiko Watanabe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE FOR IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE P...
- Publication number 20100067945
- Publication date Mar 18, 2010
- Yoshiki HOZUMI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kazuhiko Watanabe

Person

Patents Grantslast 30 patents

Image forming apparatus

Powder conveying device and image forming apparatus incorporating t...

Cleaning blade, sheet conveyance roller, process cartridge, and ima...

Image forming apparatus

Image forming apparatus with a temperature change suppressor

Three-dimensional object fabrication method, fabrication apparatus,...

Cleaning blade, cleaning device, image forming apparatus, and proce...

Blade and image forming apparatus and cleaning device incorporating...

Cleaning blade, image forming apparatus, and process cartridge

Blade and image forming apparatus incorporating same

Blade, cleaning device, and image forming apparatus incorporating same

Blade and image forming apparatus incorporating same

Blade and image forming apparatus incorporating same

Image forming apparatus configured to modify a reference voltage co...

Charging roller, charging device and image forming apparatus incorp...

Image forming apparatus and process cartridge therefor

Blade member, image forming apparatus and process cartridge

Computer system and divided job processing method and program

Cleaning blade, image forming apparatus, and process cartridge

Cleaner, and process cartridge and image forming apparatus using th...

Image forming apparatus

Connector, charging device incorporating same, and image forming ap...

Cleaning device, and image forming apparatus, process cartridge, an...

Cleaning device, and image forming apparatus, process cartridge, an...

Cleaning device, and image forming apparatus, process cartridge, an...

Cleaning device, method of manufacturing the cleaning device, and p...

Cleaning device for image forming apparatus, and process cartridge...

Cleaning device, process cartridge, and image forming apparatus

Cleaning device for image forming apparatus and process cartridge p...

Lubricant supplier, process cartridge including same, and image for...

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

POWDER CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING T...

IMAGE FORMING APPARATUS

CLEANING BLADE, SHEET CONVEYANCE ROLLER, PROCESS CARTRIDGE, AND IMA...

IMAGE FORMING APPARATUS

THREE-DIMENSIONAL OBJECT FABRICATION METHOD, FABRICATION APPARATUS,...

PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS

CLEANING BLADE, CLEANING DEVICE, IMAGE FORMING APPARATUS, AND PROCE...

CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

BLADE, CLEANING DEVICE, AND IMAGE FORMING APPARATUS INCORPORATING SAME

BLADE AND IMAGE FORMING APPARATUS INCORPORATING SAME

BLADE AND IMAGE FORMING APPARATUS AND CLEANING DEVICE INCORPORATING...

PHOTOCONDUCTOR CLEANING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMIN...

BLADE AND IMAGE FORMING APPARATUS INCORPORATING SAME

BLADE AND IMAGE FORMING APPARATUS INCORPORATING SAME

IMAGE FORMING APPARATUS

BLADE MEMBER, IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

CHARGING ROLLER, CHARGING DEVICE AND IMAGE FORMING APPARATUS INCORP...

CLEANING BLADE, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE

CLEANER, AND PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS USING TH...

SYSTEM RESOURCE MANAGEMENT METHOD FOR VIRTUAL SYSTEM

IMAGE FORMING DEVICE

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE THEREFOR

IMAGE FORMING APPARATUS

CONNECTOR, CHARGING DEVICE INCORPORATING SAME, AND IMAGE FORMING AP...

Cleaning device, and image forming apparatus, process cartridge, an...

Cleaning device, and image forming apparatus, process cartridge, an...

Cleaning device, and image forming apparatus, process cartridge, an...

CLEANING DEVICE FOR IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE P...