Keitaro Shoji

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sheet conveyor and image forming apparatus incorporating the sheet...
- Patent number 12,210,303
- Issue date Jan 28, 2025
- Ricoh Company, Ltd.
- Keitaro Shoji
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Heating device, fixing device, and image forming apparatus with a s...
- Patent number 12,174,565
- Issue date Dec 24, 2024
- Ricoh Company, Ltd.
- Yuma Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Conveyance device and image forming apparatus
- Patent number 12,085,877
- Issue date Sep 10, 2024
- Ricoh Company, Ltd.
- Keitaro Shoji
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Heating device, fixing device, and image forming apparatus
- Patent number 12,025,935
- Issue date Jul 2, 2024
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Heating device, fixing device, and image forming apparatus
- Patent number 11,934,126
- Issue date Mar 19, 2024
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and cleaning method
- Patent number 11,500,314
- Issue date Nov 15, 2022
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,678,170
- Issue date Jun 9, 2020
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,156,818
- Issue date Dec 18, 2018
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,152,006
- Issue date Dec 11, 2018
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,067,449
- Issue date Sep 4, 2018
- Ricoh Company, Ltd.
- Ryohei Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,061,235
- Issue date Aug 28, 2018
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus incorporating fixing device
- Patent number 10,012,932
- Issue date Jul 3, 2018
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,904,220
- Issue date Feb 27, 2018
- Ricoh Company, Ltd.
- Kazuya Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,804,546
- Issue date Oct 31, 2017
- Ricoh Company, Ltd.
- Kazuya Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device including outlet guide member and image forming appar...
- Patent number 9,753,417
- Issue date Sep 5, 2017
- Ricoh Company, Ltd.
- Yoshiki Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,618,888
- Issue date Apr 11, 2017
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device with nip forming member having a high thermal-conduct...
- Patent number 9,599,940
- Issue date Mar 21, 2017
- Ricoh Company, Ltd.
- Motoyoshi Yamano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,581,948
- Issue date Feb 28, 2017
- Ricoh Company, Ltd.
- Hiromasa Takagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,575,447
- Issue date Feb 21, 2017
- Ricoh Company, Ltd.
- Yutaka Ikebuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Recording media smoothness detector and image forming apparatus inc...
- Patent number 9,557,697
- Issue date Jan 31, 2017
- Ricoh Company, Ltd.
- Takumi Waida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 9,529,308
- Issue date Dec 27, 2016
- Ricoh Company, Ltd.
- Yutaka Ikebuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including a multi-layer n...
- Patent number 9,529,309
- Issue date Dec 27, 2016
- Ricoh Company, Ltd.
- Kenji Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus with a rotatable light sh...
- Patent number 9,494,901
- Issue date Nov 15, 2016
- Ricoh Company, Ltd.
- Kazuya Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,329,545
- Issue date May 3, 2016
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,298,146
- Issue date Mar 29, 2016
- Ricoh Company, Limited
- Arinobu Yoshiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 9,291,966
- Issue date Mar 22, 2016
- Ricoh Company, Ltd.
- Keitaro Shoji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a smoothness detector
- Patent number 9,250,592
- Issue date Feb 2, 2016
- Ricoh Company, Ltd.
- Ryota Yamashina
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20240248427
- Publication date Jul 25, 2024
- RICOH COMPANY, LTD.
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230384719
- Publication date Nov 30, 2023
- RICOH COMPANY, LTD.
- Yuma MATSUMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20230367252
- Publication date Nov 16, 2023
- RICOH COMPANY, LTD.
- Yuma MATSUMOTO
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230288852
- Publication date Sep 14, 2023
- RICOH COMPANY, LTD.
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET...
- Publication number 20230288850
- Publication date Sep 14, 2023
- RICOH COMPANY, LTD.
- Keitaro SHOJI
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20230266699
- Publication date Aug 24, 2023
- RICOH COMPANY LTD.
- Keitaro Shoji
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230205118
- Publication date Jun 29, 2023
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230010218
- Publication date Jan 12, 2023
- RICOH COMPANY, LTD.
- Keitaro SHOJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND CLEANING METHOD
- Publication number 20220043376
- Publication date Feb 10, 2022
- Ricoh Company, Ltd.
- Keitaro SHOJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20200159149
- Publication date May 21, 2020
- RICOH COMPANY, LTD.
- Takumi WAIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20190094764
- Publication date Mar 28, 2019
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
NIP-FORMING MEMBER, FIXING UNIT, AND IMAGE FORMING APPARATUS
- Publication number 20170255149
- Publication date Sep 7, 2017
- Hiromasa TAKAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170248879
- Publication date Aug 31, 2017
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170248885
- Publication date Aug 31, 2017
- Kazuya SAITO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS INCORPORATING FIXING DEVICE
- Publication number 20170212457
- Publication date Jul 27, 2017
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170205742
- Publication date Jul 20, 2017
- Keitaro SHOJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170017182
- Publication date Jan 19, 2017
- Kazuya Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170010571
- Publication date Jan 12, 2017
- Ryohei MATSUDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160378033
- Publication date Dec 29, 2016
- Yasunori ISHIGAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160274516
- Publication date Sep 22, 2016
- RICOH COMPANY, LTD.
- Yoshiki YAMAGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160223964
- Publication date Aug 4, 2016
- Yutaka IKEBUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160161890
- Publication date Jun 9, 2016
- Keitaro SHOJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160154350
- Publication date Jun 2, 2016
- RICOH COMPANY, LTD.
- Kazuya Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20160124359
- Publication date May 5, 2016
- RICOH COMPANY, LTD.
- Yutaka Ikebuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150261157
- Publication date Sep 17, 2015
- Motoyoshi YAMANO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
RECORDING MEDIA SMOOTHNESS DETECTOR AND IMAGE FORMING APPARATUS INC...
- Publication number 20150261161
- Publication date Sep 17, 2015
- Takumi WAIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150261155
- Publication date Sep 17, 2015
- Arinobu YOSHIURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150205241
- Publication date Jul 23, 2015
- Ryota YAMASHINA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150125193
- Publication date May 7, 2015
- Kenji ISHII
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20150110531
- Publication date Apr 23, 2015
- Hiromasa TAKAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Keitaro Shoji

Person

Patents Grantslast 30 patents

Sheet conveyor and image forming apparatus incorporating the sheet...

Heating device, fixing device, and image forming apparatus with a s...

Conveyance device and image forming apparatus

Heating device, fixing device, and image forming apparatus

Heating device, fixing device, and image forming apparatus

Image forming apparatus and cleaning method

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Image forming apparatus incorporating fixing device

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device including outlet guide member and image forming appar...

Fixing device and image forming apparatus

Fixing device with nip forming member having a high thermal-conduct...

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Recording media smoothness detector and image forming apparatus inc...

Image forming apparatus and image forming method

Fixing device and image forming apparatus including a multi-layer n...

Fixing device and image forming apparatus with a rotatable light sh...

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Image forming apparatus having a smoothness detector

Patents Applicationslast 30 patents

HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS

HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

SHEET CONVEYOR AND IMAGE FORMING APPARATUS INCORPORATING THE SHEET...

CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS

HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND CLEANING METHOD

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS

NIP-FORMING MEMBER, FIXING UNIT, AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS INCORPORATING FIXING DEVICE

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

FIXING DEVICE AND IMAGE FORMING APPARATUS

RECORDING MEDIA SMOOTHNESS DETECTOR AND IMAGE FORMING APPARATUS INC...

FIXING DEVICE AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS