Seiji Saitoh

Person

Chiba-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Contact-separation device, fixing device, and image forming apparatus
- Patent number 11,841,652
- Issue date Dec 12, 2023
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pressing device, fixing device, and image forming apparatus
- Patent number 11,789,389
- Issue date Oct 17, 2023
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 11,693,362
- Issue date Jul 4, 2023
- Ricoh Company, Ltd.
- Hiromasa Takagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Heating device, fixing device and image forming apparatus
- Patent number 11,644,773
- Issue date May 9, 2023
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device including at least one temperature detector and a dev...
- Patent number 10,955,777
- Issue date Mar 23, 2021
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 10,788,775
- Issue date Sep 29, 2020
- Ricoh Company, Ltd.
- Jun Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Separation member, separation device, fixing device, and image form...
- Patent number 10,481,530
- Issue date Nov 19, 2019
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device including a nip formation pad with a porous structure...
- Patent number 10,317,828
- Issue date Jun 11, 2019
- Ricoh Company, Ltd.
- Yutaka Naitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,101,691
- Issue date Oct 16, 2018
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,095,166
- Issue date Oct 9, 2018
- Ricoh Company, Ltd.
- Masami Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,088,786
- Issue date Oct 2, 2018
- Ricoh Company, Ltd.
- Keisuke Kubota
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Separation device, fixing device, and image forming apparatus
- Patent number 10,042,294
- Issue date Aug 7, 2018
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including a fixing belt,...
- Patent number 10,012,937
- Issue date Jul 3, 2018
- Ricoh Company, Ltd.
- Shuutaroh Yuasa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,012,936
- Issue date Jul 3, 2018
- Ricoh Company, Ltd.
- Kensuke Yamaji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus with a movable presser wh...
- Patent number 9,996,035
- Issue date Jun 12, 2018
- Ricoh Company, Ltd.
- Masami Okamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including a rotation load...
- Patent number 9,715,201
- Issue date Jul 25, 2017
- Ricoh Company, Ltd.
- Takamasa Hase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, fixing device including the cleaning device, and i...
- Patent number 9,229,381
- Issue date Jan 5, 2016
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device having a fixing pad and a pressing pad and image form...
- Patent number 8,929,788
- Issue date Jan 6, 2015
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus using same
- Patent number 8,331,820
- Issue date Dec 11, 2012
- Ricoh Company, Limited
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming with an improved warm-up con...
- Patent number 7,493,059
- Issue date Feb 17, 2009
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device including guide unit and image forming apparatus
- Patent number 6,816,701
- Issue date Nov 9, 2004
- Ricoh Company, Ltd.
- Seiji Saitoh
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Automatic component replacement detecting system in an image formin...
- Patent number 6,104,889
- Issue date Aug 15, 2000
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 5,722,012
- Issue date Feb 24, 1998
- Ricoh Company, Ltd.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240310776
- Publication date Sep 19, 2024
- Jun OKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PRESSING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230244167
- Publication date Aug 3, 2023
- RICOH COMPANY, LTD.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20230008258
- Publication date Jan 12, 2023
- Hiromasa TAKAGI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONTACT-SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20230004107
- Publication date Jan 5, 2023
- RICOH COMPANY, LTD.
- Seiji SAITOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
HEATING DEVICE, FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20220091546
- Publication date Mar 24, 2022
- RICOH COMPANY, LTD.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20200241452
- Publication date Jul 30, 2020
- RICOH COMPANY, LTD.
- Seiji SAITOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20200241453
- Publication date Jul 30, 2020
- RICOH COMPANY, LTD.
- Jun OKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SEPARATION MEMBER, SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORM...
- Publication number 20180299809
- Publication date Oct 18, 2018
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20180267449
- Publication date Sep 20, 2018
- Yutaka NAITOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170357197
- Publication date Dec 14, 2017
- Masami OKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170269522
- Publication date Sep 21, 2017
- RICOH COMPANY, LTD.
- Keisuke KUBOTA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170269525
- Publication date Sep 21, 2017
- Masami OKAMOTO
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170269524
- Publication date Sep 21, 2017
- Kensuke YAMAJI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170269526
- Publication date Sep 21, 2017
- Shuutaroh YUASA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20170235259
- Publication date Aug 17, 2017
- Seiji SAITOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170003633
- Publication date Jan 5, 2017
- Takamasa HASE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20160378032
- Publication date Dec 29, 2016
- Seiji SAITOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
SHEET SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20160209789
- Publication date Jul 21, 2016
- Ricoh Company, Ltd.
- Kenji NOZAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, FIXING DEVICE INCLUDING THE CLEANING DEVICE, AND I...
- Publication number 20150125190
- Publication date May 7, 2015
- RICOH COMPANY, LTD.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing Device And Image Forming Apparatus Incorporating Same
- Publication number 20120224896
- Publication date Sep 6, 2012
- RICOH COMPANY, LTD.
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME
- Publication number 20110064440
- Publication date Mar 17, 2011
- Seiji SAITOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for image forming with an improved warm-up con...
- Publication number 20060239707
- Publication date Oct 26, 2006
- Seiji Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus
- Publication number 20030007817
- Publication date Jan 9, 2003
- Seiji Saitoh
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Seiji Saitoh

Person

Patents Grantslast 30 patents

Contact-separation device, fixing device, and image forming apparatus

Pressing device, fixing device, and image forming apparatus

Image forming apparatus

Heating device, fixing device and image forming apparatus

Fixing device including at least one temperature detector and a dev...

Fixing device and image forming apparatus including same

Separation member, separation device, fixing device, and image form...

Fixing device including a nip formation pad with a porous structure...

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Fixing device and image forming apparatus

Separation device, fixing device, and image forming apparatus

Fixing device and image forming apparatus including a fixing belt,...

Fixing device and image forming apparatus

Fixing device and image forming apparatus with a movable presser wh...

Fixing device and image forming apparatus including a rotation load...

Cleaning device, fixing device including the cleaning device, and i...

Fixing device having a fixing pad and a pressing pad and image form...

Fixing device and image forming apparatus using same

Method and apparatus for image forming with an improved warm-up con...

Fixing device including guide unit and image forming apparatus

Automatic component replacement detecting system in an image formin...

Image forming apparatus

Patents Applicationslast 30 patents

FIXING DEVICE AND IMAGE FORMING APPARATUS

PRESSING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

CONTACT-SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

HEATING DEVICE, FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

SEPARATION MEMBER, SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORM...

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

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

SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS

SHEET SEPARATION DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

CLEANING DEVICE, FIXING DEVICE INCLUDING THE CLEANING DEVICE, AND I...

Fixing Device And Image Forming Apparatus Incorporating Same

FIXING DEVICE AND IMAGE FORMING APPARATUS USING SAME

Method and apparatus for image forming with an improved warm-up con...

Fixing device and image forming apparatus