Kenichi Hasegawa

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Heater, heating device, fixing device, and image forming apparatus
- Patent number 11,054,773
- Issue date Jul 6, 2021
- Ricoh Company, Ltd.
- Yuusuke Furuichi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus incorporating the same
- Patent number 10,795,289
- Issue date Oct 6, 2020
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 10,114,322
- Issue date Oct 30, 2018
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Pressure and pressure relief device, fixing device, and image formi...
- Patent number 10,054,885
- Issue date Aug 21, 2018
- Ricoh Company, Ltd.
- Jun 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
Fixing device and image forming apparatus including same
- Patent number 9,501,011
- Issue date Nov 22, 2016
- Ricoh Company, Ltd.
- Ippei Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus incorporating same
- Patent number 9,377,725
- Issue date Jun 28, 2016
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 9,310,733
- Issue date Apr 12, 2016
- Ricoh Company, Ltd.
- Hiroshi Yoshinaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 9,256,172
- Issue date Feb 9, 2016
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet guiding unit separating mechanism, fixing device with sheet g...
- Patent number 9,188,912
- Issue date Nov 17, 2015
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 9,128,426
- Issue date Sep 8, 2015
- Ricoh Company, Ltd.
- Ippei Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus
- Patent number 8,897,688
- Issue date Nov 25, 2014
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Compressed-air sheet separation mechanism and image forming apparat...
- Patent number 8,843,040
- Issue date Sep 23, 2014
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Fixing device and image forming apparatus incorporating same
- Patent number 8,843,044
- Issue date Sep 23, 2014
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus incorporating same
- Patent number 8,843,043
- Issue date Sep 23, 2014
- Ricoh Company, Ltd.
- Naoki Iwaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 8,831,494
- Issue date Sep 9, 2014
- Ricoh Company Limited
- Yutaka Ikebuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 8,811,837
- Issue date Aug 19, 2014
- Ricoh Company, Ltd.
- Hiroshi Yoshinaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device having a plurality of heat sources and a plurality of...
- Patent number 8,744,330
- Issue date Jun 3, 2014
- Ricoh Company, Ltd.
- Hiroshi Yoshinaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus incorporating same
- Patent number 8,744,331
- Issue date Jun 3, 2014
- Ricoh Company, Limited
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including removable fixing device
- Patent number 8,737,878
- Issue date May 27, 2014
- Ricoh Company, Ltd.
- Yoshiki Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 8,682,237
- Issue date Mar 25, 2014
- Ricoh Company, Ltd.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having fixing device with air nozzle for se...
- Patent number 8,660,474
- Issue date Feb 25, 2014
- Ricoh Company, Ltd.
- Takashi Seto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus incorporating same
- Patent number 8,655,244
- Issue date Feb 18, 2014
- Ricoh Company, Ltd.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus including same
- Patent number 8,630,572
- Issue date Jan 14, 2014
- Ricoh Company, Ltd.
- Ippei Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing unit and image forming apparatus including same
- Patent number 8,615,175
- Issue date Dec 24, 2013
- Ricoh Company, Ltd.
- Takahiro Imada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus employing the fixing device
- Patent number 8,606,135
- Issue date Dec 10, 2013
- Ricoh Company, Limited
- Ryota Yamashina
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Heat conduction unit, fixing device, and image forming apparatus
- Patent number 8,600,276
- Issue date Dec 3, 2013
- Ricoh Company, Limited
- Kenji Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus incorporating a fixing device and contact m...
- Patent number 8,594,549
- Issue date Nov 26, 2013
- Ricoh Company, Ltd.
- Toshihiko Shimokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device having a reflector and image forming apparatus incorp...
- Patent number 8,588,670
- Issue date Nov 19, 2013
- Ricoh Company, Ltd.
- Toshihiko Shimokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus incorporating same
- Patent number 8,583,019
- Issue date Nov 12, 2013
- Ricoh Company, Ltd.
- Kenji Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
HEATER, HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20200292973
- Publication date Sep 17, 2020
- Yuusuke Furuichi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SAME
- Publication number 20200089147
- Publication date Mar 19, 2020
- RICOH COMPANY, LTD.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20180059598
- Publication date Mar 1, 2018
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PRESSURE AND PRESSURE RELIEF DEVICE, FIXING DEVICE, AND IMAGE FORMI...
- Publication number 20170343942
- Publication date Nov 30, 2017
- RICOH COMPANY, LTD.
- Jun Okamoto
- 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 INCLUDING SAME
- Publication number 20150355586
- Publication date Dec 10, 2015
- Ippei Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LIQUID EJECTION HEAD AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20140239575
- Publication date Aug 28, 2014
- RICOH COMPANY, LTD.
- Kenichi HASEGAWA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
SHEET GUIDING UNIT SEPARATING MECHANISM, FIXING DEVICE WITH SHEET G...
- Publication number 20140193180
- Publication date Jul 10, 2014
- RICOH COMPANY, LTD.
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20140178092
- Publication date Jun 26, 2014
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20140119787
- Publication date May 1, 2014
- RICOH COMPANY, LTD.
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20140010578
- Publication date Jan 9, 2014
- RICOH COMPANY, LTD.
- Yasunori Ishigaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20130251430
- Publication date Sep 26, 2013
- Ippei Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20130202335
- Publication date Aug 8, 2013
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20120251208
- Publication date Oct 4, 2012
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
MEDIA SEPARATOR, FIXING DEVICE, AND IMAGE FORMING APPARATUS
- Publication number 20120044516
- Publication date Feb 23, 2012
- Fumihiro HIROSE
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20120014725
- Publication date Jan 19, 2012
- RICOH COMPANY, LTD.
- Takashi Seto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Compressed-air sheet separation mechanism and image forming apparat...
- Publication number 20110305491
- Publication date Dec 15, 2011
- RICOH COMPANY, LTD.
- Kenichi Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20110274453
- Publication date Nov 10, 2011
- Toshihiko Shimokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS INCLUDING REMOVABLE FIXING DEVICE
- Publication number 20110229200
- Publication date Sep 22, 2011
- Yoshiki YAMAGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20110222875
- Publication date Sep 15, 2011
- Takahiro Imada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20110222934
- Publication date Sep 15, 2011
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20110222931
- Publication date Sep 15, 2011
- Akira Shinshi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20110222929
- Publication date Sep 15, 2011
- Ippei Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus including same
- Publication number 20110217056
- Publication date Sep 8, 2011
- RICOH COMPANY, LTD.
- Hiroshi Yoshinaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus including same
- Publication number 20110217091
- Publication date Sep 8, 2011
- RICOH COMPANY, LTD.
- Fumihiro Hirose
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20110217094
- Publication date Sep 8, 2011
- Kenichi HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20110217095
- Publication date Sep 8, 2011
- Kenji Ishii
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus including same
- Publication number 20110217057
- Publication date Sep 8, 2011
- RICOH COMPANY, LTD.
- Hiroshi Yoshinaga
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME
- Publication number 20110211876
- Publication date Sep 1, 2011
- Naoki IWAYA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20110206425
- Publication date Aug 25, 2011
- Takashi Seto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kenichi Hasegawa

Person

Patents Grantslast 30 patents

Heater, heating device, fixing device, and image forming apparatus

Fixing device and image forming apparatus incorporating the same

Fixing device and image forming apparatus

Pressure and pressure relief device, fixing device, and image formi...

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

Fixing device and image forming apparatus including same

Fixing device and image forming apparatus incorporating same

Fixing device and image forming apparatus including same

Fixing device and image forming apparatus including same

Sheet guiding unit separating mechanism, fixing device with sheet g...

Fixing device and image forming apparatus including same

Fixing device and image forming apparatus

Compressed-air sheet separation mechanism and image forming apparat...

Fixing device and image forming apparatus incorporating same

Fixing device and image forming apparatus incorporating same

Fixing device and image forming apparatus including same

Fixing device and image forming apparatus including same

Fixing device having a plurality of heat sources and a plurality of...

Fixing device and image forming apparatus incorporating same

Image forming apparatus including removable fixing device

Fixing device and image forming apparatus including same

Image forming apparatus having fixing device with air nozzle for se...

Fixing device and image forming apparatus incorporating same

Fixing device and image forming apparatus including same

Fixing unit and image forming apparatus including same

Fixing device and image forming apparatus employing the fixing device

Heat conduction unit, fixing device, and image forming apparatus

Image forming apparatus incorporating a fixing device and contact m...

Fixing device having a reflector and image forming apparatus incorp...

Fixing device and image forming apparatus incorporating same

Patents Applicationslast 30 patents

HEATER, HEATING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING THE SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS

PRESSURE AND PRESSURE RELIEF DEVICE, FIXING DEVICE, AND IMAGE FORMI...

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

LIQUID EJECTION HEAD AND IMAGE FORMING APPARATUS INCLUDING SAME

SHEET GUIDING UNIT SEPARATING MECHANISM, FIXING DEVICE WITH SHEET G...

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

MEDIA SEPARATOR, FIXING DEVICE, AND IMAGE FORMING APPARATUS

Image forming apparatus

Compressed-air sheet separation mechanism and image forming apparat...

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

IMAGE FORMING APPARATUS INCLUDING REMOVABLE FIXING DEVICE

FIXING UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

Fixing device and image forming apparatus including same

Fixing device and image forming apparatus including same

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

Fixing device and image forming apparatus including same

FIXING DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

IMAGE FORMING APPARATUS