Yasuhiro Maehata

Person

Hachioji, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus
- Patent number 11,022,921
- Issue date Jun 1, 2021
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Planetary gear assembly, drive unit including the planetary gear as...
- Patent number 10,323,719
- Issue date Jun 18, 2019
- Ricoh Company, Ltd.
- Hiromichi Matsuda
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Cleaning device, process cartridge incorporating the cleaning devic...
- Patent number 10,042,314
- Issue date Aug 7, 2018
- Ricoh Company, Ltd.
- Daisuke Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device, and image forming apparatus and process unit incor...
- Patent number 10,018,941
- Issue date Jul 10, 2018
- Ricoh Company, Ltd.
- Daisuke Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner conveyance device and image forming apparatus
- Patent number 9,983,512
- Issue date May 29, 2018
- Ricoh Company, Ltd.
- Yusuke Ishizuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device including roller, and image forming apparatus and process ca...
- Patent number 9,958,823
- Issue date May 1, 2018
- Ricoh Company, Ltd.
- Daisuke Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus which controls the rotation speed of a lubr...
- Patent number 9,798,288
- Issue date Oct 24, 2017
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 9,696,648
- Issue date Jul 4, 2017
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lubricant supplying device, process cartridge and image forming app...
- Patent number 9,383,715
- Issue date Jul 5, 2016
- Ricoh Company, Ltd.
- Kenji Honjoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Driving device and image forming apparatus including the driving de...
- Patent number 9,121,477
- Issue date Sep 1, 2015
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rotating-body driving device and image forming apparatus
- Patent number 9,042,784
- Issue date May 26, 2015
- Ricoh Company, Limited
- Hiromichi Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet conveyance device and image forming apparatus including same
- Patent number 8,948,679
- Issue date Feb 3, 2015
- Ricoh Company, Ltd.
- Hiroaki Murakami
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Rotary body driver with planetary gear transmission and image formi...
- Patent number 8,864,620
- Issue date Oct 21, 2014
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Drive transmission unit and image forming apparatus including same
- Patent number 8,845,472
- Issue date Sep 30, 2014
- Ricoh Company, Ltd.
- Hiromichi Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Drive device and image forming apparatus including same
- Patent number 8,747,276
- Issue date Jun 10, 2014
- Ricoh Company, Ltd.
- Keisuke Shimizu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Planetary gear unit and image forming apparatus including same
- Patent number 8,523,730
- Issue date Sep 3, 2013
- Ricoh Company, Ltd.
- Katsuaki Miyawaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Image forming apparatus
- Patent number 8,447,212
- Issue date May 21, 2013
- Ricoh Company, Ltd.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device
- Patent number 8,346,111
- Issue date Jan 1, 2013
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,340,552
- Issue date Dec 25, 2012
- Ricoh Company, Limited
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,295,736
- Issue date Oct 23, 2012
- Ricoh Company, Limited
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multicolor imaging system
- Patent number 8,254,813
- Issue date Aug 28, 2012
- Ricoh Company, Ltd.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Driving device and image forming apparatus
- Patent number 8,113,079
- Issue date Feb 14, 2012
- Ricoh Company, Limited
- Kazuki Suzuki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 8,095,028
- Issue date Jan 10, 2012
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with cartridge loading device
- Patent number 7,917,058
- Issue date Mar 29, 2011
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing device having carbon lamp and reflector
- Patent number 7,860,442
- Issue date Dec 28, 2010
- Ricoh Company, Ltd.
- Tetsuji Nishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including phase difference correction with...
- Patent number 7,706,723
- Issue date Apr 27, 2010
- Ricoh Company, Ltd.
- Masahiro Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Connector and image forming apparatus including the same
- Patent number 7,702,252
- Issue date Apr 20, 2010
- Ricoh Company, Limited
- Yasuhiro Maehata
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20200326648
- Publication date Oct 15, 2020
- RICOH COMPANY, LTD.
- Yasuhiro MAEHATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, PROCESS CARTRIDGE INCORPORATING THE CLEANING DEVIC...
- Publication number 20180046128
- Publication date Feb 15, 2018
- RICOH COMPANY, LTD.
- Daisuke TOMITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CLEANING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS UNIT INCOR...
- Publication number 20170269511
- Publication date Sep 21, 2017
- Daisuke TOMITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170261887
- Publication date Sep 14, 2017
- RICOH COMPANY, LTD.
- Yusuke ISHIZUKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVICE INCLUDING ROLLER, AND IMAGE FORMING APPARATUS AND PROCESS CA...
- Publication number 20170102663
- Publication date Apr 13, 2017
- Daisuke TOMITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160334757
- Publication date Nov 17, 2016
- Yasuhiro MAEHATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PLANETARY GEAR ASSEMBLY, DRIVE UNIT INCLUDING THE PLANETARY GEAR AS...
- Publication number 20160298730
- Publication date Oct 13, 2016
- RICOH COMPANY, LTD.
- Hiromichi Matsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20160209771
- Publication date Jul 21, 2016
- RICOH COMPANY, LTD.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LUBRICANT SUPPLYING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APP...
- Publication number 20160139555
- Publication date May 19, 2016
- Kenji Honjoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRIVING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE DRIVING DE...
- Publication number 20140073476
- Publication date Mar 13, 2014
- RICOH COMPANY, LTD.
- Yasuhiro MAEHATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ROTATING-BODY DRIVING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20140056618
- Publication date Feb 27, 2014
- RICOH COMPANY, LIMITED
- Hiromichi MATSUDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PLANETARY GEAR ASSEMBLY, DRIVE UNIT INCLUDING THE PLANETARY GEAR AS...
- Publication number 20130260952
- Publication date Oct 3, 2013
- RICOH COMPANY, LTD.
- Hiromichi MATSUDA
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
ROTARY BODY DRIVER WITH PLANETARY GEAR TRANSMISSION AND IMAGE FORMI...
- Publication number 20130109529
- Publication date May 2, 2013
- Yasuhiro MAEHATA
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
DRIVE TRANSMISSION UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20130065725
- Publication date Mar 14, 2013
- Hiromichi MATSUDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DRIVE DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20130017924
- Publication date Jan 17, 2013
- RICOH COMPANY, LTD.
- Keisuke Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PLANETARY GEAR UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME
- Publication number 20120196720
- Publication date Aug 2, 2012
- RICOH COMPANY, LTD.
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming device
- Publication number 20110058827
- Publication date Mar 10, 2011
- RICOH COMPANY, LTD.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Sheet conveyance device and image forming apparatus including same
- Publication number 20110058870
- Publication date Mar 10, 2011
- Ricoh Company, Ltd.
- Hiroaki Murakami
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Image forming apparatus
- Publication number 20110044724
- Publication date Feb 24, 2011
- RICOH COMPANY, LTD.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Multicolor imaging system
- Publication number 20100303504
- Publication date Dec 2, 2010
- Ricoh Company, Ltd.
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20100239318
- Publication date Sep 23, 2010
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20100226676
- Publication date Sep 9, 2010
- Ricoh Company, Limited
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20100183322
- Publication date Jul 22, 2010
- Ricoh Company, Limited
- Noriaki Funamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and image forming method
- Publication number 20090317109
- Publication date Dec 24, 2009
- Ricoh Company, Ltd.
- Yasuhisa Ehara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Driving device and image forming apparatus
- Publication number 20080282839
- Publication date Nov 20, 2008
- Ricoh Company, Limited
- Kazuki Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20080260420
- Publication date Oct 23, 2008
- Ricoh Company, Ltd.
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FIXING DEVICE AND IMAGE FORMATION APPARATUS USING THE SAME
- Publication number 20080124152
- Publication date May 29, 2008
- Tetsuji Nishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080089713
- Publication date Apr 17, 2008
- Masahiro Ishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Connector and image forming apparatus including the same
- Publication number 20080069635
- Publication date Mar 20, 2008
- Yasuhiro Maehata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Yasuhiro Maehata

Person

Patents Grantslast 30 patents

Image forming apparatus

Planetary gear assembly, drive unit including the planetary gear as...

Cleaning device, process cartridge incorporating the cleaning devic...

Cleaning device, and image forming apparatus and process unit incor...

Toner conveyance device and image forming apparatus

Device including roller, and image forming apparatus and process ca...

Image forming apparatus which controls the rotation speed of a lubr...

Image forming apparatus

Lubricant supplying device, process cartridge and image forming app...

Driving device and image forming apparatus including the driving de...

Rotating-body driving device and image forming apparatus

Sheet conveyance device and image forming apparatus including same

Rotary body driver with planetary gear transmission and image formi...

Drive transmission unit and image forming apparatus including same

Drive device and image forming apparatus including same

Planetary gear unit and image forming apparatus including same

Image forming apparatus

Image forming device

Image forming apparatus

Image forming apparatus

Multicolor imaging system

Driving device and image forming apparatus

Image forming apparatus and image forming method

Image forming apparatus with cartridge loading device

Image fixing device having carbon lamp and reflector

Image forming apparatus including phase difference correction with...

Connector and image forming apparatus including the same

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

CLEANING DEVICE, PROCESS CARTRIDGE INCORPORATING THE CLEANING DEVIC...

CLEANING DEVICE, AND IMAGE FORMING APPARATUS AND PROCESS UNIT INCOR...

TONER CONVEYANCE DEVICE AND IMAGE FORMING APPARATUS

DEVICE INCLUDING ROLLER, AND IMAGE FORMING APPARATUS AND PROCESS CA...

IMAGE FORMING APPARATUS

PLANETARY GEAR ASSEMBLY, DRIVE UNIT INCLUDING THE PLANETARY GEAR AS...

IMAGE FORMING APPARATUS

LUBRICANT SUPPLYING DEVICE, PROCESS CARTRIDGE AND IMAGE FORMING APP...

DRIVING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE DRIVING DE...

ROTATING-BODY DRIVING DEVICE AND IMAGE FORMING APPARATUS

PLANETARY GEAR ASSEMBLY, DRIVE UNIT INCLUDING THE PLANETARY GEAR AS...

ROTARY BODY DRIVER WITH PLANETARY GEAR TRANSMISSION AND IMAGE FORMI...

DRIVE TRANSMISSION UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME

DRIVE DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME

PLANETARY GEAR UNIT AND IMAGE FORMING APPARATUS INCLUDING SAME

Image forming device

Sheet conveyance device and image forming apparatus including same

Image forming apparatus

Multicolor imaging system

Image forming apparatus

Image forming apparatus

Image forming apparatus

Image forming apparatus and image forming method

Driving device and image forming apparatus

Image forming apparatus

IMAGE FIXING DEVICE AND IMAGE FORMATION APPARATUS USING THE SAME

IMAGE FORMING APPARATUS

Connector and image forming apparatus including the same