Nobutaka Takeuchi

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Toner pattern density correction in an image forming apparatus
- Patent number 9,436,135
- Issue date Sep 6, 2016
- Ricoh Company, Ltd.
- Keita Sone
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus that performs parameter correction processi...
- Patent number 9,323,200
- Issue date Apr 26, 2016
- Ricoh Company, Ltd.
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical sensor with positioning reference surface and image forming...
- Patent number 8,811,846
- Issue date Aug 19, 2014
- Ricoh Company, Ltd.
- Akira Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method for controlling image density
- Patent number 8,503,893
- Issue date Aug 6, 2013
- Ricoh Company, Ltd.
- Akira Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Optical sensor and image forming apparatus
- Patent number 8,455,851
- Issue date Jun 4, 2013
- Ricoh Company, Limited
- Kayoko Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Supply control unit and image forming apparatus
- Patent number 8,254,795
- Issue date Aug 28, 2012
- Ricoh Company, Limited
- Eichi Koizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including developing unit and toner supplyi...
- Patent number 8,238,768
- Issue date Aug 7, 2012
- Ricoh Company, Limited
- Eichi Koizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image-density control method
- Patent number 8,233,813
- Issue date Jul 31, 2012
- Ricoh Company, Limited
- Akira Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a developer replenishing device w...
- Patent number 8,180,261
- Issue date May 15, 2012
- Ricoh Company, Ltd.
- Satoshi Muramatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image density control method
- Patent number 8,175,471
- Issue date May 8, 2012
- Ricoh Company, Ltd.
- Kentaroh Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus capable of reducing a lengthy duration of a...
- Patent number 8,155,543
- Issue date Apr 10, 2012
- Ricoh Co., Ltd.
- Hitoshi Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge including developing unit and incorporated in ima...
- Patent number 8,145,100
- Issue date Mar 27, 2012
- Ricoh Company, Ltd.
- Yushi Hirayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method of adjusting charge bias
- Patent number 8,103,181
- Issue date Jan 24, 2012
- Ricoh Company, Ltd.
- Hitoshi Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image quality correction method used th...
- Patent number 8,099,006
- Issue date Jan 17, 2012
- Ricoh Company Limited
- Kohta Fujimori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus capable of efficient toner concentration co...
- Patent number 8,095,025
- Issue date Jan 10, 2012
- Ricoh Company Limited
- Hitoshi Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image density control method
- Patent number 8,045,874
- Issue date Oct 25, 2011
- Ricoh Company Limited
- Akira Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image density control method
- Patent number 8,027,605
- Issue date Sep 27, 2011
- Ricoh Company, Ltd.
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner replenishment determination device of an image forming apparatus
- Patent number 8,009,997
- Issue date Aug 30, 2011
- Ricoh Company, Ltd.
- Osamu Ariizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image density control method
- Patent number 7,929,873
- Issue date Apr 19, 2011
- Ricoh Company Limited
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Reuse method and a reusable device for an image forming apparatus h...
- Patent number 7,903,986
- Issue date Mar 8, 2011
- Ricoh Company Limited
- Kayoko Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus for correcting a toner density target value
- Patent number 7,885,556
- Issue date Feb 8, 2011
- Ricoh Company, Ltd.
- Kohta Fujimori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image density control method
- Patent number 7,881,629
- Issue date Feb 1, 2011
- Ricoh Company, Ltd.
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method and apparatus for image forming capable of accurately detect...
- Patent number 7,821,677
- Issue date Oct 26, 2010
- Ricoh Company, Ltd.
- Kayoko Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a two component developer, toner densi...
- Patent number 7,809,291
- Issue date Oct 5, 2010
- Ricoh Company, Ltd.
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge therefore having a cl...
- Patent number 7,809,322
- Issue date Oct 5, 2010
- Ricoh Company, Ltd.
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method of adjusting charge bias
- Patent number 7,778,560
- Issue date Aug 17, 2010
- Ricoh Company, Ltd.
- Hitoshi Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with toner density control
- Patent number 7,747,182
- Issue date Jun 29, 2010
- Ricoh Company, Ltd.
- Shinji Kato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit and image forming apparatus which forces consumptio...
- Patent number 7,672,602
- Issue date Mar 2, 2010
- Ricoh Company, Limited
- Osamu Ariizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 7,668,471
- Issue date Feb 23, 2010
- Ricoh Company Limited
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device including a toner pattern forming unit
- Patent number 7,664,413
- Issue date Feb 16, 2010
- Ricoh Company, Limited
- Kazumi Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150362868
- Publication date Dec 17, 2015
- RICOH COMPANY, LTD.
- Keita Sone
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150220032
- Publication date Aug 6, 2015
- Nobutaka TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical sensor and image forming apparatus incorporating optical se...
- Publication number 20110200349
- Publication date Aug 18, 2011
- RICOH COMPANY, LTD.
- Akira Yoshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
- Publication number 20110052239
- Publication date Mar 3, 2011
- Kayoko Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FOMRING APARATUS AND METHOD OF ADJUSTING CHARGE BIAS
- Publication number 20100278549
- Publication date Nov 4, 2010
- Hitoshi Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING IMAGE DENSITY TH...
- Publication number 20100226664
- Publication date Sep 9, 2010
- Akira YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20100086320
- Publication date Apr 8, 2010
- Eichi KOIZUMI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20100086322
- Publication date Apr 8, 2010
- Eichi KOIZUMI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE-DENSITY CONTROL METHOD
- Publication number 20090324267
- Publication date Dec 31, 2009
- Akira YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
REUSE METHOD AND IMAGE FORMING APPARATUS
- Publication number 20090279907
- Publication date Nov 12, 2009
- Kayoko Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE QUALITY CORRECTION METHOD USED TH...
- Publication number 20090263150
- Publication date Oct 22, 2009
- Kohta Fujimori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD
- Publication number 20090202263
- Publication date Aug 13, 2009
- Akira YOSHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PROCESS CARTRIDGE INCLUDING DEVELOPING UNIT AND INCORPORATED IN IMA...
- Publication number 20090190960
- Publication date Jul 30, 2009
- Yushi Hirayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS INCLUDING A DEVELOPER REPLENISHING DEVICE F...
- Publication number 20090185832
- Publication date Jul 23, 2009
- Satoshi Muramatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD
- Publication number 20090110413
- Publication date Apr 30, 2009
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING METHOD AND APPARATUS HAVING A UNIT FOR CONVEYING TONE...
- Publication number 20090041520
- Publication date Feb 12, 2009
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS CAPABLE OF EFFICIENT TONER CONCENTRATION CO...
- Publication number 20080253793
- Publication date Oct 16, 2008
- Hitoshi ISHIBASHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD
- Publication number 20080205923
- Publication date Aug 28, 2008
- Nobutaka TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD
- Publication number 20080145078
- Publication date Jun 19, 2008
- Kentaroh TOMITA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD
- Publication number 20080124107
- Publication date May 29, 2008
- Nobutaka TAKEUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD OF ADJUSTING CHARGE BIAS
- Publication number 20080031646
- Publication date Feb 7, 2008
- Hitoshi Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20080025742
- Publication date Jan 31, 2008
- Shinji Kato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE, AND PROCESS UNIT AND IMAGE FORMING APPARATUS USI...
- Publication number 20070286617
- Publication date Dec 13, 2007
- Kayoko Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20070269228
- Publication date Nov 22, 2007
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS EFFECTIVELY CONDUCTING A PROCESS CONTROL
- Publication number 20070230979
- Publication date Oct 4, 2007
- Shin Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE DENSITY CONTROL METHOD AND IMAGE FORMING APPARATUS
- Publication number 20070122168
- Publication date May 31, 2007
- Kayoko Tanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING AN IMAGE QUALITY
- Publication number 20070122171
- Publication date May 31, 2007
- Kohta Fujimori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and image density control method
- Publication number 20070122169
- Publication date May 31, 2007
- Ricoh Company, Limited
- Kiichirou Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20070116480
- Publication date May 24, 2007
- Nobutaka Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming device
- Publication number 20070116483
- Publication date May 24, 2007
- Ricoh Company, Limited
- Kazumi Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Nobutaka Takeuchi

Person

Patents Grantslast 30 patents

Toner pattern density correction in an image forming apparatus

Image forming apparatus that performs parameter correction processi...

Optical sensor with positioning reference surface and image forming...

Image forming apparatus and method for controlling image density

Optical sensor and image forming apparatus

Supply control unit and image forming apparatus

Image forming apparatus including developing unit and toner supplyi...

Image forming apparatus and image-density control method

Image forming apparatus including a developer replenishing device w...

Image forming apparatus and image density control method

Image forming apparatus capable of reducing a lengthy duration of a...

Process cartridge including developing unit and incorporated in ima...

Image forming apparatus and method of adjusting charge bias

Image forming apparatus and image quality correction method used th...

Image forming apparatus capable of efficient toner concentration co...

Image forming apparatus and image density control method

Image forming apparatus and image density control method

Toner replenishment determination device of an image forming apparatus

Image forming apparatus and image density control method

Reuse method and a reusable device for an image forming apparatus h...

Image forming apparatus for correcting a toner density target value

Image forming apparatus and image density control method

Method and apparatus for image forming capable of accurately detect...

Image forming apparatus with a two component developer, toner densi...

Image forming apparatus and process cartridge therefore having a cl...

Image forming apparatus and method of adjusting charge bias

Image forming apparatus with toner density control

Developing unit and image forming apparatus which forces consumptio...

Image forming apparatus and image forming method

Image forming device including a toner pattern forming unit

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

Optical sensor and image forming apparatus incorporating optical se...

OPTICAL SENSOR AND IMAGE FORMING APPARATUS

IMAGE FOMRING APARATUS AND METHOD OF ADJUSTING CHARGE BIAS

IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING IMAGE DENSITY TH...

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND IMAGE-DENSITY CONTROL METHOD

REUSE METHOD AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND IMAGE QUALITY CORRECTION METHOD USED TH...

IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD

PROCESS CARTRIDGE INCLUDING DEVELOPING UNIT AND INCORPORATED IN IMA...

IMAGE FORMING APPARATUS INCLUDING A DEVELOPER REPLENISHING DEVICE F...

IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD

IMAGE FORMING METHOD AND APPARATUS HAVING A UNIT FOR CONVEYING TONE...

IMAGE FORMING APPARATUS CAPABLE OF EFFICIENT TONER CONCENTRATION CO...

IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD

IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD

IMAGE FORMING APPARATUS AND IMAGE DENSITY CONTROL METHOD

IMAGE FORMING APPARATUS AND METHOD OF ADJUSTING CHARGE BIAS

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

DEVELOPING DEVICE, AND PROCESS UNIT AND IMAGE FORMING APPARATUS USI...

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

IMAGE FORMING APPARATUS EFFECTIVELY CONDUCTING A PROCESS CONTROL

IMAGE DENSITY CONTROL METHOD AND IMAGE FORMING APPARATUS

IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING AN IMAGE QUALITY

Image forming apparatus and image density control method

IMAGE FORMING APPARATUS

Image forming device