Naoki Iwata

Person

Saitama-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Fixing method, a fixing apparatus, an image formation method, and a...
- Patent number 7,590,376
- Issue date Sep 15, 2009
- Ricoh Company, Ltd.
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing apparatus using pulsating power for heating
- Patent number 7,356,298
- Issue date Apr 8, 2008
- Ricoh Company, Ltd.
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device and image forming apparatus for holding a recording m...
- Patent number 7,352,987
- Issue date Apr 1, 2008
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Oilless toner
- Patent number 7,309,553
- Issue date Dec 18, 2007
- Ricoh Company Limited
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and an impurity collecting device associate...
- Patent number 7,295,795
- Issue date Nov 13, 2007
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method, system and apparatus for transferring toner images to both...
- Patent number 7,197,269
- Issue date Mar 27, 2007
- Ricoh Company, Ltd.
- Yasukuni Omata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing apparatus using pulsating power for heating
- Patent number 7,046,949
- Issue date May 16, 2006
- Ricoh Company, Ltd.
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method having transfer temperature difference and app...
- Patent number 7,003,251
- Issue date Feb 21, 2006
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus configured for double sided printing
- Patent number 6,983,117
- Issue date Jan 3, 2006
- Ricoh Company, Ltd.
- Norimasa Sohmiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device having plurality of biased magnetic sleeves
- Patent number 6,941,099
- Issue date Sep 6, 2005
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multicolor image forming method preventing contamination of toner o...
- Patent number 5,869,213
- Issue date Feb 9, 1999
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus
- Patent number 5,812,917
- Issue date Sep 22, 1998
- Ricoh Co., Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an image forming apparatus
- Patent number 5,809,386
- Issue date Sep 15, 1998
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of developing latent electrostatic images and developer-bear...
- Patent number 5,741,616
- Issue date Apr 21, 1998
- Ricoh Company, Ltd.
- Yasuo Hirano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer carrier capable of forming microfields thereon and method...
- Patent number 5,674,408
- Issue date Oct 7, 1997
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multicolor image forming apparatus with pulse voltage and DC voltag...
- Patent number 5,557,392
- Issue date Sep 17, 1996
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multicolor image forming method preventing mixing of colors
- Patent number 5,541,029
- Issue date Jul 30, 1996
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an image forming apparatus
- Patent number 5,502,552
- Issue date Mar 26, 1996
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and method of developing
- Patent number 5,474,869
- Issue date Dec 12, 1995
- Ricoh Company, Ltd.
- Masami Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus using a developer carrier capable of forming m...
- Patent number 5,451,713
- Issue date Sep 19, 1995
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Nondestructive multicolor image forming apparatus
- Patent number 5,450,172
- Issue date Sep 12, 1995
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device with microfields formed on developer carrier
- Patent number 5,424,814
- Issue date Jun 13, 1995
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device with a developer carrier capable of forming numer...
- Patent number 5,339,141
- Issue date Aug 16, 1994
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus using a developer carrier capable of forming m...
- Patent number 5,315,061
- Issue date May 24, 1994
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus for image forming equipment using developer ca...
- Patent number 5,311,263
- Issue date May 10, 1994
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus using a developer carrier capable of forming m...
- Patent number 5,286,918
- Issue date Feb 15, 1994
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device having surface microfields for an image forming a...
- Patent number 5,245,391
- Issue date Sep 14, 1993
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image forming equipment with two developers and a pulse bias
- Patent number 5,241,357
- Issue date Aug 31, 1993
- Ricoh Company, Ltd.
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing roller having insulating and conductive areas
- Patent number 5,239,344
- Issue date Aug 24, 1993
- Ricoh Company, Ltd.
- Shigekazu Enoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an image forming apparatus having a large num...
- Patent number 5,220,383
- Issue date Jun 15, 1993
- Ricoh Company, Ltd.
- Shigekazu Enoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND P...
- Publication number 20240203377
- Publication date Jun 20, 2024
- SONY GROUP CORPORATION
- Seiji MURAMATSU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND I...
- Publication number 20230376195
- Publication date Nov 23, 2023
- SONY GROUP CORPORATION
- Hiroaki ADACHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Fixing method, a fixing apparatus, an image formation method, and a...
- Publication number 20060171749
- Publication date Aug 3, 2006
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image fixing apparatus and process for fixing an image
- Publication number 20060159477
- Publication date Jul 20, 2006
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming method having transfer temperature difference and app...
- Publication number 20060024095
- Publication date Feb 2, 2006
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing device and image forming apparatus
- Publication number 20040179875
- Publication date Sep 16, 2004
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image transferring device and image forming apparatus including the...
- Publication number 20040131398
- Publication date Jul 8, 2004
- Yasukuni Omata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20040101332
- Publication date May 27, 2004
- Norimasa Sohmiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming method and apparatus for the same
- Publication number 20030235442
- Publication date Dec 25, 2003
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device
- Publication number 20030086727
- Publication date May 8, 2003
- Naoki Iwata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image fixing apparatus and process for fixing an image
- Publication number 20030059224
- Publication date Mar 27, 2003
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Oilless toner
- Publication number 20030039911
- Publication date Feb 27, 2003
- Kunihiko Tomita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Naoki Iwata

Person

Patents Grantslast 30 patents

Fixing method, a fixing apparatus, an image formation method, and a...

Image fixing apparatus using pulsating power for heating

Fixing device and image forming apparatus for holding a recording m...

Oilless toner

Image forming apparatus and an impurity collecting device associate...

Method, system and apparatus for transferring toner images to both...

Image fixing apparatus using pulsating power for heating

Image forming method having transfer temperature difference and app...

Image forming apparatus configured for double sided printing

Developing device having plurality of biased magnetic sleeves

Multicolor image forming method preventing contamination of toner o...

Developing apparatus

Developing device for an image forming apparatus

Method of developing latent electrostatic images and developer-bear...

Developer carrier capable of forming microfields thereon and method...

Multicolor image forming apparatus with pulse voltage and DC voltag...

Multicolor image forming method preventing mixing of colors

Developing device for an image forming apparatus

Toner and method of developing

Developing apparatus using a developer carrier capable of forming m...

Nondestructive multicolor image forming apparatus

Developing device with microfields formed on developer carrier

Developing device with a developer carrier capable of forming numer...

Developing apparatus using a developer carrier capable of forming m...

Developing apparatus for image forming equipment using developer ca...

Developing apparatus using a developer carrier capable of forming m...

Developing device having surface microfields for an image forming a...

Color image forming equipment with two developers and a pulse bias

Developing roller having insulating and conductive areas

Developing device for an image forming apparatus having a large num...

Patents Applicationslast 30 patents

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND P...

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND I...

Fixing method, a fixing apparatus, an image formation method, and a...

Image fixing apparatus and process for fixing an image

Image forming method having transfer temperature difference and app...

Fixing device and image forming apparatus

Image transferring device and image forming apparatus including the...

Image forming apparatus

Image forming method and apparatus for the same

Developing device

Image fixing apparatus and process for fixing an image

Oilless toner