Toshihiro SUGIYAMA

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus including electric charge removing device a...
- Patent number 9,500,978
- Issue date Nov 22, 2016
- Ricoh Company, Ltd.
- Masayoshi Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and method having a forcible toner consumpt...
- Patent number 9,229,399
- Issue date Jan 5, 2016
- Ricoh Company, Ltd.
- Kazuaki Kamihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 7,965,954
- Issue date Jun 21, 2011
- Ricoh Company, Ltd.
- Jun Shiori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 7,883,089
- Issue date Feb 8, 2011
- Ricoh Company, Limited
- Kazuhisa Sudo
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image forming apparatus and recording medium
- Patent number 7,865,121
- Issue date Jan 4, 2011
- Ricoh Company, Ltd.
- Yukiko Iwasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image recording medium, sheet feeding device, and image forming app...
- Patent number 7,817,953
- Issue date Oct 19, 2010
- Ricoh Company, Limited
- Mikio Ishibashi
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Lifetime management device and image forming system
- Patent number 7,734,200
- Issue date Jun 8, 2010
- Ricoh Company, Limited
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lifetime management device and image forming system
- Patent number 7,676,164
- Issue date Mar 9, 2010
- Ricoh Company, Limited
- Jun Shiori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming system that calculate ope...
- Patent number 7,593,652
- Issue date Sep 22, 2009
- Ricoh Company, Limited
- Yutaka Takahashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Image forming apparatus
- Patent number 6,961,535
- Issue date Nov 1, 2005
- Ricoh Company, Ltd.
- Shinichi Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Cleaning device and image forming apparatus using the same
- Patent number 6,895,209
- Issue date May 17, 2005
- Ricoh Company, Ltd.
- Shinichi Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 6,813,467
- Issue date Nov 2, 2004
- Ricoh Company, Ltd.
- Shinichi Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with accurate image formation
- Patent number 6,700,595
- Issue date Mar 2, 2004
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Toner recycling device and method, and image forming apparatus and...
- Patent number 6,532,355
- Issue date Mar 11, 2003
- Ricoh Company, Ltd.
- Hiroshi Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image transferring device and image forming apparatus including the...
- Patent number 6,430,383
- Issue date Aug 6, 2002
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer device and image formation apparatus
- Patent number 6,421,511
- Issue date Jul 16, 2002
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having recycling of residual toner
- Patent number 6,112,046
- Issue date Aug 29, 2000
- Ricoh Company, Ltd.
- Koji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an image forming apparatus
- Patent number 6,033,818
- Issue date Mar 7, 2000
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic recording apparatus configured to switch a bias...
- Patent number 5,897,243
- Issue date Apr 27, 1999
- Ricoh Company, Ltd.
- Satoru Komatsubara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of coating a toner conveyor roller
- Patent number 5,879,752
- Issue date Mar 9, 1999
- Ricoh Company, Ltd.
- Eisaku Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an image forming apparatus
- Patent number 5,845,183
- Issue date Dec 1, 1998
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an electrophotographic recording apparatus in...
- Patent number 5,826,144
- Issue date Oct 20, 1998
- Ricoh Company, Ltd.
- Eiji Takenaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with bias control to prevent undesirable to...
- Patent number 5,768,665
- Issue date Jun 16, 1998
- Ricoh Company, Ltd.
- Tetsuo Yamanaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an image forming apparatus
- Patent number 5,708,942
- Issue date Jan 13, 1998
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device having the lengths of two toner transporting roll...
- Patent number 5,697,026
- Issue date Dec 9, 1997
- Ricoh Company, Ltd.
- Iwao Matsumae
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus for electronic photographic recording equipmen...
- Patent number 5,689,782
- Issue date Nov 18, 1997
- Ricoh Company, Ltd.
- Eisaku Murakami
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device for electrostatically developing a latent image on an image...
- Patent number 5,666,625
- Issue date Sep 9, 1997
- Ricoh Company, Ltd.
- Satoru Komatsubara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, and devices for electrostatically depositing a uniform appli...
- Patent number 5,625,438
- Issue date Apr 29, 1997
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device having seals between a toner transport roller and...
- Patent number 5,625,440
- Issue date Apr 29, 1997
- Ricoh Company, Ltd.
- Iwao Matsumae
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for an image forming apparatus
- Patent number 5,625,441
- Issue date Apr 29, 1997
- Ricoh Company, Ltd.
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD OF FORMING IMAGE
- Publication number 20160026109
- Publication date Jan 28, 2016
- RICOH COMPANY, LTD.
- Masayoshi Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND METHOD
- Publication number 20150160599
- Publication date Jun 11, 2015
- Kazuaki KAMIHARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image Forming Apparatus, Image Forming System, Paper Feeding Appara...
- Publication number 20080236736
- Publication date Oct 2, 2008
- Reki Nakamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Sheet processing method and image forming apparatus
- Publication number 20080135160
- Publication date Jun 12, 2008
- Yukiko Iwasaki
- B32 - LAYERED PRODUCTS
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20080138094
- Publication date Jun 12, 2008
- Jun SHIORI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING METHOD AND APPARATUS
- Publication number 20080025774
- Publication date Jan 31, 2008
- Mikio Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND RECORDING MEDIUM
- Publication number 20080008946
- Publication date Jan 10, 2008
- Yukiko IWASAKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20070278735
- Publication date Dec 6, 2007
- Ricoh Company, Limited
- Kazuhisa Sudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image recording medium, sheet feeding device, and image forming app...
- Publication number 20070164505
- Publication date Jul 19, 2007
- Ricoh Company, Limited
- Mikio Ishibashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Lifetime management device and image forming system
- Publication number 20070122164
- Publication date May 31, 2007
- Ricoh Company, Limited
- Jun Shiori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and image forming system
- Publication number 20070122166
- Publication date May 31, 2007
- Ricoh Company, Limited
- Yutaka Takahashi
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Lifetime management device and image forming system
- Publication number 20070122167
- Publication date May 31, 2007
- Ricoh Company, Limited
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming device
- Publication number 20050162499
- Publication date Jul 28, 2005
- Toshihiro Sugiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Image forming apparatus
- Publication number 20050078992
- Publication date Apr 14, 2005
- Shinichi Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20030235424
- Publication date Dec 25, 2003
- Shinichi Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Cleaning device and image forming apparatus using the same
- Publication number 20030219289
- Publication date Nov 27, 2003
- Shinichi Kawahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus with accurate image formation
- Publication number 20020135656
- Publication date Sep 26, 2002
- Toshihiro Sugiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Toner recycling device and method, and image forming apparatus and...
- Publication number 20020067938
- Publication date Jun 6, 2002
- Hiroshi Saitoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Transfer device and image formation apparatus
- Publication number 20010002956
- Publication date Jun 7, 2001
- Toshihiro Sugiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Toshihiro SUGIYAMA

Person

Patents Grantslast 30 patents

Image forming apparatus including electric charge removing device a...

Image forming apparatus and method having a forcible toner consumpt...

Image forming apparatus

Image forming apparatus

Image forming apparatus and recording medium

Image recording medium, sheet feeding device, and image forming app...

Lifetime management device and image forming system

Lifetime management device and image forming system

Image forming apparatus and image forming system that calculate ope...

Image forming apparatus

Cleaning device and image forming apparatus using the same

Image forming apparatus

Image forming apparatus with accurate image formation

Toner recycling device and method, and image forming apparatus and...

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

Transfer device and image formation apparatus

Image forming apparatus having recycling of residual toner

Developing device for an image forming apparatus

Electrophotographic recording apparatus configured to switch a bias...

Method of coating a toner conveyor roller

Developing device for an image forming apparatus

Developing device for an electrophotographic recording apparatus in...

Image forming apparatus with bias control to prevent undesirable to...

Developing device for an image forming apparatus

Developing device having the lengths of two toner transporting roll...

Developing apparatus for electronic photographic recording equipmen...

Device for electrostatically developing a latent image on an image...

Toner, and devices for electrostatically depositing a uniform appli...

Developing device having seals between a toner transport roller and...

Developing device for an image forming apparatus

Patents Applicationslast 30 patents

APPARATUS AND METHOD OF FORMING IMAGE

IMAGE FORMING APPARATUS AND METHOD

Image Forming Apparatus, Image Forming System, Paper Feeding Appara...

Sheet processing method and image forming apparatus

IMAGE FORMING APPARATUS

IMAGE FORMING METHOD AND APPARATUS

IMAGE FORMING APPARATUS AND RECORDING MEDIUM

Image forming apparatus

Image recording medium, sheet feeding device, and image forming app...

Lifetime management device and image forming system

Image forming apparatus and image forming system

Lifetime management device and image forming system

Image forming device

Image forming apparatus

Image forming apparatus

Cleaning device and image forming apparatus using the same

Image forming apparatus with accurate image formation

Toner recycling device and method, and image forming apparatus and...

Transfer device and image formation apparatus