Kazuyuki Sugihara

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus having a detachable cartridge including a p...
- Patent number 7,272,342
- Issue date Sep 18, 2007
- Ricoh Co., Ltd.
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 7,212,773
- Issue date May 1, 2007
- Ricoh Company, Ltd.
- Kazuhisa Sudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer regulating member, developing device, electrophotographic...
- Patent number 7,043,182
- Issue date May 9, 2006
- Ricoh Company, Ltd.
- Kiyotaka Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device using a developer carrier formed with grooves and...
- Patent number 6,925,277
- Issue date Aug 2, 2005
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and method for performing effective charging and...
- Patent number 6,763,214
- Issue date Jul 13, 2004
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus using the same
- Patent number 6,751,433
- Issue date Jun 15, 2004
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method and apparatus for image forming capable of performing an eff...
- Patent number 6,615,014
- Issue date Sep 2, 2003
- Ricoh Co., Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having an improved developer-supplying mech...
- Patent number 6,336,020
- Issue date Jan 1, 2002
- Ricoh Company, Ltd.
- Tomoji Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with control over developing unit during an...
- Patent number 6,226,481
- Issue date May 1, 2001
- Ricoh Company, Ltd.
- Takuzi Yoneda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a preventing mechanism for preven...
- Patent number 6,122,469
- Issue date Sep 19, 2000
- Ricoh Company, Ltd.
- Tetsuro Miura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having an improved developer-supplying mech...
- Patent number 6,104,900
- Issue date Aug 15, 2000
- Ricoh Company, Ltd.
- Tomoji Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
PC drum integrated revolving type developing unit with pull-out sup...
- Patent number 6,072,967
- Issue date Jun 6, 2000
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having improved developer limiting member
- Patent number 6,070,037
- Issue date May 30, 2000
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
PC drum integrated revolving type developing unit with pull-out sup...
- Patent number 5,991,569
- Issue date Nov 23, 1999
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rotary developing device for an image forming apparatus
- Patent number 5,956,549
- Issue date Sep 21, 1999
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Agitation and charging device for an image forming apparatus
- Patent number 5,940,664
- Issue date Aug 17, 1999
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rotary developing device for an image forming apparatus
- Patent number 5,850,586
- Issue date Dec 15, 1998
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image forming device which changes developing bias when switc...
- Patent number 5,826,146
- Issue date Oct 20, 1998
- Ricoh Company, Ltd.
- Takayuki Maruta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rotary developing device for an image forming apparatus
- Patent number 5,787,328
- Issue date Jul 28, 1998
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container for a rotary developing device
- Patent number 5,768,664
- Issue date Jun 16, 1998
- Ricoh Company, Ltd.
- Katsuhiro Kosuge
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner supply cartridge for rotary developing device
- Patent number 5,768,662
- Issue date Jun 16, 1998
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for image forming apparatus and toner container t...
- Patent number 5,765,059
- Issue date Jun 9, 1998
- Ricoh Company, Ltd.
- Katsuhiro Kosuge
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus for supplying power to members of a rotary...
- Patent number 5,761,576
- Issue date Jun 2, 1998
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container for a rotary developing device
- Patent number 5,758,235
- Issue date May 26, 1998
- Ricoh Company, Ltd.
- Katsuhiro Kosuge
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color image forming device which changes developing bias when switc...
- Patent number 5,671,470
- Issue date Sep 23, 1997
- Ricoh Company, Ltd.
- Takayuki Maruta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Rotary developing device for an image forming apparatus
- Patent number 5,657,115
- Issue date Aug 12, 1997
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus for supplying power to members of a rotary...
- Patent number 5,646,721
- Issue date Jul 8, 1997
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having rotary developing device
- Patent number 5,617,198
- Issue date Apr 1, 1997
- Ricoh Company, Ltd.
- Tomoji Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Submodular unit for use in a modular rotary developing apparatus
- Patent number 5,612,769
- Issue date Mar 18, 1997
- Ricoh Company, Ltd.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with controlled drive for accurately positi...
- Patent number 5,552,877
- Issue date Sep 3, 1996
- Ricoh Company, Ltd.
- Tomoji Ishikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Image forming apparatus having a detachable cartridge including a p...
- Publication number 20060275053
- Publication date Dec 7, 2006
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20050111882
- Publication date May 26, 2005
- Kazuhisa Sudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus having a detachable cartridge including a p...
- Publication number 20050031374
- Publication date Feb 10, 2005
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developer regulating member, developing device, electrophotographic...
- Publication number 20040114971
- Publication date Jun 17, 2004
- Kiyotaka Sakai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device performing effective charging and mixing of devel...
- Publication number 20040028426
- Publication date Feb 12, 2004
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device using a developer carrier formed with grooves and...
- Publication number 20040028428
- Publication date Feb 12, 2004
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device and image forming apparatus using the same
- Publication number 20030072591
- Publication date Apr 17, 2003
- Kazuyuki Sugihara
- B82 - NANO-TECHNOLOGY
Information Patent Application
Method and apparatus for image forming capable of performing an eff...
- Publication number 20010021324
- Publication date Sep 13, 2001
- RICOH CO., LTD.
- Kazuyuki Sugihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kazuyuki Sugihara

Person

Patents Grantslast 30 patents

Image forming apparatus having a detachable cartridge including a p...

Image forming apparatus

Developer regulating member, developing device, electrophotographic...

Developing device using a developer carrier formed with grooves and...

Developing device and method for performing effective charging and...

Developing device and image forming apparatus using the same

Method and apparatus for image forming capable of performing an eff...

Image forming apparatus having an improved developer-supplying mech...

Image forming apparatus with control over developing unit during an...

Image forming apparatus including a preventing mechanism for preven...

Image forming apparatus having an improved developer-supplying mech...

PC drum integrated revolving type developing unit with pull-out sup...

Image forming apparatus having improved developer limiting member

PC drum integrated revolving type developing unit with pull-out sup...

Rotary developing device for an image forming apparatus

Agitation and charging device for an image forming apparatus

Rotary developing device for an image forming apparatus

Color image forming device which changes developing bias when switc...

Rotary developing device for an image forming apparatus

Toner container for a rotary developing device

Toner supply cartridge for rotary developing device

Developing device for image forming apparatus and toner container t...

Image forming apparatus for supplying power to members of a rotary...

Toner container for a rotary developing device

Color image forming device which changes developing bias when switc...

Rotary developing device for an image forming apparatus

Image forming apparatus for supplying power to members of a rotary...

Image forming apparatus having rotary developing device

Submodular unit for use in a modular rotary developing apparatus

Image forming apparatus with controlled drive for accurately positi...

Patents Applicationslast 30 patents

Image forming apparatus having a detachable cartridge including a p...

Image forming apparatus

Image forming apparatus having a detachable cartridge including a p...

Developer regulating member, developing device, electrophotographic...

Developing device performing effective charging and mixing of devel...

Developing device using a developer carrier formed with grooves and...

Developing device and image forming apparatus using the same

Method and apparatus for image forming capable of performing an eff...