Ryuuichi Shimizu

Person

Hitachiota, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electrophotographic toner
- Patent number 7,459,252
- Issue date Dec 2, 2008
- Ricoh Printing Systems, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic toner and image-forming system
- Patent number 7,327,974
- Issue date Feb 5, 2008
- Ricoh Printing Systems, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic charge image developing toner, and developer, image f...
- Patent number 7,144,667
- Issue date Dec 5, 2006
- Ricoh Printing Systems, Ltd.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic toner and image-forming system
- Patent number 7,022,448
- Issue date Apr 4, 2006
- Ricoh Printing Systems, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic image developing toner and image forming method
- Patent number 6,783,909
- Issue date Aug 31, 2004
- Hitachi Printing Solutions, Ltd.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic charge developing toner and image forming method usin...
- Patent number 6,696,210
- Issue date Feb 24, 2004
- Hitachi Printing Solutions, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic printing apparatus using electric potential div...
- Patent number 6,131,000
- Issue date Oct 10, 2000
- Hitachi, Ltd.
- Shinichi Akatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Transfer belt and electrophotographic apparatus
- Patent number 6,094,558
- Issue date Jul 25, 2000
- Hitachi Koki Co., Ltd.
- Ryuuichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt-type fixing device having an irregular surface contour
- Patent number 5,649,273
- Issue date Jul 15, 1997
- Hitachi, Ltd.
- Ryuuichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device for electrophotography and electrophotographic appara...
- Patent number 5,519,479
- Issue date May 21, 1996
- Hitachi, Ltd.
- Ryuuichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device for electrophotography and electrophotographic appara...
- Patent number 5,508,138
- Issue date Apr 16, 1996
- Hitachi, Ltd.
- Ryuuichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing device for electrophotography and electrophotographic appara...
- Patent number 5,363,180
- Issue date Nov 8, 1994
- Hitachi, Ltd.
- Ryuuichi Shimizu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image fixing device and electrophotographic apparatus incorporated...
- Patent number 5,345,301
- Issue date Sep 6, 1994
- Hitachi, Ltd.
- Toshiya Satoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Electrophotographic toner and image-forming system
- Publication number 20070134580
- Publication date Jun 14, 2007
- Ricoh Printing Systems, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrostatic charge image developing toner, and developer, image f...
- Publication number 20040175640
- Publication date Sep 9, 2004
- Hitachi Printing Solutions, Ltd.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrostatic charge image developing toner and image forming appar...
- Publication number 20040058259
- Publication date Mar 25, 2004
- HITACHI PRINTING SOLUTIONS, LTD.
- Junji Kobayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic toner and image-forming system
- Publication number 20040053153
- Publication date Mar 18, 2004
- HITACHI PRINTING SOLUTIONS, LTD.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotographic toner and image-forming system
- Publication number 20040043317
- Publication date Mar 4, 2004
- HITACHI PRINTING SOLUTIONS, LTD.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrostatic image developing toner and image forming method
- Publication number 20030134216
- Publication date Jul 17, 2003
- HITACHI PRINTING SOLUTIONS, LTD.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrostatic charge developing toner and image forming method usin...
- Publication number 20020160291
- Publication date Oct 31, 2002
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner for developing electrostatic charge image and image forming a...
- Publication number 20020022189
- Publication date Feb 21, 2002
- HITACHI KOKI CO., LTD.
- Tsuneaki Kawanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Ryuuichi Shimizu

Person

Patents Grantslast 30 patents

Electrophotographic toner

Electrophotographic toner and image-forming system

Electrostatic charge image developing toner, and developer, image f...

Electrophotographic toner and image-forming system

Electrostatic image developing toner and image forming method

Electrostatic charge developing toner and image forming method usin...

Electrophotographic printing apparatus using electric potential div...

Transfer belt and electrophotographic apparatus

Belt-type fixing device having an irregular surface contour

Fixing device for electrophotography and electrophotographic appara...

Fixing device for electrophotography and electrophotographic appara...

Fixing device for electrophotography and electrophotographic appara...

Image fixing device and electrophotographic apparatus incorporated...

Patents Applicationslast 30 patents

Electrophotographic toner and image-forming system

Electrostatic charge image developing toner, and developer, image f...

Electrostatic charge image developing toner and image forming appar...

Electrophotographic toner and image-forming system

Electrophotographic toner and image-forming system

Electrostatic image developing toner and image forming method

Electrostatic charge developing toner and image forming method usin...

Toner for developing electrostatic charge image and image forming a...