Akio Tsujita

Person

Katsuta, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Toner, printed material, method of preparing printed material and i...
- Patent number 9,116,450
- Issue date Aug 25, 2015
- Ricoh Company, Ltd.
- Masato Iio
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Image forming method, image forming apparatus, varnish applicator,...
- Patent number 8,630,573
- Issue date Jan 14, 2014
- Ricoh Company, Ltd.
- Masato Iio
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 8,626,040
- Issue date Jan 7, 2014
- Ricoh Company, Ltd.
- Tadashi Kasai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Controller and halftone dot signal generating method capable of con...
- Patent number 8,520,261
- Issue date Aug 27, 2013
- Ricoh Company, Ltd.
- Shinya Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus
- Patent number 8,494,385
- Issue date Jul 23, 2013
- Ricoh Company, Ltd.
- Masakazu Terao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic image forming apparatus
- Patent number 8,086,148
- Issue date Dec 27, 2011
- Ricoh Company, Ltd.
- Kaoru Kataoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and electrophotographic apparatus using the same
- Patent number 7,574,164
- Issue date Aug 11, 2009
- Ricoh Company Ltd.
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit and image forming apparatus
- Patent number 7,466,946
- Issue date Dec 16, 2008
- Ricoh Printing Systems, Ltd.
- Akio Tsujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic device with contaminant-resistant photoconducto...
- Patent number 7,421,222
- Issue date Sep 2, 2008
- Ricoh Printing Systems, Ltd.
- Tatsuya Kubo
- G05 - CONTROLLING REGULATING
Information Patent Grant
Image forming apparatus with adjusting device
- Patent number 6,330,403
- Issue date Dec 11, 2001
- Hitachi Koki Co., Ltd.
- Akio Tsujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatographic printing machine
- Patent number 6,144,836
- Issue date Nov 7, 2000
- Hitachi Koki Co., Ltd.
- Takao Umeda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a photosensitive body formed of a ba...
- Patent number 5,701,560
- Issue date Dec 23, 1997
- Hitachi Koki Co., Ltd.
- Akio Tsujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic image recording apparatus using amorphous silic...
- Patent number 5,005,051
- Issue date Apr 2, 1991
- Hitachi Koki Co., Ltd.
- Shinichi Haruki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CONTROLLER AND HALFTONE DOT SIGNAL GENERATING METHOD CAPABLE OF CON...
- Publication number 20120105915
- Publication date May 3, 2012
- Shinya KOBAYASHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TONER, PRINTED MATERIAL, METHOD OF PREPARING PRINTED MATERIAL AND I...
- Publication number 20120082829
- Publication date Apr 5, 2012
- Masato Iio
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20120063819
- Publication date Mar 15, 2012
- Tadashi Kasai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming method, image forming apparatus, varnish applicator,...
- Publication number 20110223527
- Publication date Sep 15, 2011
- RICOH COMPANY, LTD.
- Masato Iio
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20110206429
- Publication date Aug 25, 2011
- RICOH COMPANY, LTD.
- Masakazu Terao
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
- Publication number 20090214270
- Publication date Aug 27, 2009
- Kaoru KATAOKA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device and electrophotographic apparatus using the same
- Publication number 20070172262
- Publication date Jul 26, 2007
- Ricoh Printing Systems, Ltd.
- Hisao Okada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing unit and image forming apparatus
- Publication number 20060216069
- Publication date Sep 28, 2006
- Ricoh Printing Systems, Ltd.
- Akio Tsujita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Photoconductor charging device and image forming device using same
- Publication number 20050162136
- Publication date Jul 28, 2005
- Tatsuya Kubo
- G05 - CONTROLLING REGULATING
Information Patent Application
Image forming apparatus and charging device
- Publication number 20050053396
- Publication date Mar 10, 2005
- Hitachi Printing Solutions, Ltd.
- Tatsuya Kubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Akio Tsujita

Person

Patents Grantslast 30 patents

Toner, printed material, method of preparing printed material and i...

Image forming method, image forming apparatus, varnish applicator,...

Image forming apparatus

Controller and halftone dot signal generating method capable of con...

Image forming apparatus

Electrophotographic image forming apparatus

Developing device and electrophotographic apparatus using the same

Developing unit and image forming apparatus

Electrophotographic device with contaminant-resistant photoconducto...

Image forming apparatus with adjusting device

Electrostatographic printing machine

Image forming apparatus having a photosensitive body formed of a ba...

Electrophotographic image recording apparatus using amorphous silic...

Patents Applicationslast 30 patents

CONTROLLER AND HALFTONE DOT SIGNAL GENERATING METHOD CAPABLE OF CON...

TONER, PRINTED MATERIAL, METHOD OF PREPARING PRINTED MATERIAL AND I...

IMAGE FORMING APPARATUS

Image forming method, image forming apparatus, varnish applicator,...

Image forming apparatus

ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

Developing device and electrophotographic apparatus using the same

Developing unit and image forming apparatus

Photoconductor charging device and image forming device using same

Image forming apparatus and charging device