Makoto Obu

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for arranging image forming sections
- Patent number 7,693,466
- Issue date Apr 6, 2010
- Ricoh Company, Ltd.
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including a transfer belt having image form...
- Patent number 7,343,126
- Issue date Mar 11, 2008
- Ricoh Company, Ltd.
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Tandem image forming device having a side-by-side arrangement of im...
- Patent number 7,203,452
- Issue date Apr 10, 2007
- Ricoh Company, Ltd.
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt device and unit device including belt device and image forming...
- Patent number 7,054,585
- Issue date May 30, 2006
- Ricoh Company, Ltd.
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt device and unit device including belt device and image forming...
- Patent number 6,941,102
- Issue date Sep 6, 2005
- Ricoh Company, Ltd.
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt device and unit device including belt device and image forming...
- Patent number 6,768,891
- Issue date Jul 27, 2004
- Ricoh Company, Ltd.
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Tandem image forming device, image forming apparatus and method for...
- Patent number 6,757,512
- Issue date Jun 29, 2004
- Ricoh Company, Ltd.
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including electrostatic conveyance of charg...
- Patent number 6,597,884
- Issue date Jul 22, 2003
- Ricoh Company, Ltd.
- Yohichiroh Miyaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Consumption information management apparatus, image formation appar...
- Patent number 6,571,071
- Issue date May 27, 2003
- Ricoh Company, Ltd.
- Yuichiro Kanoshima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Belt device and unit device including belt device and image forming...
- Patent number 6,556,802
- Issue date Apr 29, 2003
- Ricoh Company, Ltd.
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Virtual screen display device
- Patent number 6,545,803
- Issue date Apr 8, 2003
- Ricoh Company, Ltd.
- Nobuo Sakuma
- G02 - OPTICS
Information Patent Grant
Image forming apparatus using a developing liquid, developing devic...
- Patent number 6,501,932
- Issue date Dec 31, 2002
- Ricoh Company, Ltd.
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus using a developing liquid, developing devic...
- Patent number 6,405,008
- Issue date Jun 11, 2002
- Ricoh Company, Ltd.
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having improved image carrier cleaning
- Patent number 6,347,212
- Issue date Feb 12, 2002
- Ricoh Company, Ltd.
- Hideki Kosugi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt device and unit device including belt device and image forming...
- Patent number 6,324,374
- Issue date Nov 27, 2001
- Ricoh Company, Ltd.
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a common sheet processing station
- Patent number 6,308,027
- Issue date Oct 23, 2001
- Ricoh Company, Ltd.
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Virtual screen display device
- Patent number 6,292,305
- Issue date Sep 18, 2001
- Ricoh Company, Ltd.
- Nobuo Sakuma
- G02 - OPTICS
Information Patent Grant
Image forming method and apparatus having a ratio of a thickness or...
- Patent number 6,226,468
- Issue date May 1, 2001
- Ricoh Company, Ltd.
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus using wet type developing device
- Patent number 6,108,508
- Issue date Aug 22, 2000
- Ricoh Company, Ltd.
- Noriyasu Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having liquid developing device for forming...
- Patent number 6,072,972
- Issue date Jun 6, 2000
- Ricoh Company, Ltd.
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus
- Patent number 5,987,281
- Issue date Nov 16, 1999
- Ricoh Company, Ltd.
- Tsuneo Kurotori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus with a developing device using a developing...
- Patent number 5,987,282
- Issue date Nov 16, 1999
- Ricoh Company, Ltd.
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device and method for forming full-color images
- Patent number 5,953,559
- Issue date Sep 14, 1999
- Ricoh Company, Ltd.
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for controlling density of liquid developing solution and...
- Patent number 5,923,930
- Issue date Jul 13, 1999
- Ricoh Company, Ltd.
- Takeo Tsukamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming device which forms an electric field to discharge an...
- Patent number 5,864,737
- Issue date Jan 26, 1999
- Ricoh Company, Ltd.
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a mounting/dismounting mechanism
- Patent number 5,848,329
- Issue date Dec 8, 1998
- Ricoh Company, Ltd.
- Yuichi Aoyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Wet image forming apparatus including an intermediate transfer body...
- Patent number 5,845,186
- Issue date Dec 1, 1998
- Ricoh Company, Ltd.
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Ink jet recording apparatus
- Patent number 5,754,202
- Issue date May 19, 1998
- Ricoh Company, Ltd.
- Takuro Sekiya
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Wet-type image forming apparatus for forming a condensed toner image
- Patent number 5,666,616
- Issue date Sep 9, 1997
- Ricoh Company, Ltd.
- Mie Yoshino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Methods and apparatus to duplicate images on various image carrying...
- Patent number 5,652,080
- Issue date Jul 29, 1997
- Ricoh Co., Ltd.
- Mie Yoshino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TANDEM IMAGE FORMING DEVICE AND IMAGE FORMINGAPPARATUS INCLUDING TH...
- Publication number 20080212998
- Publication date Sep 4, 2008
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TANDEM IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS INCLUDING T...
- Publication number 20070140728
- Publication date Jun 21, 2007
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt device and unit device including belt device and image forming...
- Publication number 20050244197
- Publication date Nov 3, 2005
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt device and unit device including belt device and image forming...
- Publication number 20040213605
- Publication date Oct 28, 2004
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Tandem image forming device and image forming apparatus including t...
- Publication number 20040179869
- Publication date Sep 16, 2004
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt device and unit device including belt device and image forming...
- Publication number 20030185602
- Publication date Oct 2, 2003
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus using a developing liquid, developing devic...
- Publication number 20020076240
- Publication date Jun 20, 2002
- Makoto Obu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt device and unit device including belt device and image forming...
- Publication number 20020044799
- Publication date Apr 18, 2002
- Tetsurou Sasamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Consumption information management apparatus, image formation appar...
- Publication number 20020037177
- Publication date Mar 28, 2002
- Yuichiro Kanoshima
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Image forming apparatus
- Publication number 20020037182
- Publication date Mar 28, 2002
- RICOH COMPANY, LTD.
- Yohichiroh Miyaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Tandem image forming device and image forming apparatus including t...
- Publication number 20020031379
- Publication date Mar 14, 2002
- RICOH COMPANY, LTD.
- Katsuaki Miyawaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Person

Patents Grantslast 30 patents

Method for arranging image forming sections

Image forming apparatus including a transfer belt having image form...

Tandem image forming device having a side-by-side arrangement of im...

Belt device and unit device including belt device and image forming...

Belt device and unit device including belt device and image forming...

Belt device and unit device including belt device and image forming...

Tandem image forming device, image forming apparatus and method for...

Image forming apparatus including electrostatic conveyance of charg...

Consumption information management apparatus, image formation appar...

Belt device and unit device including belt device and image forming...

Virtual screen display device

Image forming apparatus using a developing liquid, developing devic...

Image forming apparatus using a developing liquid, developing devic...

Image forming apparatus having improved image carrier cleaning

Belt device and unit device including belt device and image forming...

Image forming apparatus having a common sheet processing station

Virtual screen display device

Image forming method and apparatus having a ratio of a thickness or...

Image forming apparatus using wet type developing device

Image forming apparatus having liquid developing device for forming...

Image forming apparatus

Image forming apparatus with a developing device using a developing...

Device and method for forming full-color images

Apparatus for controlling density of liquid developing solution and...

Image forming device which forms an electric field to discharge an...

Image forming apparatus having a mounting/dismounting mechanism

Wet image forming apparatus including an intermediate transfer body...

Ink jet recording apparatus

Wet-type image forming apparatus for forming a condensed toner image

Methods and apparatus to duplicate images on various image carrying...

Patents Applicationslast 30 patents

TANDEM IMAGE FORMING DEVICE AND IMAGE FORMINGAPPARATUS INCLUDING TH...

TANDEM IMAGE FORMING DEVICE AND IMAGE FORMING APPARATUS INCLUDING T...

Belt device and unit device including belt device and image forming...

Belt device and unit device including belt device and image forming...

Tandem image forming device and image forming apparatus including t...

Belt device and unit device including belt device and image forming...

Image forming apparatus using a developing liquid, developing devic...

Belt device and unit device including belt device and image forming...

Consumption information management apparatus, image formation appar...

Image forming apparatus

Tandem image forming device and image forming apparatus including t...