Isao Nakajima

Person

Iwamamachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus and image forming method on measured physic...
- Patent number 8,045,871
- Issue date Oct 25, 2011
- Ricoh Company, Ltd.
- Susumu Monma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and image forming method
- Patent number 7,917,045
- Issue date Mar 29, 2011
- Ricoh Company, Ltd.
- Makoto Yagawara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and toner adhesion amount correction method
- Patent number 7,773,896
- Issue date Aug 10, 2010
- Ricoh Company, Ltd.
- Makoto Yagawara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Printing apparatus
- Patent number 7,747,209
- Issue date Jun 29, 2010
- Ricoh Company, Ltd.
- Akihiko Yamazaki
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Printer capable of reserving sheet wrapping width
- Patent number 7,539,453
- Issue date May 26, 2009
- Ricoh Company, Ltd.
- Yukio Otome
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film loader for an image forming apparatus
- Patent number 7,450,883
- Issue date Nov 11, 2008
- Ricoh Printing Systems, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film loader for an image forming apparatus
- Patent number 7,336,917
- Issue date Feb 26, 2008
- Ricoh Printing Systems, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Belt unit of electrophotographic printing apparatus
- Patent number 7,308,220
- Issue date Dec 11, 2007
- Ricoh Printing Systems, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Film loader for an image forming apparatus
- Patent number 7,295,794
- Issue date Nov 13, 2007
- Ricoh Printing Systems, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Fixing apparatus of electrophotographic printer
- Patent number 6,947,698
- Issue date Sep 20, 2005
- Ricoh Printing Systems, Ltd.
- Sho Sawahata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Printing system and printing method
- Patent number 6,927,875
- Issue date Aug 9, 2005
- Hitachi Koki Co., Ltd.
- Hiroshi Ueno
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus for printing an image on both sides of a re...
- Patent number 6,882,819
- Issue date Apr 19, 2005
- Hitachi, Ltd.
- Masahiro Yagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having belt-shaped carrier
- Patent number 6,603,942
- Issue date Aug 5, 2003
- Hitachi, Ltd.
- Kenji Asuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Printers and printing method
- Patent number 6,601,951
- Issue date Aug 5, 2003
- Hitachi Koki Co., Ltd.
- Akitomo Kuwabara
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Image production apparatus
- Patent number 6,496,672
- Issue date Dec 17, 2002
- Hitachi, Ltd.
- Kenji Asuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a belt attaching/detaching mechanism
- Patent number 6,445,895
- Issue date Sep 3, 2002
- Hitachi Koki Co., Ltd.
- Satoshi Shirasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image recording apparatus
- Patent number 6,285,854
- Issue date Sep 4, 2001
- Hitachi, Ltd.
- Shigeru Obata
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording apparatus with conveyed recording sheet heated by movable...
- Patent number 6,130,408
- Issue date Oct 10, 2000
- Hitachi, Ltd.
- Hiromitsu Fukuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image recording apparatus which prevents variation in speed of a re...
- Patent number 6,104,907
- Issue date Aug 15, 2000
- Hitachi, Ltd.
- Shigeru Obata
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Toner image heating device
- Patent number 5,961,864
- Issue date Oct 5, 1999
- Hitachi Koki Co., Ltd.
- Isao Nakajima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Exposure device of electrophotographic apparatus with optical path...
- Patent number 5,818,496
- Issue date Oct 6, 1998
- Hitachi Koki Co., Ltd.
- Youji Hirose
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Electrophotographic apparatus for a continuous strip of paper sheet...
- Patent number 5,802,444
- Issue date Sep 1, 1998
- Hitachi Koki Co., Ltd.
- Youichi Takeuchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Continuous recording medium friction-conveying mechanism in image f...
- Patent number 5,774,777
- Issue date Jun 30, 1998
- Hitachi, Ltd.
- Hidefumi Ohtsuka
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Preheating controller for a two-stage electrophotographic printing...
- Patent number 5,652,949
- Issue date Jul 29, 1997
- Hitachi Koki Co., Ltd.
- Hiroyuki Ogawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical recorder having a signal separation circuit and a FIFO memo...
- Patent number 5,578,819
- Issue date Nov 26, 1996
- Hitachi Koki Co., Ltd.
- Keiji Kataoka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electrophotographic printing system including a plurality of electr...
- Patent number 5,572,290
- Issue date Nov 5, 1996
- Hitachi Koki Co., Ltd.
- Hiroshi Ueno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner recovering device for electrophotographic apparatus and toner...
- Patent number 5,557,386
- Issue date Sep 17, 1996
- Hitachi Koki Co., Ltd.
- Yuuji Meguro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device having a developer mixing chamber for use in elec...
- Patent number 5,453,820
- Issue date Sep 26, 1995
- Hitachi Koki Co., Ltd.
- Hiroshi Ueno
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner density detection method for electrophotographic apparatus
- Patent number 5,359,396
- Issue date Oct 25, 1994
- Hitachi Koki Co., Ltd.
- Yoshio Ogura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet meandering movement preventing method
- Patent number 4,961,704
- Issue date Oct 9, 1990
- Hitachi Koki Company, Ltd.
- Shigeo Nemoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20080317486
- Publication date Dec 25, 2008
- Susumu MONMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Film loader for an image forming apparatus
- Publication number 20080118269
- Publication date May 22, 2008
- Ricoh Printing Systems, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus and toner adhesion amount correction method
- Publication number 20080044192
- Publication date Feb 21, 2008
- Ricoh Printing Systems, Ltd.
- Makoto Yagawara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
- Publication number 20070212086
- Publication date Sep 13, 2007
- Makoto YAGAWARA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Film loader for an image forming apparatus
- Publication number 20060204278
- Publication date Sep 14, 2006
- Ricoh Printing Systems, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Printing apparatus
- Publication number 20060188304
- Publication date Aug 24, 2006
- Ricoh Printing Systems, Ltd.
- Akihiko Yamazaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Printer capable of reserving sheet wrapping width
- Publication number 20050232670
- Publication date Oct 20, 2005
- Yukio Otome
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Belt unit of electrophotographic printing apparatus
- Publication number 20040165909
- Publication date Aug 26, 2004
- Hitachi Printing Solutions, Ltd.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Fixing apparatus of electrophotographic printer
- Publication number 20040109710
- Publication date Jun 10, 2004
- Hitachi Printing Solutions, Ltd.
- Sho Sawahata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Film loader for an image forming apparatus
- Publication number 20030231898
- Publication date Dec 18, 2003
- HITACHI PRINTING SOLUTIONS, LTD.
- Akira Asaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20030215273
- Publication date Nov 20, 2003
- Yasushi Kinoshita
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20030068175
- Publication date Apr 10, 2003
- Kenji Asuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20030053828
- Publication date Mar 20, 2003
- Masahiro Yagi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image production apparatus
- Publication number 20020034400
- Publication date Mar 21, 2002
- Kenji Asuwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Printers and printing method
- Publication number 20020011170
- Publication date Jan 31, 2002
- Akitomo Kuwabara
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
Image forming apparatus
- Publication number 20010022903
- Publication date Sep 20, 2001
- Satoshi Shirasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Printing system and printing method
- Publication number 20010021027
- Publication date Sep 13, 2001
- Hiroshi Ueno
- G06 - COMPUTING CALCULATING COUNTING

Isao Nakajima

Person

Patents Grantslast 30 patents

Image forming apparatus and image forming method on measured physic...

Image forming apparatus and image forming method

Image forming apparatus and toner adhesion amount correction method

Printing apparatus

Printer capable of reserving sheet wrapping width

Film loader for an image forming apparatus

Film loader for an image forming apparatus

Belt unit of electrophotographic printing apparatus

Film loader for an image forming apparatus

Fixing apparatus of electrophotographic printer

Printing system and printing method

Image forming apparatus for printing an image on both sides of a re...

Image forming apparatus having belt-shaped carrier

Printers and printing method

Image production apparatus

Image forming apparatus having a belt attaching/detaching mechanism

Image recording apparatus

Recording apparatus with conveyed recording sheet heated by movable...

Image recording apparatus which prevents variation in speed of a re...

Toner image heating device

Exposure device of electrophotographic apparatus with optical path...

Electrophotographic apparatus for a continuous strip of paper sheet...

Continuous recording medium friction-conveying mechanism in image f...

Preheating controller for a two-stage electrophotographic printing...

Optical recorder having a signal separation circuit and a FIFO memo...

Electrophotographic printing system including a plurality of electr...

Toner recovering device for electrophotographic apparatus and toner...

Developing device having a developer mixing chamber for use in elec...

Toner density detection method for electrophotographic apparatus

Sheet meandering movement preventing method

Patents Applicationslast 30 patents

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

Film loader for an image forming apparatus

Image forming apparatus and toner adhesion amount correction method

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

Film loader for an image forming apparatus

Printing apparatus

Printer capable of reserving sheet wrapping width

Belt unit of electrophotographic printing apparatus

Fixing apparatus of electrophotographic printer

Film loader for an image forming apparatus

Image forming apparatus

Image forming apparatus

Image forming apparatus

Image production apparatus

Printers and printing method

Image forming apparatus

Printing system and printing method