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Yasunori Kawaishi
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Narashino, JP
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last 30 patents
Information
Patent Grant
Image transferring device for an image forming apparatus
Patent number
RE38206
Issue date
Jul 29, 2003
Ricoh Company, Ltd.
Takashi Bisaiji
399 - Electrophotography
Information
Patent Grant
Image transferring method and image forming apparatus for transferr...
Patent number
6,212,351
Issue date
Apr 3, 2001
Ricoh Company, Ltd.
Katsuya Kawagoe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Methods and systems for cleaning residual toner from image developi...
Patent number
6,125,257
Issue date
Sep 26, 2000
Ricoh Co., Ltd.
Takeyoshi Sekine
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus for fixing a toner image at a first speed o...
Patent number
6,057,869
Issue date
May 2, 2000
Ricoh Company, Ltd.
Yasunori Kawaishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image transferring device for an image forming apparatus
Patent number
5,701,566
Issue date
Dec 23, 1997
Ricoh Company, Ltd.
Takashi Bisaiji
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image transferring device and medium separating device for an image...
Patent number
5,666,622
Issue date
Sep 9, 1997
Ricoh Company, Ltd.
Yuko Harasawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Methods and systems for cleaning residual toner from image-developi...
Patent number
5,648,842
Issue date
Jul 15, 1997
Ricoh Company, Ltd.
Takeyoshi Sekine
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image transferring device and medium separating device for an image...
Patent number
5,461,461
Issue date
Oct 24, 1995
Ricoh Company, Ltd.
Yuko Harasawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image recording apparatus
Patent number
5,442,428
Issue date
Aug 15, 1995
Ricoh Company, Ltd.
Mitsuru Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Multicolor image forming apparatus with tension controlled image tr...
Patent number
5,291,252
Issue date
Mar 1, 1994
Ricoh Company, Ltd.
Yasunori Kawaishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus with transfer medium and electrometer posit...
Patent number
5,278,613
Issue date
Jan 11, 1994
Ricoh Company, Ltd.
Takashi Bisaiji
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus capable of creating duplex mixed full color...
Patent number
5,162,859
Issue date
Nov 10, 1992
Ricoh Company, Ltd.
Tatsuo Hirono
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus having a separate black developer stored fo...
Patent number
5,160,969
Issue date
Nov 3, 1992
Ricoh Company, Ltd.
Kenichi Mizuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus for forming an image on one or both sides o...
Patent number
5,159,392
Issue date
Oct 27, 1992
Ricoh Company, Ltd.
Nobuo Kasahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image recorder with variable fuser nip entry position
Patent number
5,142,339
Issue date
Aug 25, 1992
Ricoh Company, Ltd.
Nobuo Kasahara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Fixing device
Patent number
4,571,056
Issue date
Feb 18, 1986
Ricoh Company, Ltd.
Tatsuo Tani
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Guide apparatus for movable contact glass in electrophotographic co...
Patent number
4,348,106
Issue date
Sep 7, 1982
Ricoh Co., Ltd.
Shigeru Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY