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Ichiro Tsuruoka
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Nihonbashi, JP
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last 30 patents
Information
Patent Grant
Wet-type electrophotographic image formation method
Patent number
5,642,188
Issue date
Jun 24, 1997
Ricoh Company, Ltd.
Manabu Mochizuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Wet-type image formation apparatus
Patent number
5,463,453
Issue date
Oct 31, 1995
Ricoh Company, Ltd.
Tsuneo Kurotori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Liquid developer for latent electrostatic images
Patent number
5,384,225
Issue date
Jan 24, 1995
Ricoh Company, Ltd.
Tsuneo Kurotori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic copier with a developing device using a liquid...
Patent number
5,359,398
Issue date
Oct 25, 1994
Ricoh Company, Ltd.
Katsuhiro Echigo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus with ozone detection and deodorizer
Patent number
5,164,778
Issue date
Nov 17, 1992
Ricoh Company, Ltd.
Hiroshi Tanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus for decomposing ozone by using a solvent mist
Patent number
5,155,531
Issue date
Oct 13, 1992
Ricoh Company, Ltd.
Tsuneo Kurotori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus for forming and developing latent electrostatic images wi...
Patent number
5,155,534
Issue date
Oct 13, 1992
Ricoh Company, Ltd.
Tsuneo Kurotori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Fixing method for a wet process copier
Patent number
4,987,457
Issue date
Jan 22, 1991
Ricoh Company, Ltd.
Manabu Mochizuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image fixing unit for use in wet-type electrophotographic copying m...
Patent number
4,985,733
Issue date
Jan 15, 1991
Ricoh Company, Ltd.
Tsuneo Kurotori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus for compensating for irregularities of illumination for a...
Patent number
4,740,815
Issue date
Apr 26, 1988
Ricoh Company, Ltd.
Ichiro Tsuruoka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Fixing device for copying machine
Patent number
4,714,427
Issue date
Dec 22, 1987
Ricoh Company, Ltd.
Ichiro Tsuruoka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Device for heat-fixing a toner image
Patent number
4,474,456
Issue date
Oct 2, 1984
Ricoh Company, Ltd.
Yuichi Kobayashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY