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Mikio Sanada, Yoshihisa Takizawa, Katsuhiko Takahashi, Masashi Ogasawara, Yoichi Takada, Tomonari Watanabe, Yui Tokuda: Aqueous ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, February 28, 2006: US07005461 (49 worldwide citation)

The present invention relates to an aqueous ink, particularly an aqueous ink suitable for ink jet recording. The ink is an aqueous ink comprising a modified pigment having organic groups chemically attached to the surface of a particle of the pigment and an aqueous medium which is a dispersant of th ...


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Mikio Sanada, Yoshihisa Takizawa, Katsuhiko Takahashi, Masashi Ogasawara, Yoichi Takada, Tomonari Watanabe, Yui Tokuda: Aqueous ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus. Canon Kabushiki Kaisha, Cabot Corporation, Fitzpatrick Cella Harper & Scinto, October 20, 2009: US07605192 (19 worldwide citation)

The present invention relates to an aqueous ink, particularly an aqueous ink suitable for ink jet recording. The ink is an aqueous ink comprising a modified pigment having organic groups chemically attached to the surface of a particle of the pigment and an aqueous medium which is a dispersant of th ...


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Hideki Takayama, Shinichi Hakamada, Masako Udagawa, Kouhei Nakagawa, Hirofumi Ichinose, Nobuyuki Matsumoto: Aqueous ink, ink-jet recording method, ink cartridge, recording unit and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, June 3, 2008: US07381257 (17 worldwide citation)

An aqueous ink to be used in an ink jet recording containing a green pigment having a copper phthalocyanine skeleton, wherein a proportion of the Kα-line intensity of a chlorine atom to the Kα-line intensity of a bromine atom obtained by subjecting the green pigment to X-ray fluorescence analysis is ...


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Kouhei Nakagawa, Shinichi Hakamada, Tetsu Iwata, Masashi Ogasawara, Masashi Tsujimura, Shuichi Okazaki: Aqueous ink, ink-jet recording method, ink cartridge, recording unit and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 27, 2010: US07705071 (17 worldwide citation)

An aqueous ink to be used in an ink jet recording method that an ink is ejected from a recording head by the action of thermal energy, wherein the ink contains a pigment, a polymer and a water-soluble organic solvent, the hydrophilicity δm of the pigment falls within a range of from 21.5 or more to ...


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Kumiko Mafune, Mikio Sanada, Kenji Moribe, Tomonari Watanabe, Daiji Okamura, Satoshi Kudo, Fumiharu Nakamura: Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 20, 2010: US07699924 (13 worldwide citation)

Provided herein is an aqueous ink, which is excellent in both image density and fixing ability irrespective of the kind of a recording medium even when the volume of an ink droplet is small and has such excellent properties that white stripes are not caused even when high-speed recording is conducte ...


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Yoshio Nakajima, Sadayuki Sugama, Shin ichi Hakamada: Aqueous ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, August 25, 2009: US07578876 (10 worldwide citation)

The invention provides an aqueous ink that can prevent clogging at an orifice due to drying of the ink though the ink contains a pigment, and can achieve high-level ejection stability required in recent years. The aqueous ink contains at least water, a water-soluble organic solvent and carbon black ...


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Masako Udagawa, Shinichi Hakamada, Takashi Imai, Kenji Moribe: Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, May 24, 2011: US07947762 (10 worldwide citation)

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection chara ...


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Mikio Sanada, Kenji Moribe: Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, January 4, 2011: US07862653 (9 worldwide citation)

Novel conditions in the physical properties of an ink have been found out to provide an aqueous ink, which can give a high image density and achieve excellent fixing ability. The aqueous ink comprises at least water, a water-soluble organic solvent, a surfactant and a coloring material, wherein the ...


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Satoshi Kudo, Kenji Moribe: Aqueous ink, ink jet recording method, ink cartridge, recording unit, and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, February 1, 2011: US07878643 (9 worldwide citation)

An aqueous ink contains at least an aqueous medium, a surfactant, and a dye. The aqueous medium includes only water and at least one water-soluble organic compound(s) and the static surface tension of the aqueous medium is from 45 mN/m or more to 57 mN/m or less. The dynamic surface tension of the a ...


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Masako Udagawa, Shinichi Hakamada, Takashi Imai, Kenji Moribe: Aqueous ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, July 10, 2012: US08217097 (8 worldwide citation)

The invention provides an aqueous ink comprising a polymer having hydroxyl groups and a pigment, which can provide images excellent in scratch resistance and highlighter resistance and can inhibit the seeping out phenomenon of the polymer and the deterioration of storage stability and ejection chara ...