1
Kumiko Mafune, Tsuyoshi Eida, Keiichi Murai, Yoshifumi Hattori, Mayumi Yamamoto, Osamu Nishiwaki, Yoshihisa Takizawa, Takao Yamamoto, Akira Nagashima, Masahiko Tonogaki, Shinichi Sato, Ryuji Katsuragi, Mikio Sanada, Hisashi Teraoka, Eriko Saito: Ink, and ink-jet recording method and instrument using the same. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, September 19, 1995: US05451251 (85 worldwide citation)

Disclosed herein is an ink comprising a coloring material and a liquid medium dissolving the coloring material therein, wherein the ink comprises a dye having at least one ammonium ion as a counter ion and an ammonium salt of an inorganic or organic acid.


2
Koichi Osumi, Yoshifumi Hattori, Yoshihisa Takizawa, Ryuji Katsuragi, Hisashi Teraoka: Water-based pigment ink, and ink-jet recording method and instruments using the same. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, November 2, 1999: US05976233 (75 worldwide citation)

Disclosed herein is a water-based pigment ink comprising a coloring material composed of self-dispersing carbon black obtained by bonding at least one hydrophilic group directly or through another atomic group to the surface of carbon black, a humectant of the general formula


3
Yutaka Kurabayashi, Yoshifumi Hattori, Mayumi Yamamoto, Yoshihisa Takizawa, Shinya Mishina, Shinichi Sato, Mikio Sanada, Katsuhiko Takahashi, Eriko Ono, Masashi Ogasawara: Ink-jet recording process using liquid formulation and ink in combination. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, February 22, 2000: US06027210 (67 worldwide citation)

Provided is an ink-jet recording process for forming a color image on a recording medium using a liquid formulation and a color ink in combination, wherein the liquid formulation contains a cationic polymer having a weight-average molecular weight in the range of from 400 to 1,400, and the liquid fo ...


4
Koichi Osumi, Yoshifumi Hattori, Yoshihisa Takizawa, Shinya Mishina, Mikio Sanada, Hisashi Teraoka, Yuko Yakushigawa: Ink, ink set, ink cartridge, recording unit, image recording apparatus and image recording method. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, December 25, 2001: US06332919 (57 worldwide citation)

Provided is a black ink capable of mitigating the dependency on image quality of recording media and giving a high quality image stably, which comprises at least one salt selected from the group consisting of (M1)


5
Koichi Osumi, Yoshifumi Hattori, Yoshihisa Takizawa, Shinya Mishina, Mikio Sanada, Hisashi Teraoka, Yuko Yakushigawa: Ink, ink set, ink cartridge, recording unit, image recording apparatus and image recording method. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, August 28, 2001: US06280513 (57 worldwide citation)

Provided is a black ink capable of mitigating the dependency on image quality of recording media and giving a high quality image stably, which comprises at least one salt selected from the group consisting of (M1)


6
Yoichi Takada, Yoshihisa Takizawa, Shinya Mishina, Mikio Sanada, Hisashi Teraoka, Koichi Osumi: Ink, ink-jet recording process, recording unit, ink cartridge and ink-jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 24, 2001: US06221141 (57 worldwide citation)

Disclosed herein is a pigment ink comprising self-dispersing type carbon black to the surface of which at least one hydrophilic group is bonded through another atomic group, an aqueous medium, and a silicon compound. The pigment ink can form images excellent in fastness properties such as water fast ...


7
Noribumi Koitabashi, Sadayuki Sugama, Yoshihisa Takizawa, Hitoshi Tsuboi: Ink, ink container, ink set, ink-jet printing apparatus and ink-jet printing process. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, May 14, 2002: US06387168 (56 worldwide citation)

Disclosed herein is an ink comprising a first pigment, a second pigment and a dispersant, both of the pigment being dispersed in an aqueous medium, wherein the first pigment is a self-dispersing pigment having an anionic group or a cationic group, the group being bonded directly or through an atomic ...


8
Yoshihisa Takizawa, Makoto Aoki, Yutaka Kurabayashi: Ink-jet recording process, and ink set and ink-jet recording instrument for use in such process. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 22, 1997: US05623294 (54 worldwide citation)

Disclosed herein is an ink-jet recording process which comprises applying a first liquid at least containing a water-soluble resin having at least one carboxyl group or anhydride thereof, or sulfonic group per molecule to a recording medium and then applying an ink at least comprising water, an orga ...


9
Yui Tokuda, Mikio Sanada, Yoshihisa Takizawa, Masashi Ogasawara, Tomonari Watanabe, Takashi Imai, Yasuhiro Nito, Tetsu Iwata, Shinichi Hakamada, Sadayuki Sugama: Aqueous ink, ink-jet recording method, ink cartridge, recording unit, ink-jet recording apparatus and image forming method. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, October 2, 2007: US07276112 (51 worldwide citation)

Disclosed is an aqueous ink comprising at least water, a plurality of water-soluble organic solvents and a coloring material. The coloring material is a pigment, and, it contains a pigment particle having at least one ionic group bonded to a surface of the pigment particle directly or via another at ...


10
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 ...