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
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)


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, 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)


5
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 ...


6
Koichi Osumi, Shinya Mishina, Mikio Sanada, Hisashi Teraoka: Ink, ink-jet recording process, recording unit, ink cartridge and ink-jet recording apparatus. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, April 23, 2002: US06375317 (50 worldwide citation)

An ink comprising particles of self-dispersing carbon black having at least one hydrophilic group at the surface thereof, and calcium in an aqueous medium. The ink can form images excellent in fastness properties such as water fastness and light fastness and character quality, and can be stably ejec ...


7
Hisashi Teraoka, Shinya Mishina, Mikio Sanada, Koichi Osumi: Ink set, ink-jet recording process, ink-jet recording apparatus, and method for alleviating formation of solid within common recovery-system unit. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, July 30, 2002: US06425662 (47 worldwide citation)

An ink set comprising a black ink and a color ink, suitable for an ink-jet recording apparatus comprising a common recovery system for a black ink-ejecting orifice and a color ink-ejecting orifice. The black ink comprises particles of self-dispersing carbon black having at least one anionic hydrophi ...


8
Hiroyuki Takuhara, Yoshihisa Takizawa, Kumiko Mafune, Hisashi Teraoka, Yoichi Takada, Noriyasu Asaki, Yuko Takada, Tsuyoshi Kanke: Ink set, ink jet recording method, recording unit, ink cartridge, ink jet recording apparatus, bleed-alleviating method, and method for improving fixability of black image. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, March 16, 2004: US06706104 (36 worldwide citation)

An ink set which comprises a black ink containing an aqueous medium and a pigment dispersed in the aqueous medium by an action of an ionic group, and at least two color inks each containing a coloring material and an aqueous medium, wherein (i) respective images formed with the respective color inks ...


9
Yoshihisa Takizawa, Hisashi Teraoka, Koichi Osumi, Yoichi Takada: Ink set, and recording method and recording instrument using the same. Canon Kabushiki Kaisha, Fitzpatrick Cella Harper & Scinto, January 29, 2002: US06342095 (32 worldwide citation)

Disclosed herein is an ink set comprising two black inks the coloring materials for which are both pigments, wherein one black ink is cationic, and the other black ink is anionic.


10
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, September 22, 1999: EP0943666-A2 (32 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)2SO4, CH3COO(M1), Ph_COO(M1), (M1)NO3, (M1)Cl, (M1)Br, (M1)I, (M1)2SO3 and (M1)2CO3, wh ...