1
Ryoji Tan, Shigeyoshi Tanaka, Ken ichi Kishi, Yasuyuki Iguchi, Takeo Kudo, Takashi Amano, Hideki Kohno: Process for producing toner for electrophotography. Hitachi Chemical, Antonelli Terry Stout & Kraus, January 8, 1991: US04983488 (122 worldwide citation)

A toner for electrophotography produced by polymerizing a monomer dispersed by emulsification in the presence of a colorant and/or a magnetic powder, followed by coagulation is excellent in properties, particularly in cleaning properties, charge stability and caking resistance.


2
Ryoji Tan, Shigeyoshi Tanaka, Ken ichi Kishi, Yasuyuki Iguchi, Takeo Kudo, Takashi Amano, Hideki Kohno: Process for producing toner for electrophotography. Hitachi Chemical Company, Antonelli Terry Stout & Kraus, November 19, 1991: US05066560 (40 worldwide citation)

A toner for electrophotography produced by polymerizing a monomer dispersed by emulsification in the presence of a colorant and/or a magnetic powder, followed by coagulation is excellent in properties, particularly in cleaning properties, charge stability and caking resistance.


3

4
Hiroshi Mizuhata, Yutaka Murai, Manabu Suzuki, Hiromi Nambu: Process for producing toner for electrophotography. Kao Corporation, Oblon Spivak McClelland Maier & Neustadt L, October 16, 2012: US08288070 (2 worldwide citation)

The present invention relates to a toner for electrophotography which exhibits an excellent heat-resistant storage property and a wide fusing temperature range, and a process for producing the toner for electrophotography. There are provided a process for producing a toner for electrophotography whi ...


5
Nobumichi Kamiyoshi, Manabu Suzuki, Yutaka Murai: Process for producing toner for electrophotography. KAO Corporation, Oblon Spivak McClelland Maier & Neustadt L, February 14, 2012: US08114564 (1 worldwide citation)

The present invention relates to a process for producing a toner for electrophotography which includes the steps of (A) forming resin-containing core particles having a volume median particle size (D50) of from 1 to 10 μm in an aqueous medium; (B) adding composite fine particles containing a polyest ...


6
Nobumichi Kamiyoshi, Manabu Suzuki, Yutaka Murai: Process for producing toner for electrophotography. Kao Corporation, Oblon Spivak McClelland Maier & Neustadt L, June 1, 2010: US07727699 (1 worldwide citation)

The present invention relates to a process for producing a toner for electrophotography, including: (a) a step of aggregating resin particles containing a resin binder in an aqueous medium; and (b) a step of unifying the aggregated resin particles, the step (a) including: (a-1) a step of adding a mo ...


7
MURATA Shoichi, IKENAGA Takayuki, OKUNO Takashi, MIZUHATA Hiroshi, YOKOTA Keishi, SHIMOKUSA Koji, KAMEYAMA Kojiro: PROCÉDÉ DE FABRICATION DUN TONER DÉLECTROPHOTOGRAPHIE, PROCESS FOR PRODUCING TONER FOR ELECTROPHOTOGRAPHY. KAO CORPORATION, MURATA Shoichi, IKENAGA Takayuki, OKUNO Takashi, MIZUHATA Hiroshi, YOKOTA Keishi, SHIMOKUSA Koji, KAMEYAMA Kojiro, OHTANI Tamotsu, June 28, 2012: WO/2012/086523 (1 worldwide citation)

The present invention relates to a process for producing a toner for electrophotography which includes the step of fusing aggregated particles containing resin particles (A) and releasing agent particles in an aqueous mixed solution containing the aggregated particles and an anionic surfactant havin ...


8
Shinichi Sata, Takehiro Tsutsumi, Hiroshi Mizuhata: Process for producing toner for electrophotography. Kao Corporation, Oblon Spivak McClelland Maier & Neustadt L, February 17, 2015: US08956798

The present invention relates to a process for producing a toner for electrophotography which is excellent in dispersibility of a colorant in the toner and capable of considerably improving an image density, as well as a toner for electrophotography which is produced by the process. There is provide ...


9
Shoichi Murata, Takayuki Ikenaga, Takashi Okuno, Hiroshi Mizuhata, Keishi Yokota, Koji Shimokusa, Koji Kameyama: Process for producing toner for electrophotography. Kao Corporation, Oblon McClelland Maier & Neustadt L, April 14, 2015: US09005868

The present invention relates to a process for producing a toner for electrophotography which includes the step of fusing aggregated particles containing resin particles (A) and releasing agent particles in an aqueous mixed solution containing the aggregated particles and an anionic surfactant havin ...


10
Kazuhiro Ishikawa: Process for producing toner for electrophotography. Kao Corporation, Oblon Spivak McClelland Maier & Neustadt L, December 7, 2010: US07846636

The present invention relates to a process for readily producing a toner for electrophotography which contains toner particles having a small particle size and a narrow particle size distribution, and a toner for electrophotography having a small particle size and a narrow particle size distribution ...



Click the thumbnails below to visualize the patent trend.