| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 430420100 | To produce color reproduction (i.e., two or more colors specified) | 10 |
| 20080213681 | Image Forming Method, Screen Set And Image Forming Apparatus - An image forming apparatus for forming a color image of CMK color plates by electrophotography system in which a K color plate having highest visibility among CMYK colors is composed of a rational number mesh. Profile of halftone dots (201Kh) becomes constant substantially and the factor for generating streak and unevenness is suppressed. Furthermore, C color plate and M color plate are formed of super cells and the K color plate, C color plate and M color plate are formed at an interval of 30°. Consequently, a Rosetta formed of halftone dots (201Ch, 201Mh, 201Kh) of CMK is optimized and the factor for generating moiré component is suppressed. | 09-04-2008 |
| 20090239164 | TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT, FULL-COLOR TONER KIT AND IMAGE FORMING METHOD - An electrophotographic toner for electrostatic image development which is capable of obtaining a high chroma full-color image exhibiting clear color without color contamination and excellent light stability is disclosed, comprising a resin and a colorant, wherein the colorant comprises a pigment of C.I. Pigment Blue | 09-24-2009 |
| 20090305154 | TRI-LEVEL XEROGRAPHY FOR HYPOCHROMATIC COLORANTS - A xerogrpahic system and method use a tri-level development process in which at least one xerographic imaging unit includes a photoreceptor and a pair of developer units. A first developer unit includes a conventional first toner of a given color (CYMK) and a second developer unit includes a hypochromatic light form of the first toner. By use of a specific tri-level process, excellent color-to-color registration can be achieved for each processed color separation because overlap between colorants can be prevented. Moreover, by use of two forms of the same colorant, a smoother tone reproduction curve can be achieved when an aggressive blending strategy is used. Gamut loss and ink limit violation can be avoided by adjusting the blending curve in certain situations. An exemplary implementation uses a four drum, eight color tandem architecture with formulations of Cyan, Magenta, Yellow and Black, as well as corresponding hypochromatic light colorants of light Cyan, light Magenta, light Yellow, and light Black (gray). | 12-10-2009 |
| 20110081606 | ELECTROSTATIC IMAGE DEVELOPING TONER AND IMAGE FORMING METHOD - Disclosed is an electrostatic image developing toner comprised of toner particles containing a binding resin and a coloring agent, and the coloring agent contains a black color material and a cyan color material, the content of the black color material being 0.5 to 3 parts by mass with respect to 100 parts by mass of the above binding resin, as well as the content of the cyan color material being 0.1 to 0.5 parts by mass with respect to 100 parts by mass of the above binding resin. | 04-07-2011 |
| 20110151362 | ELECTROSTATIC IMAGE DEVELOPING GRAY TONER AND IMAGE FORMING METHOD - An electrostatic image developing gray toner is disclosed. The gray toner is composed of toner particles comprising a binding resin, two species of chromatic color coloring agents and carbon black in an amount of 0 to 0.001 weight % of amount of the chromatic color coloring agents, the toner having brightness L* of 30 to 90 and chroma C* of not more than 10 in L*a*b* color system measured in single solid toner image formed by only the gray toner having an amount of toner attached of 4 g/m | 06-23-2011 |
| 20110207037 | METHOD FOR FORMING FULL COLOR IMAGE AND FULL COLOR IMAGE FORMING APPARATUS - Disclosed is a manufacturing method for forming a full color image and an apparatus for forming a full color image exhibiting excellent color chroma for a secondary color and extension of a color reproduction area in a range of red to orange color. A method for forming a full color image using at least six colors of an electrostatic image developing toner each comprising a resin and a colorant, wherein six colors of an electrostatic image developing toner are a yellow toner, a magenta toner, a cyan toner, an orange toner, a green toner and a black toner, and the colorant containing in the orange toner is a pyrazolone pigment. | 08-25-2011 |
| 430430100 | With color correction step | 1 |
| 20110065031 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus comprising an exposure device for exposing an image bearing member to light in accordance with monochromatic image data provided by color separation of inputted multi-color image data to form an electrostatic latent image; a control device for calculating an exposure amount of each pixel of the monochromatic image data to expose the image bearing member with the calculated exposure amount; wherein the control device includes a monochromatic correcting device for calculating a correction amount in accordance with a pixel value of a pixel around a target pixel of the monochromatic image data to correct an exposure amount of the target pixel on the basis of the calculated amount; wherein the control device includes a multi-color correcting device for providing a coefficient for correction of the exposure amount on the basis of the multi-color image data; wherein the monochromatic correcting device controls the exposure amount using the coefficient and the correction amount provided by the multi-color correcting device. | 03-17-2011 |
| 430450100 | Process with identified developing composition or identified developing step (e.g., toner binder, softening point, reversal developing, etc.) | 3 |
| 430450500 | Developing composition having subtractive colorant (i.e., cyan, magenta, or yellow) | 3 |
| 20090246656 | TONER FOR ELECTROSTATIC IMAGE DEVELOPMENT, FULL-COLOR TONER KIT AND IMAGE FORMING METHOD - An electrophotographic toner for electrostatic image development which is capable of obtaining a high chroma full-color image exhibiting clear color without color contamination and achieving enhanced lightfastness is disclosed, comprising a resin and a colorant, wherein the colorant comprises a pigment of C.I. Pigment Red 209. There are also disclosed a full-color toner kit and an image forming method by use of the toner. | 10-01-2009 |
| 20120219892 | GREEN TONER FOR DEVELOPING STATIC LATENT IMAGE AND FULL COLOR IMAGE FORMING METHOD - Disclosed is a green toner for developing a static latent image containing a binder resin and a colorant, and the colorant contains C.I. Solvent Green 5 and colorant compound X represented by Formula (1), and content ratio of C.I. Solvent Green 5 in whole amount of the colorant is 5 to 50% by weight, | 08-30-2012 |
| 430450550 | Identified toner or colorant surface area or size (e.g., pigment size, etc.) | 1 |
| 20090291375 | FULL COLOR IMAGE FORMATION PROCESS - Disclosed is a process of forming a full color image according to electrophotography, employing a yellow toner, a magenta toner and a cyan colorant, the process comprising the step of forming a yellow toner image, a magenta toner image and a cyan toner image on a recording material, wherein the yellow toner image has reflectance (in terms of %) satisfying formulas (11) through (14) below, the magenta toner image has reflectance (in terms of %) satisfying formulas (21) through (24) below, and the cyan toner image has reflectance (in terms of %) satisfying formulas (31) through (34) below. | 11-26-2009 |
