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Masahiko Kubo
Masahiko Kubo, Osaka-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100142999 | TONER, TWO-COMPONENT DEVELOPER, DEVELOPING DEVICE, FIXING DEVICE, AND IMAGE FORMING APPARATUS - The present invention realizes: a toner that ensures fixing property only by a laser fixing system where a toner is fixed by irradiation of laser light whose wavelength is adjusted to be in an absorption wavelength range of each color of the toner, and realizes an image without poor color reproducibility caused by an infrared absorbent; a two-component developer containing the toner; a developing device; a fixing device; and an image forming apparatus. A capsule toner, which is the toner of the present invention, is arranged such that the capsule toner has a two-layer structure where a coating layer is formed around a surface of a core particle serving as a toner matrix particle, and nb/na is in a range of 0.92 to 0.96 where nb/na is a ratio of a refractive index of a resin making up the coating layer (nb) to a refractive index of a resin making up the core particle (na). | 06-10-2010 |
| 20110097658 | ELECTROPHOTOGRAPHIC TONER - The present invention provides an electrophotographic toner comprising a polyester resin as binder resin and a colorant, said polyester resin being the condensation product of at least one polyhydric alcohol with at least one polybasic acid, wherein said at least one polyhydric alcohol comprises cyclohexanedimethanol, said toner having a loss modulus of from 2×10 | 04-28-2011 |
| 20110229815 | LIGHT FIXABLE TONER AND TWO-COMPONENT DEVELOPER - A light fixable toner which is not containing an infrared absorbent and fixed by light irradiation, and a two-component developer containing the light fixable toner are provided. The light fixable toner contains a binder resin, a colorant and an internal additive having an average particle size of 0.50 μm or more and 1.40 μm or less, and a shape factor SF-2 is 105 or more and 120 or less, a relative refractive index n | 09-22-2011 |
Masahiko Kubo, Ebina-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090022511 | IMAGE FORMING DEVICE, IMAGE PROCESSING DEVICE, IMAGE FORMING METHOD, COMPUTER READABLE MEDIUM, AND COMPUTER DATA SIGNAL - An image forming device has an imaging unit including: a rotating body; an exposure unit forming an electrostatic latent image on the rotating body; a developing unit developing the latent image using developer to form an image; and a transfer unit transferring the image to a recording medium, a memory storing data on correspondence between first image data, second image data and a first correction amount, the first image data representing a first latent image formed by a first turn of the rotating body, the second image data representing a second latent image formed by a second turn of the rotating body, and the first correction amount used for correcting the second image data so that density of the image on the recording medium closer to density of the second latent image; a correction amount determining unit determining the first correction amount corresponding to the first and second image data based on the data stored in the memory; and a correcting unit correcting the second image data based on the first correction amount. | 01-22-2009 |
| 20100202789 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus is provided and includes: an image forming unit that forms an image on an image carrier with a transparent material and a coloring material; a controller that controls an order of an image forming with the transparent material and an image forming with the coloring material to be different between in an image portion and in a non-image portion in an image forming region on the image carrier; and a transferring unit that transfers the image formed on the image carrier onto a recording medium | 08-12-2010 |
| 20110064436 | IMAGE GLOSS CONTROL APPARATUS, IMAGE FORMING APPARATUS, IMAGE FORMING SYSTEM, AND STORAGE MEDIUM STORING PROGRAM - An image gloss control apparatus that includes a first control component and a second control component is provided. The first control component controls an image forming/fixing component, which forms an image on a recording medium using a colored image formation material and fixes the image, so that a first image is formed in a high gloss area having a high gloss level on the recording medium or an area including the high gloss area on the recording medium and is fixed. The second control component that controls the image forming/fixing component, so that a second image having a density lower than a density of the first image is formed in a low gloss area having a gloss level lower than the gloss level of the high gloss area on the recording medium where the first image is formed or the low gloss area on the first image and is fixed. | 03-17-2011 |
Masahiko Kubo, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20110058224 | COLOR PROCESSOR, IMAGE FORMING APPARATUS, COLOR PROCESSING METHOD AND COMPUTER READABLE MEDIUM - A color processor includes: an acquisition unit that acquires first and second multi-valued color signals respectively indicating in a multi-valued manner quantities of first and second color materials used for reproducing color with a specific hue, the second color material having a different density from the first color material; a generation unit that generates first and second binary color signals by performing dither processing, respectively with first and second dither matrices, for the first and second multi-valued color signals acquired by the acquisition unit, the second dither matrix having the same angle and the same number of lines as the first dither matrix and being used for forming halftone dots at positions different from positions of halftone dots formed by use of the first dither matrix; and an output unit that outputs to a print mechanism the first and second binary color signals generated by the generation unit. | 03-10-2011 |
Masahiko Kubo, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20110059395 | LIGHT FIXING TONER, AND ONE-COMPONENT DEVELOPER AND TWO-COMPONENT DEVELOPER CONTAINING THE LIGHT FIXING TONER - A light fixing toner fixed by light irradiation without containing an infrared absorber, a one-component and a two-component developer containing the light fixing toner are provided. An infrared absorber-free light fixing toner is constituted of toner base particles containing a binder resin and a colorant, and having a shape factor SF-2 of from 105 to 115, and external additives, wherein a relative refractive index n | 03-10-2011 |
Masahiko Kubo, Nara JP
| Patent application number | Description | Published |
|---|---|---|
| 20090170020 | TONER, TWO-COMPONENT DEVELOPER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS - A toner in which even a toner containing crystalline polyester exhibits excellent fixing property, chargeability, color reproducibility, and long-term stability, as well as a two-component developer, a developing device, and an image forming apparatus are provided. The toner includes toner base particles which contain a colorant and a binder resin containing at least crystalline polyester and an amorphous resin; and a mixed oxide of aluminum oxide and silicon dioxide externally added to the toner base particles, and the toner is so adjusted that the binder resin contains 20% by weight to 50% by weight of the crystalline polyester and that a compositional proportion of aluminum oxide in the mixed oxide of aluminum oxide and silicon dioxide falls within a range of 35% by weight or more and less than 50% by weight. | 07-02-2009 |
Masahiko Kubo, Nara-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090142687 | TONER AND METHOD FOR MANUFACTURING THE TONER, TWO-COMPONENT DEVELOPER, DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A toner which takes into account preservation of the global environment and which is excellent in fixability and storage stability and moreover, good in light transmittance and a method for manufacturing the toner, a two-compartment developer, a developing device and an image forming apparatus are provided. In toner including at least a binder resin and a colorant, the binder resin includes a resin which is a major component and a biomass-containing crystalline resin; and the crystalline resin is contained in an amount of 1 part by weight or more and 50 parts by weight or less based on 100 parts by weight of the binder resin, and a melting point of the crystalline resin is higher by a temperature of from 5° C. to 10° C. than a temperature at which a loss modulus G″ of the toner at a frequency of 1 Hz is 10 | 06-04-2009 |
| 20090148191 | COLOR TONER, DEVELOPER, DEVELOPING DEVICE, AND IMAGE FORMING APPARATUS - A color toner, a developer, a developing device for performing development by using the developer and an image forming apparatus having the developing device are provided. A developer, which contains a color toner formed by adding zinc oxide particles externally to the surfaces of toner base particles containing binder resin and colorant, in which the average primary particle size of zinc oxide particles falls in a range of 10 nm or more and 50 nm or less, the average particle size of primary-particle aggregates of zinc oxide particles is 0.3 μm or less and the zinc oxide particle is made of zinc oxide doped with aluminum, is charged in a developer tank of a developing device of an image forming apparatus for image formation. | 06-11-2009 |
Masahiko Kubo, Toyota-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080257624 | Cooling device for electric apparatus mounted on vehicle - Exhaust air from an electric-powered battery cooling fan which draws in an exhaust airflow from a battery for traveling purpose is diffused in a direction to a ventilating opening provided in a first cross member, as shown by an arrow C ( | 10-23-2008 |
Masahiko Kubo, Hyogo JP
| Patent application number | Description | Published |
|---|---|---|
| 20120100421 | SECONDARY BATTERY - Disclosed is a battery | 04-26-2012 |