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Riso Kagaku Corporation patents


Recent patent applications related to Riso Kagaku Corporation. Riso Kagaku Corporation is listed as an Agent/Assignee. Note: Riso Kagaku Corporation may have other listings under different names/spellings. We're not affiliated with Riso Kagaku Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Riso Kagaku Corporation-related inventors


Inkjet printing apparatus with wiper for inkjet head

An inkjet printing apparatus includes: a print bar unit having a print bar, a maintainer, and a movement driver; and a controller. Upon maintenance of an inkjet head of the print bar, the controller is configured to drive the movement driver to move the maintainer from a deployment position to... Riso Kagaku Corporation

Inkjet printing web being print medium

An inkjet printing apparatus includes: a print bar unit including an inkjet head configured to eject ink to a web being conveyed; and a guide configured to guide movement of the print bar unit in a print bar movement direction intersecting a conveyance direction of the web between a first... Riso Kagaku Corporation

Printing apparatus with access portions for access to inside of housing

A printing apparatus includes a plurality of components for the printing apparatus, and a housing configured to house the plurality of components in an inside of the housing and having a plurality of access portions used by a user and a service man to access the inside of the housing.... Riso Kagaku Corporation

Printing apparatus with separable housings

A printing apparatus includes: a first component; a second component; a first housing configured to house the first component; a second housing configured to house the second component and movably supported on an installation surface on which the printing apparatus is installed; and a connector configured to connect the second... Riso Kagaku Corporation

Sheet loading device

The rotational pin and the lock pin are laterally provided in the right and left first brackets that are fixed to the right and left side surfaces of the sheet loading tray respectively, and furthermore, the right and left second brackets are fixed to the right and left of the... Riso Kagaku Corporation

Aqueous inkjet ink set for textile printing and producing printed item

An aqueous inkjet ink set for textile printing is disclosed, the aqueous inkjet ink set including two or more aqueous inkjet inks that include a black ink, wherein among the charge density Cd values measured by the streaming potential method for the two or more aqueous inkjet inks, the Cd... Riso Kagaku Corporation

Inkjet printing machine

An inkjet printing machine includes a controller and performs margin-less printing on a base material on the basis of image data having a size larger than that of the base material by discharging ink from an inkjet head while relatively moving the base material and the inkjet head for one... Riso Kagaku Corporation

Conveyance apparatus of web being print medium

A conveyance apparatus includes a conveyance roller, a conveyance motor, a back tension roller, a conveyance speed detector, a brake, and a controller. The controller is configured to: based on a conveyance speed of a web detected by the conveyance speed detector, control a value of a drive control parameter... Riso Kagaku Corporation

Thermal stencil making unit

A thermal stencil making unit that makes a stencil of a perforated image on a thermal gauze by moving a thermal print head having the plurality of heat elements relative to the thermal gauze tightly stretched in a gauze frame detachably set in a unit housing, includes a head-protecting member... Riso Kagaku Corporation

Printer with lower conveyer

A controller, upon remaining sheets existing in both a print conveyer and a lower conveyer and a sheet size of the sheets being equal to or larger than a specified size upon occurrence of a sheet jam: control an elevator to maintain the print conveyer at a print position, determine... Riso Kagaku Corporation

Oil-based inkjet ink set and producing printed item

An oil-based inkjet ink set including two or more liquid compositions, for use with an inkjet head having two or more discharge port arrays, wherein at least one of the two or more liquid compositions is an oil-based inkjet ink, the initial boiling point of each of the two or... Riso Kagaku Corporation

Ink fill device, ink filling method, ink cartridge manufacturing method and ink cartridge

A joint section of a fill device is coupled to a supply opening of an ink cartridge, and a pressing force section presses an inside plug of the ink cartridge into the supply opening, to press down the inside plug against a biasing unit and release an opening to connect... Riso Kagaku Corporation

Image processing print job data in pdl format

An image processing apparatus includes a processor and a memory including instructions. The instructions, when executed by a processor, cause the processor to perform operations including: receiving a print job data in a PDL format from an external apparatus; determining whether a Generator of the print job data satisfies a... Riso Kagaku Corporation

Printing system, information processing device, and printing machine

In a printing system, a print job data generating unit of an information processing device generates print job data that includes job settings data which includes at least one of mechanical initialization information and job registration information to be used in a printing machine and which is described in a... Riso Kagaku Corporation

Image processing apparatus

An image processing apparatus includes an image processor that performs error diffusion processing by applying an error diffusion matrix to multi-valued image data having pixels two-dimensionally arranged, so as to convert the multi-valued image data into binary image data. The binarization unit applies an error diffusion matrix in which the... Riso Kagaku Corporation

Inkjet printer with density correction function

A controller of an inkjet printer: calculates second density correction values for respective nozzles arranged in a predetermined direction to print a second line of an image data, by using gray-level values of pixels in the second line of the image data corresponding to the respective nozzles and first density... Riso Kagaku Corporation

Ink cartridge

An ink cartridge contains an outer package, an ink container within the outer package, and sheet bodies attached to an outer surface of the outer package, and is attachable to and detachable from a printing device. Small pieces are formed by cuts in the outer package. The small pieces include... Riso Kagaku Corporation

Inkjet printing machine

A controller determines the amount of driving by a sub-scanning driver and the number of nozzles to be used in accordance with a maximum amplitude of vibration of an inkjet head in a sub-scanning direction, where the maximum amplitude is detected by a displacement detecting sensor when the inkjet head... Riso Kagaku Corporation

Ink cartridge

An ink cartridge includes: an ink container formed of a thermoplastic film material filled with predetermined ink; an outer package as an outer box in which the ink container is inserted; and an engagement part provided at one longitudinal end part of the ink container and engaging with a cartridge... Riso Kagaku Corporation

Ink cartridge, tag discrimination in same, reproducing ink cartridge

An engagement part fitted in an outer package of an ink cartridge is provided with: a fit-in rib which is provided at a circumferential edge on a rear side and which serves as a guide upon engagement with an opening of the outer package; an engagement rib provided upright at... Riso Kagaku Corporation

Conveyance control device

A conveyance control device controls conveyance of a plurality of sheets including an image-formed sheet. The conveyance control device includes an obtaining unit configured to obtain display image data indicating a display image of each of the plurality of sheets; a region-specifying unit configured to specify common color regions having... Riso Kagaku Corporation

Printing device

A controller in a one-side printing mode moves movable rollers to form a one-side printing route and moves a second head unit so that the second head unit faces a front side of a web. The controller then controls a first head unit and a second head unit to print... Riso Kagaku Corporation

Print system including multiple printers

A print system includes a first printer which performs printing on a sheet while conveying the sheet and a second printer which receives the sheet conveyed from the first printer and performs printing on the sheet while conveying the sheet. The second printer includes a second printing unit, a second... Riso Kagaku Corporation

Inkjet printer

A controller of an inkjet printer performs control to: during ink delivery in a first ink tank pair, as a preparation of ink delivery in a second ink tank pair, generate positive pressure and negative pressure respectively in third and fourth ink tanks of the second ink tank pair and... Riso Kagaku Corporation

Print data generating apparatus, print data generating program, and printing apparatus

High speed print output is enabled, while eliminating the burden of rearranging printed matter in page order placed on users. A plurality of pages of print job data are divided into groups of a predetermined number of pages, and the divided plurality of pages are assigned to the print job... Riso Kagaku Corporation

Inkjet printing machine

The inkjet printing machine includes a controlling unit, an inkjet head including a plurality of nozzles, and a head elevating motor that causes the inkjet head to move up or down. The controlling unit causes, while the inkjet head is being moved in a main-scanning direction, the head elevating motor... Riso Kagaku Corporation

Printing system

When it is determined by the post-process determination unit that a received top job requires a bookbinding process (post-process) and that a received subsequent job does not require a bookbinding process (post-process), the sheet setting determination unit determines whether or not there is a match between the sheet size (sheet... Riso Kagaku Corporation

Image reading apparatus

An image reading apparatus includes a light emitting element, a luminance calculating unit, a light amount setting unit, and a storing unit. The light amount setting unit, in each line period, causes the light emitting element to emit a light with gradually changing a reference light amount from a reference... Riso Kagaku Corporation

Expendable supply for printer

An expendable supply includes a memory that stores a timing of a last warning after a recommended limit. A warning generator of a printer determines whether to generate a warning upon occurrence of certain operations. The warning generator generates a warning when the last warning generation time is not stored... Riso Kagaku Corporation

Image forming apparatus using drawing data described in pdl

An image forming apparatus: upon determining that OR drawing of a first drawing object and a second drawing object included in received drawing data is not possible, drives one of a plurality of arithmetic processors to sequentially execute a first drawing process of the first drawing object and a second... Riso Kagaku Corporation

Image processing method and image processing device for gray output signal

An image processing method comprising: converting an RGB input signal to a CMYK signal; converting the RGB input signal to a common color signal including lightness; generating a first Gray signal including a Gray value substituted for CMY values forming gray in the CMYK signal; generating a second Gray signal... Riso Kagaku Corporation

Inkjet printer

An inkjet printer includes plural inkjet heads that are aligned in a head alignment direction to form a head row, a blower that blows air to the head row from one side along the head alignment direction, and an aspirator that is disposed on an extended line of the head... Riso Kagaku Corporation

Inkjet printer

An inkjet printer includes: a printing unit including an inkjet head and configured to eject an ink from the inkjet head while conveying a sheet in a conveying direction along a printing route to perform printing on the sheet; and a downstream side conveyor arranged downstream of the printing unit... Riso Kagaku Corporation

Image processing monochrome conversion and image forming apparatus including the same

An image processing apparatus performs operations including: when a density value of a black component in uncorrected monochrome image data corresponding to each of pure colors including primary colors and secondary colors in color image data is lower than a reference density value, the uncorrected monochrome image data being obtained... Riso Kagaku Corporation

Inkjet printing machine and ink cartridge

There are provided: a maintenance unit that performs a maintenance operation simultaneously on the plurality of inkjet heads, a memory that stores, for each of ink types, a settable range of a maintenance cycle of a maintenance operation as maintenance information; and a controller that reads, from the maintenance information... Riso Kagaku Corporation

02/02/17 / #20170028755

Inkjet printer for continuous paper

A controller drives a conveyer to start to convey a sheet of continuous paper and accelerates the sheet to a printing conveyance speed, and drives an inkjet head to start to perform a printing while driving the conveyer to convey the sheet at the printing conveyance speed. The controller drives... Riso Kagaku Corporation

02/02/17 / #20170034386

Image scanning apparatus

An image scanning apparatus performs operations including: upon detection of a first angle, causing light to be emitted to an original and recording a distribution of reflected light of the emitted light as first read data; upon elapse of a predetermined time from detection of a second angle, causing light... Riso Kagaku Corporation

01/19/17 / #20170015793

Colored resin particle dispersion, producing same, and inkjet ink

A colored resin particle dispersion and an inkjet ink are provided which preferably exhibit excellent rub fastness and alcohol resistance, and yield printed items having high image density. Specifically, a colored resin particle dispersion includes colored resin particles, a basic dispersant and a non-aqueous solvent. The colored resin particles include... Riso Kagaku Corporation

01/19/17 / #20170015854

Inkjet ink

An inkjet ink is provided which preferably having a small particle size and excellent intermittent dischargeability. Moreover, the inkjet ink is provided which preferably improving the storage stability of the inkjet ink, and printing a printed item having excellent rub fastness. Specifically, an inkjet ink comprising colored resin particles, a... Riso Kagaku Corporation








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