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Riso Kagaku Corporation Patents
Assignee:
Riso Kagaku Corporation
Address:
Tokyo, JP
No. of patents:
514
Patents:


1 2 3 4 5 6 7 8 9 10 11


Patent Number Title Of Patent Date Issued
D533899 Hub for a printing paper roll December 19, 2006
D530365 Ink cartridge October 17, 2006
D529000 Integrated circuit tag September 26, 2006
D526353 Ink cartridge August 8, 2006
D524368 Ink cartridge July 4, 2006
D524367 Ink cartridge July 4, 2006
D524366 Ink container July 4, 2006
7582153 Aqueous ink for inkjet September 1, 2009
An aqueous ink for an inkjet is provided, including: a pigment; a water-soluble organic solvent A including at least one of a diglycerol and a polyglycerol; a water-soluble organic solvent B including a polyethylene glycol monoalkyl ether represented by formula (1): RO--(CH.sub.2CH.s
7581801 Image forming apparatus September 1, 2009
An image-forming apparatus has: a transfer belt transferring a sheet; an encoder outputting a pulse signal in response to a rotational motion of the transfer belt; a belt reference sensor detecting a belt reference mark provided on the transfer belt; a first accumulator measuring a r
7555728 Preventing unintentional selection of a touch panel button via gray out for a predetermined time June 30, 2009
A display unit displaying an image and selection buttons on a display screen is provided, and a touch panel in which a desired position on the display screen can be specified is provided on the display unit. Furthermore, a coordinate detection unit and a button processing unit are pr
7540578 Inkjet recording apparatus June 2, 2009
An inkjet recording apparatus includes recording heads with nozzles selectively discharging ink and arranged at a predetermined pitch in a line. The recording heads are arranged in a zigzag fashion. Respective ends of two adjacent recording heads are overlapped with each other to for
7536950 Stencil printing system with print pressure controlling means May 26, 2009
To make the stencil printing at a stabilized density from the start of printing in a stencil printing where a plurality of kinds of inks different from each other in volatility and/or viscosity are used. Information representing the volatility and/or viscosity of ink is stored in a s
7530304 Stencil printing system with rotational speed control of the print drum May 12, 2009
To make the stencil printing at a stabilized density from the start of printing in a stencil printing where a plurality of kinds of inks different from each other in volatility and/or viscosity are used. Information representing the volatility and/or viscosity of ink is stored in a s
7525686 Image processor and image processing program for applying image processing to input data and tra April 28, 2009
The effective image area detector 4 detects an effective image area within image data subjected to color conversion, and an image processing/screening unit 5 applies image processing to image data in the effective image area and transfers the processed image data in the effective ima
7523702 Method and system for controlling thermal head and stencil material roll April 28, 2009
In a thermal head control system for controlling heating energy to a thermal had perforating stencil material unrolled from a stencil material roll, the heating energy to a thermal head is controlled according to the surface condition of the stencil material. The residue of stencil m
7463785 Image processing system December 9, 2008
In an image processing system, whether relevant pixels in the character image information obtained by reading an original on which characters have been recorded are object pixels to be subjected to enhancement processing is determined. The relevant pixel is determined to be an object
7441498 Image forming system October 28, 2008
An image forming system includes a mounting portion in which an expendable provided with a memory in which distinguishment information representing whether the expendable is compatible is stored is removably installed. The distinguishment information stored in the memory of the expendabl
7440142 Image processing system with multi-valued processing October 21, 2008
An image processing system receives an input gradient number m, input image data I(x,y) whose input gradient number is m, and an output gradient number n and calculates output image data O(x,y) having an output gradient number of n on the basis of the following formula (1). O(x,y)=in
7430961 Method of and system for forming image and an expendable October 7, 2008
To make the stencil printing at a stabilized density from the start of printing in a stencil printing where a plurality of kinds of inks different from each other in volatility and/or viscosity are used. Information representing the volatility and/or viscosity of ink is stored in a s
7428073 Post card making device September 23, 2008
To make it possible with a post card making device composed of an original reading device and an image printing device that an image is prepared on an upward facing original image preparation surface, and in that condition, the original image can be read in by the original reading de
7426063 System and apparatus for image-formation, and computer-readable for recording medium recording p September 16, 2008
An image-formation system includes an image display function which displays, at a display section, images of a plurality of desired original monochromatic images for output among original monochromatic images for output which are stored in an image storage means; a page combining fun
7415926 Stencil printing machine with stencil clamping portion August 26, 2008
A stencil clamping portion which clamps a tip end of a stencil sheet on an outer peripheral wall of a drum is provided, and the stencil sheet clamped by the stencil clamping portion is wound and attached around the outer peripheral wall. The stencil clamping portion includes an insertion
7409907 Stencil printing machine with a plurality of drum units and method of controlling the same August 12, 2008
A controller reads out image data of an area frame that a user has drawn on an original and accurately extracts the area frame by removing noise from the read-out image data to divide image data of an area outside the area frame and image data of an area inside the area frame into separa
7407266 Ink container and ink container loading structure August 5, 2008
An image forming system includes a mounting portion in which an expendable provided with a memory in which distinguishment information representing whether the expendable is compatible is stored is removably installed. The distinguishment information stored in the memory of the expendabl
7401551 Stencil printing machine July 22, 2008
A stencil printing machine includes a drum on which a stencil sheet is mounted, and a pressure roller which presses a print sheet fed between the drum and the pressure roller and rotates together with the drum. The print sheet is fed from an upstream side of the pressure roller in a
7389433 Image forming system June 17, 2008
An image forming portion carries out image formation processing where an image is formed an a recording medium on the basis of image information and is provided with a drive motor portion for driving predetermined mechanisms employed in the image formation processing and a control se
7370577 Stencil printing machine using suction of ink recovery unit to fit stencil sheet to drum May 13, 2008
A stencil printing machine includes a rotatable drum having an outer circumferential wall formed by an ink impermeable member, a stencil clamping part for clamping a leading end of a stencil sheet, an ink supply unit having an ink supply opening for supplying a surface of the outer c
7370576 Stencil printing method for printing water-based ink May 13, 2008
A stencil printing method employs a stencil printing machine comprising: a drum which is rotatable and has a outer peripheral wall formed by an ink impermeable member and in which a stencil sheet is mounted on a surface of the outer peripheral wall; an ink supply device which has an ink
7363855 Process progress display device April 29, 2008
A process progress display device includes a stencil making block which displays a progress status of a stencil making process, a printing block which displays a progress status of a printing process, a stencil making stop bar which displays whether or not an entire process is to be stop
7344213 Method and system for calculating ink residue and ink container March 18, 2008
The Abstract as it appears in the enclosed English language translation is the more accurate and faithful translation of the original Abstract as it was filed in the PCT International application, and it is therefore requested that the Abstract be changed to this Abstract that more a
7334857 Image processing apparatus, image processing method, and image processing program product February 26, 2008
An image processing apparatus includes: a color paper/color ink register registering information on m kinds of color papers and information on n kinds of color inks, both which are usable for multicolor-printing a multicolor original image, in a color paper/color ink list; a color co
7333228 Print control system and computer program stored in a computer readable medium February 19, 2008
One of printers linked with each other by way of a network is selected according to a printing condition for a given printing job. System information on whether the selected printer makes print in a plate printing system or in a non-plate printing system is obtained. The given printi
7295334 Image processing apparatus having configurable processors November 13, 2007
An image processing apparatus includes at least two signal processor modules interconnected each other in series. Each of the signal processor modules has an input port through which data is input, a memory which stores data, a signal processor portion which carries out processing on
7287844 Ink container and ink container loading structure October 30, 2007
An ink container filling structure comprising an ink container removably mountable in a recording device, and an ink container filling section having a fit section in which the ink container is filled and which fits in the delivery port of the ink container, wherein when the ink containe
7287466 Stencil printing machine, ink recovering method, image unevenness preventing method, and ink ada October 30, 2007
A stencil printing machine has a rotatable printing drum including an outer peripheral wall of ink impermeable material. A stencil paper is mounted on the surface of the outer peripheral wall. An ink supplying mechanism includes an ink supplying unit in the outer peripheral wall of t
7287465 Stencil printing machine and control method thereof October 30, 2007
A stencil printing machine is provided with a printing drum and a second printing drum. The stencil printing machine makes first and second stencil having first and second images perforated, winds the first and second stencil sheets around the first and second printing drums respecti
7280248 Printer driver for setting stencil printing machine printing condition items and the like October 9, 2007
In the disclosed invention, when watermark print is set during printing, the printer driver makes a secret operation setting for holding the secret of print data accordingly, and transmits this print data to the stencil printing machine. Therefore, even if the printing of the stencil
7222935 Apparatus for ink-jet recording, and method for controlling ink-jet recording apparatus May 29, 2007
An apparatus for ink-jet recording includes: (a) ink tanks installed removably in the apparatus, and configured to store ink; (b) a reservoir tank configured to temporarily store waste ink generated by a printing head for jetting ink supplied from the ink tanks onto the printing paper;
7194952 Stencil printing machine March 27, 2007
A stencil printing machine includes a rotatable printing drum including an outer peripheral wall of ink impermeable material. A stencil paper is mounted around the surface of the outer peripheral wall. An ink supplying mechanism includes an ink supplying unit in the maximum printing area
7171895 Stencil material roll February 6, 2007
A stencil material roll includes stencil material in a continuous length rolled around a core tube and a memory IC which stores predetermined information. The memory IC is mounted on a wall portion which forms a part of the core tube or on a wall portion fixed to the core tube, and an
7168797 Ink container January 30, 2007
An ink container includes an ink container body and a memory attached to the ink container body for storing predetermined information. The memory is bonded to a part of the surface of the ink container body at its surface opposed to the surface of the ink container body over an area not
7158261 Method of and apparatus for distinguishing type of pixel January 2, 2007
The types of pixels of an image made up of a plurality of pixels arranged in a first direction and a second direction substantially perpendicular to the first direction are distinguished. The image is divided into a plurality of blocks, the number of pixels which are determined to be an
7153352 Ink for inkjet recording December 26, 2006
An ink for inkjet recording containing a vehicle, coloring agents dispersed therein, and a dispersing agent for the coloring agents as required, is provided. The vehicle contains at least a first solvent component and a second solvent component. The first solvent component has the lo
7117786 Stencil printing machine October 10, 2006
A stencil printing machine has a rotatable printing drum including an outer peripheral wall of ink impermeable material. A stencil paper is mounted on the surface of the outer peripheral wall. An ink supplying mechanism includes an ink supplying unit in the outer peripheral wall of t
7095889 Method of and apparatus for image processing August 22, 2006
A monochromatic image signal is made from a color image signal. Values of brightness of pixels in a color border region of a type where two color regions which are small in brightness difference and large in chromaticity difference are positioned side by side are changed to new value
7095177 EL light emitting unit, power feeding unit and EL light emitting device August 22, 2006
EL light emitting device includes a cylindrical EL light emitting unit and a columnar power feeding unit. EL light emitting unit is composed such that a cylindrical receiver coil is arranged and connected along an inner circumferential face of the cylindrical EL light emitting element an
7085437 Document modification apparatus and image processing apparatus August 1, 2006
Automatic region extracting means (2) extracts rectangle regions having attributes of "character", "photograph", "table", "ruled line", "frame" from input image data through Image input means (1) and stores the information of the extracted rectangle regions into Modification informat
7085005 Method of and apparatus for distinguishing type of pixel August 1, 2006
Halftone pixels are distinguished from non-halftone pixels in pixels making up an image according to a predetermined algorithm based on a result of edge detection for determining whether the pixels are edge pixels. The pixels which have been determined to be non-halftone pixels accor
7080040 Printing machine and printing system July 18, 2006
A printing machine (1) and a printing system (A) are disclosed as having a ROM (5) which stores, in addition to a program for realizing a specific function available for service, all programs for realizing specific functions rendered non-available for service, with service permit inf
7069850 Stencil printing machine July 4, 2006
A stencil printing machine, which includes: a drum which is freely rotatable and has an outer peripheral wall formed of an ink impermeable member, in which a stencil sheet is mounted on a surface of the outer peripheral wall; an ink supplying device for supplying, to the surface of t
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