Patents Assigned to Riso Kagaku Corporation
  • MEANDERING CONTROL DEVICE FOR WEB
    Publication number: 20190299677
    Abstract: A meandering control device includes: a detector configured to detect a position of an edge of a web being conveyed in a width direction of the web; a corrector configured to correct a position of the web being conveyed in the width direction; and a controller including a digital filter configured to perform filtering on a position signal indicating the position of the edge detected by the detector to attenuate a noise component. The controller is configured to drive the corrector to correct the position of the web in the width direction based on the position signal after the filtering.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 3, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Hideaki INOUE
  • INK JET PRINTING APPARATUS
    Publication number: 20190299660
    Abstract: An inkjet printing apparatus that performs printing by ejecting ink from an ink jet head onto a print medium includes a drying unit for drying a liquid which is contained in the print medium, a table on which the print medium is placed; and a gas flow generating unit for generating a gas flow in a space which is formed between the table and a surface of the print medium toward the side of the table.
    Type: Application
    Filed: March 20, 2019
    Publication date: October 3, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Katsuhiko MATSUNAGA
  • Image formation system including encoded image generation device and image formation device
    Patent number: 10432803
    Abstract: An image formation system includes: an encoded image generation device including a first processor that generates print data from manuscript data, sets security information for controlling a print mode of the print data, and generates an encoded image from the print data and the security information; and an image formation device including a second processor that inputs the encoded image, decodes the print data and the security data from the input encoded image, determines whether an output of the decoded print data is available in accordance with the decoded security information, and outputs the decoded print data when it is determined that the output of the print data is available.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: October 1, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Junichi Hakamada
  • Display control device for left-to-right written language and right-to-left written language
    Patent number: 10424271
    Abstract: A controller determines whether a language of an object in display data including the object and a coordinate of a rendering reference point of the object is a right-to-left writing language, and upon determining that the language of the object is the right-to-left writing language, determines an upper-right corner of a display screen of a display panel as a reference point, determines a position of the rendering reference point of the object on the display screen based on the determined reference point and the coordinate of the rendering reference point of the object included in the display data, and drives the display panel to display the object on the display screen based on the determined position of the rendering reference point on the display screen.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: September 24, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Tutomu Endou
  • MANAGEMENT SERVER
    Publication number: 20190287038
    Abstract: A management server includes a printing-device management unit that receives consumables information indicating respective usage statuses of a plurality of consumables being used by a printing device from one or more printing devices, an order-timing estimating unit that calculates an estimated order timing at which each of the consumables is to be ordered based on a temporal variation in the usage statuses of each of the consumables, and a consumables-order planning unit that, when there are a plurality of estimated order timings within a predetermined period for one printing device, or when there are a plurality of estimated order timings within a predetermined period for a plurality of printing devices included in a certain neighboring area, changes and outputs a price of consumables associated with the estimated order timings corresponding to delivery statuses of the consumables.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Yukihiro OI
  • Volatile semiconductor memory management device
    Patent number: 10410711
    Abstract: A management device for a volatile semiconductor memory includes: a request generator configured to output a refresh request requesting a refresh operation of a target cell in the volatile semiconductor memory; and a refresh operator configured to execute the refresh operation of the target cell requested in the refresh request outputted by the request generator. The request generator repeatedly outputs the refresh request for a same target cell in the volatile semiconductor memory intermittently at unequal intervals with each two successive intervals being different from each other.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: September 10, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Yuji Yoshino
  • Ink cartridge, method for tag discrimination in same, method for reproducing ink cartridge
    Patent number: 10399350
    Abstract: 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 the circumferential edge of the engagement hole in the same direction as a direction of the fit-in rib; and a bonding region for bonding a communication tag that performs near field radio communication with a printer. A tag-removing hole which is formed in the bonding region and which is to be removed from a bonding surface side of the communication tag with a bar-like member inserted is formed in a formation region as the bonding region located in a first quadrant and a fourth quadrant in an orthogonal coordinate system.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: September 3, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Shotaro Kon, Kenichi Ozeki, Toshio Hamada
  • PRINTING APPARATUS FOR WEB
    Publication number: 20190263162
    Abstract: A controller: generates a first corrected pulse signal by correcting a received first pulse signal or generate a second corrected pulse signal by correcting a received second pulse signal, based on a difference value between a first rotation cycle of a first roller and a second rotation cycle of a second roller such that a difference between a first pulse cycle of the received first pulse signal and a second pulse cycle of the received second pulse signal is reduced; upon generating the first corrected pulse signal, controls first print timings in respective first print mechanisms of a first printer based on the generated first corrected pulse signal; and upon generating the second corrected pulse signal, controls second print timings in respective second print mechanisms of a second printer based on the generated second corrected pulse signal.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 29, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Mamoru WAKABAYASHI
  • PRINTING APPARATUS FOR WEB
    Publication number: 20190263153
    Abstract: A controller controls first print timings in respective first print mechanisms of a first printer based on a first pulse signal outputted from a first encoder and controls second print timings in respective second print mechanisms of a second printer based on a second pulse signal outputted from a second encoder.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 29, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Mamoru WAKABAYASHI, Takashi EBISAWA
  • Image forming apparatus and image forming system with information presentation for resuming printing after occurrence of error
    Patent number: 10384823
    Abstract: A letter number specifying unit specifies a letter number of a sealed letter to be informed to a user, based on a content of a transfer error detected by an error detector. A searching unit searches a letter-number-specific print content table, in which letter number identification information for identifying each letter number, and print content information indicating a content of an image to be printed on a sheet which forms the sealed letter of each letter number are associated with each other, and finds the print content information associated with the letter number identification information of a letter number identification code read by a code reader from the sheet which forms the sealed letter of the letter number specified by the letter number specifying unit. An information displaying unit displays the print content information found by the searching unit on a display.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: August 20, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Masatoshi Fujimoto
  • PRINTING APPARATUS FOR WEB PRINT MEDIUM
    Publication number: 20190232688
    Abstract: A printing apparatus includes: a conveyor configured to convey a web print medium with holes arranged at a predetermined pitch in a conveyance direction; a printer configured to perform printing on the web print medium conveyed by the conveyor; a detector configured to detect the holes; and a controller. The controller is configured to drive the printer to start printing on the web print medium based on a timing at which a count value of the holes detected by the detector from start of conveyance of the web print medium by the conveyor reaches a setting value of a number of the holes located from the detector to a print start reference position on the web print medium at the start of conveyance of the web print medium by the conveyor.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Hideaki OGAWA
  • WEB CONVEYING DEVICE
    Publication number: 20190232635
    Abstract: A controller, upon a web roll being set on a web roll support shaft: drives a brake to apply a braking force of a first value to the web roll support shaft, the first value being a value at which the web roll does not rotate when a predetermined tension is applied to a web, and drives a conveyance motor to generate a drive force for the predetermined tension; drives the brake with the drive force generated to gradually reduce the braking force from the first value while determining whether rotation of a conveyance roller starts; and upon determining that the rotation of the conveyance roller starts, determines a second value of the braking force as an initial value of the braking force in conveyance of the web for printing, the second value being a value at which the rotation of the conveyance roller starts.
    Type: Application
    Filed: January 24, 2019
    Publication date: August 1, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventor: Kazuyuki AOKI
  • INK JET PRINTING APPARATUS
    Publication number: 20190232662
    Abstract: The ink jet printing apparatus includes: an ink jet head having a nozzle row in which a plurality of nozzles for ejecting ink are arranged and a nozzle guard with an opening at a portion corresponding to the nozzle row, provided at a position via a gap with respect to an ink ejection surface of the nozzle row; a sheet shaped absorbing member having a size that covers a range of the opening of the nozzle guard; and a capping unit that presses the absorbing member onto the opening of the nozzle guard.
    Type: Application
    Filed: January 25, 2019
    Publication date: August 1, 2019
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Hirotaka YAMAMOTO, Ami NAKATA
  • Inkjet printing machine
    Patent number: 10363754
    Abstract: A controlling unit causes a valve and a pump to perform the following operations: (i) the controlling unit closes the valve and drives the pump in initial filling of an inkjet head with ink; (ii) the controlling unit stops the pump and opens the valve on or after a time point when a tip of ink within an ink route reaches a prescribed position, which is higher than that of the ink cartridge and on an inkjet head side viewed from a joining joint part; (iii) the controlling unit closes the valve after the ink within the ink route flows backward to move air in a direct route into the ink cartridge; and (iv) the controlling unit drives the pump to fill the inkjet head with ink.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: July 30, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Katsuhiko Matsunaga
  • Aqueous inkjet ink and method for manufacturing printed article
    Patent number: 10351721
    Abstract: An aqueous inkjet ink is disclosed which contains water, a polyoxyethylene polyglyceryl ether and a colorant, wherein a ratio (B/A) of the total number (B) of hydroxyl groups within a molecule of the polyoxyethylene polyglyceryl ether relative to the weight average molecular weight (A) of the polyoxyethylene polyglyceryl ether is within a range from 0.002 to 0.012.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 16, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Akiko Hayashi
  • Printing apparatus with cooling fan
    Patent number: 10343432
    Abstract: A printing apparatus includes: a case having a door; a duct installed on an inner side of the door in the case and communicating with an outside of the case; a cover installed in the case and having an opening, the opening allowing an inside of the case and the outside of the case to communicate with each other via the duct of the door being closed; a fan configured to perform at least one of drawing of air into the case or exhausting of air from the case via the opening and the duct with the door being closed; and a shutter configured to open the opening during drive of the fan and close the opening while the door is open.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: July 9, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Naoki Sasaki
  • Image reading device
    Patent number: 10341521
    Abstract: An image reading device includes: a platen on which a document is placed; a platen cover openable and closable with respect to the platen; a cover-open sensor which detects a fact that the open/close angle of the platen cover has passed a predetermined angle from a close state; a CCD line sensor including charge coupled devices (CCD) arranged for recording a variation in distribution for a fixed period of time of incident light when detecting passing of the platen cover; a variation amount calculator which calculates a variation amount of incident light at each distribution point on the basis of a variation in distribution recorded by the CCD line sensor; and a variation amount determination unit which determines whether or not a variation amount calculated by the variation amount calculator exceeds a predetermined threshold.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: July 2, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Masahiko Kusuhata
  • Inkjet printer with ink receptor for receiving ink as waste liquid
    Patent number: 10328704
    Abstract: An inkjet printer includes: at least one ink receptor having a tray shape with a bottom plate and an opening facing upward and being horizontally movable; and a suction unit. The at least one ink receptor is configured to receive ink ejected from at least one inkjet head as waste liquid. The suction unit includes at least one suction nozzle arranged above the bottom plate within a movable range of the at least one ink receptor and is configured to suction the ink in the at least one ink receptor through the opening with the at least one suction nozzle.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 25, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Yasuhiro Katada, Akira Nishiyama, Shunta Nakamura, Naoto Tsujino
  • Inkjet printing machine
    Patent number: 10328712
    Abstract: A controlling unit performs the following operations: (i) the controlling unit drives a pump with a direct valve closed and an air compression valve opened in initial filling of an inkjet head with ink; (ii) the controlling unit closes the air compression valve when a tip of ink introduced in an ink route reaches a prescribed position between a joining joint part and the air compression valve; (iii) the controlling unit stops the pump and opens the direct valve after closing the air compression valve; (iv) the controlling unit closes the direct valve and opens the air compression valve after the ink, which flows backward due to restoration of compressed air between the air compression valve and the ink, moves air in a direct route into the ink cartridge; and (v) the controlling unit drives the pump to fill the inkjet head with ink.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: June 25, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Mamoru Saito
  • Inkjet printer which stiffens sheet
    Patent number: 10308052
    Abstract: An inkjet printer includes: at least one inkjet head configured to eject ink to a sheet and print an image; at least one stiffening conveyor configured to convey the sheet toward the at least one inkjet head in a conveyance direction while stiffening the sheet by deforming the sheet into a wave shape in a width direction orthogonal to the conveyance direction; and at least one platen arranged to face the at least one inkjet head and having a protrusion, the protrusion provided on a surface of the at least one platen facing the at least one inkjet head and configured to support a convex portion in the wave shape of the deformed sheet, the at least one platen configured to support the sheet while keeping the sheet deformed in the wave shape.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: June 4, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Yoshihisa Morita