Internal Inker Patents (Class 101/119)
  • Patent number: 10040276
    Abstract: A rotary screen printing press is provided with a screen-cylinder throw-on/off motor encoder (231) that detects the position of a screen cylinder (201), a squeegee throw-on/off motor encoder (232) that detects the position of a squeegee (221), and a control unit (300) that controls screen cylinder throw-on/off motors (209) and squeegee throw-on/off motors (224) based on the position of the screen cylinder (201) detected by the screen-cylinder throw-on/off motor encoder (231) and the position of the squeegee (221) detected by the squeegee throw-on/off motor encoder (232) so that the squeegee (221) may not contact a screen plate (201A) except when the screen plate (201A) is in contact with an impression cylinder (100).
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: August 7, 2018
    Assignee: KOMORI CORPORATION
    Inventor: Yoshihisa Sakata
  • Patent number: 10016779
    Abstract: A method for delivering a High Internal Phase Emulsion to a substrate. The method includes providing a rotating roll, The rotating roll has a central longitudinal axis, wherein the rotating roll rotates about the central longitudinal axis, an exterior surface defining an interior region and substantially surrounding the central longitudinal axis, and a vascular network configured for transporting the one or more fluids in a predetermined path from the interior region to the exterior surface of the rotating roll. The method further includes providing a High Internal Phase Emulsion to the rotating roll vascular network. The method further includes contacting a substrate with the rotating roll and contacting the substrate with the High Internal Phase Emulsion.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 10, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Thomas Timothy Byrne, Michael Scott Prodoehl, Gustav Andre Mellin, Wade Monroe Hubbard, Jr., Paul Aaron Grosse, Gregory Alan Lengerich
  • Patent number: 9993836
    Abstract: A system for dosing one or more fluids on a substrate, the system comprising a rotating roll. The rotating roll has a central longitudinal axis, wherein the rotating roll rotates about the central longitudinal axis; an exterior surface defining an interior region and substantially surrounding the central longitudinal axis; and a vascular network configured for transporting the one or more fluids in a predetermined path from the interior region to the exterior surface of the rotating roll.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: June 12, 2018
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Thomas Timothy Byrne, Michael Scott Prodoehl, Gustav Andre Mellin, Wade Monroe Hubbard, Jr.
  • Patent number: 9796174
    Abstract: A system for depositing a fluid on a substrate is disclosed. The system can include a sleeve having a sleeve exit and an inner region and a rotating roll disposed within the inner region. A vascular network can be disposed within the rotating roll, the vascular network being configured for transporting the fluid in predetermined paths from the interior region to the exterior surface through a substantially radial path, the substantially radial path ending at an exit point of a fluid exit, wherein the exit point is associated with a sleeve exit.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: October 24, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Timothy Byrne, Michael Scott Prodoehl, Kevin Benson McNeil, Gustav Andre Mellin, Haibin Chen, Matthew Alan Russell
  • Patent number: 9694379
    Abstract: A rotating roll for depositing a fluid on a substrate is disclosed. The rotating roll can have a central longitudinal axis, wherein the rotating roll rotates about the central longitudinal axis. The rotating roll can have an exterior surface defining an interior region and a vascular network configured for transporting the fluid in predetermined paths from an interior region to the exterior surface of the rotating roll. The vascular network can have a main artery, a first capillary and a plurality of fluid exits on the exterior surface. The main artery can have an inlet and is substantially parallel to the central longitudinal axis of the rotating roll. Fluid enters the vascular network at the inlet and exits through substantially radial fluid paths to form a first tree.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: July 4, 2017
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Timothy Byrne, Michael Scott Prodoehl, Kevin Benson McNeil, Gustav Andre Mellin, Haibin Chen, Matthew Alan Russell
  • Patent number: 9433964
    Abstract: A rod-bed assembly has a holder (30) and an insert (20) removably and insertably supported in a groove (31) of the holder (30), the rod-bed assembly being for a rod (10) rotatably supported in a recess (21) on a front side of the insert (20). Longitudinal bending of the holder (30) in a cross-direction is under 0.5%, advantageously under 0.35%, of the longitudinal distance between two profiling loading points of the holder (30).
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: September 6, 2016
    Assignee: Valmet Technologies, Inc.
    Inventors: Ari-Pekka Kautto, Timo Lintula
  • Patent number: 8985013
    Abstract: A gravure printing system is disclosed. The gravure printing system of the present disclosure is provided with a central roll having a plurality of discrete cells disposed upon an outer surface thereof. A first of the plurality of discrete cells receives a first fluid from a first position internal to the central roll and a second of the plurality of discrete cells receives a second fluid from a second position internal to the central roll, the first fluid being different from the second fluid. The first and second cells are disposed adjacent each other upon the outer surface.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: March 24, 2015
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Thomas Timothy Byrne, André Mellin
  • Patent number: 8943959
    Abstract: A process for printing a web substrate is disclosed. The process comprises the steps of: a) providing a contact printing system for printing X colors upon a web substrate wherein X is a whole number and X>1; b) providing the contact printing system with X?Y printing components where Y is a whole number and 0<y<X; and, c) printing the X colors upon the web substrate.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 3, 2015
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Thomas Timothy Byrne, André Mellin
  • Patent number: 8943957
    Abstract: A contact printing system is disclosed. The contact printing system can print X colors upon a web substrate in the machine direction. The contact printing system has X-Y printing components where X and Y are whole numbers, 0<Y<X, and X>1.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 3, 2015
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Thomas Timothy Byrne, André Mellin
  • Patent number: 8943960
    Abstract: A process for printing a web substrate in contacting engagement with an external surface of a central roll of a contact printing system is disclosed. The process comprises the steps of: a) providing the central roll with a plurality of cells disposed upon an outer surface thereof; b) providing a first fluid satisfying a first system of equations to a first of the cells from a position internal to the central roll; c) providing a second fluid satisfying a second system of equations to a second of the cells from a position internal to the central roll; d) contactingly engaging the web substrate with the external surface of said central roll and, e) fluidically displacing the first and second fluids from the first and second cells onto the web substrate.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 3, 2015
    Assignee: The Procter & Gamble Company
    Inventors: Michael Scott Prodoehl, Kevin Benson McNeil, Thomas Timothy Byrne
  • Patent number: 8943958
    Abstract: A contact printing system is disclosed. The contact printing system has a central roll having a plurality of discrete cells disposed upon an outer surface thereof. Adjacent cells of the plurality of discrete cells each have a fluid disposed therein from a respective location internal to the central roll. Each fluid is disposable from each of the cells to a web substrate and provides a resultant color upon the web substrate having a 2-D gamut boundary represented by a defined system of CIELab equations.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: February 3, 2015
    Assignee: The Procter & Gamble Company
    Inventors: Michael Scott Prodoehl, Kevin Benson McNeil, Thomas Timothy Byrne
  • Patent number: 8920663
    Abstract: A method for producing a security element having microdepressions for security papers, with the microdepressions being colored with a certain color, involves the steps of (a) coating an upper side of a carrier with an embossable layer; (b1) forming microdepressions in the embossable layer to configure an embossed layer; (c) applying the certain color on the upper side, so that the color remains in the microdepressions; (b2) applying a structured protective layer on the coated upper side, wherein the structured protective layer does not cover the microdepressions that are to be colored with the certain color, after step (b1) and before step (c); and removing the structured protective layer and thereby a color toning after step (c).
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: December 30, 2014
    Assignee: Giesecke & Devrient GmbH
    Inventor: Mario Keller
  • Patent number: 8839716
    Abstract: A gravure printing system is disclosed. The gravure printing system is provided with a central roll having a first plurality of discrete cells disposed upon an outer surface thereof. Each cell of the first plurality of discrete cells is capable of receiving a fluid that is a first combination of at least two primary fluids. Each of the at least two primary fluids are placed in fluid contact at a first position internal to the central roll. The first combination of at least two primary fluids is fluidically displaceable into a first cell of the first plurality of discrete cells from a second position internal to the central roll.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: September 23, 2014
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Timothy Byrne, Michael Scott Prodoehl
  • Patent number: 8839717
    Abstract: A process for printing a web substrate in contacting engagement with an external surface of a central roll of a contact printing system is disclosed. The process comprises the steps of: a) providing the central roll with a plurality of discrete cells disposed upon an outer surface thereof; b) contactingly engaging at least two primary fluids internal to the central roll to form a first secondary fluid; c) fluidically displacing the first secondary fluid into a first portion of the plurality of discrete cells from a position internal to the central roll; and, d) displacing the first secondary fluid from each of the first portion of discrete cells onto the web substrate.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: September 23, 2014
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Michael Scott Prodoehl, André Mellin, Thomas Timothy Byrne
  • Patent number: 8833250
    Abstract: A gravure printing system is disclosed. The gravure printing system has a central roll with a plurality of discrete cells disposed upon an outer surface thereof. A first of the plurality of discrete cells are capable of receiving at least one fluid and a second of the plurality of discrete cells are capable of receiving at least two fluids. Each of the fluids is fluidically displaced into the first and second cells from a position internal to the central roll.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: September 16, 2014
    Assignee: The Procter & Gamble Company
    Inventors: Kevin Benson McNeil, Michael Scott Prodoehl, André Mellin, Thomas Timothy Byrne
  • Patent number: 8820231
    Abstract: Disclosed is a roll-to-roll printing apparatus, which includes n support rollers arranged in an n-gonal shape (where n is an integer equal to or greater than 3), a looped pattern mask having a plurality of pattern sections passing through inner and outer surfaces thereof and disposed so as to interconnect the support rollers, a driver that rotates the pattern mask, a transfer unit having an unwinder and a rewinder of a printing target and a backup roller that is disposed between two of the support rollers adjacent to each other and outside the pattern mask and that supports the printing target transferred from the unwinder to the rewinder, a printing unit disposed inside the pattern mask and discharging ink toward the printing target supported on the backup roller, and a tension adjusting unit adjusting tension of the pattern mask.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: September 2, 2014
    Assignee: Sung An Machinery Co., Ltd.
    Inventor: Dong Kwon Choi
  • Patent number: 8714083
    Abstract: In a rotary stencil printing press including a rotary screen cylinder which supports a screen printing form and is supported rotatably, and a squeegee which is located within the rotary screen cylinder and, when printing is done, contacts an inner peripheral surface of the screen printing form to transfer ink stored within the rotary screen cylinder to a web via holes of the screen printing form and, when printing is stopped, leaves the inner peripheral surface of the screen printing form, throw-on and throw-off of the squeegee with respect to the inner peripheral surface of the screen printing form, and adjustment of the position of the throw-on are performed by motors.
    Type: Grant
    Filed: January 17, 2008
    Date of Patent: May 6, 2014
    Assignee: Komori Corporation
    Inventors: Hiromitsu Numauchi, Isao Komuro, Akehiro Kusaka
  • Patent number: 8689686
    Abstract: A screen printing device is disclosed. The screen printing device includes a screen printer workstation having a work path. The work path has an input end, an output end, and a conveyor for transporting a workpiece between the input end and the output end. A stencil assembly is adapted to engage the workpiece as the workpiece is transported between the input end and the output end. The stencil assembly includes a stencil having an endless loop. A method of applying a substance to a workpiece using an endless loop stencil is also disclosed.
    Type: Grant
    Filed: July 31, 2011
    Date of Patent: April 8, 2014
    Inventor: Charles Moncavage
  • Patent number: 8616126
    Abstract: A contact printing system is disclosed. The contact printing system is provided with a central roll having a plurality of discrete cells disposed upon an outer surface thereof. Each of the plurality of discrete cells is in fluidic communication with a respective fluid delivery channel. Each of the fluid delivery channels are formed in situ with the formation of the central roll and the plurality of cells.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: December 31, 2013
    Assignee: The Procter & Gamble Company
    Inventors: Thomas Timothy Byrne, André Mellin
  • Patent number: 8578849
    Abstract: A screen printing unit equipped with a rotary screen apparatus comprises a cylindrical screen rotatably supported so as to be brought into contact with a rotatable impression cylinder. Multiple small holes are formed in the circumferential surface of the screen, and are filled up with a coating material. Some of the holes corresponding to a pattern not being filled with the coating material, and a special ink stored inside the screen can be supplied to a sheet held on the outer circumferential surface of the impression cylinder so as to form a shape corresponding to the pattern. The small holes are formed only in an area of the screen in the circumferential direction thereof extending from a position corresponding to the downstream-side end of the sheet in the sheet-conveying direction to a position corresponding to the upstream-side end of the sheet in the sheet-conveying direction.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: November 12, 2013
    Assignee: Komori Corporation
    Inventors: Akehiro Kusaka, Susumu Takezawa
  • Patent number: 8363255
    Abstract: A print control method and device, wherein the method includes: monitoring a print system port, storing a print task at a preset memory address in the form of job file when the print task exists at the print system port; querying the memory address on schedule, determining the target job file when there is a job file storing at the memory address; querying the printer state, if the printer is idle, sending the target job file; when the printer is in a state of failure, feeding a failure state prompting information back. The solution queries the printer work state before the job file is sent, feeds the prompting information back when the printer occurs failure, detects the print process state of job files, and performs a processing for failure when a print fails. Through the solution, users can know the states of job files in time and missing or omitting of a job file is avoided.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: January 29, 2013
    Assignee: Shandong New Beiyang Information Technology Co., Ltd.
    Inventors: Wei Liu, Yipeng Qu, Jiabo Xu
  • Patent number: 8270007
    Abstract: A method implemented in a print job management apparatus for processing print jobs in a multiple-printer print shop environment is described. Each print job specifies job ticket parameters representing printing requirements. Each received job is processed by comparing the printing requirements of the job with capabilities of the printers. If a printer cannot satisfy all printing requirements of the job, it is eliminated as a candidate printer. Then, from all printers that can satisfy all printing requirements of the job, one printer is selected based on a pre-defined priority preference and the job is submitted to the selected printer. The printer priority preference is created by the operator based on cost and other factors. The operator can also select an alternative execution mode where, among all printers that can satisfy all requirements of the job, the one with minimum wait time is selected.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: September 18, 2012
    Assignee: Konica Minolta Laboratory U.S.A., Inc.
    Inventors: Rakesh Pandit, Geoff W. Harmon
  • Patent number: 8042463
    Abstract: The invention discloses a varnish coating device that utilizes an ordinary conventional digital stencil printing apparatus, such that anyone can easily apply a uniform film of a viscous coating onto a predetermined area of, for instance, covers and surfaces of printed products. The invention functions as a varnish coating device, in place of a drum unit, when a varnish coating unit is mounted on a mounting section of a printing apparatus main body. The varnish coating unit has: a coating roller that coats the surface of printed paper with a transparent varnish liquid and feeds out the paper; a supply device having a doctor roller that forms a liquid pool on the coating roller and that supplies varnish liquid to form a coating in a predetermined thickness over a predetermined area of the surface of the coating roller; a cradle that detachably supports a varnish container; and a pumping device.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: October 25, 2011
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventor: Mitsuo Sato
  • Patent number: 8011298
    Abstract: In an ink supply method and system and an ink container where the ink is automatically supplied in the stencil printing, to permit suitable detection of empty of the ink container even if the kind of ink which has not been set is employed. A parameter representing an inkless time corresponding to the kind of ink (viscosity of ink) is stored in the storage means (8) provided on the ink container (10), the parameter is read out from the storage means (8) and the inkless time is set on the basis of the parameter, whereby it is recognized that the ink container is exhausted when the time for which the ink in the ink fountain (2) is not detected by an ink amount detecting means (40) becomes longer than the inkless time.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: September 6, 2011
    Assignee: Riso Kagaku Corporation
    Inventors: Manabu Iwamoto, Kenji Oshima
  • Patent number: 7832332
    Abstract: A printing device comprising a stencil printing device which is excellent in operativity, in which a print drum with UV ink and non-UV ink can be used in a single stencil printing device. The printing device has a stencil printing control device and UV irradiation control device in which a drum unit ink type identifying sensor, which detects whether the print drum attached to the stencil printing device main body is a print drum unit for UV ink or a drum unit for non-UV ink, is used to operate at least a UV lamp, of the UV lamp and a UV auxiliary lamp, and to irradiate UV light when attachment of the drum unit for UV ink is detected, or to stop the operation of the UV lamp and UV auxiliary lamp when attachment of the print drum unit for non-UV ink is detected.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: November 16, 2010
    Assignee: Tohoku Ricoh Co., Ltd
    Inventor: Mitsuo Sato
  • Patent number: 7819056
    Abstract: In a stencil printing method where a plurality of kinds of ink containers filled with ink of different colors are installed in a system body of a stencil printer and the ink in the ink container is supplied to a printing drum to carry out stencil printing, to easily set color information of the printing drum for determining whether the color information of the ink container conforms to the printing drum without necessity of operator's input. The color information stored in the storage means (9) of the ink container (10) installed in the system body (2) of the stencil printer is read out to a color information setting means (65), and at the same time, the color information setting means (65) confirms whether the color information has been already stored in the storage means (8) of the printing drum (31).
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 26, 2010
    Assignee: Riso Kagaku Corporation
    Inventor: Manabu Iwamoto
  • Patent number: 7654199
    Abstract: A printing device capable of printing with either UV curable ink or non-UV curable ink and having a function of controlling so that printing under the printing conditions of the printing device in accordance with the selected ink to be used can be performed with simple operation. The printing device has a controller for performing control of executing warning report and/or disabling printing operation, when the type of the ink identified by the ink type detection device is not consistent with the type of the master identified by the master type detection device.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: February 2, 2010
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventor: Koji Nagai
  • Patent number: 7441498
    Abstract: 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 expendable installed in the mounting portion is read out, and operation of a predetermined object is controlled on the basis of a control information according to the distinguishment information when the distinguishment information read out represents that the expendable is compatible.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: October 28, 2008
    Assignee: Riso Kagaku Corporation
    Inventors: Manabu Iwamoto, Kenji Oshima
  • Patent number: 7430961
    Abstract: 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 storage means of an ink container, while the stored information representing the volatility and/or viscosity of ink is read out, and at the same time, the ceasing time from interruption of printing to resumption of the same is measured, and the printing pressure is controlled according to the ceasing time and the information representing the volatility and/or viscosity of ink.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 7, 2008
    Assignee: Riso Kagaku Corporation
    Inventor: Manabu Iwamoto
  • Publication number: 20080178755
    Abstract: In a rotary stencil printing press including a rotary screen cylinder which supports a screen printing forme and is supported rotatably, and a squeegee which is located within the rotary screen cylinder and, when printing is done, contacts an inner peripheral surface of the screen printing forme to transfer ink stored within the rotary screen cylinder to a web via holes of the screen printing forme and, when printing is stopped, leaves the inner peripheral surface of the screen printing forme, throw-on and throw-off of the squeegee with respect to the inner peripheral surface of the screen printing forme, and adjustment of the position of the throw-on are performed by motors.
    Type: Application
    Filed: January 17, 2008
    Publication date: July 31, 2008
    Applicant: KOMORI CORPORATION
    Inventors: Hiromitsu Numauchi, Isao Komuro, Akehiro Kusaka
  • Patent number: 7370577
    Abstract: 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 circumferential wall with ink, a press roll for pressing a printing paper against the outer circumferential wall of the drum, an ink recovery unit having an ink recovery opening formed on a downstream side of a maximum printing area in a printing direction to collect ink flowing into the ink recovery opening by suction, the maximum printing area being defined on the outer circumferential wall, and a press unit for pressing the stencil sheet onto the outer circumferential wall of the drum and a control unit for controlling respective operations of the main motor, the ink recovery unit and the press unit.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: May 13, 2008
    Assignee: Riso Kagaku Corporation
    Inventors: Taku Naitou, Hiroshi Usuda, legal representative, Keita Usuda
  • Patent number: 7370576
    Abstract: 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 supply unit provided on the outer peripheral wall of the drum and supplies ink on the surface of the outer peripheral wall from the ink supply unit; and a pressure roller which presses a fed print medium onto the outer peripheral wall; the method comprising: a step of mounting a stencil sheet on the drum; a step of plate-making the stencil sheet; and a step of transferring a water-based ink to a print medium by making the water-based ink pass through perforations of the stencil sheet.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: May 13, 2008
    Assignee: Riso Kagaku Corporation
    Inventors: Akira Nakamura, Taku Naitou, Takuya Shibahara, Yoshihiro Hayashi
  • Patent number: 7287466
    Abstract: 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 the printing drum. The ink supplying mechanism supplies ink from the ink supplying unit to the surface of the outer peripheral wall. A pressure roller presses a fed print sheet against the outer peripheral wall. An ink recovering mechanism recovers ink which has flown out of a maximum printing area of the outer peripheral wall of the printing drum. A pressing mechanism presses the stencil paper against the outer peripheral wall of the printing drum.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 30, 2007
    Assignee: Riso Kagaku Corporation
    Inventors: Hirohide Hashimoto, Taku Naitou
  • Patent number: 7194952
    Abstract: 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 of the outer peripheral wall of the printing drum and causes ink to be supplied from the ink supplying unit to the surface of the outer peripheral wall. A pressure roller presses a fed print sheet against the outer peripheral wall.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: March 27, 2007
    Assignee: Riso Kagaku Corporation
    Inventors: Taku Naitou, Akira Nakamura
  • Patent number: 7117786
    Abstract: 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 the printing drum and supplies ink to the surface of the outer peripheral wall. A pressure roller presses a fed print sheet against the outer peripheral wall. When an initial printing operation is performed after a stencil paper is mounted on the printing drum, the ink supplying mechanism is caused to supply the surface of the outer peripheral wall, in advance, with an amount of ink which is larger than an amount of ink which is supplied for second and proceeding printing operations.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 10, 2006
    Assignee: Riso Kagaku Corporation
    Inventors: Akira Nakamura, Taku Naitou, Hirokazu Kamano
  • Patent number: 7069850
    Abstract: 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 the outer peripheral wall, an ink guided from an ink tank; an ink recovery device for recovering, from an ink recovery portion, an extra ink on the surface of the outer peripheral wall; and a pressure roller which presses a print medium to the outer peripheral wall. The ink tank includes a main tank portion where unused ink is stored, and a sub-tank portion where the ink recovered by the ink recovery device is stored. The ink supplying device preferentially supplies the ink in the sub-tank portion.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: July 4, 2006
    Assignee: Riso Kagaku Corporation
    Inventors: Akira Nakamura, Taku Naitou, Takuya Shibahara
  • Patent number: 7040222
    Abstract: A stencil printing machine 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 supply device which has an ink supply port on the outer peripheral wall of the drum, and supplies ink to the surface of the outer peripheral wall from the ink supply port; a pressure roller which presses a print medium fed thereto to the outer peripheral wall; and a first cap device capable of closing the ink supply port. Moreover, the stencil printing machine further includes: an ink return device which has an ink return port on the outer peripheral wall, and returns the ink which flows into the ink return port; and a second cap device capable of closing the ink return port.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: May 9, 2006
    Assignee: Riso Kagaku Corporation
    Inventors: Akira Nakamura, Taku Naitou, Takuya Shibahara, Yoshihiro Hayashi
  • Patent number: 6871588
    Abstract: An ink bottle mounting apparatus comprising a bottle mounting apparatus body 11 having an ink bottle 1 and a bottle insertion chamber 12 into which the ink bottle 1 is inserted, wherein the ink bottle mounting apparatus further comprises a bottle lock member 15 which is engaged with a groove 5 formed on a side peripheral surface of the ink bottle 1 to prevent the ink bottle 1 from being pulled out when the ink bottle 1 is mounted to the bottle mounting apparatus body.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: March 29, 2005
    Assignee: Riso Kagaku Corporation
    Inventors: Kuninori Sasaki, Takahiro Wakayama
  • Patent number: 6810799
    Abstract: A printing machine with an electrophotographic device, having a photoconductor, a photoconductor drive and an illumination device. The electrophotographic unit can be provided with the substrate by a feed device. The photoconductor drive motor is adjusted by a controller and the feed device can be linearly adjusted by a feed device drive motor. In order to produce high-definition prints, especially images or lettering on plate-shaped substrates, the feed device drive motor is adjusted by a controller that is controlled by a master-slave controller via a setpoint feed. The controller for the photoconductor drive motor is also controlled by the master-slave controller via a setpoint feed and the master slave controller synchronizes the feeding speed of the feed device and the speed of movement of the photoconductor.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: November 2, 2004
    Assignee: Schott Glas
    Inventors: Bernd Schultheis, Dieter Jung, Birgit Lattermann, Hermann Lemm
  • Patent number: 6810803
    Abstract: A stencil printing ink container comprises a cylinder, an area of one end of the cylinder, which area is other than an ink discharge opening section, being closed with an end wall, the other end of the cylinder being open, and a piston, which undergoes a sliding movement in an axial direction of the cylinder and along its inner circumferential surface. The ink container is filled with ink having a viscosity of at most 7.5 Pa·s with respect to a shear rate of 100 sec−1 and at 23° C. and satisfies a specific relationship among an inside radius of the cylinder, an inside radius of the ink discharge opening section, a length of the ink discharge opening section, a weight of the ink filled in the ink container, a sliding movement starting load of the piston, and the viscosity of the ink.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: November 2, 2004
    Assignee: Riso Kagaku Corporation
    Inventors: Hirohide Hashimoto, Masakatsu Arai, Kenichi Oshio
  • Patent number: 6789472
    Abstract: A stencil printing machine includes a drum which is rotatable and has an 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 has an ink supply unit at a printing position upstream of a maximum printing area of the outer peripheral wall of the drum and supplies ink on the surface of the outer peripheral wall from the ink supply unit. A pressure roller presses a fed print medium onto the outer peripheral wall.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: September 14, 2004
    Assignee: Riso Kagaku Corporation
    Inventors: Akira Nakamura, Taku Naitou, Takuya Shibahara
  • Patent number: 6772690
    Abstract: The amount of ink in an ink fountain in a printer is detected on the basis of change of oscillation. The oscillation frequency is changed on the basis of dielectric constant information on the dielectric constant of the ink.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: August 10, 2004
    Assignee: Riso Kagaku Corporation
    Inventor: Hideaki Inoue
  • Publication number: 20040139868
    Abstract: A stencil printing ink container includes an ink container body. An ink charge port is provided in an end wall of the ink container body and an inner plug is mounted on the ink charge port. The inner plug is provided with an ink discharge port smaller in the outer diameter than the inner diameter of the ink charge port and gives an ink suction nozzle of an ink pump access to the ink discharge port.
    Type: Application
    Filed: January 12, 2004
    Publication date: July 22, 2004
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Masakatsu Arai, Kaoru Kimura
  • Publication number: 20040069164
    Abstract: A stencil printing machine includes a drum which is rotatable and has an 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 has an ink supply unit at a printing position upstream of a maximum printing area of the outer peripheral wall of the drum and supplies ink on the surface of the outer peripheral wall from the ink supply unit. A pressure roller presses a fed print medium onto the outer peripheral wall.
    Type: Application
    Filed: October 3, 2003
    Publication date: April 15, 2004
    Inventors: Akira Nakamura, Taku Naitou, Takuya Shibahara
  • Patent number: 6684770
    Abstract: An apparatus includes a rotary printing assembly operative for directly printing a layer of radiation curable material onto the cylindrical surface of individual articles. The rotary printing assembly includes a rotationally supported belt defining an interior region, the belt having a planar portion for contact with the cylindrical surface of the articles for directly printing a layer of the radiation curable material thereon. At least one squeegee is arranged within the interior region of the belt having a portion engaging the belt for contacting the planar portion of the belt with the cylindrical surface of the article. The squeegee is moveable longitudinally within the interior region of the belt during the printing operation. A radiation emitting device can be positioned adjacent the rotary printing assembly for at least partially curing the layer of radiation curable material applied to the articles.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: February 3, 2004
    Assignee: Deco Patents, Inc.
    Inventors: Melvin E. Kamen, Marvin Wells, Jerry Schuler
  • Patent number: 6604460
    Abstract: A stencil printing machine and a control method is provided wherein first and second printing drums 25 and 26 are rotatably supported in close proximity to an outer periphery of a press drum 27 at positions spaced by a given angle, wherein outer circumferential peripheral walls of the first and second printing drums 25 and 26 carry stencil clamping bases 28, respectively, and inner press rollers 33 are located inside the printing drums 25 malid 26, respectively. During printing operation, the printing drums 25 and 26 are rotated with a rotational phase angle of 180 degrees relative to the press drum and, at termination of printing operation, the printing drums 25 and 26 are stopped at respective stationary rest positions which are out of ink stain zones of respective printing drums.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: August 12, 2003
    Assignee: Riso Kagaku Corporation
    Inventor: Hiroshi Watanabe
  • Patent number: 6581515
    Abstract: A stencil printing method of the present invention intentionally transfers a smaller amount of ink from an upstream print drum to a paper sheet than from a downstream print drum to the same paper sheet such that images printed on the paper sheet one above the other have the same density at the end of a printing cycle. The method obviates a density difference and the roll-up of a paper sheet ascribable to retransfer particular to a single pass, color printing system. A stencil printer for practicing the method is also disclosed.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: June 24, 2003
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventor: Daisuke Hasebe
  • Patent number: 6564707
    Abstract: A multicolor printing method and system including a master making device having plurality of removable ink drums replaceable with each other and a printing device. The plurality of removable ink drums are fed with respective masters to be used for printing, by fixed master feeding devices smaller in number than the removable ink drums. The removable ink drums fed with respective masters are then used by the printing device for printing onto paper. The method and system provides multicolor printing with lower cost, reduced size and accurate registration between the respective masters, as compared to conventional methods and systems.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: May 20, 2003
    Assignee: Tohoku Ricoh Co., Ltd.
    Inventors: Hironobu Takasawa, Manabu Wakamatsu
  • Patent number: 6530318
    Abstract: An ink supply roll is disposed inside a printing drum of a stencil printer and supplies ink to the inner peripheral surface of the printing drum. At least the surface layer of the ink supply roll is formed of a nonmetal material which is not larger than 100° in contact angle and not larger than ±5% in swelling ratio to an ultraviolet-curing monomer.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: March 11, 2003
    Assignee: Riso Kagaku Corporation
    Inventors: Yasuo Yamamoto, Toshihiro Endo
  • Publication number: 20030000397
    Abstract: The amount of ink in an ink fountain in a printer is detected on the basis of change of oscillation. The oscillation frequency is changed on the basis of dielectric constant information on the dielectric constant of the ink.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 2, 2003
    Applicant: Riso Kagaku Corporation
    Inventor: Hideaki Inoue