Patents Assigned to Mimaki Engineering
  • Patent number: 11135762
    Abstract: A manufacturing method for a shaped article is provided and includes manufacturing the shaped article by stacking a plurality of layers on one another, wherein the shaped article comprises a light reflective layer, being formed from an ink having light reflectiveness; a decorative layer; and a transparent layer, being formed from a transparent ink, wherein the decorative layer is formed on an outer side of the light reflective layer, and the transparent layer is formed on an outer side of the decorative layer; and a layer forming process, forming a part of the transparent layer and a part of the decorative layer in this order from an end side toward a center side of at least two of the plurality of layers.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: October 5, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kunio Hakkaku, Hirofumi Hara
  • Publication number: 20210291511
    Abstract: A printing device that performs printing on a medium includes an inkjet head, a main scan driving unit, a sub scan driving unit, and a control unit, where the control unit sets a sub-scanning movement amount based on a basic movement amount, which is a basic movement amount set according to print conditions, and a value indicating a distance for increasing or decreasing the sub-scanning movement amount in the print conditions set at the time of inputting an input correction value. Furthermore, a storage is further provided, which stores a first correction coefficient used when the basic movement amount is within a first range, and a second correction coefficient used when the basic movement amount is within a second range smaller than the first range, and the control unit sets the sub-scanning movement amount based on the basic movement amount and the calculated correction value.
    Type: Application
    Filed: August 7, 2019
    Publication date: September 23, 2021
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Youichi ICHIKAWA, Shuhei HANAOKA
  • Publication number: 20210291512
    Abstract: A printing apparatus operating as a liquid ejecting device is provided and includes: an inkjet head including a plurality of nozzles, a scanning driver that causes the inkjet head to perform a main scan, and a controller. When an abnormal nozzle is present, the controller causes another nozzle in the vicinity of the abnormal nozzle to eject the liquid of a larger amount than that in a normal time to a part of an ejecting position where the liquid can be ejected by the other nozzle based on a mask prepared in advance, so that an amount of liquid to be ejected at the time of the main scanning direction by the other nozzle becomes larger than that in the normal time. The mask is data specifying the ejecting position to increase an ejection amount of the liquid and an ejection amount to be increased at the ejecting position.
    Type: Application
    Filed: June 7, 2021
    Publication date: September 23, 2021
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Wataru HIOKI, Chika Furuya
  • Patent number: 11123997
    Abstract: A liquid ejection device that ejects an ultraviolet-curable liquid includes an inkjet head, which is an ejection head that ejects the ultraviolet-curable liquid; a scanning driver that causes the inkjet head to perform a main scan; an ultraviolet generator; and a light source driver; where the ultraviolet generator irradiates the ultraviolet while moving in the main scanning direction together with the inkjet head; the ultraviolet generator includes a plurality of UV LED elements; the plurality of UV LED elements are arranged such that a light emitting range overlaps a range of the nozzle row in a sub scanning direction; and the light source driver drives the plurality of UV LED elements such that an illuminance at an end portion in the sub scanning direction is larger than an illuminance at a central portion in the light emitting range.
    Type: Grant
    Filed: May 16, 2019
    Date of Patent: September 21, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Kyohei Maruyama
  • Patent number: 11120711
    Abstract: A multilayered printed matter includes a group of print layers formed on a medium. The group of layers include a front layer and a back layer on which patterns are printed, a white layer, and a black layer. The white layer is interposed between the front layer and the back layer to conceal the back layer to be invisible from the side of the front layer. The white layer reflects incident light from the side of the front layer to allow the front layer to be visible from the side of the front layer. The black layer is interposed between the white layer and the back layer to conceal the back layer to be invisible from the side of the front layer. In comparison between the black layer and the white layer that are equal in thickness, the black layer exerts a higher light blocking effect than the white layer.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: September 14, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Yuhei Horiuchi
  • Patent number: 11111401
    Abstract: There is provided a light curing molding ink set used for a manufacturing method for light curing molding using an ink-jet scheme, comprising a combination of a resin composition for a modeling material used for shaping the modeling material and a resin composition for a supporting material used for shaping the supporting material, wherein surface tension Mt (mN/m) of the resin composition for a modeling material is greater than surface tension St (mN/m) of the resin composition for a supporting material, and the surface tension Mt and the surface tension St satisfy the [0<Mt ?St<5] expression, and this light curing molding ink set can afford a light cured article having the good dimensional accuracy.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: September 7, 2021
    Assignees: MAXELL HOLDINGS, LTD., MIMAKI ENGINEERING CO., LTD.
    Inventors: Katsuyuki Kitou, Taeko Izumo, Masakatsu Okawa, Kenta Hongo
  • Patent number: 11104139
    Abstract: A maintenance unit includes a fixed-side cover in which multiple first openings are formed and a movable-side cover in which multiple second openings are formed. A moving mechanism slides the movable-side cover with respect to the fixed-side cover in a Y direction between a closed position where the second opening is disposed between multiple first openings in the Y direction and the movable-side cover closes the first openings, and an open position where the first opening and the second opening adjacent to each other at the closed position are overlapped in the vertical direction and an entire of multiple ink receiving portions are exposed.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: August 31, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Takashi Tsuchiya
  • Publication number: 20210252881
    Abstract: An inkjet printer includes: an inkjet head configured to eject an ink of an ultraviolet-curable type to a medium; an ultraviolet irradiator arranged to adjoin the inkjet head in a main scanning direction where the inkjet head relatively moves with respect to the medium, the ultraviolet irradiator configured to irradiate the ink with an ultraviolet ray; and a controller configured to control the ultraviolet irradiator. In the inkjet printer, the ultraviolet irradiator includes an inner illumination region arranged near the inkjet head in the main scanning direction, and an outer illumination region arranged opposite the inkjet head across the inner illumination region in the main scanning direction, and the controller includes a first irradiation mode where the inner illumination region is unlit and the outer illumination region is lit, and a second irradiation mode where the inner illumination region is lit and the outer illumination region is lit.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 19, 2021
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Daiki Miyazawa
  • Publication number: 20210252886
    Abstract: A manufacturing method of a head leading member, which is provided in a printing machine including a head for discharging an ink toward a working surface, in order to lead the head in a main travelling direction, and the manufacturing method of a head leading member including: a base member fixing step in which a base member, being like a plate, is fixed to a frame extending in the main travelling direction; a guiding reference surface shaping step in which a surface of the base member, in a state of being fixed to the frame, is so manufactured as to be a plane, being along the main travelling direction, in such a way as to shape a guiding reference surface; and a guide member supporting step in which a guide member for leading the head is set in such a way that the guiding reference surface supports the guide member.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 19, 2021
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Toshiki Kitazawa
  • Publication number: 20210245421
    Abstract: The printing and object-shaping system includes inkjet heads that discharge ink droplets of ultraviolet curing-type inks, a curing unit, a platen which is a table-shaped member disposed so as to face the inkjet heads, and a controller configured to control the operations of at least the inkjet heads and the curing unit. This system is operable to carry out operations in a printing mode and a three-dimensional object shaping mode. The printing mode is a mode for performing printing on a medium supported on the platen. The three-dimensional object shaping mode is a mode for depositing an ink in layers on the platen to form a three-dimensional object. The controller receives an instruction to select one of the printing mode and the three-dimensional object shaping mode and controls the operations of at least the inkjet head and the curing unit in accordance with the mode selected.
    Type: Application
    Filed: April 26, 2021
    Publication date: August 12, 2021
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Kunio Hakkaku
  • Patent number: 11087650
    Abstract: A multilayered printed matter includes a group of print layers formed on a medium. The group of layers include a front layer and a back layer on which patterns are printed, a white layer, and a black layer. The white layer is interposed between the front layer and the back layer to conceal the back layer to be invisible from the side of the front layer. The white layer reflects incident light from the side of the front layer to allow the front layer to be visible from the side of the front layer. The black layer is interposed between the white layer and the back layer to conceal the back layer to be invisible from the side of the front layer. In comparison between the black layer and the white layer that are equal in thickness, the black layer exerts a higher light blocking effect than the white layer.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: August 10, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Yuhei Horiuchi
  • Patent number: 11084231
    Abstract: The thickness of a surface decoration layer is increased without significantly deteriorating the representation of the tone and the gradation of the color. A method for producing a three-dimensional object includes forming a surface decoration layer 11 using white material 15, at least one coloring material 13 other than white, and clear material 14, and using the at least one coloring material 13 and the clear material 14. The surface decoration layer 11 includes a plurality of layers formed by building a plurality of layer bodies one above the other. At least one of the layer bodies is formed with the white material 15 in at least one location among the lowermost layer of the surface decoration layer 11 and a region of an internal formation region 12 close to the surface decoration layer 11. The internal formation region constitutes an internal portion of the three-dimensional object. The plurality of layers constituting the surface decoration layer 11 includes the same color.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: August 10, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Masakatsu Okawa
  • Patent number: 11084302
    Abstract: An inkjet printing apparatus includes a mounting unit where a recording medium is mountable, a head unit that ejects ink droplets to the recording medium, a planar direction driving unit that drives at least one of the head unit ejecting the ink droplets and the mounting unit to move in a planar direction and that changes a relative positions of the head unit and the mounting unit in the planar direction, and a height direction driving unit that changes a relative positions of the head unit and the mounting unit in a height direction perpendicular to the planar direction. The planar direction driving unit has a moving speed changing mechanism that changes a carriage speed between the head unit and the mounting unit in the planar direction. The height direction driving unit has a distance changing mechanism that changes a distance between the head unit and the mounting unit.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: August 10, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Masaru Ohnishi
  • Patent number: 11084299
    Abstract: A printing system is provided and includes an image processing portion that generates a generated image by image processing, and a printing portion that performs printing on a medium based on the generated image. The image processing portion generates the generated image by performing a quantization processing that performs quantization by comparing the pixel value of each pixel in the input image with a threshold, and in the quantization processing, calculates a dot influence value indicating to what extent a position corresponding to a selected pixel is covered by the ink dots formed at the position set on the medium in correspondence with the peripheral pixels of the selected pixel, performs adjustment of reflecting the dot influence value on at least one of the pixel value of the selected pixel or the threshold, and compares the pixel value and the threshold based on a value after adjustment.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: August 10, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Wataru Arai
  • Publication number: 20210237438
    Abstract: This inkjet printer includes a temperature sensor for detecting temperature of UV ink inside an inkjet head, and the inkjet head includes multiple piezoelectric elements that eject UV ink from each of a plurality of nozzles. In this inkjet printer, a controller that controls the inkjet printer constantly monitors temperature detected by the temperature sensor, and controls a drive voltage applied to the piezoelectric element in real time on the basis of a detection result of the temperature sensor so that a drive voltage applied to the piezoelectric element becomes low in response to a temperature rise detected by the temperature sensor.
    Type: Application
    Filed: January 28, 2021
    Publication date: August 5, 2021
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Yutaro Kishida
  • Publication number: 20210237424
    Abstract: A method for forming a three-dimensional object by a fused deposition modeling method. The method uses a plurality of material resin supply units, each configured to supply a coloring material resin of a different color, and the coloring material resins are resins to be used as a modeling material. A mixed resin ejection unit is configured to eject a mixed resin obtained by mixing the coloring material resins supplied from the plurality of material resin supply units. The plurality of material resin supply units being configured to supply the coloring material resins of different colors to the mixed resin ejection unit. The method includes controlling the amounts of the coloring material resins to be supplied from each of the plurality of material resin supply units to the mixed resin ejection unit, thereby adjusting a color of the mixed resin that is to be ejected by the mixed resin ejection unit.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Applicants: MIMAKI ENGINEERING CO., LTD., GRAPHIC CREATION Co.,Ltd.
    Inventors: Hirofumi HARA, Akira IKEDA
  • Patent number: 11077609
    Abstract: A building apparatus for building a three-dimensional object includes: an inkjet head that ejects ink as a building material; a scanning driver that causes the inkjet head to perform a scanning operation of moving relative to the object being built; a flattening roller that flattens a layer of the ink; and an ink removal unit that removes, from the flattening roller, the ink that is scraped off by the flattening roller. The ink removal unit includes a flow channel formation unit that forms a flow channel of fluid that enables the ink adhering to the flattening roller to be removed by causing the fluid for removing the ink to flow out or flow in, and removes the ink from the flattening roller without scraping off the ink from the flattening roller. Hence, flattening the layer of the building material more appropriately.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 3, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Kunio Hakkaku
  • Publication number: 20210229341
    Abstract: A manufacturing method for manufacturing a colored product, where using inkjet heads which are a plurality of color ink heads, and an inkjet head, which is a colorless ink head, a plurality of coloring regions are formed in an overlapping manner in a normal direction, a surface side colored region, which is a region located closest to the surface of the colored product is formed using at least the color ink ejected from any of the inkjet heads, and an inner colored region, which is a region located farther from the surface of the colored product than the surface side colored region is formed using at least the color ink ejected from any of the inkjet heads and the colorless ink ejected from the inkjet head.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 29, 2021
    Applicants: MIMAKI ENGINEERING CO., LTD., NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Wataru ARAI, Kunio Hakkaku, Norimichi Tsumura, Keita Hirai, Junki Yoshii
  • Publication number: 20210221150
    Abstract: In an inkjet printer, an ultraviolet irradiator includes a first irradiation portion disposed at the same position as a color ink ejection portion in a front-back direction and a third irradiation portion disposed on the front side of a clear ink ejection portion in the front-back direction, where at the time of printing in a gloss tone printing mode, an average illuminance of a fifth irradiation portion that forms the front side portion of the first irradiation portion is lower than an average illuminance of a fourth irradiation portion that forms the back side portion of the first irradiation portion.
    Type: Application
    Filed: January 19, 2021
    Publication date: July 22, 2021
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Yutaro Kishida
  • Patent number: 11065901
    Abstract: A transfer method is provided and includes a disposing step of disposing a transfer sheet and a medium in an inside of a sealed space formed by using a pressure welding sheet having flexibility in at least one part; a pressure welding step of suctioning the inside of the sealed space by a negative pressure and pressure welding the pressure welding sheet and the medium by the negative pressure to closely attach the transfer sheet and the medium; an irradiating step of softening an adhesive layer of the transfer sheet by irradiation of a light ray in a state in which the transfer sheet is closely attached to the medium by the pressure welding sheet and adhering the adhesive layer to the medium by a pressure welding force from the pressure welding sheet; and a peeling step of peeling off the transfer sheet from the medium after the irradiating step.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: July 20, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Masaru Ohnishi