Patents by Inventor Takuya Matsushima

Takuya Matsushima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11440250
    Abstract: A method for shaping a three-dimensional (3D) shaped object using a 3D shaping device including a shaping table having a substantially flat upper surface on which the 3D shaped object is shaped; an ejection unit that ejects ink for 3D shaping, a planar scanning driving unit that relatively moves the ejection unit with respect to the shaping table in a plane parallel to the upper surface of the shaping table; a layering scanning driving unit that relatively separates the ejection unit and the shaping table from each other in a layering scanning direction; and a flattening unit that flattens the ejected and layered ink; where a support layer disposed between the shaping table and the 3D shaped object to support the 3D shaped object from the lower side includes a plurality of layers formed by being layered in plurals on the shaping table before shaping the 3D shaped object.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: September 13, 2022
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventor: Takuya Matsushima
  • Patent number: 11312065
    Abstract: A building apparatus configured to build an object includes inkjet heads serving as a plurality of ejection heads, a scanning driver, and a maintenance unit configured to perform a maintenance of the inkjet head. The scanning driver allows a plurality of inkjet heads to perform at least a main scanning operation and allows the inkjet head to perform the main scanning operation multiple times until building of the object is completed. The maintenance unit performs the maintenance of the inkjet head in an interval between two successive main scanning operations and performs the predetermined maintenance for only part of a plurality of inkjet heads in each maintenance. Hence, building with high accuracy is performed more appropriately.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: April 26, 2022
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kenji Harayama, Takuya Matsushima
  • Patent number: 11247403
    Abstract: Provided is an apparatus for manufacturing a three-dimensional object that may allow a support material to land on a table before a modeling material irrespective of the moving direction of a carriage. The apparatus includes a modeling material head that ejects an ink for object shaping, support material heads that eject an ink for supporting the three-dimensional object, color ink heads that eject color inks, curing units for curing the ejected inks, and a flattening roller unit with a flattening roller used to flatten surfaces of the ejected inks. In the apparatus, one of the curing units, the flattening roller unit, one of the support material heads, the modeling material head, the color ink heads, the other support material head, and the other curing unit are arranged and mounted in the carriage in the mentioned order from one side to the other in the main scanning direction.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: February 15, 2022
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kunio Hakkaku, Kosuke Kobayashi, Kazuhiro Ochi, Kyohei Maruyama, Takuya Matsushima
  • Patent number: 10882254
    Abstract: A printing device is provided and includes: a table attaching portion, replaceably attaching a respective table of a first table for mounting a three-dimensional object and a second table including a mounting surface for mounting a medium and a plurality of pass-through holes passing through the mounting surface and a back surface on an opposite side of the mounting surface; an ejecting unit, ejecting a shaping material for shaping the three-dimensional object and a coloring material for coloring the three-dimensional object and the medium toward the table attached to the table attaching portion; a relative moving portion, relatively moving the table attaching portion and the ejecting unit in a vertical direction and a horizontal direction; and a suction portion, decompressing a side of the back surface of the second table when the second table is attached to the table attaching portion to adsorb the medium to the mounting surface.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: January 5, 2021
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Takuya Matsushima, Tomoya Kawai
  • Patent number: 10843409
    Abstract: A three-dimensional object production apparatus includes a table, an ink-jet head, a flattening roller, a carriage, and a roller lifting-lowering mechanism. The ink-jet head is configured to eject ink droplets toward the table. The flattening roller is configured to flatten a surface of a layer of the ink. The carriage is configured to carry the ink-jet head and the flattening roller. The roller lifting-lowering mechanism is configured to lift and lower the flattening roller, and includes a roller holding member configured to rotatable hold the flattening roller, and a swing mechanism configured to cause the roller holding member to swing between a contact position and a retracted position. The flattening roller is able to contact the surface of the layer of the ink when the contact position is reached, and is retracted to be more on an upward side than the surface of the layer of the ink when the retracted position is reached.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: November 24, 2020
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kosuke Kobayashi, Takuya Matsushima
  • Patent number: 10705248
    Abstract: A sensor control device and a sensor system are provided through which it is possible to automatically detect whether mutual interference occurs for a plurality of sensor units, and it is possible to automatically set periodic light projection timings for preventing mutual interference. A sensor control device includes a light projection control part configured to instruct a light projection operation for each of a plurality of sensor units and a light projection timing setting part configured to set periodic light projection timings when each of the sensor units is periodically operated based on results of light projection control for each of the sensor units and detection results of each of the sensor units.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: July 7, 2020
    Assignee: OMRON Corporation
    Inventors: Takuya Matsushima, Koyo Ozaki, Yusuke Iida
  • Publication number: 20190375160
    Abstract: A shaping apparatus that shapes a three-dimensional shaped object includes inkjet heads which are shaping material heads that eject materials of the shaped object; an inkjet head which is a support material head that ejects a material of a support layer that supports at least one part of the shaped object being shaped; and a mover that moves the shaped object together with the support layer toward a removal tank, which is a container for accommodating the shaped object at the time of removing the support layer.
    Type: Application
    Filed: June 10, 2019
    Publication date: December 12, 2019
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Masayuki Furuse, Kenta Imai, Takuya Matsushima, Masakatsu OKAWA
  • Patent number: 10416346
    Abstract: A photosensor includes a light projection unit, a light receiving unit, a determination unit that determines a magnitude relation between a received light quantity of the light receiving unit and a threshold value set for the received light quantity; and a threshold value setting unit that sets the threshold value of the received light quantity. The threshold value setting unit calculates for each of a plurality of different wavelength regions, a contrast difference that is a difference between a received light quantity obtained when projection is performed on a detection target on a surface of a workpiece and a received light quantity obtained when projection is performed on a background on the surface of the workpiece, and updates the threshold value based on the contrast difference for a wavelength region among the plurality of wavelength regions in which the contrast difference has a maximum value.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: September 17, 2019
    Assignee: OMRON Corporation
    Inventors: Hironobu Morita, Motoharu Okuno, Yasuhito Uetsuji, Kazunari Komai, Takuya Matsushima, Yusuke Iida, Seho Seo
  • Publication number: 20190255769
    Abstract: A method for shaping a three-dimensional (3D) shaped object using a 3D shaping device including a shaping table having a substantially flat upper surface on which the 3D shaped object is shaped; an ejection unit that ejects ink for 3D shaping, a planar scanning driving unit that relatively moves the ejection unit with respect to the shaping table in a plane parallel to the upper surface of the shaping table; a layering scanning driving unit that relatively separates the ejection unit and the shaping table from each other in a layering scanning direction; and a flattening unit that flattens the ejected and layered ink; where a support layer disposed between the shaping table and the 3D shaped object to support the 3D shaped object from the lower side includes a plurality of layers formed by being layered in plurals on the shaping table before shaping the 3D shaped object.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 22, 2019
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Takuya Matsushima
  • Publication number: 20190217539
    Abstract: The present disclosure provides a three-dimensional shaping device having a mechanism for preventing waste liquid generated on a shaping table from flowing down from the shaping table. There is provided a three-dimensional shaping device including a shaping table for shaping a three-dimensional shaped object, a supplying unit that supplies liquid for shaping the three-dimensional shaped object onto a shaping table; and a liquid outflow preventing unit for preventing the waste liquid from flowing out from the shaping table, in which the liquid outflow preventing unit includes a preventing unit that prevents the waste liquid from the shaping table from flowing down or a receiving unit that receives the waste liquid that has flowed down from the shaping table.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventor: Takuya Matsushima
  • Publication number: 20190162605
    Abstract: An output device for a heat flow sensor includes an offset value calculation part configured to calculate an offset value for each gain magnification regarding a plurality of gain magnifications, an amplification part configured to amplify an output value of a heat flow sensor by a first gain magnification among the plurality of gain magnifications, an offset part configured to subtract the offset value corresponding to the first gain magnification from the amplified output value, and an A/D converter configured to convert the output value after subtraction thereof into a digital value.
    Type: Application
    Filed: September 17, 2018
    Publication date: May 30, 2019
    Applicant: OMRON Corporation
    Inventors: Takuya MATSUSHIMA, Koyo OZAKI, Takuma KAWAI, Kiyohiko GONDO
  • Publication number: 20190160731
    Abstract: A building apparatus configured to build an object includes inkjet heads serving as a plurality of ejection heads, a scanning driver, and a maintenance unit configured to perform a maintenance of the inkjet head. The scanning driver allows a plurality of inkjet heads to perform at least a main scanning operation and allows the inkjet head to perform the main scanning operation multiple times until building of the object is completed. The maintenance unit performs the maintenance of the inkjet head in an interval between two successive main scanning operations and performs the predetermined maintenance for only part of a plurality of inkjet heads in each maintenance. Hence, building with high accuracy is performed more appropriately.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 30, 2019
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kenji Harayama, Takuya Matsushima
  • Publication number: 20180304535
    Abstract: A printing device is provided and includes: a table attaching portion, replaceably attaching a respective table of a first table for mounting a three-dimensional object and a second table including a mounting surface for mounting a medium and a plurality of pass-through holes passing through the mounting surface and a back surface on an opposite side of the mounting surface; an ejecting unit, ejecting a shaping material for shaping the three-dimensional object and a coloring material for coloring the three-dimensional object and the medium toward the table attached to the table attaching portion; a relative moving portion, relatively moving the table attaching portion and the ejecting unit in a vertical direction and a horizontal direction; and a suction portion, decompressing a side of the back surface of the second table when the second table is attached to the table attaching portion to adsorb the medium to the mounting surface.
    Type: Application
    Filed: April 16, 2018
    Publication date: October 25, 2018
    Applicant: MIMAKI ENGINEERING CO., LTD.
    Inventors: Takuya Matsushima, Tomoya Kawai
  • Publication number: 20180267203
    Abstract: A photosensor includes a light projection unit, a light receiving unit, a determination unit that determines a magnitude relation between a received light quantity of the light receiving unit and a threshold value set for the received light quantity; and a threshold value setting unit that sets the threshold value of the received light quantity. The threshold value setting unit calculates for each of a plurality of different wavelength regions, a contrast difference that is a difference between a received light quantity obtained when projection is performed on a detection target on a surface of a workpiece and a received light quantity obtained when projection is performed on a background on the surface of the workpiece, and updates the threshold value based on the contrast difference for a wavelength region among the plurality of wavelength regions in which the contrast difference has a maximum value.
    Type: Application
    Filed: December 15, 2017
    Publication date: September 20, 2018
    Applicant: OMRON Corporation
    Inventors: Hironobu MORITA, Motoharu OKUNO, Yasuhito UETSUJI, Kazunari KOMAI, Takuya MATSUSHIMA, Yusuke IIDA, Seho SEO
  • Publication number: 20180224570
    Abstract: A sensor control device and a sensor system are provided through which it is possible to automatically detect whether mutual interference occurs for a plurality of sensor units, and it is possible to automatically set periodic light projection timings for preventing mutual interference. A sensor control device includes a light projection control part configured to instruct a light projection operation for each of a plurality of sensor units and a light projection timing setting part configured to set periodic light projection timings when each of the sensor units is periodically operated based on results of light projection control for each of the sensor units and detection results of each of the sensor units.
    Type: Application
    Filed: November 21, 2017
    Publication date: August 9, 2018
    Applicant: OMRON Corporation
    Inventors: Takuya MATSUSHIMA, Koyo Ozaki, Yusuke Iida
  • Publication number: 20180147786
    Abstract: Provided is an apparatus for manufacturing a three-dimensional object that may allow a support material to land on a table before a modeling material irrespective of the moving direction of a carriage. The apparatus includes a modeling material head that ejects an ink for object shaping, support material heads that eject an ink for supporting the three-dimensional object, color ink heads that eject color inks, curing units for curing the ejected inks, and a flattening roller unit with a flattening roller used to flatten surfaces of the ejected inks. In the apparatus, one of the curing units, the flattening roller unit, one of the support material heads, the modeling material head, the color ink heads, the other support material head, and the other curing unit are arranged and mounted in the carriage in the mentioned order from one side to the other in the main scanning direction.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 31, 2018
    Inventors: Kunio HAKKAKU, Kosuke KOBAYASHI, Kazuhiro OCHI, Kyohei MARUYAMA, Takuya MATSUSHIMA
  • Publication number: 20180147782
    Abstract: To achieve an improved accuracy in vertically positioning the whole surface of a table moved upward or downward in a printer equipped with the table on which a printed matter is placeable and a lifting mechanism for moving the table upward and downward. The printer has a table on which a printed matter is placeable, a table support that supports the table in a manner that the table is movable upward and downward, lifting mechanisms that move the table upward and downward relative to the table support, and guiding mechanisms that vertically guide the table. One of the lifting mechanisms and one of the guiding mechanisms are disposed at positions on a side of the table in X1 direction and are arranged in an aligned manner in Y direction. The other one of the lifting mechanisms and the other one of the guiding mechanisms are disposed at positions on a side of the table in X2 direction and are arranged in an aligned manner in Y direction.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 31, 2018
    Inventors: Kosuke Kobayashi, Takuya Matsushima, Eiji Miyashita
  • Publication number: 20180147781
    Abstract: A three-dimensional object production apparatus includes a table, an ink-jet head, a flattening roller, a carriage, and a roller lifting-lowering mechanism. The ink-jet head is configured to eject ink droplets toward the table. The flattening roller is configured to flatten a surface of a layer of the ink. The carriage is configured to carry the ink-jet head and the flattening roller. The roller lifting-lowering mechanism is configured to lift and lower the flattening roller, and includes a roller holding member configured to rotatable hold the flattening roller, and a swing mechanism configured to cause the roller holding member to swing between a contact position and a retracted position. The flattening roller is able to contact the surface of the layer of the ink when the contact position is reached, and is retracted to be more on an upward side than the surface of the layer of the ink when the retracted position is reached.
    Type: Application
    Filed: November 21, 2017
    Publication date: May 31, 2018
    Inventors: Kosuke Kobayashi, Takuya Matsushima