Patents by Inventor Shuusei Murai

Shuusei Murai 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).

  • Publication number: 20220161562
    Abstract: A liquid discharge device includes a liquid discharge head including nozzles configured to discharge a liquid, a carriage mounting the liquid discharge head and movable, a wiper configured to wipe a nozzle surface of the liquid discharge head, and a wiper mover configured to hold and move the wiper between a facing position at which the wiper faces the nozzle surface and a standby position at which the wiper does not face the nozzle surface. The carriage movably holds the liquid discharge head and the wiper mover as a single unit.
    Type: Application
    Filed: April 1, 2020
    Publication date: May 26, 2022
    Inventors: Shuusei MURAI, Kiyoshi SUZUKI, Tomomi KATOH
  • Patent number: 11247464
    Abstract: A valve type nozzle controls discharge of liquid by opening and closing an discharge port by a valve element, the discharge port being configured to discharge the liquid, and the valve element being formed movably by applying a predetermined voltage to a piezoelectric element, whereby when the predetermined voltage is applied to the piezoelectric element, the valve element moves in a direction where the moving mechanism opens the discharge port when the piezoelectric element extends. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape, by which the valve element closes the discharge port is closed to prevent the discharge of the liquid.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: February 15, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Patent number: 11207883
    Abstract: A liquid jet device includes a head that discharges liquid to an object; a moving mechanism that moves at least one of the object and the head; and a controller that causes the head to discharge the liquid while moving the at least one of the object and the head in a first direction to form a first row of dots, and causes the head to discharge the liquid while moving the at least one of the object and the head in a second direction opposite the first direction to form a second row of dots that overlaps the first row of dots. The controller causes the center of the first dot in the second row of dots to be shifted from the center of the last dot in the first row of dots by a distance greater than or equal to a distance d.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: December 28, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Patent number: 11148364
    Abstract: A three dimensional modeling apparatus is provided that includes an inkjet nozzle for discharging a molding material; a plurality of recording heads each having the inkjet nozzle; and a curing section for curing the molding material. Each of the plurality of recording heads includes a first recording head that discharges the molding material downward, and at least one of a second recording head that discharges the modeling material in a horizontal direction or a third recording head that discharges the modeling material upward. The inkjet nozzle opens and closes a discharging port with a valve body to discharge the molding material.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 19, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Publication number: 20210316328
    Abstract: A valve type nozzle controls discharge of liquid by opening and closing an discharge port by a valve element, the discharge port being configured to discharge the liquid, and the valve element being formed movably by applying a predetermined voltage to a piezoelectric element, whereby when the predetermined voltage is applied to the piezoelectric element, the valve element moves in a direction where the moving mechanism opens the discharge port when the piezoelectric element extends. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape, by which the valve element closes the discharge port is closed to prevent the discharge of the liquid.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 14, 2021
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Patent number: 11003964
    Abstract: A predetermined area of a print surface is captured by a camera as a plurality of subdivided images to include an end edge portion of a previously printed image on a coating-target object, the end edge portion serving as a connection portion with an image to be drawn to be printed contiguous to the printed image, a composite print surface, which is a plane projection of the print-target surface which is non-plane, is created on the basis of the captured subdivided images, an edited image to be drawn is created by superimposing the image to be drawn on the composite print surface, and the image to be drawn is adjacently printed contiguous to the printed image on the basis of the edited image to be drawn.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: May 11, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Patent number: 10987927
    Abstract: A liquid discharge head for controlling discharging of liquid, the liquid discharge head including a valve body configured to be movable, and to be pressed towards a discharge port from which the liquid is discharged; and a recessed portion provided in the valve body at a position facing the discharge port.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: April 27, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Publication number: 20200324312
    Abstract: A valve type nozzle controls discharge of liquid by opening and closing an discharge port by a valve element, the discharge port being configured to discharge the liquid, and the valve element being formed movably by applying a predetermined voltage to a piezoelectric element, whereby when the predetermined voltage is applied to the piezoelectric element, the valve element moves in a direction where the moving mechanism opens the discharge port when the piezoelectric element extends. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape, by which the valve element closes the discharge port is closed to prevent the discharge of the liquid.
    Type: Application
    Filed: June 29, 2020
    Publication date: October 15, 2020
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Publication number: 20200272867
    Abstract: A predetermined area of a print surface is captured by a camera as a plurality of subdivided images to include an end edge portion of a previously printed image on a coating-target object, the end edge portion serving as a connection portion with an image to be drawn to be printed contiguous to the printed image, a composite print surface, which is a plane projection of the print-target surface which is non-plane, is created on the basis of the captured subdivided images, an edited image to be drawn is created by superimposing the image to be drawn on the composite print surface, and the image to be drawn is adjacently printed contiguous to the printed image on the basis of the edited image to be drawn.
    Type: Application
    Filed: May 11, 2020
    Publication date: August 27, 2020
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Patent number: 10737490
    Abstract: A valve type nozzle controls discharge of a liquid by opening and closing a discharge port by a valve element. The discharge port discharges the liquid, and the valve element moves by applying a predetermined voltage to a piezoelectric element. When the predetermined voltage is applied to the piezoelectric element, the piezoelectric element extends and the valve element moves in a direction where the moving mechanism opens the discharge port. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape by which the valve element closes the discharge port to prevent the discharge of the liquid.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: August 11, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Patent number: 10691987
    Abstract: A predetermined area of a print surface is captured by a camera as a plurality of subdivided images to include an end edge portion of a previously printed image on a coating-target object, the end edge portion serving as a connection portion with an image to be drawn to be printed contiguous to the printed image, a composite print surface, which is a plane projection of the print-target surface which is non-plane, is created on the basis of the captured subdivided images, an edited image to be drawn is created by superimposing the image to be drawn on the composite print surface, and the image to be drawn is adjacently printed contiguous to the printed image on the basis of the edited image to be drawn.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: June 23, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Publication number: 20200039217
    Abstract: A liquid discharge head for controlling discharging of liquid, the liquid discharge head including a valve body configured to be movable, and to be pressed towards a discharge port from which the liquid is discharged; and a recessed portion provided in the valve body at a position facing the discharge port.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Publication number: 20200031117
    Abstract: A liquid jet device includes a head that discharges liquid to an object; a moving mechanism that moves at least one of the object and the head; and a controller that causes the head to discharge the liquid while moving the at least one of the object and the head in a first direction to form a first row of dots, and causes the head to discharge the liquid while moving the at least one of the object and the head in a second direction opposite the first direction to form a second row of dots that overlaps the first row of dots. The controller causes the center of the first dot in the second row of dots to be shifted from the center of the last dot in the first row of dots by a distance greater than or equal to a distance d.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 30, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Publication number: 20200023580
    Abstract: A three dimensional modeling apparatus is provided that includes an inkjet nozzle for discharging a molding material; a plurality of recording heads each having the inkjet nozzle; and a curing section for curing the molding material. Each of the plurality of recording heads includes a first recording head that discharges the molding material downward, and at least one of a second recording head that discharges the modeling material in a horizontal direction or a third recording head that discharges the modeling material upward. The inkjet nozzle opens and closes a discharging port with a valve body to discharge the molding material.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 23, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Publication number: 20190272454
    Abstract: A predetermined area of a print surface is captured by a camera as a plurality of subdivided images to include an end edge portion of a previously printed image on a coating-target object, the end edge portion serving as a connection portion with an image to be drawn to be printed contiguous to the printed image, a composite print surface, which is a plane projection of the print-target surface which is non-plane, is created on the basis of the captured subdivided images, an edited image to be drawn is created by superimposing the image to be drawn on the composite print surface, and the image to be drawn is adjacently printed contiguous to the printed image on the basis of the edited image to be drawn.
    Type: Application
    Filed: May 17, 2019
    Publication date: September 5, 2019
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Publication number: 20190217614
    Abstract: A valve type nozzle controls discharge of liquid by opening and closing an discharge port by a valve element, the discharge port being configured to discharge the liquid, and the valve element being formed movably by applying a predetermined voltage to a piezoelectric element, whereby when the predetermined voltage is applied to the piezoelectric element, the valve element moves in a direction where the moving mechanism opens the discharge port when the piezoelectric element extends. This allows the liquid to be discharged. Further, when the application of the voltage to the piezoelectric element is released, the moving mechanism returns to an original shape, by which the valve element closes the discharge port is closed to prevent the discharge of the liquid.
    Type: Application
    Filed: January 16, 2019
    Publication date: July 18, 2019
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Patent number: 10339430
    Abstract: A predetermined area of a print surface is captured by a camera as a plurality of subdivided images to include an end edge portion of a previously printed image on a coating-target object, the end edge portion serving as a connection portion with an image to be drawn to be printed contiguous to the printed image, a composite print surface, which is a plane projection of the print-target surface which is non-plane, is created on the basis of the captured subdivided images, an edited image to be drawn is created by superimposing the image to be drawn on the composite print surface, and the image to be drawn is adjacently printed contiguous to the printed image on the basis of the edited image to be drawn.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: July 2, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Publication number: 20180336443
    Abstract: A predetermined area of a print surface is captured by a camera as a plurality of subdivided images to include an end edge portion of a previously printed image on a coating-target object, the end edge portion serving as a connection portion with an image to be drawn to be printed contiguous to the printed image, a composite print surface, which is a plane projection of the print-target surface which is non-plane, is created on the basis of the captured subdivided images, an edited image to be drawn is created by superimposing the image to be drawn on the composite print surface, and the image to be drawn is adjacently printed contiguous to the printed image on the basis of the edited image to be drawn.
    Type: Application
    Filed: May 7, 2018
    Publication date: November 22, 2018
    Inventors: Tadashi KAIBA, Shuusei MURAI
  • Patent number: 9033464
    Abstract: A printing apparatus which is capable of printing a pattern and/or a character on a curved printed surface, such as an airframe surface of a passenger aircraft, in a very short time. A head array having therein a plurality of inkjet nozzles for ejecting ink toward a remote position by supplying pressurized air to ink tanks filled with the ink, respectively, is mounted on a linear array so as to be able to perform linear reciprocation, the linear rail being held by a robot arm of a multi-articulated robot 5, and a position at which the robot arm 5a is to be disposed is controlled on the basis of position information, while controlling of driving of predetermined nozzles in the head array is performed in association with the position information.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: May 19, 2015
    Assignee: LAC CORPORATION
    Inventors: Tadashi Kaiba, Shuusei Murai
  • Publication number: 20150009254
    Abstract: [Problems to be Solved] Provision of a printing apparatus which is capable of printing a pattern and/or a character on a curved printed surface, such as an airframe surface of a passenger aircraft, in a very short time. [Means for Solving the Problems] A head array 3 having therein a plurality of inkjet nozzles 16 for ejecting ink toward a remote position by supplying pressurized air to every ink tanks 6 filled with the ink, respectively, is mounted on a linear array 4 so as to be able to perform linear reciprocation, the linear rail being held by an robot arm 5a of a multi-articulated robot 5, and a position at which the robot arm 5a is to be disposed is controlled on the basis of position information, while controlling of driving of predetermined nozzles 16 in the head array 3 is performed in association with the position information.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Inventors: Tadashi KAIBA, Shuusei MURAI