Patents by Inventor Takahiko Sugiura

Takahiko Sugiura 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: 12157306
    Abstract: A liquid discharge apparatus to apply liquid to an application surface includes a head and processing circuitry. The head applies the liquid discharged from a nozzle to the application surface. The processing circuitry outputs abnormal discharge information of the nozzle. The abnormal discharge information is detected based on a shape of the liquid applied to the application surface.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: December 3, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Takahiko Sugiura, Takayuki Ito, Kenji Kamei, Taito Omura, Hikaru Fukazawa
  • Publication number: 20230191777
    Abstract: A liquid discharge apparatus to apply liquid to an application surface includes a head and processing circuitry. The head applies the liquid discharged from a nozzle to the application surface. The processing circuitry outputs abnormal discharge information of the nozzle. The abnormal discharge information is detected based on a shape of the liquid applied to the application surface.
    Type: Application
    Filed: October 14, 2022
    Publication date: June 22, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Takahiko Sugiura, Takayuki Ito, Kenji Kamei, Taito Omura, Hikaru Fukazawa
  • Patent number: 11679603
    Abstract: A liquid discharge apparatus includes a conveyance roller, a liquid discharge head, and a control device. The control device controls the head to discharge liquid onto a medium X times in the main scanning direction and Y times in the sub-scanning direction and controls the roller such that a position of a droplet on the medium discharged by an m-th discharge and a position of another droplet on the medium discharged by an (m+Y)-th discharge are same in the sub-scanning direction, where m is an integer not smaller than one and not greater than ((X?1)×Y). Where P is a circumferential length of the roller and L is a difference in a conveyance distance in the sub-scanning direction when the m-th discharge is compared with the (m+Y)-th discharge, the following relation is satisfied: L=(n+(??/2?))×P, where |????|<60° and n is an integer.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: June 20, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yosuke Saito, Daiki Marumo, Takahiko Sugiura, Shotaro Takeuchi
  • Patent number: 11623455
    Abstract: A liquid discharge apparatus includes a color component divided data generation unit, a dot data generation processing unit, and a dot data segmentation processing unit. The color component divided data generation unit generates color component divided data from image data. The dot data generation processing unit applies a dot data generation mask to the color component divided data to generate dot data. The dot data segmentation processing unit applies a segmentation mask to the dot data to generate scan data. A width of the segmentation mask in a main scanning direction is different from a width of the dot data generation mask in the main scanning direction.
    Type: Grant
    Filed: October 6, 2021
    Date of Patent: April 11, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Kimito Abe, Shotaro Takeuchi, Masanori Hirano, Takayuki Ito, Takahiko Sugiura, Daiki Marumo, Kyohei Hamada
  • Publication number: 20220111659
    Abstract: A liquid discharge apparatus includes a color component divided data generation unit, a dot data generation processing unit, and a dot data segmentation processing unit. The color component divided data generation unit generates color component divided data from image data. The dot data generation processing unit applies a dot data generation mask to the color component divided data to generate dot data. The dot data segmentation processing unit applies a segmentation mask to the dot data to generate scan data. A width of the segmentation mask in a main scanning direction is different from a width of the dot data generation mask in the main scanning direction.
    Type: Application
    Filed: October 6, 2021
    Publication date: April 14, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kimito Abe, Shotaro Takeuchi, Masanori Hirano, Takayuki Ito, Takahiko Sugiura, Daiki Marumo, Kyohei Hamada
  • Publication number: 20220111666
    Abstract: A liquid discharge apparatus includes a conveyance roller, a liquid discharge head, and a control device. The control device controls the head to discharge liquid onto a medium X times in the main scanning direction and Y times in the sub-scanning direction and controls the roller such that a position of a droplet on the medium discharged by an m-th discharge and a position of another droplet on the medium discharged by an (m+Y)-th discharge are same in the sub-scanning direction, where m is an integer not smaller than one and not greater than ((X?1)×Y). Where P is a circumferential length of the roller and L is a difference in a conveyance distance in the sub-scanning direction when the m-th discharge is compared with the (m+Y)-th discharge, the following relation is satisfied: L=(n+(??/2?))×P, where |????|<60° and n is an integer.
    Type: Application
    Filed: October 8, 2021
    Publication date: April 14, 2022
    Inventors: Yosuke SAITO, Daiki MARUMO, Takahiko SUGIURA, Shotaro TAKEUCHI
  • Patent number: 9969169
    Abstract: A liquid discharger comprises a head including a nozzle face and a nozzle that discharges liquid droplets, the nozzle formed on the nozzle face, a carriage that mounts the moves the head in a train scanning direction, a driver that moves the carriage in the main scanning direction, a cap that contacts and covers the nozzle face, a cap mover that moves the cap between a capping position, in which the cap contacts the nozzle face, and an evacuation position, in which the cap is separated from the nozzle face, and processing circuitry configured to judge whether a capping failure has occurred based on a driving force that is measured when the carriage starts to move in the main scanning direction after the cap mover moves the cap to the capping position.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: May 15, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuta Moriwaki, Takahiko Sugiura
  • Publication number: 20170106655
    Abstract: A liquid discharger comprises a head including a nozzle face and a nozzle that discharges liquid droplets, the nozzle formed on the nozzle face, a carriage that mounts the moves the head in a train scanning direction, a driver that moves the carriage in the main scanning direction, a cap that contacts and covers the nozzle face, a cap mover that moves the cap between a capping position, in which the cap contacts the nozzle face, and an evacuation position, in which the cap is separated from the nozzle face, and processing circuitry configured to judge whether a capping failure has occurred based on a driving force that is measured when the carriage starts to move in the main scanning direction after the cap mover moves the cap to the capping position.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Inventors: Yuta MORIWAKI, Takahiko SUGIURA
  • Publication number: 20070170659
    Abstract: A metal gasket capable of preventing the occurrence of cracks in a stopper while employing a wave-shaped stopper, improving the contact pressure balance around the bead to enhance the engine performance, and improving the durability of the stopper. The metal gasket is constituted by a gasket component sheet having an opening formed to face a combustion chamber, and the gasket component sheet is provided with a combustion chamber bead surrounding the opening. An inner circumference side stopper lower than the height of the combustion chamber bead is formed along the combustion chamber bead in a portion between the combustion chamber bead and the opening such that at least a section of each wave where stress amplitude is large becomes thin, a thin portion and a thick portion are arranged alternately in each wave, and the hardness of the thin portion is higher than that of the thick portion.
    Type: Application
    Filed: February 23, 2007
    Publication date: July 26, 2007
    Applicants: Koichi Hatamura, KOKUSAN PARTS INDUSTRY CO., LTD.
    Inventors: Koichi Hatamura, Takashi Suzuki, Hiroyuki Ogino, Takahiko Sugiura, Yasuyuki Okudaira, Takeshi Wakuda, Reiji Mahigashi, Keisuke Umehara, Masahisa Kumashiro
  • Patent number: 7204491
    Abstract: A metal gasket capable of preventing the occurrence of cracks in a stopper while employing a wave-shaped stopper, improving the contact pressure balance around the bead to enhance the engine performance, and improving the durability of the stopper. The metal gasket is constituted by a gasket component sheet having an opening formed to face a combustion chamber, and the gasket component sheet is provided with a combustion chamber bead surrounding the opening. An inner circumference side stopper lower than the height of the combustion chamber bead is formed along the combustion chamber bead in a portion between the combustion chamber bead and the opening such that at least a section of each wave where stress amplitude is large becomes thin, a thin portion and a thick portion are arranged alternately in each wave, and the hardness of the thin portion is higher than that of the thick portion.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: April 17, 2007
    Assignees: Kokusan Parts Industry Co., Ltd.
    Inventors: Koichi Hatamura, Takashi Suzuki, Hiroyuki Ogino, Takahiko Sugiura, Yasuyuki Okudaira, Takeshi Wakuda, Reiji Mahigashi, Keisuke Umehara, Masahisa Kumashiro
  • Publication number: 20050173868
    Abstract: A metal gasket capable of preventing the occurrence of cracks in a stopper while employing a wave-shaped stopper, improving the contact pressure balance around the bead to enhance the engine performance, and improving the durability of the stopper. The metal gasket is constituted by a gasket component sheet having an opening formed to face a combustion chamber, and the gasket component sheet is provided with a combustion chamber bead surrounding the opening. An inner circumference side stopper lower than the height of the combustion chamber bead is formed along the combustion chamber bead in a portion between the combustion chamber bead and the opening such that at least a section of each wave where stress amplitude is large becomes thin, a thin portion and a thick portion are arranged alternately in each wave, and the hardness of the thin portion is higher than that of the thick portion.
    Type: Application
    Filed: January 21, 2005
    Publication date: August 11, 2005
    Applicants: Koichi HATAMURA, KOKUSAN PARTS INDUSTRY CO., LTD
    Inventors: Koichi Hatamura, Takashi Suzuki, Hiroyuki Ogino, Takahiko Sugiura, Yasuyuki Okudaira, Takeshi Wakuda, Reiji Mahigashi, Keisuke Umehara, Masahisa Kumashiro
  • Patent number: D521884
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: May 30, 2006
    Assignee: KDS Corporation
    Inventor: Takahiko Sugiura
  • Patent number: D528447
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: September 19, 2006
    Assignee: KDS Corporation
    Inventor: Takahiko Sugiura
  • Patent number: D528448
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: September 19, 2006
    Assignee: KDS Corporation
    Inventor: Takahiko Sugiura
  • Patent number: D594309
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: June 16, 2009
    Assignee: Muratec-KDS Corp.
    Inventors: Takahiko Sugiura, Katsuyuki Kondo