Patents by Inventor Masahiko Kubota

Masahiko Kubota 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: 9902154
    Abstract: A platen disposed so as to face a printing head includes a third support portion. A second suction hole is formed in an area through which a recording medium passes at least beyond the third support portion in the width direction of the recording medium or downstream of the third support portion in the conveyance direction. A supply port is formed between the third support portion and the second suction hole. Air is sucked into the second suction hole and supplied toward the recording medium through the supply port.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: February 27, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
  • Publication number: 20170341399
    Abstract: A printing apparatus according to the present invention includes a plurality of ejection heads for ejecting liquid and a plurality of mist collection units configured to collect mist generated by the ejection heads that are disposed along a medium conveyance direction. The plurality of mist collection units include a first mist collection unit. The first mist collection unit is provided to be inclined to the upstream side of a medium conveyance direction with regard to a perpendicular line perpendicular to a floor. The first mist collection unit has a liquid retention part disposed at the upstream side than an ink mist suction hole.
    Type: Application
    Filed: May 24, 2017
    Publication date: November 30, 2017
    Inventors: Hiroshi Arimizu, Shinya Asano, Yusuke Imahashi, Masahiko Kubota, Arihito Miyakoshi, Yoshinori Itoh
  • Patent number: 9796925
    Abstract: There is provided a method for selectively removing a plurality of target objects by using a stripping solution without causing damage to an underlying material, the target objects including a resist used as a mask material for dry etching and a transformed layer and a deposited film formed during the dry etching, the stripping solution including a first composition, a second composition, and a third composition, and the method including continuously changing the composition of the stripping solution from the first composition to the second composition and then from the second composition to the third composition.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: October 24, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Hiramoto, Atsunori Terasaki, Yoshiyuki Fukumoto, Ryoji Kanri, Masahiko Kubota
  • Publication number: 20170274676
    Abstract: A platen disposed at a position at which the platen faces a printing head includes a contact portion that comes into contact with a recording medium, a non-contact portion that does not come into contact with the recording medium, and an ink receiving portion that receives ink ejected to beyond the recording medium. A recessed portion is formed between the ink receiving portion and the contact portion in the width direction of the recording medium so as to be lower than the contact portion in the vertical direction. A supply portion that supplies air to the recessed portion is formed upstream of the recessed portion in the conveyance direction of the recording medium.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 28, 2017
    Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
  • Publication number: 20170259571
    Abstract: A platen disposed so as to face a printing head includes a third support portion. A second suction hole is formed in an area through which a recording medium passes at least beyond the third support portion in the width direction of the recording medium or downstream of the third support portion in the conveyance direction. A supply port is formed between the third support portion and the second suction hole. Air is sucked into the second suction hole and supplied toward the recording medium through the supply port.
    Type: Application
    Filed: March 8, 2017
    Publication date: September 14, 2017
    Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
  • Publication number: 20170217192
    Abstract: A blowout port for gas is efficiently configured without impairing mist collection performance. Two blowout ports for gas are adjacent to each other by interposing a partition. An end of the partition is provided at a position near a deep side of the two blowout ports relative to ends of the two blowout ports so as to form a step.
    Type: Application
    Filed: January 25, 2017
    Publication date: August 3, 2017
    Inventors: Yusuke Imahashi, Masahiko Kubota, Hiroshi Arimizu, Nobuhito Yamaguchi, Arihito Miyakoshi, Yoshinori Itoh
  • Patent number: 9701122
    Abstract: A liquid ejecting apparatus includes a moving unit configured to make a relative movement between at least one liquid ejecting unit, having an ejection port for ejecting liquid, and a print medium. The liquid ejecting apparatus includes at least one mist removing unit provided downstream of the at least one liquid ejecting unit in a movement direction in which the print medium is moved in the case of relative movement. The mist removing unit includes at least one suction hole configured to suck air existing in a region defined by the liquid ejecting unit and the print medium together with mist, and at least one blowing hole that is formed downstream of the suction hole in the movement direction, with the blowing hole configured to blow air toward the print medium so as to generate a vortex of gas downstream of the suction hole.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: July 11, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Arimizu, Masahiko Kubota, Nobuhito Yamaguchi, Arihito Miyakoshi, Koichi Ishida, Yoshinori Itoh
  • Publication number: 20170157959
    Abstract: An object of the present invention is to provide an ink jet printing apparatus that can alleviate an adverse influence by ink mist or airflow turbulence with an inexpensive and small-sized configuration without using power. A printing unit includes a first opening that is parallel to a main scanning direction and is formed at a first surface facing a space defined between an ejection port surface having ejection ports formed thereat and a print medium and a second opening formed at a second surface that is parallel to the main scanning direction and different from the first surface. The first opening and the second opening communicate with each other via a first communication path. The first opening and the second opening are formed in different pressure regions, respectively, in which pressures different from each other are produced when the printing unit is moved in the main scanning direction.
    Type: Application
    Filed: November 22, 2016
    Publication date: June 8, 2017
    Inventors: Hiroshi Arimizu, Masahiko Kubota, Nobuhito Yamaguchi, Yusuke Imahashi, Arihito Miyakoshi, Yoshinori Itoh
  • Patent number: 9616663
    Abstract: Adhesion of particles to a liquid ejecting head due to an electric field generated at an electric power supply wire disposed in the liquid ejecting head can be suppressed. The liquid ejecting head is provided with a conductive member covering at least a part of the electric power supply wire for supplying electric power to an ejection energy generating unit configured to generate ejection energy for ejecting liquid, with an insulator therebetween. The conductive member covers the electric power supply wire in a coverage determined based on a relative movement speed between an ejection port and a print medium, a size of particles floating between an ejection port forming surface and the print medium, an electric charge amount of the particles, and a voltage applied to the electric power supply wire.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: April 11, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshinori Itoh, Nobuhito Yamaguchi, Hiroshi Arimizu, Yusuke Imahashi, Arihito Miyakoshi, Masahiko Kubota, Koichi Ishida
  • Publication number: 20170073579
    Abstract: There is provided a method for selectively removing a plurality of target objects by using a stripping solution without causing damage to an underlying material, the target objects including a resist used as a mask material for dry etching and a transformed layer and a deposited film formed during the dry etching, the stripping solution including a first composition, a second composition, and a third composition, and the method including continuously changing the composition of the stripping solution from the first composition to the second composition and then from the second composition to the third composition.
    Type: Application
    Filed: September 7, 2016
    Publication date: March 16, 2017
    Inventors: Atsushi Hiramoto, Atsunori Terasaki, Yoshiyuki Fukumoto, Ryoji Kanri, Masahiko Kubota
  • Patent number: 9579896
    Abstract: There is provided a liquid ejecting apparatus and a liquid ejecting head in which mist does not close an ejection port so as to prevent any degradation of the reliability of ejection. In view of this, a ceiling surface is formed between a mist recovering unit and a gas blowing unit in a mist recovering mechanism, thus forming a recess. Inside of the recess are formed a suction port of the mist recovering unit and a gas blowing port of the gas blowing unit.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: February 28, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yusuke Imahashi, Hiroshi Arimizu, Nobuhito Yamaguchi, Arihito Miyakoshi, Yoshinori Itoh, Masahiko Kubota
  • Publication number: 20160347092
    Abstract: A platen includes: a supporting portion that can support a sheet; a suction unit that sucks the sheet in such a manner as to attach the sheet to the supporting portion; a first ink receiver that receives ink ejected downstream of the leading end of the sheet passing the supporting portion; and a second ink receiver that receives ink ejected upstream of the trailing end of the sheet passing the supporting portion.
    Type: Application
    Filed: May 20, 2016
    Publication date: December 1, 2016
    Inventors: Tetsuji Kurata, Seiji Ogasawara, Masakazu Tsukuda, Takahide Onuma, Yasunori Saito, Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
  • Patent number: 9498962
    Abstract: A printing device includes: a head that ejects an ink on a medium to perform printing; and a mist collection mechanism having: a suction port facing the medium and sucking air near the head; an exhaust port discharging the sucked air; and an airflow path between the suction port and the exhaust port, wherein the airflow path includes a first spatial region located on a side of the suction port, and a second spatial region located on a side of the exhaust port and adjacent to the first spatial region through a communicating port having an opening area smaller than that of the suction port.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: November 22, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koichi Ishida, Masahiko Kubota, Nobuhito Yamaguchi, Hiroshi Arimizu, Yusuke Imahashi, Arihito Miyakoshi, Yoshinori Itoh
  • Patent number: 9469114
    Abstract: A liquid ejection apparatus is provided which serves to simplify a configuration for collection of mist and to suppress the adverse effect, on landing accuracy for a liquid, of an electrostatic force for connection of mist. The ink jet printing apparatus has a blowout mechanism configured to blow out a gas through a blowout port toward a print medium. Furthermore, the ink jet printing apparatus has an electrode disposed on a platen that supports the print medium and configured to attract mist to the print medium when the electrode is supplied with power.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: October 18, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Nobuhito Yamaguchi, Hiroshi Arimizu, Yoshinori Itoh
  • Publication number: 20160271950
    Abstract: There is provided a liquid ejecting apparatus and a liquid ejecting head in which mist does not close an ejection port so as to prevent any degradation of the reliability of ejection. In view of this, a ceiling surface is formed between a mist recovering unit and a gas blowing unit in a mist recovering mechanism, thus forming a recess. Inside of the recess are formed a suction port of the mist recovering unit and a gas blowing port of the gas blowing unit.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Inventors: Yusuke Imahashi, Hiroshi Arimizu, Nobuhito Yamaguchi, Arihito Miyakoshi, Yoshinori Itoh, Masahiko Kubota
  • Publication number: 20160271952
    Abstract: A suction hole sucks air existing in a region S together with mist is formed downstream of a liquid ejecting unit, as viewed from the liquid ejecting unit, in a movement direction (i.e., a direction E) of a print medium in the case of relative movement between the liquid ejecting unit and the print medium. Moreover, a blowing hole blows air toward the print medium so as to generate a vortex of gas downstream of the suction hole is formed downstream of the suction hole in the movement direction. Here, a relationship expressed by the following expression is satisfied: ??h/3 where ? represents a maximum vortex core radius (mm) of the vortex in a direction perpendicular to the print medium and h represents a distance (mm) between a blowing hole and the print medium.
    Type: Application
    Filed: March 18, 2016
    Publication date: September 22, 2016
    Inventors: Hiroshi Arimizu, Masahiko Kubota, Nobuhito Yamaguchi, Arihito Miyakoshi, Koichi Ishida, Yoshinori Itoh
  • Patent number: 9440443
    Abstract: A liquid ejecting head is provided with a suction port capable of avoiding the return of mists, which have already been sucked through a suction port, back to the suction port. In view of this, the inner diameter of a suction tube for allowing liquid mists taken in through the suction port to pass is designed such that a meniscus is formed before a liquid droplet adhering to the inside of the suction tube grows enough to move toward the suction port.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: September 13, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Arimizu, Masahiko Kubota, Nobuhito Yamaguchi, Arihito Miyakoshi, Koichi Ishida, Yoshinori Itoh
  • Publication number: 20160260601
    Abstract: A method for manufacturing a structure having a substrate in which holes are formed and a photosensitive resin layer provided on the substrate in such a manner as to cover at least a part of the holes includes a process of preparing a substrate in which holes formed by a surface in which a wavelike shape is formed and a photosensitive resin layer provided on the substrate in such a manner as to cover at least a part of the holes and an exposure process of exposing the photosensitive resin layer on the substrate.
    Type: Application
    Filed: March 2, 2016
    Publication date: September 8, 2016
    Inventors: Hiroshi Higuchi, Masataka Kato, Yoshinao Ogata, Toshiyasu Sakai, Takayuki Kamimura, Tetsushi Ishikawa, Atsunori Terasaki, Masahiko Kubota, Ryoji Kanri, Yoshiyuki Fukumoto, Yasuaki Tominaga, Tamaki Sato, Masafumi Morisue
  • Publication number: 20160207309
    Abstract: The present invention suppresses the adhesion of a particle to a liquid ejecting head due to an electric field generated at an electric power supply wire disposed in the liquid ejecting head. The liquid ejecting head is provided with a conductive member covering at least a part of the electric power supply wire for supplying electric power to an ejection energy generating unit configured to generate ejection energy for ejecting liquid via an insulator. The conductive member covers the electric power supply wire in a coverage determined based on a relative movement speed between an ejection port and a print medium, a size of a particle floating between an ejection port forming surface and the print medium, an electric charge amount of the particle, and a voltage applied to the electric power supply wire.
    Type: Application
    Filed: January 15, 2016
    Publication date: July 21, 2016
    Inventors: Yoshinori Itoh, Nobuhito Yamaguchi, Hiroshi Arimizu, Yusuke Imahashi, Arihito Miyakoshi, Masahiko Kubota, Koichi Ishida
  • Patent number: 9381746
    Abstract: An ink mist collection apparatus capable of suppressing adhesion of ink mist to an inner surface of a suction path, an ink jet printing apparatus, and an ink mist collection method are provided. Air above a print medium is sucked with the ink mist from a suction port through a suction path, the suction port being located downstream with respect to a print head in a conveying direction of the print medium and being opposite to the print medium. Gas is discharged from a discharge port into the inside of the suction path.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: July 5, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Arihito Miyakoshi, Masahiko Kubota, Nobuhito Yamaguchi, Hiroshi Arimizu, Koichi Ishida, Yoshinori Itoh