Patents by Inventor Masataka Kato

Masataka Kato 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: 11027548
    Abstract: A liquid ejection head includes an ejection port member that includes an ejection port that ejects a liquid, an energy generating element that generates energy for ejecting the liquid from the ejection port, a terminal electrically connected to the energy generating element, and a substrate portion that supports the ejection port member, the energy generating element, and the terminal. The terminal is connected to a wire member that supplies electric power that drives the energy generating element to the energy generating element, the substrate portion includes a hole portion formed from a surface of the substrate portion on a side opposite to a surface of the substrate portion on which the terminal is provided to a surface where the terminal is exposed, and an area of the surface where the terminal is exposed is smaller than an area of an opening of the hole portion.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: June 8, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Souta Takeuchi, Takuya Hatsui, Masataka Kato, Masaya Uyama, Toru Nakakubo, Tomohiro Takahashi
  • Publication number: 20210155002
    Abstract: An ejection apparatus includes a platen for supporting a recording medium, an absorber provided in the platen for absorbing liquid, an ejection unit for ejecting a plurality of types of ink including a first liquid containing a component to be deposited when the first liquid is ejected onto the absorber, and a second liquid different from the first liquid for suppressing deposition of the first liquid, a detection unit for detecting a state of a predetermined region of the absorber, and a control unit for controlling the detection unit to detect the state, and controlling the ejection unit to eject the second liquid to the predetermined region based on a result of the detection. When the first liquid is ejected to the predetermined region, the second liquid is ejected to the predetermined region after the ejection of the first liquid is finished, without using the result of the detection.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 27, 2021
    Inventors: Tomoki Yamamuro, Kazuo Suzuki, Toshimitsu Danzuka, Yasunori Fujimoto, Masataka Kato, Kazuki Narumi, Hiroto Kango, Kazuhiko Sato
  • Patent number: 10946650
    Abstract: A liquid ejection head has on one surface of a substrate a liquid flow path having an ejection orifice and a liquid generating energy generating element while the element is protected against liquid by an insulating layer formed on the surface. The liquid ejection head further has a liquid inflow path and a liquid outflow path each running through the substrate and the insulating layer to circulate liquid. The liquid inflow path and the liquid outflow path each have a first opening on the surface of the substrate and a second opening on the surface of the insulating layer and for each of the liquid inflow and outflow paths, the end on the ejection orifice side of the second opening is located closer to the ejection orifice than the end on the ejection orifice side of the first opening.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: March 16, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masataka Kato
  • Publication number: 20210060982
    Abstract: Provided is an inkjet printing apparatus that can reduce smears on a back surface of a print result medium by reducing accumulation of ink in a platen while reducing generation of mist. To achieve this, an ink receiving portion of a platen is provided away from a support surface by a predetermined distance, is formed in a mesh shape by laying multiple linear members, and is formed as a guide member that guides the ink received in the ink receiving portion to an ink guide holes.
    Type: Application
    Filed: August 28, 2020
    Publication date: March 4, 2021
    Inventors: Shin Genta, Kazuhiko Sato, Kazuo Suzuki, Yoshinori Nakajima, Masataka Kato, Mitsutoshi Nagamura, Satoshi Azuma, Shingo Nishioka, Sae Mogi
  • Publication number: 20210031547
    Abstract: An inkjet printing apparatus, comprising a printing head, a carriage having the printing head, a first roller pair disposed upstream of the printing head and configured to nip and convey a printing medium, a second roller pair disposed downstream of the printing head and configured to nip and convey a printing medium, a first ink receiver disposed inside a printing region and configured to receive an ink from the printing head, and a second ink receiver disposed outside the printing region and configured to receive an ink from the printing head, wherein the printing head performs preliminary discharge on the first ink receiver in a first nip state, and performs preliminary discharge on the second ink receiver in a second nip state.
    Type: Application
    Filed: July 23, 2020
    Publication date: February 4, 2021
    Inventors: Masataka Kato, Kazuhiko Sato, Kazuo Suzuki, Toshimitsu Danzuka, Yasunori Fujimoto, Shin Genta, Kazuki Narumi, Tomoki Yamamuro, Hiroto Kango
  • Patent number: 10906304
    Abstract: A semiconductor element includes an insulation layer and a pad portion for electrical connection to an external portion by wire bonding. The insulation layer includes a plurality of projections projecting from a main surface of the insulation layer. The pad portion is disposed on an upper surface of each of the projections without extending beyond the upper surface of the projection on which the pad portion is formed.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: February 2, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaya Uyama, Takuya Hatsui, Souta Takeuchi, Masataka Kato, Toru Nakakubo, Tomohiro Takahashi
  • Publication number: 20200338893
    Abstract: The object of the present disclosure is to optimize the time necessary for filling and the ink consumption. One embodiment of the present disclosure is a printing apparatus having: a storage unit; a print head having an ejection port from which ink supplied from the storage unit is ejected; an ink supply path that connects the storage unit and the print head; a suction unit configured to perform suction at the ejection port; and a supply control unit configured to supply ink stored in the storage unit to the ink supply path and the print head by performing suction at the ejection port by the suction unit, and the printing apparatus has an acquisition unit configured to acquire information relating to ink discharge from the ink supply path and the supply control unit determines the number of times of suction by the suction unit based on the information.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Inventors: Kazuki Narumi, Masataka Kato, Toshimitsu Danzuka, Yasunori Fujimoto, Shin Genta, Tomoki Yamamuro, Hiroto Kango, Kazuhiko Sato, Kazuo Suzuki
  • Publication number: 20200307283
    Abstract: Images with high image quality having less time-difference unevenness are outputted in an inkjet printing apparatus that performs multi-pass printing using full-line inkjet print heads 2. For this purpose, a CPU is capable of setting a first printing method in which an image for a unit area is printed by a specified number of printing conveyance operations and a second printing method in which an image for a unit area is printed by a smaller number than the specified number of printing conveyance operations. The CPU sets conveyance conditions such that a taken time for one printing conveyance operation of the printing conveyance operations for a unit area in the second printing method is smaller than a taken time for one successive printing conveyance operation of the printing conveyance operations for a unit area in the first printing method.
    Type: Application
    Filed: March 19, 2020
    Publication date: October 1, 2020
    Inventors: Shingo Nishioka, Sae Mogi, Satoshi Azuma, Kazuhiko Sato, Shin Genta, Mitsutoshi Nagamura, Masataka Kato, Yoshinori Nakajima, Kazuo Suzuki
  • Patent number: 10696048
    Abstract: A method of manufacturing an inkjet head substrate is provided. The inkjet head substrate includes an ink supply port having a through portion and a non-through portion, and the non-through portion is disposed at a position closer than the through portion to the energy generating element. The method includes disposing a mask having an opening that has a relatively large opening-width portion and a relatively small opening-width portion. The method also includes forming the through portion in the substrate at a position corresponding to the relatively large opening-width portion and the non-through portion in the substrate at a position corresponding to the relatively small opening-width portion by performing reactive ion etching on the substrate through the opening of the mask in one operation.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: June 30, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Kamimura, Masataka Kato, Hiroshi Higuchi, Atsunori Terasaki, Shuichi Tamatsukuri
  • Publication number: 20200198350
    Abstract: A liquid ejection head has on one surface of a substrate a liquid flow path having an ejection orifice and a liquid generating energy generating element while the element is protected against liquid by an insulating layer formed on the surface. The liquid ejection head further has a liquid inflow path and a liquid outflow path each running through the substrate and the insulating layer to circulate liquid. The liquid inflow path and the liquid outflow path each have a first opening on the surface of the substrate and a second opening on the surface of the insulating layer and for each of the liquid inflow and outflow paths, the end on the ejection orifice side of the second opening is located closer to the ejection orifice than the end on the ejection orifice side of the first opening.
    Type: Application
    Filed: December 23, 2019
    Publication date: June 25, 2020
    Inventor: Masataka Kato
  • Publication number: 20200198352
    Abstract: Provided is a liquid ejection head including: an ejection orifice for ejecting a liquid; a substrate in which an energy-generating element and an insulating layer are formed on a first surface; a liquid inflow path which penetrates the substrate and makes a liquid flow in a flow path disposed between the ejection orifice and the element; and a liquid outflow path which penetrates the substrate and makes the liquid flow out of the flow path, in which the liquid inflow path and the liquid outflow path have a first opening and a second opening penetrating the insulating layer on the first surface of the substrate, the ejection orifice is disposed between the liquid inflow path and the liquid outflow path, and an end of the second opening on an ejection orifice side is formed closer to the ejection orifice side than an end of the first opening.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventor: Masataka Kato
  • Patent number: 10668717
    Abstract: An object of the present invention is to quickly correct a temperature sensor for an ejection head by, both efficiently and in a brief time, estimating a detected temperature of the temperature sensor for the ejection head in a case where the temperature of the ejection head of liquid becomes sufficiently close to an environment temperature. The temperature of a print head 1 is detected by a diode sensor 17 and the environment temperature is detected by a thermistor 10. Based on a change in the detected temperature of the diode sensor 17 at the time of filling of ink for the print head 1, the detected temperature of the diode sensor 17 in a case where the temperature of the print head 1 becomes close to the environment temperature is estimated as an estimated detected temperature. Based on a difference between the estimated detected temperature and the environment temperature, a correction value of the detected temperature of the diode sensor 17 is set.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 2, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Satoshi Azuma, Kazuhiko Sato, Kazuo Suzuki, Yoshinori Nakajima, Masataka Kato, Mitsutoshi Nagamura, Shin Genta, Shingo Nishioka, Sae Tabuchi
  • Publication number: 20200164664
    Abstract: A recording apparatus discharges an ink in a first color to a position at which an accumulated state on an ink absorber is to be detected. After that, a light is emitted onto the position from a light emitting unit, and reflected light is received by a light receiving unit.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 28, 2020
    Inventors: Tomoki Yamamuro, Toshimitsu Danzuka, Yasunori Fujimoto, Masataka Kato, Kazuki Narumi, Shin Genta, Kazuhiko Sato, Kazuo Suzuki, Hiroto Kango
  • Publication number: 20200122464
    Abstract: A liquid ejection head includes a recording element substrate including an ejection port member including a liquid ejection port, an electrical wiring layer including a pressure generating element that pressurizes the liquid to eject the liquid and an electrically connecting part connected to the pressure generating element to supply power for driving the pressure generating element to the pressure generating element, and a silicon substrate having the ejection port member and the electrical wiring layer. The silicon substrate includes a through-hole passing through the silicon substrate to expose the electrically connecting part. An outer shape of an opening of the through-hole on the back side of the silicon substrate has no side parallel to direction [110] of the silicon substrate or has a side parallel to the direction [110]. The side has a length equal to or less than half an entire length of the through-hole in the direction [110].
    Type: Application
    Filed: October 3, 2019
    Publication date: April 23, 2020
    Inventor: Masataka Kato
  • Publication number: 20200101759
    Abstract: A liquid ejection head is provided with a recording element substrate, and the recording element substrate includes an ejection port member, an electric wiring layer including a pressure generating element array and electric connection portions, and a silicon substrate including the ejection port member and the electric wiring layer on a front surface. The silicon substrate includes a first through hole and a second through hole that protrude the electric connection portions. The rear surface of the silicon substrate is a (100) surface. An extension line of a side extending along the [110] direction, out of sides of the opening of the first trough hole and an extension line of a side extending along the [110] direction, out of sides of the opening of the second through hole are displaced from each other in a direction orthogonal to the [110] direction.
    Type: Application
    Filed: September 17, 2019
    Publication date: April 2, 2020
    Inventors: Masataka Kato, Takuya Hatsui, Souta Takeuchi, Masaya Uyama, Toru Nakakubo, Tomohiro Takahashi
  • Patent number: 10583656
    Abstract: A liquid discharge head includes a substrate that is provided with a supply passage having an opening; an energy generating element that is disposed on a surface of the substrate; an electric wiring layer; an insulation layer; and a discharge port member that forms a discharge port. The insulation layer has an end portion adjacent to the opening of the supply passage and set back from an edge of the opening of the supply passage toward a side where the energy generating element is disposed. The electric wiring layer includes a plurality of electric wiring layers layered on each other.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: March 10, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masataka Kato, Toshiyasu Sakai, Atsunori Terasaki, Takayuki Kamimura, Shuichi Tamatsukuri, Hiroshi Higuchi
  • Publication number: 20200001605
    Abstract: A semiconductor element includes an insulation layer and a pad portion for electrical connection to an external portion by wire bonding. The insulation layer includes a plurality of projections projecting from a main surface of the insulation layer. The pad portion is disposed on an upper surface of each of the projections without extending beyond the upper surface of the projection on which the pad portion is formed.
    Type: Application
    Filed: June 25, 2019
    Publication date: January 2, 2020
    Inventors: Masaya Uyama, Takuya Hatsui, Souta Takeuchi, Masataka Kato, Toru Nakakubo, Tomohiro Takahashi
  • Publication number: 20200001604
    Abstract: A liquid ejection head includes an ejection port member that includes an ejection port that ejects a liquid, an energy generating element that generates energy for ejecting the liquid from the ejection port, a terminal electrically connected to the energy generating element, and a substrate portion that supports the ejection port member, the energy generating element, and the terminal. The terminal is connected to a wire member that supplies electric power that drives the energy generating element to the energy generating element, the substrate portion includes a hole portion formed from a surface of the substrate portion on a side opposite to a surface of the substrate portion on which the terminal is provided to a surface where the terminal is exposed, and an area of the surface where the terminal is exposed is smaller than an area of an opening of the hole portion.
    Type: Application
    Filed: June 25, 2019
    Publication date: January 2, 2020
    Inventors: Souta Takeuchi, Takuya Hatsui, Masataka Kato, Masaya Uyama, Toru Nakakubo, Tomohiro Takahashi
  • Patent number: 10518531
    Abstract: Provided is a liquid ejection head substrate, in which a plurality of units are arranged. Each of the units includes: a pressure generating element formed on a first surface of a support substrate; and a pair of independent liquid chambers, which are formed on both sides of the pressure generating element so as to be opposed to each other, and are opened to the first surface of the support substrate. The liquid ejection head substrate includes, in the support substrate: a first common liquid chamber communicating to a plurality of independent liquid chambers on one side of the pair of independent liquid chambers; a second common liquid chamber communicating to a plurality of independent liquid chambers on another side of the pair of independent liquid chambers; and a partition wall separating the first common liquid chamber and the second common liquid chamber from each other.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: December 31, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hiroshi Higuchi, Toshiyasu Sakai, Masataka Kato, Takayuki Kamimura
  • Publication number: 20190366713
    Abstract: A liquid ejection head including an element substrate including an ejection port, an energy generating element generating energy to eject a liquid from the ejection port, and a terminal electrically connected to the energy generating element, and an electric connection member connected to the terminal and that supplies electric power to the energy generating element. The element substrate includes a hole portion drilled from a surface of the element substrate opposite a surface of the element substrate in which the ejection port is provided to the terminal. A sealing member is provided inside the hole portion, the sealing member covering a connection portion. The liquid ejection head further includes a fixing member in contact with the surface of the element substrate in which the ejection port is formed, the fixing member being provided at a position corresponding to the hole portion.
    Type: Application
    Filed: May 24, 2019
    Publication date: December 5, 2019
    Inventors: Takuya Hatsui, Souta Takeuchi, Masataka Kato, Masaya Uyama, Toru Nakakubo, Tomohiro Takahashi