Patents by Inventor Hirotaka Miyazaki

Hirotaka Miyazaki 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: 11367669
    Abstract: A power module (PM) includes: an insulating substrate; a semiconductor device disposed on the insulating substrate, the semiconductor device including electrodes on a front surface side and a back surface side thereof; and a graphite plate having an anisotropic thermal conductivity, the graphite plate of which one end is connected to the front surface side of the semiconductor device and the other end is connected to the insulating substrate, wherein heat of the front surface side of the semiconductor device is transferred to the insulating substrate through the graphite plate. There is provide an inexpensive power module capable of reducing a stress and capable of exhibiting cooling performance not inferior to that of the double-sided cooling structures.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: June 21, 2022
    Assignee: ROHM CO., LTD.
    Inventors: Maiko Hatano, Takukazu Otsuka, Hirotaka Otake, Tatsuya Miyazaki
  • Patent number: 10029466
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: July 24, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Miyazaki
  • Publication number: 20180117815
    Abstract: A method for continuously manufacturing molded products by repeating a plurality of molding cycles includes, in each molding cycle, filling a resin composition into a mold, pressing the resin composition in the mold, cooling the resin composition in the mold using cooling water, and releasing the resin composition from an interior of the mold to obtain a molded product. An A-th molding cycle of the plurality of molding cycles can be a delay cycle delayed from a B-th molding cycle. When the A-th cycle is the delay cycle, the flow rate of the cooling water flowing in the mold at the cooling step is decreased in the A-th cycle as compared with the B-th cycle.
    Type: Application
    Filed: October 25, 2017
    Publication date: May 3, 2018
    Inventor: Hirotaka Miyazaki
  • Patent number: 9802410
    Abstract: A method of manufacturing an ink jet print head capable of bonding the printing element substrate to the support surface with high precision in a reduced period of time is provided. For this purpose, raised flat portions are formed in the support surface of the supporting member to provide in an adhesive layer between the printing element substrate and the supporting member a portion of the thermosetting adhesive that is thinner than others. After the relative positions of the printing element substrate and the supporting member are adjusted, the thin portions of the adhesive layer are hardened. This enables the printing element substrate to be bonded to the supporting member in a relatively short period of time. As a result, if there are undulations on the support surface, the printing element substrate can be bonded to the supporting member with high precision, improving the mass productivity of the print head.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: October 31, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Miyazaki
  • Patent number: 9782970
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: October 10, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Miyazaki
  • Publication number: 20160152029
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Inventor: Hirotaka Miyazaki
  • Patent number: 9283761
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: March 15, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Miyazaki
  • Patent number: 9193154
    Abstract: A liquid ejection head includes a recording element substrate having an ejection port, a support member having a recessed portion and supporting the recording element substrate by a bottom portion of the recessed portion, wiring electrically connected to the recording element substrate and extending between the recording element substrate and a side surface of the recessed portion, a sealant with which the wiring is covered, and a passage formed in the support member and allowing a first region where the sealant is placed and a second region different from the sealed region to communicate with each other.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: November 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyosuke Toda, Hirotaka Miyazaki, Hiromasa Amma
  • Publication number: 20150059148
    Abstract: In a case where a liquid holding member is inserted into a storage section to produce a liquid storage container, the occurrence of a wrinkle or a partial separation in the liquid holding member can be suppressed. More specifically, a plurality of compressing needles are stuck into an ink holding member before insertion and moved in directions shown by arrows to compress the ink holding member. The ink holding member in a compressed state is inserted without coming into contact with a wall surface of an ink storage section. This can prevent the ink holding member from coming into contact with an inner wall of the storage container or the like during the insertion of the ink holding member into the storage container and can prevent the occurrence of a wrinkle or a partial separation in the ink holding member.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Inventors: Masatoshi Ohira, Hirotaka Miyazaki, Toshiaki Kaneko, Satoshi Shimazu, Hiroyuki Yamamoto
  • Patent number: 8950072
    Abstract: A method of manufacturing a liquid ejection head, which includes: preparing a liquid ejection head which includes: a recording element board provided with an ejection port through which liquid is ejected and an energy generator; an electrical wiring member provided with an opening from which the recording element board is exposed; and plural electrical connecting portions for electrically connecting the recording element board and the electrical wiring member relatively moving a discharge member, which is for dropping a sealing agent, toward one end of an arrangement of the electrical connecting portions while dropping the sealing agent onto the electrical wiring member and inside the opening; and relatively moving the discharge member from the one end of the electrical connecting portions to the other end while dropping the sealing agent to seal the electrical connecting portion.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: February 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiaki Kaneko, Satoshi Kodama, Hirotaka Miyazaki, Satoshi Shimazu, Naoya Tsukamoto
  • Publication number: 20140307027
    Abstract: A liquid ejection head includes a recording element substrate having an ejection port, a support member having a recessed portion, and supporting the recording element substrate by a bottom portion of the recessed portion, wiring electrically connected to the recording element substrate and extending between the recording element substrate and a side surface of the recessed portion, a sealant with which the wiring is covered, and a passage formed in the support member, and allowing a first region where the sealant is placed, and a second region different from the sealed region to communicate with each other.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 16, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kyosuke Toda, Hirotaka Miyazaki, Hiromasa Amma
  • Publication number: 20140227808
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hirotaka Miyazaki
  • Patent number: 8789928
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: July 29, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Miyazaki
  • Patent number: 8740356
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: June 3, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Hirotaka Miyazaki
  • Patent number: 8562109
    Abstract: A liquid ejection head includes a recording element substrate having a member with a liquid ejection orifice, and a substrate having an energy-generating element for ejecting the liquid; a wiring substrate including wirings connected to terminals that are formed along an end portion side of a surface of the substrate where the element is formed and are electrically connected to the element; and a support member including a support supporting the recording element substrate through adhesive, a groove formed along the support and a wiring support supporting the wiring substrate. A sealing material is applied to a connection portion between the terminals and wirings and is applied to a bottom surface of the groove formed on an end portion side of the surface where no terminal is formed. A part of a side of the substrate corresponding to the end portion side is exposed without being covered with the sealing material.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: October 22, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirotaka Miyazaki, Toshiaki Kaneko
  • Patent number: 8550599
    Abstract: A process for producing a liquid ejection head including a recording element substrate, an electrical wiring substrate provided with plural lead terminals, a support member provided with a concavity and a joining surface, and a sealant control wall arranged between a side surface of the recording element substrate and a side surface of the support member, the process including preparing a liquid ejection head in which the concavity and recording element substrate are mutually fixed, the joining surface and electrical wiring substrate are mutually fixed, and the lead terminals and connection terminal are mutually connected, and filling the sealant between the side surface of the recording element substrate and the side surface of the sealant control wall on the side of the recording element substrate followed by filling the sealant between a side surface of the sealant control wall on the side of the lead terminals and the lead terminals.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: October 8, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirotaka Miyazaki, Toshiaki Kaneko, Satoshi Kodama
  • Patent number: 8529035
    Abstract: The ink jet cartridge includes a tank case that has a space having a opening, a lid that closes the opening, an ink accommodating section that is formed with the space of the tank case and the lid, and an ink absorber that is accommodated in the ink accommodating section. Also, an atmosphere communication port that passes through the lid and a projection section that projects to the space of the tank case are provided in the lid. The ink absorber consists of a fiber aggregate, and a welding section in which the fibers are combined to each other and an unwelded section in which the fibers are not combined to each other are provided on a surface that faces the lid.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoya Tsukamoto, Hiroyuki Yamamoto, Jun Hinami, Takeshi Shibata, Hirotaka Miyazaki, Yoshiaki Kurihara, Ryo Shimamura, Tomohiro Takahashi, Tatsunori Fujii, Masashi Ishikawa
  • Publication number: 20120325772
    Abstract: An ink-jet recording head includes a plurality of recording element substrates each having an ejection pressure generating element configured to generate pressure for ejecting ink from an ink discharge port. The plurality of recording element substrates each include a first surface on which the corresponding ejection pressure generating element is disposed and a second surface, serving as an end surface intersecting with the first surface, being at least partially formed by etching.
    Type: Application
    Filed: September 5, 2012
    Publication date: December 27, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hirotaka Miyazaki
  • Publication number: 20120305680
    Abstract: A method of manufacturing a liquid ejection head, which includes: preparing a liquid ejection head which includes: a recording element board provided with an ejection port through which liquid is ejected and an energy generator; an electrical wiring member provided with an opening from which the recording element board is exposed; and plural electrical connecting portions for electrically connecting the recording element board and the electrical wiring member relatively moving a discharge member, which is for dropping a sealing agent, toward one end of an arrangement of the electrical connecting portions while dropping the sealing agent onto the electrical wiring member and inside the opening; and relatively moving the discharge member from the one end of the electrical connecting portions to the other end while dropping the sealing agent to seal the electrical connecting portion.
    Type: Application
    Filed: June 1, 2012
    Publication date: December 6, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toshiaki Kaneko, Satoshi Kodama, Hirotaka Miyazaki, Satoshi Shimazu, Naoya Tsukamoto
  • Publication number: 20120287205
    Abstract: A method of manufacturing an ink jet print head capable of bonding the printing element substrate to the support surface with high precision in a reduced period of time is provided. For this purpose, raised flat portions are formed in the support surface of the supporting member to provide in an adhesive layer between the printing element substrate and the supporting member a portion of the thermosetting adhesive that is thinner than others. After the relative positions of the printing element substrate and the supporting member are adjusted, the thin portions of the adhesive layer are hardened. This enables the printing element substrate to be bonded to the supporting member in a relatively short period of time. As a result, if there are undulations on the support surface, the printing element substrate can be bonded to the supporting member with high precision, improving the mass productivity of the print head.
    Type: Application
    Filed: July 24, 2012
    Publication date: November 15, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Hirotaka MIYAZAKI