Patents by Inventor Makoto Sakurai

Makoto Sakurai 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: 11137594
    Abstract: There is provided an irradiation apparatus 1 including a laser light source 6, a light deflector 7, and a control unit 8. The light deflector 7 has a piezoelectric actuator 74 that include a plurality of piezoelectric cantilevers 79 in a meandering pattern arrangement. In the control unit 8, the driving voltage control unit 14 stops supplying a driving voltage to some piezoelectric cantilevers 79 when a designated drawing area designated by the drawing area designating unit 15 is an upper drawing area Fu and a lower drawing area Fd that are partial drawing areas.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: October 5, 2021
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Makoto Sakurai, Mamoru Miyachi
  • Patent number: 11078636
    Abstract: A display device displays displacement of a bridge serving as a structure on a display part in the form of image information that is visually recognizable, based on a displacement amount of the bridge, the displacement amount having been calculated based on an output signal output from an acceleration detector serving as a physical quantity sensor provided on the bridge.
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: August 3, 2021
    Inventors: Hiroshi Okamoto, Kazuyoshi Takeda, Makoto Sakurai, Hidehiko Sekiya, Chitoshi Miki
  • Patent number: 10558033
    Abstract: A light deflector 1 includes a reflector (2), inner piezoelectric actuators (4), an inner frame (5), outer piezoelectric actuators (6), and an outer frame (7). The reflector (2) is oscillated about a first axis Ua and a second axis Ub by the inner piezoelectric actuators (4) and the outer piezoelectric actuators (6), respectively. Formed on the rear surface of the light deflector 1 is a projecting rib (52), which projects from an encircling rib (51) of the inner frame (5) and reaches a corner portion (36) of a distal end portion of a piezoelectric cantilever (13a). A vertical side (22b) has an outer recess (35). The outer recess (35) extends along the projecting rib (52) in a portion of the distal end side of the piezoelectric cantilever (13a).
    Type: Grant
    Filed: February 17, 2019
    Date of Patent: February 11, 2020
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Makoto Sakurai, Takaaki Koyama, Tomotaka Asari
  • Publication number: 20200026067
    Abstract: There is provided an irradiation apparatus 1 including a laser light source 6, a light deflector 7, and a control unit 8. The light deflector 7 has a piezoelectric actuator 74 that include a plurality of piezoelectric cantilevers 79 in a meandering pattern arrangement. In the control unit 8, the driving voltage control unit 14 stops supplying a driving voltage to some piezoelectric cantilevers 79 when a designated drawing area designated by the drawing area designating unit 15 is an upper drawing area Fu and a lower drawing area Fd that are partial drawing areas.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 23, 2020
    Inventors: Makoto Sakurai, Mamoru Miyachi
  • Publication number: 20190376243
    Abstract: A display device displays displacement of a bridge serving as a structure on a display part in the form of image information that is visually recognizable, based on a displacement amount of the bridge, the displacement amount having been calculated based on an output signal output from an acceleration detector serving as a physical quantity sensor provided on the bridge.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 12, 2019
    Inventors: Hiroshi OKAMOTO, Kazuyoshi TAKEDA, Makoto SAKURAI, Hidehiko SEKIYA, Chitoshi MIKI
  • Publication number: 20190258049
    Abstract: A light deflector 1 includes a reflector (2), inner piezoelectric actuators (4), an inner frame (5), outer piezoelectric actuators (6), and an outer frame (7). The reflector (2) is oscillated about a first axis Ua and a second axis Ub by the inner piezoelectric actuators (4) and the outer piezoelectric actuators (6), respectively. Formed on the rear surface of the light deflector 1 is a projecting rib (52), which projects from an encircling rib (51) of the inner frame (5) and reaches a corner portion (36) of a distal end portion of a piezoelectric cantilever (13a). A vertical side (22b) has an outer recess (35). The outer recess (35) extends along the projecting rib (52) in a portion of the distal end side of the piezoelectric cantilever (13a).
    Type: Application
    Filed: February 17, 2019
    Publication date: August 22, 2019
    Applicant: STANLEY ELECTRIC CO., LTD.
    Inventors: Makoto SAKURAI, Takaaki KOYAMA, Tomotaka ASARI
  • Patent number: 10040285
    Abstract: A liquid ejection head, including: a flow path forming member including a resin layer having an ejection orifice and a flow path formed therein; a substrate including a heat-generating resistance element for ejecting liquid and a protective layer having a portion for covering the heat-generating resistance element, a surface of the portion being exposed to the flow path; and an intermediate layer formed between the resin layer and the protective layer, the intermediate layer including a silicon carbonitride material.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: August 7, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaki Oikawa, Yoshihiro Hamada, Takuya Hatsui, Makoto Sakurai, Takeru Yasuda
  • Patent number: 9914298
    Abstract: A liquid ejection head comprises a semiconductor substrate having an energy generating element arranged thereon to generate energy to be utilized to eject liquid and a laminate including a plurality of insulating layers laid sequentially in the depth direction of the semiconductor substrate. Wiring is formed in the laminate and electrically connected to the energy generating element. The wiring includes a via formed in the insulating layers in the thickness direction of the insulating layers. The energy generating element is arranged between the semiconductor substrate and the laminate in the laminating direction of the insulating layers.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: March 13, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Sakurai, Masaya Uyama
  • Publication number: 20170122775
    Abstract: A motion detecting device includes an electronic component (a sensor) including a sensor section that detects motion on the basis of a detection result of an electronic device functioning as a detection element that detects magnetism and a holding tool attached to a golf club functioning as a moving body, the holding tool including fitting sections functioning as a fixing section that fixes the electronic component (the sensor). A magnetic body is provided in the holding tool.
    Type: Application
    Filed: October 13, 2016
    Publication date: May 4, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Yuya ISHIKAWA, Makoto SAKURAI
  • Patent number: 9623655
    Abstract: A method for manufacturing a liquid discharge head that includes a discharge-port-forming member, which has discharge ports through which a liquid is discharged, and a pressure-chamber-forming member, which includes pressure chambers communicating with the discharge ports and each including a heating resistor formed in a bottom portion thereof and which has a surface joined to the discharge-port-forming member, includes preparing the pressure-chamber-forming member in which wiring layers each including a barrier metal as a base member are formed, forming the pressure chambers, whose depths from the surface are different from each other and which include the heating resistors each formed of one of the barrier metals, by recessing the pressure-chamber-forming member from the surface and removing at least two of the wiring layers, which are formed at different positions in a depth direction from the surface, to expose the corresponding barrier metals, and forming the discharge-port-forming member on the surface.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: April 18, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaya Uyama, Makoto Sakurai, Makoto Terui
  • Publication number: 20170057228
    Abstract: A liquid ejection head, including: a flow path forming member including a resin layer having an ejection orifice and a flow path formed therein; a substrate including a heat-generating resistance element for ejecting liquid and a protective layer having a portion for covering the heat-generating resistance element, a surface of the portion being exposed to the flow path; and an intermediate layer formed between the resin layer and the protective layer, the intermediate layer including a silicon carbonitride material.
    Type: Application
    Filed: August 5, 2016
    Publication date: March 2, 2017
    Inventors: Masaki Oikawa, Yoshihiro Hamada, Takuya Hatsui, Makoto Sakurai, Takeru Yasuda
  • Publication number: 20160297194
    Abstract: A liquid ejection head comprises a semiconductor substrate having an energy generating element arranged thereon to generate energy to be utilized to eject liquid and a laminate including a plurality of insulating layers laid sequentially in the depth direction of the semiconductor substrate. Wiring is formed in the laminate and electrically connected to the energy generating element. The wiring includes a via formed in the insulating layers in the thickness direction of the insulating layers. The energy generating element is arranged between the semiconductor substrate and the laminate in the laminating direction of the insulating layers.
    Type: Application
    Filed: March 8, 2016
    Publication date: October 13, 2016
    Inventors: Makoto Sakurai, Masaya Uyama
  • Patent number: 9427953
    Abstract: A method of manufacturing a liquid ejection head includes forming, on the substrate, a metal layer formed of a first metal, forming a liquid flow path pattern formed of a second metal that is a metal of a different kind from that of the first metal and that is dissolvable in a solution that does not dissolve the first metal, the liquid flow path pattern being formed on at least a part of a surface of the metal layer, covering the metal layer and the pattern with an inorganic material layer to be formed as the nozzle layer, forming the ejection orifices in the inorganic material layer, and removing the pattern by the solution. A standard electrode potential E1 of the first metal and a standard electrode potential E2 of the second metal have a relationship of E1>E2.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: August 30, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazuaki Shibata, Makoto Sakurai, Yuzuru Ishida, Sadayoshi Sakuma
  • Patent number: 9421765
    Abstract: In a method of manufacturing a liquid discharging head which includes a flow path forming member which has a discharge port for discharging a liquid and a liquid flow path communicating with the discharge port, and a base body having a liquid supply port which supplies the liquid flow path with the liquid, the method includes (1) forming a mold of the liquid flow path and a foundation member formed of a porous inorganic material over the base body, (2) applying an organic resin over the base body so as to cover the mold and the foundation member to form the flow path forming member, (3) forming the discharge port in the flow path forming member to form the liquid supply port in the base body, and (4) removing the mold to form the liquid flow path.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: August 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Saito, Makoto Sakurai, Takahiro Matsui, Yuzuru Ishida
  • Publication number: 20160152027
    Abstract: A method for manufacturing a liquid discharge head that includes a discharge-port-forming member, which has discharge ports through which a liquid is discharged, and a pressure-chamber-forming member, which includes pressure chambers communicating with the discharge ports and each including a heating resistor formed in a bottom portion thereof and which has a surface joined to the discharge-port-forming member, includes preparing the pressure-chamber-forming member in which wiring layers each including a barrier metal as a base member are formed, forming the pressure chambers, whose depths from the surface are different from each other and which include the heating resistors each formed of one of the barrier metals, by recessing the pressure-chamber-forming member from the surface and removing at least two of the wiring layers, which are formed at different positions in a depth direction from the surface, to expose the corresponding barrier metals, and forming the discharge-port-forming member on the surface.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Inventors: Masaya Uyama, Makoto Sakurai, Makoto Terui
  • Patent number: 9333746
    Abstract: An ink jet recording head substrate is provided which includes a base substrate, a heat accumulation layer overlying the base substrate, a heating resistor layer including an electrothermal conversion portion and overlying the heat accumulation layer, a wiring layer electrically connected to the heating resistor layer, and an insulating protective layer covering the heating resistor layer and the wiring layer. The heat accumulation layer includes a porous cyclic siloxane film.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: May 10, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Soichiro Nagamochi, Shuichi Tamatsukuri, Souta Takeuchi, Kenji Takahashi, Sadayoshi Sakuma, Hirokazu Komuro, Makoto Sakurai, Yuzuru Ishida, Takeru Yasuda
  • Patent number: 9327499
    Abstract: A liquid ejection head includes an ejection port for ejecting liquid, a liquid chamber communicating with the ejection port, and a substrate having a heat generating resistor arranged in the liquid chamber at a position corresponding to the ejection port and a bubble detecting device arranged on the heat generating resistor for controlling driving of the heat generating resistor by detecting a bubble produced by the heat generated by the heat generating resistor. The bubble detecting device has two electrodes arranged in the liquid chamber and, as viewed in the direction perpendicular to the substrate, one of the two electrodes is arranged at a position overlapping the heat generating resistor whereas the other one of the two electrodes is arranged at a position not overlapping the heat generating resistor.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: May 3, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Makoto Sakurai, Nobuyuki Hirayama
  • Patent number: 9266331
    Abstract: Provided is a method for manufacturing a substrate for liquid ejection head including an ejection energy generating element and a nozzle layer including an ejection port and a liquid channel. The method includes the steps of: forming, on the substrate including the element, a metal mold member made of metal and having a flat surface, the metal mold member making up at least a part of a mold for the liquid channel, and a planarization layer made of the metal and having a flat surface to planarize a surface of the nozzle layer; coating the mold for the liquid channel and the planarization layer with negative-type photosensitive resin, thus forming a negative-type photosensitive resin layer to be the nozzle layer; exposing the resin layer to ultraviolet rays, thus forming the ejection port; and selectively removing the mold for the liquid channel, thus forming the liquid channel.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: February 23, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sadayoshi Sakuma, Hirokazu Komuro, Yuzuru Ishida, Kazuaki Shibata, Makoto Sakurai
  • Publication number: 20160009088
    Abstract: An ink jet recording head substrate is provided which includes a base substrate, a heat accumulation layer overlying the base substrate, a heating resistor layer including an electrothermal conversion portion and overlying the heat accumulation layer, a wiring layer electrically connected to the heating resistor layer, and an insulating protective layer covering the heating resistor layer and the wiring layer. The heat accumulation layer includes a porous cyclic siloxane film.
    Type: Application
    Filed: July 1, 2015
    Publication date: January 14, 2016
    Inventors: Soichiro Nagamochi, Shuichi Tamatsukuri, Souta Takeuchi, Kenji Takahashi, Sadayoshi Sakuma, Hirokazu Komuro, Makoto Sakurai, Yuzuru Ishida, Takeru Yasuda
  • Patent number: 9216575
    Abstract: A recording-element substrate includes an ejection port configured to eject liquid; a heating resistance element configured to generate thermal energy for ejecting the liquid from the ejection port; and a drive circuit configured to drive the heating resistance element. The heating resistance element includes a heating resistor layer and three pairs of electrodes provided for the heating resistor layer. The drive circuit forms a heating area that generates thermal energy in the heating resistor layer by selectively using two or more of the electrodes.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: December 22, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Tamatsukuri, Makoto Sakurai, Sadayoshi Sakuma, Masaya Uyama