Patents by Inventor Tatsuo Furuta

Tatsuo Furuta 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: 10451833
    Abstract: A vibrator and an ultrasonic motor can exhibit a sufficient drive speed even when using lead-free piezoelectric ceramics. The ultrasonic motor includes an annular vibrator and an annular moving member arranged so as to be brought into pressure-contact with the vibrator. The vibrator includes an annular vibrating plate and an annular piezoelectric element. The piezoelectric element includes an annular piezoelectric ceramic piece, a common electrode arranged on one surface of the piezoelectric ceramic piece, and a plurality of electrodes arranged on the other surface of the piezoelectric ceramic piece. The piezoelectric ceramic piece contains lead in a content of less than 1,000 ppm. The plurality of electrodes include two drive phase electrodes, at least one non-drive phase electrode, and at least one detection phase electrode.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: October 22, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jumpei Hayashi, Akira Uebayashi, Tatsuo Furuta, Hidenori Tanaka, Shinya Koyama, Makoto Kubota
  • Patent number: 10424721
    Abstract: A lead-free piezoelectric element that stably operates in a wide operating temperature range contains a lead-free piezoelectric material. The piezoelectric element includes a first electrode, a second electrode, and a piezoelectric material that includes a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (1.00?a?1.01, 0.02?x?0.30, 0.020?y?0.095, and y?x) as a main component and manganese incorporated in the perovskite-type metal oxide. The manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.02 parts by weight or more and 0.40 parts by weight or less on a metal basis.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: September 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jumpei Hayashi, Kenichi Takeda, Shinya Koyama, Kenichi Akashi, Tatsuo Furuta
  • Publication number: 20190245135
    Abstract: Provided is a piezoelectric ceramics having a gradual change in piezoelectric constant depending on an ambient temperature. Specifically, provided is a single-piece piezoelectric ceramics including as a main component a perovskite-type metal oxide represented by a compositional formula of ABO3, wherein an A site element in the compositional formula contains Ba and M1, the M1 being formed of at least one kind selected from the group consisting of Ca and Bi, wherein a B site element in the compositional formula contains Ti and M2, the M2 being formed of at least one kind selected from the group consisting of Zr, Sn, and Hf, wherein concentrations of the M1 and the M2 change in at least one direction of the piezoelectric ceramics, and wherein increase and decrease directions of concentration changes of the M1 and the M2 are directions opposite to each other.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 8, 2019
    Inventors: Makoto Kubota, Yasushi Shimizu, Takanori Matsuda, Tatsuo Furuta, Kaoru Miura, Miki Ueda, Kanako Oshima
  • Patent number: 10352573
    Abstract: A mount unit for mounting a decorative panel on an underside of an air-conditioning apparatus main body includes a decorative panel mount fitting having a screw engagement hole that communicates with the screw insertion hole of the decorative panel and a claw that is fitted into the claw engagement hole formed on each side of the screw insertion hole of the decorative panel and a decorative panel mount screw, and is configured to be held by the decorative panel without being dropped off when the claw is fitted into the claw engagement hole and the decorative panel mount screw is engaged with the screw engagement hole with a head being oriented downward, and the decorative panel is mounted on the air-conditioning apparatus main body when the decorative panel mount screw held on the decorative panel is screwed into the screw fastening hole of the air-conditioning apparatus main body via the screw insertion hole.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: July 16, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Hatakeyama, Masaaki Maruyama, Takaaki Takishita, Naoya Matsunaga, Tatsuo Furuta
  • Publication number: 20190210363
    Abstract: Provided is a recording device that performs recording on a recording medium by repeating a pass operation of discharging ink from a recording head onto the recording medium during a main scanning operation of moving the recording head in a main scanning direction, and a sub-scanning operation of moving the recording medium relative to the recording head in a sub-scanning direction intersecting with the main scanning direction. An electronic controller stops the main scanning unit for a predetermined stop time determined based on a gap that is a distance between a head surface of the recording head and a recording surface of the recording medium supported by a support unit, prior to the pass operation.
    Type: Application
    Filed: January 8, 2019
    Publication date: July 11, 2019
    Inventors: Eiichi OHARA, Tatsuo FURUTA
  • Patent number: 10302313
    Abstract: An indoor unit includes: a casing including a top plate and lateral plates; a motor mounted to a central part on an inner surface side of the top plate; a turbofan fixed to a rotary shaft of the motor and configured to rotate through drive of the motor; a drain pan received in the casing and mounted to the lateral plates of the casing; and a bellmouth mounted to the drain pan and configured to rectify a fluid flowing into the casing. The drain pan includes a positioning fitting having: a casing-fixing threaded hole for allowing the drain pan to be fixed to the casing with a screw; and a bellmouth-fixing threaded hole for allowing the bellmouth to be fixed to the drain pan with a screw.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: May 28, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Naoya Matsunaga, Takaaki Takishita, Tatsuo Furuta, Takahiro Komatsu
  • Publication number: 20190140558
    Abstract: A vibration wave motor includes a driven body, a vibrator including an annular vibration plate and an annular piezoelectric element, and a vibration damping member, which are arranged in sequence, wherein the vibration plate has, on a side facing the driven body, radially extending groove portions at X places, and, when center depths of the groove portions at X places are sequentially denoted by D1 to DX in a circumferential direction, D1 to DX vary along a curve obtained by superposing one or more sine waves, and wherein the vibration plate is locally supported by the vibration damping member in some or all antinode portions of a standing wave occurring when the vibration wave motor is driven.
    Type: Application
    Filed: October 30, 2018
    Publication date: May 9, 2019
    Inventors: Tatsuo Furuta, Akira Uebayashi, Tomohiro Watanabe, Shinya Koyama
  • Patent number: 10280119
    Abstract: A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact composed of an oxide powder containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact after the sintering. The sintering includes (A) increasing the temperature of the compact to a first temperature within a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a second temperature within a temperature range of a liquid phase sintering process of the compact after (A); (C) decreasing the temperature of the compact to a third temperature within the temperature range of the shrinking process of the compact after (B); and (D) retaining the third temperature after (C).
    Type: Grant
    Filed: December 30, 2016
    Date of Patent: May 7, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takanori Matsuda, Hiroshi Saito, Tatsuo Furuta, Jumpei Hayashi, Takayuki Watanabe, Toshihiro Ifuku
  • Publication number: 20190118550
    Abstract: Provided is a printing apparatus configured to execute printing by a print head including an overlapping portion where a formation range of a first nozzle group and a formation range of a second nozzle group configured to eject ink of a same color as the first nozzle group at least partially overlap, wherein the printing apparatus includes an HT processing unit configured to generate HT data specifying a presence or absence of dots for each pixel based on image data, and a distribution processing unit configured to distribute the HT data into first HT data for driving the first nozzle group, and second HT data for driving the second nozzle group.
    Type: Application
    Filed: October 18, 2018
    Publication date: April 25, 2019
    Inventor: Tatsuo FURUTA
  • Patent number: 10265954
    Abstract: After dot image data is created via a halftone process, dot size determination is performed in step S110, it is determined there is a smaller dot in front motion in step S112, and, when the smaller dot is to be allocated to a front nozzle line, a moving process is performed thereon in step S116. Once moved by one dot, the dot position of a smaller dot is allocated to a rear nozzle line and thus discharged from the rear nozzle line that is less affected by an air flow.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: April 23, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuo Furuta
  • Publication number: 20190115853
    Abstract: Provided is a method of manufacturing an oscillator, including: arranging an electrode on a piezoelectric ceramics free from being subjected to polarization treatment, to thereby provide a piezoelectric element; bonding the piezoelectric element and a diaphragm to each other at a temperature T1; bonding the piezoelectric element and a power supply member to each other at a temperature T2; and subjecting the piezoelectric ceramics to polarization treatment at a temperature T3, in which the temperature T1, the temperature T2, and the temperature T3 satisfy a relationship T1>T3 and a relationship T2>T3.
    Type: Application
    Filed: March 21, 2017
    Publication date: April 18, 2019
    Inventors: Jumpei Hayashi, Kenichi Takeda, Shinya Koyama, Takayuki Watanabe, Yasushi Shimizu, Tatsuo Furuta, Miki Ueda, Akira Uebayashi, Hidenori Tanaka, Makoto Kubota
  • Patent number: 10222090
    Abstract: An indoor unit for an air-conditioning apparatus and an air-conditioning apparatus that include levers of a decorative panel operated through insertion hole portions, and then move vertically in the insertion hole portions by the gravity, to thereby be temporarily hung on the hooks. The levers are kept holed on hooks. The indoor unit for an air-conditioning apparatus includes a casing, a decorative panel mounted on a lower surface side of the casing and having an air inlet formed therein, the levers mounted so as to be opposed to each other on opposed two sides among four sides forming edges of the air inlet of the decorative panel, and the hooks mounted at an opening portion of the casing, to allow the levers to be hooked thereon, respectively.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: March 5, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masahiro Kamijo, Masahiko Takagi, Tatsuo Furuta
  • Publication number: 20190044054
    Abstract: A piezoelectric material which is low in load on the environment, and also satisfies both the requirements of a high piezoelectric constant and a high mechanical quality factor. The piezoelectric material comprises a plurality of crystal grains containing Ba, Ca, Ti, Zr, Mn, and O. An average equivalent circle diameter of the crystal grains is not smaller than 1.0 ?m and not larger than 10 ?m. The crystal grains include crystal grains A each having a first domain with a width of not smaller than 300 nm and not larger than 800 nm, and crystal grains B each having a second domain with a width of not smaller than 20 nm and not larger than 50 nm.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 7, 2019
    Inventors: Tomohiro Watanabe, Makoto Kubota, Akira Uebayashi, Kanako Oshima, Tatsuo Furuta
  • Publication number: 20190041087
    Abstract: An indoor unit includes a main body unit including a housing having an opening hole for pipe formed on a part of a side surface of the main body unit, a refrigerant pipe connection part projecting from inside to outside of the housing through the opening hole for pipe, and an attachment plate holding and fixing the refrigerant pipe connection part together with the housing to close the opening hole for pipe. The opening hole for pipe is formed over a first side surface on a side of the housing from which the refrigerant pipe connection part projects and a second side surface adjacent to the first side surface, and the attachment plate has an L shape including planes corresponding to the opening hole for pipe over the first side surface and the second side surface.
    Type: Application
    Filed: October 8, 2015
    Publication date: February 7, 2019
    Inventors: Takahiro KOMATSU, Takaaki TAKISHITA, Tatsuo FURUTA, Naoya MATSUNAGA
  • Publication number: 20190019940
    Abstract: A piezoelectric element includes a piezoelectric material layer and an electrode layer, wherein the piezoelectric material layer and the electrode layer are stacked on top of each other, the piezoelectric material layer includes a barium titanate-based material, and two coercive fields Ec1 and Ec2 of the piezoelectric element have the same sign and satisfy (|Ec2|?|Ec1|)?8 kV/cm.
    Type: Application
    Filed: July 6, 2018
    Publication date: January 17, 2019
    Inventors: Jumpei Hayashi, Makoto Kubota, Shinya Koyama, Tatsuo Furuta, Kanako Oshima
  • Publication number: 20180351074
    Abstract: A piezoelectric element, in which a piezoelectric material layer has a plurality of crystal particles and a plurality of void portions and, in at least one of two or more of the piezoelectric material layers, when the average thickness in the lamination direction of the piezoelectric material layer is defined as TP, the average circle-equivalent diameter of the plurality of crystal particles is defined as DG, the maximum length in the lamination direction of the plurality of void portions not contacting the electrode layers is defined as LV, and the average thickness of the electrode layers contacting the at least one piezoelectric material layer is defined as TE, 0.07TP?DG?0.33TP and TE?LV?0.3TP are established and the lead content is less than 1000 ppm.
    Type: Application
    Filed: May 23, 2018
    Publication date: December 6, 2018
    Inventors: Makoto Kubota, Jumpei Hayashi, Tatsuo Furuta, Kanako Oshima, Shinya Koyama
  • Patent number: 10119746
    Abstract: An indoor unit according to the present invention includes a securing plate provided at an upper edge of a sidewall of a drain pan that collects drain water generated from an indoor heat exchanger, and an antimicrobial-agent-containing case that contains an antimicrobial agent and includes a case frame positioned in an area where the drain water is collected, a case-attaching portion conforming to the securing plate and being detachably attached to the securing plate, and an arm connecting the case frame and the case-attaching portion. The antimicrobial-agent-containing case is attached to the securing plate from an opening of an air inlet from which air is taken into a body.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: November 6, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaaki Maruyama, Takaaki Takishita, Akinori Toyoda, Tatsuo Furuta, Hiroyuki Hatakeyama, Naoya Matsunaga, Takahiro Komatsu
  • Publication number: 20180316284
    Abstract: A vibrator which is constructed by bonding a piezoelectric element and an elastic body together via a bonding layer. The piezoelectric element has a piezoelectric ceramic and electrodes. The bonding layer has an unbonded region that is located close to a nodal line of a vibration in a primary out-of-plane vibration mode when the vibration is excited in the vibrator, and in the unbonded region, the piezoelectric element and the elastic body are not bonded together.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 1, 2018
    Inventors: Miki Ueda, Tatsuo Furuta, Takayuki Watanabe, Shinya Koyama, Jumpei Hayashi, Makoto Kubota
  • Patent number: 10038394
    Abstract: A vibration wave drive device includes an annular piezoelectric element including a piezoelectric material and multiple electrodes provided sandwiching the piezoelectric material, the annular piezoelectric element being configured to vibrate by a traveling wave of a wavelength ?; and a power feeding member including at least an electric wire for supplying electric power to the element, the feeding member being provided at a first surface of the element. The element includes at least two driving regions, and a non-driving region arranged between two of the at least two driving regions and having an average annular length of n?/4, n being an odd number. At least one electrode provided on the first surface is arranged across the driving region and the non-driving region, and is electrically connected to the feeding member only in the non-driving region.
    Type: Grant
    Filed: June 23, 2014
    Date of Patent: July 31, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiro Ifuku, Tatsuo Furuta, Kenichi Takeda, Shinya Koyama, Hidenori Tanaka, Satoshi Fujita
  • Publication number: 20180195757
    Abstract: An indoor unit for an air-conditioning apparatus and an air-conditioning apparatus that include levers of a decorative panel operated through insertion hole portions, and then move vertically in the insertion hole portions by the gravity, to thereby be temporarily hung on the hooks. The levers are kept holed on hooks. The indoor unit for an air-conditioning apparatus includes a casing, a decorative panel mounted on a lower surface side of the casing and having an air inlet formed therein, the levers mounted so as to be opposed to each other on opposed two sides among four sides forming edges of the air inlet of the decorative panel, and the hooks mounted at an opening portion of the casing, to allow the levers to be hooked thereon, respectively.
    Type: Application
    Filed: September 1, 2015
    Publication date: July 12, 2018
    Inventors: Masahiro KAMIJO, Masahiko TAKAGI, Tatsuo FURUTA