Patents by Inventor Akira Kubota

Akira 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: 10707539
    Abstract: A battery is provided including an anode, a cathode and an electrolyte; wherein the electrolyte includes one or both of fluoro ethylene carbonate and difluoro ethylene carbonate in an amount of 0.5% by mass or more and 10% by mass or less, wherein the anode includes an anode active material layer provided on an anode current collector, and wherein a thickness of the anode active material layer, after charging the battery, is 58 um or more and 75 um or less.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: July 7, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Patent number: 10680286
    Abstract: A nonaqueous electrolyte battery includes: a positive electrode, a negative electrode, and a nonaqueous electrolyte, wherein the positive electrode contains, as a positive electrode active material, a positive electrode material having a surface composition represented by the following formula (I); the nonaqueous electrolyte contains a halogenated carbonate represented by any of the following formulae (1) to (2) and an alkylbenzene represented by the following formula (3); a content of the halogenated carbonate is 0.1% by mass or more and not more than 50% by mass relative to the nonaqueous electrolyte; and a content of the alkylbenzene is 0.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: June 9, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toru Odani, Akira Yamaguchi, Masahiro Miyamoto, Tadahiko Kubota
  • Publication number: 20200173644
    Abstract: A frame member is attached to an opening in an outer light-reflection plate. The frame member is composed of an inner frame part, and an outer frame part disposed around the inner frame part. A light extraction part is formed between the outer frame part and the inner frame part. The inner frame part is constituted by a separate extraction part that extracts acoustic vibrations and light. A space of the separate extraction part includes, on both ends, a sound intake port on an internal space side where a sound source is disposed, and a sound extraction port formed in the top of the inner frame part so as to open toward the outside of an LED illumination device. The sound intake port and the sound extraction port are formed separated from each other by a prescribed distance, and the space is formed continuously in the inner frame part so as to connect the sound intake port and the sound extraction port.
    Type: Application
    Filed: January 10, 2020
    Publication date: June 4, 2020
    Inventors: Syunji Yamamoto, Tetsuji Kubota, Akira Kabumoto, Masahiro Okumura
  • Patent number: 10655736
    Abstract: In an embodiment, in a sliding component, a sliding face of a stationary-side seal ring 6 has a fluid circulation groove 10 communicating with a high-pressure fluid side via an entrance portion 10a and an exit portion 10b. A rotating-side seal ring 5 has a larger outer diameter and a smaller inner diameter than the seal ring 6. A groove 15 into which a claw is loosely fitted is provided on an outer periphery of the seal ring 5. A width of the groove 15 is smaller than a distance between the portion 10a and the 10b in the circumferential direction. WMR/WSR is set within a range of 0.75<WMR/WSR<1.4 (WMR is a face width between an inner diameter of the groove 15 and an inner diameter 6b of the sliding face; WSR is a face width of the sliding face).
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: May 19, 2020
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Kazumasa Sunagawa, Yuichiro Tokunaga, Hideyuki Inoue, Takeshi Hosoe, Ryoma Yamakawa, Yuta Negishi, Kenji Kiryu, Keiichi Chiba, Akira Yoshino, Hiroshi Kubota
  • Publication number: 20200140340
    Abstract: Provided are a powder for laser manufacturing which can be stably manufactured and from which a three-dimensional manufactured object ensuring a manufacturing accuracy can be obtained and a using method thereof. A powder for ceramic manufacturing for obtaining a manufactured object by repeatedly sintering or fusing and solidifying in sequence a powder in an irradiation portion with laser light, in which the powder includes a plurality of constituent materials, at least one constituent material of the constituent materials is an absorber that relatively strongly absorbs the laser light compared to other constituent materials, and at least a part of the absorber changes to a different constituent material that relatively weakly absorbs the laser light by irradiation with the laser light and a using method of a powder in which the powder is used.
    Type: Application
    Filed: January 7, 2020
    Publication date: May 7, 2020
    Inventors: Nobuhiro Yasui, Hisato Yabuta, Kanako Oshima, Hiroshi Saito, Yoshihiro Ohashi, Makoto Kubota, Akira Uebayashi
  • Publication number: 20200127188
    Abstract: A piezoelectric transformer comprises at least a laminate of a first member, a first piezoelectric element, a second piezoelectric element and a second member sequentially stacked one on the other in the above-listed order and a pressurizing mechanism for squeezing the first member and the second member together in the stacking direction. The ratio of the electromechanical coupling coefficient k33 relative to the electromechanical coupling coefficient k31 (k33/k31) of the first piezoelectric element and the second piezoelectric element is not less than 2.0.
    Type: Application
    Filed: October 10, 2019
    Publication date: April 23, 2020
    Inventors: Akira Uebayashi, Miki Ueda, Takanori Matsuda, Makoto Kubota
  • Patent number: 10597765
    Abstract: A steel according to an aspect of the present invention has a chemical composition within a predetermined range, in which a hardenability index Ceq ranges from greater than 7.5 to smaller than 44.0, a metallographic structure includes ferrite ranging from 85 to 100 area %, an average distance between sulfides, which are observed in a cross section parallel to a rolling direction of the steel and have an equivalent circle diameter ranging from 1 ?m or greater to smaller than 2 ?m, is shorter than 30.0 ?m, and a presence density of the sulfides, which are observed in the cross section parallel to the rolling direction of the steel and have an equivalent circle diameter ranging from 1 ?m or greater to smaller than 2 ?m, is 300 pieces/mm2 or more.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: March 24, 2020
    Assignee: NIPPON STEEL CORPORATION
    Inventors: Akira Shiga, Manabu Kubota, Hajime Hasegawa, Hideo Mizukami
  • Publication number: 20200044139
    Abstract: There is provided a piezoelectric transformer including a first output terminal, a first piezoelectric element connected to the first output terminal, a second output terminal, a second piezoelectric element connected to the second output terminal, an input terminal, and a third piezoelectric element connected to the input terminal, wherein each of the first and second output terminals is formed to be individually connectable to a corresponding external load and outputs a voltage at a different frequency.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Miki Ueda, Takanori Matsuda, Makoto Kubota, Akira Uebayashi, Norihiro Suzuki
  • Publication number: 20200010161
    Abstract: An underwater mobile inspection apparatus capable of inspecting an inspection object on a seafloor while cruising includes a cruising body configured to submerge under-water and cruise along the inspection object so as to not come into contact with the inspection object, a first movable arm provided on the cruising-body, and an inspection tool unit provided on the first movable arm and including at least one of an image-capturing camera for use in visually inspecting the inspection object and a device configured to inspect a wall thickness of the inspection object by using an ultrasonic wave. A controller is configured to, when the cruising-body cruises along the inspection object so as to not come into contact with the inspection object, operate the first movable arm to move the inspection tool unit, such that a positional relationship of the inspection tool unit with the inspection object becomes a predetermined target positional relationship.
    Type: Application
    Filed: September 17, 2019
    Publication date: January 9, 2020
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Akira KIMURA, Noriyuki OKAYA, Kazuya SUMINO, Minehiko MUKAIDA, Hiroaki KAGAYA, Masanori HAMAMATSU, Akiyoshi SAIKI, Tetsuya KUBOTA, Masayuki ENOMOTO
  • Patent number: 10516091
    Abstract: An ultrasonic motor, usable in a drive control system and the like, 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, one or more non-drive phase electrodes, and one or more detection phase electrodes.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: December 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuo Furuta, Akira Uebayashi, Hidenori Tanaka, Shinya Koyama, Makoto Kubota, Jumpei Hayashi
  • Publication number: 20190378970
    Abstract: Provided is a piezoelectric ceramics including crystal grains each including: a first region that is formed of a perovskite-type metal oxide having a crystal structure in which a central element of a unit cell is located at an asymmetrical position; and a second region that is formed of a perovskite-type metal oxide having a crystal structure in which a central element of a unit cell is located at a symmetrical position, and that is present inside the first region, wherein a ratio of a cross-sectional area of the second region to a cross-sectional area of the piezoelectric ceramics is 0.1% or less.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 12, 2019
    Inventors: Akira Uebayashi, Kanako Oshima, Makoto Kubota, Tatsuo Furuta, Yasushi Shimizu, Mikio Shimada, Chiaki Arii
  • Publication number: 20190360954
    Abstract: An information processing apparatus calculates a first temperature of a temperature surface when a heat density of each of a plurality of heating cells is set to a first heat density, calculates a second temperature when heat densities of the plurality of heating cells are set to a second heat density obtained by adding a constant value to each of first heat densities, calculates a change coefficient according to a temperature difference between the first and second temperatures, determines a third heat density so that a third temperature becomes a desired target temperature, based on the change coefficient, determines a width of each of the plurality of heating cells, based on the third heat density, and changes a shape of each of the plurality of heating cells, based on the width by using mesh morphing.
    Type: Application
    Filed: May 2, 2019
    Publication date: November 28, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Tetsuyuki Kubota, Akira Sakai
  • Publication number: 20190334458
    Abstract: The present invention provides a vibrator made of a non-lead-based piezoelectric material and capable of being driven at a sufficient speed with low power consumption, and provides a vibration wave drive device and an electronical device each using the vibrator. To that end, the vibrator according to the present invention includes a piezoelectric element including a piezoelectric material and electrodes, and an elastic body, wherein a Pb component contained in the piezoelectric material is less than 1000 ppm, and a resonance frequency fA in a vibration mode A and a resonance frequency fB in a vibration mode B satisfy a relation of an absolute value of (fB?fA)>2 (kHz), the vibration mode A and the vibration mode B generating vibration waves in the elastic body with wave fronts of the vibration waves intersecting each other.
    Type: Application
    Filed: December 21, 2017
    Publication date: October 31, 2019
    Inventors: Tatsuo Furuta, Takayuki Watanabe, Miki Ueda, Shinya Koyama, Makoto Kubota, Takanori Matsuda, Akira Uebayashi, Jumpei Hayashi, Hitoshi Nishitani
  • Patent number: 10450041
    Abstract: An underwater mobile inspection apparatus capable of inspecting an inspection object on a seafloor while cruising includes a cruising body configured to submerge under-water and cruise along the inspection object so as to not come into contact with the inspection object, a first movable arm provided on the cruising-body, and an inspection tool unit provided on the first movable arm and including at least one of an image-capturing camera for use in visually inspecting the inspection object and a device configured to inspect a wall thickness of the inspection object by using an ultrasonic wave. A controller is configured to, when the cruising-body cruises along the inspection object so as to not come into contact with the inspection object, operate the first movable arm to move the inspection tool unit, such that a positional relationship of the inspection tool unit with the inspection object becomes a predetermined target positional relationship.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: October 22, 2019
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Akira Kimura, Noriyuki Okaya, Kazuya Sumino, Minehiko Mukaida, Hiroaki Kagaya, Masanori Hamamatsu, Akiyoshi Saiki, Tetsuya Kubota, Masayuki Enomoto
  • 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: 10443737
    Abstract: In an embodiment, a slide component includes one slide part 5 provided, on a low-pressure side of a sealing face thereof, with a negative pressure generation mechanism 10 including a negative pressure generation groove 10. The negative pressure generation groove 10a communicates with a high-pressure fluid side and is separated from a low-pressure fluid side by a land portion R. Another slide part 1 is provided, in a sealing face thereof, with at least one interference groove 15 communicating with the high-pressure fluid side for producing pressure variations in a fluid in the negative pressure generation groove 10a. The at least one interference groove 15 has an end 15a on an inside-diameter side extending to a position to radially overlap the negative pressure generation groove 10a.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: October 15, 2019
    Assignee: EAGLE INDUSTRY CO., LTD.
    Inventors: Masatoshi Itadani, Kazumasa Sunagawa, Yuichiro Tokunaga, Hideyuki Inoue, Takeshi Hosoe, Ryoma Yamakawa, Yuta Negishi, Kenji Kiryu, Keiichi Chiba, Akira Yoshino, Hiroshi Kubota
  • Publication number: 20190264305
    Abstract: A steel for cold forging has a predetermined chemical composition, satisfies d+3??10.0 and SA/SB<0.30, includes 1200/mm2 or more of sulfides having an equivalent circle diameter of 1.0 to 10.0 ?m in a microstructure, and has an average distance between the sulfides of less than 30.0 ?m. Here, d is an average value of equivalent circle diameters of sulfides having an equivalent circle diameter of 1.0 ?m or more, ? is a standard deviation of the equivalent circle diameters of the sulfides having an equivalent circle diameter of 1.0 ?m or more, SA is the number of sulfides having an equivalent circle diameter of 1.0 ?m or more and less than 3.0 ?m, and SB is the number of the sulfides having an equivalent circle diameter of 1.0 ?m or more.
    Type: Application
    Filed: September 30, 2016
    Publication date: August 29, 2019
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Akira SHIGA, Manabu KUBOTA, Hajime HASEGAWA
  • Publication number: 20190256957
    Abstract: A steel according to an aspect of the present invention includes, as a chemical composition, by unit mass %, C: 0.15% to 0.40%, Mn: 0.10% to 1.50%, S: 0.002% to 0.020%, Ti: 0.005% to 0.050%, B: 0.0005% to 0.0050%, Bi: 0.0010% to 0.0100%, P: 0.020% or less, N: 0.0100% or less, Si: 0% or more and less than 0.30%, Cr: 0% to 1.50%, Al: 0% to 0.050%, Mo: 0% to 0.20%, Cu: 0% to 0.20%, Ni: 0% to 0.20%, Nb: 0% to 0.030%, and a remainder including Fe and impurities.
    Type: Application
    Filed: September 28, 2016
    Publication date: August 22, 2019
    Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventors: Manabu KUBOTA, Akira SHIGA, Hajime HASEGAWA
  • Publication number: 20190246013
    Abstract: A vibration device comprises a vibrating member having at least n (n?2) piezoelectric elements arranged on a vibrating plate, each of the piezoelectric elements being formed by using a lead-free piezoelectric material and electrodes, wherein if the temperature that maximizes the piezoelectric constant of the piezoelectric material of each of the n piezoelectric elements is expressed as Tm (m being a natural number between 1 and n), at least two of T1 through Tn differ from each other.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 8, 2019
    Inventors: Yasushi Shimizu, Takanori Matsuda, Shinya Koyama, Makoto Kubota, Akira Uebayashi, Kanako Oshima
  • Patent number: 10350902
    Abstract: A collection unit configured to collect ink mist generated due to a discharge of ink from a head configured to discharge the ink includes a filter for capturing the ink mist and a liquid supply portion configured to supply a liquid to the filter.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: July 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Arihito Miyakoshi, Masahiko Kubota, Yusuke Imahashi, Hiroshi Arimizu, Yoshinori Itoh, Hideo Sugimura, Takashi Horiba, Akira Fujikake