Patents by Inventor Takayuki Yokoyama

Takayuki Yokoyama 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).

  • Publication number: 20240101420
    Abstract: An ozone generator (100) includes: a flow path (1) through which gas flows from an inlet (5) to an outlet (6); an ozone generation unit (3) disposed in the flow path (1); and an ozone sensor (4) disposed in the flow path (1) and upstream of the ozone generation unit (3). The flow path (1) has an upstream-side flow path (130) that forms a gas passing space (AR) located upstream of the ozone generation unit (3) and through which the gas flows from one side to another side in a predetermined direction. The inlet (5) is disposed closer to an outer circumferential portion (131) of the upstream-side flow path (130) than the ozone sensor (4).
    Type: Application
    Filed: March 24, 2022
    Publication date: March 28, 2024
    Inventors: Shinichiro KITO, Takeshi UEYAMA, Yoichi HATTORI, Hiroyuki NISHIYAMA, Hideki HASUNUMA, Takahiro YOKOYAMA, Takayuki OHTANI
  • Publication number: 20240094661
    Abstract: An image forming apparatus includes a rotatable image bearing member and a rotatable developing member to carry developer made up of toner particles and carrier particles adhered to surfaces of the toner particles. Where a pressing force pressing the developing member against the image bearing member is F1, a total number of the carrier particles interposed between the toner particles and the image bearing member is N1, and an adhesion Ft between a carrier particle and a toner particle, measured when the carrier particle is pressed against the toner particle with F1/N1 that is a pressing force per unit carrier particle, and an adhesion Fdr1 between the carrier particle and the image bearing member, measured when the carrier particle is pressed against the image bearing member with F1/N1, satisfy Ft?Fdr1.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 21, 2024
    Inventors: Shuichi Tetsuno, Shinji Katagiri, Koji An, Hiroko Yokoyama, Wataru Takahashi, Shohei Ishio, Takayuki Tanaka, Tomonori Matsunaga
  • Publication number: 20240077339
    Abstract: There is a method for measuring a deviation amount of a measuring device, comprising: transferring, by using a transfer device, the measuring device to a position in an area specified by transfer position data; acquiring measurement values using four or more sensor electrodes of the measuring device; identifying two or more sensor electrodes among the four or more sensor electrodes, the two or more sensor electrodes outputting, as the measurement values, capacitances that satisfy a reliability standard; and calculating the deviation amount based on the measurement values of the identified two or more sensor electrodes.
    Type: Application
    Filed: September 4, 2023
    Publication date: March 7, 2024
    Applicant: Tokyo Electron Limited
    Inventors: Kimihiro YOKOYAMA, Takayuki HATANAKA, Ryoma KOBAYASHI
  • Patent number: 11923321
    Abstract: A memory die includes dielectric isolation rails embedded within a substrate semiconductor layer, laterally spaced apart along a first horizontal direction, and each laterally extending along a second horizontal direction that is perpendicular to the first horizontal direction, and alternating stacks of insulating layers and electrically conductive layers located over the substrate semiconductor layer. The alternating stacks are laterally spaced apart along the second horizontal direction by line trenches that laterally extend along the first horizontal direction. Arrays of memory stack structures are provided such that each array of memory stack structures among the arrays of memory stack structures vertically extends through a respective alternating stack. Each of the memory stack structures includes a respective vertical stack of memory elements and a respective vertical semiconductor channel.
    Type: Grant
    Filed: January 12, 2022
    Date of Patent: March 5, 2024
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Shin Sakiyama, Genta Mizuno, Kenzo Iizuka, Takayuki Yokoyama, Toshiyuki Sega
  • Patent number: 11912688
    Abstract: The present invention provides a compound represented by chemical formula (I) or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition containing the same.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: February 27, 2024
    Assignee: Tohoku University
    Inventors: Akira Sugawara, Atsushi Yokoyama, Susumu Suzuki, Yoshiharu Iwabuchi, Takayuki Doi
  • Publication number: 20230302797
    Abstract: A droplet discharge head includes: a nozzle configured to discharge a liquid as droplets; a pressure chamber defining substrate defining a pressure chamber communicating with the nozzle; a piezoelectric element including a first electrode, a second electrode, and a piezoelectric layer containing a perovskite-type composite oxide containing potassium (K), sodium (Na), and niobium (Nb) as a main component; and a vibration plate forming a part of a wall surface of the pressure chamber and configured to vibrate by driving of the piezoelectric element. A driving frequency f [Hz] of the piezoelectric element, a piezoelectric constant d31 [m/v] of the piezoelectric element, a ratio x of a Na molar fraction to a total value of a K molar fraction and the Na molar fraction in the piezoelectric layer, and a viscosity ? [Pa·s] of the liquid at 25° C. satisfy a relationship represented by a formula (1).
    Type: Application
    Filed: March 22, 2023
    Publication date: September 28, 2023
    Inventors: Kazuya KITADA, Yoichi TANAKA, Takayuki YOKOYAMA
  • Publication number: 20230302817
    Abstract: A droplet discharging head executes multi-path recording in which dot recording in one main scanning line is completed by n main scans when n is an integer of 2 or more. The droplet discharging head includes: a plurality of nozzles configured to discharge a liquid as droplets; a pressure chamber defining substrate defining a pressure chamber communicating with the nozzles; a piezoelectric element including a first electrode, a second electrode, and a piezoelectric layer containing a perovskite-type composite oxide containing K, Na, and Nb as a main component; and a vibration plate forming a part of a wall surface of the pressure chamber and configured to vibrate by driving of the piezoelectric element. The number of paths n in the multi-path recording, a piezoelectric constant d31 [m/v] of the piezoelectric element, and a ratio x of a Na molar fraction to a total value of a K molar fraction and the Na molar fraction in the piezoelectric layer satisfy a relationship represented by a formula (1).
    Type: Application
    Filed: March 21, 2023
    Publication date: September 28, 2023
    Inventors: Kazuya KITADA, Yoichi TANAKA, Takayuki YOKOYAMA
  • Publication number: 20230223356
    Abstract: A memory die includes dielectric isolation rails embedded within a substrate semiconductor layer, laterally spaced apart along a first horizontal direction, and each laterally extending along a second horizontal direction that is perpendicular to the first horizontal direction, and alternating stacks of insulating layers and electrically conductive layers located over the substrate semiconductor layer. The alternating stacks are laterally spaced apart along the second horizontal direction by line trenches that laterally extend along the first horizontal direction. Arrays of memory stack structures are provided such that each array of memory stack structures among the arrays of memory stack structures vertically extends through a respective alternating stack. Each of the memory stack structures includes a respective vertical stack of memory elements and a respective vertical semiconductor channel.
    Type: Application
    Filed: January 12, 2022
    Publication date: July 13, 2023
    Inventors: Shin SAKIYAMA, Genta MIZUNO, Kenzo IIZUKA, Takayuki YOKOYAMA, Toshiyuki SEGA
  • Patent number: 11667414
    Abstract: A vertical bag-making/filling/packaging machine (1) comprises: a film supplying portion (5) which lets out a film (F) from a roll (Fr); a bag-making guide (31) which folds the film (F) into a tubular shape and changes a conveying direction downward; a vertical sealing portion (60) which thermally seals side edges of the film (F) to each other in an up-down direction so as to make the film into a tubular shape; a film conveying portion (50) which conveys the film (F) downward; a filling portion (70) which loads a content (X) into an interior of the film (F); a lateral sealing portion (80) which thermally seals the film (F) in a left-right direction so as to make a bag body; a square-bottom sealing portion (90) which expands a bottom of the bag body to a rectangular shape from an inside and then thermally seals the bottom to form a rectangular bottom surface; and a cutter (89) which cuts off the bag body from the film (F).
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: June 6, 2023
    Assignee: ORIHIRO ENGINEERING CO., LTD.
    Inventors: Masataka Tsuruta, Akira Yamaguchi, Takayuki Yokoyama
  • Publication number: 20230129567
    Abstract: A vertical bag-making/filling/packaging machine (1) comprises: a film supplying portion (5) which lets out a film (F) from a roll (Fr); a bag-making guide (31) which folds the film (F) into a tubular shape and changes a conveying direction downward; a vertical sealing portion (60) which thermally seals side edges of the film (F) to each other in an up-down direction so as to make the film into a tubular shape; a film conveying portion (50) which conveys the film (F) downward; a filling portion (70) which loads a content (X) into an interior of the film (F); a lateral sealing portion (80) which thermally seals the film (F) in a left-right direction so as to make a bag body; a square-bottom sealing portion (90) which expands a bottom of the bag body to a rectangular shape from an inside and then thermally seals the bottom to form a rectangular bottom surface; and a cutter (89) which cuts off the bag body from the film (F).
    Type: Application
    Filed: February 4, 2022
    Publication date: April 27, 2023
    Applicant: ORIHIRO ENGINEERING CO., LTD.
    Inventors: Masataka TSURUTA, Akira YAMAGUCHI, Takayuki YOKOYAMA
  • Publication number: 20220274333
    Abstract: A three-dimensional shaping device includes: an ejection head including a nozzle configured to eject a binder containing water, a water-soluble resin, and a wetting agent, an individual liquid chamber communicating with the nozzle, an inflow path configured to flow the binder into the individual liquid chamber, and an outflow path configured to flow the binder out of the individual liquid chamber; and a circulation flow path configured to circulate the binder flowing out of the outflow path to the inflow path.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 1, 2022
    Inventors: Eiji Okamoto, Toshimitsu Hirai, Kaoru Momose, Takayuki Yokoyama
  • Patent number: 11097552
    Abstract: A droplet discharge apparatus includes a first head, a first-ink pack storing first ink, a second head, a second ink pack storing second ink, a cleaning liquid container storing cleaning liquid, a common flow path system, a cleaning liquid flow path, a first pump feeding the first ink from the first ink pack to the second ink pack through the common flow path system, a second pump feeding the cleaning liquid from the cleaning liquid container to the first ink pack through the cleaning liquid flow path and the common flow path system, a first valve controlling a liquid flow rate between the common flow path system and the first ink pack, a second valve controlling a liquid flow rate between the common flow path system and the second ink pack, a third valve controlling a liquid flow rate between the common flow path system and the cleaning liquid flow path, and a control unit, wherein the common flow path system, the first valve, and the second valve are located higher than a liquid surface in the first ink pac
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: August 24, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kinya Ozawa, Takayuki Yokoyama
  • Patent number: 11020980
    Abstract: A droplet-discharge-apparatus includes a first-head, a first-ink-container storing first-ink, a second-head, a second-ink-container storing second-ink, a cleaning-liquid-container storing cleaning-liquid, a common-flow-path-system, a cleaning-liquid-flow-path, a first-pomp feeding the first-ink from the first-ink-container to the second-ink-container through the common-flow-path-system, a second-pomp feeding the cleaning-liquid from the cleaning-liquid-container to the first-ink-container through the cleaning-liquid-flow-path and the common-flow-path-system, a first-valve controlling a liquid flow rate between the common-flow-path-system and the first-ink-container, a second-valve controlling a liquid flow rate between the common-flow-path-system and the second-ink-container, a third-valve controlling a liquid flow rate between the common-flow-path-system and the cleaning-liquid-flow-path, and a control-unit.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: June 1, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kinya Ozawa, Takayuki Yokoyama
  • Publication number: 20200307244
    Abstract: A droplet-discharge-apparatus includes a first-head, a first-ink-pack storing first-ink, a second-head, a second-ink-pack storing second-ink, a cleaning-liquid-container storing cleaning-liquid, a common-flow-path-system, a cleaning-liquid-flow-path, a first-pomp feeding the first-ink from the first-ink-pack to the second-ink-pack through the common-flow-path-system, a second-pomp feeding the cleaning-liquid from the cleaning-liquid-container to the first-ink-pack through the cleaning-liquid-flow-path and the common-flow-path-system, a first-valve controlling a liquid flow rate between the common-flow-path-system and the first-ink-pack, a second-valve controlling a liquid flow rate between the common-flow-path-system and the second-ink-pack, a third-valve controlling a liquid flow rate between the common-flow-path-system and the cleaning-liquid-flow-path, and a control-unit, wherein the common-flow-path-system, the first-valve, and the second-valve are located higher than a liquid surface in the first-ink-pac
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Inventors: Kinya OZAWA, Takayuki YOKOYAMA
  • Publication number: 20200307239
    Abstract: A droplet-discharge-apparatus includes a first-head, a first-ink-container storing first-ink, a second-head, a second-ink-container storing second-ink, a cleaning-liquid-container storing cleaning-liquid, a common-flow-path-system, a cleaning-liquid-flow-path, a first-pomp feeding the first-ink from the first-ink-container to the second-ink-container through the common-flow-path-system, a second-pomp feeding the cleaning-liquid from the cleaning-liquid-container to the first-ink-container through the cleaning-liquid-flow-path and the common-flow-path-system, a first-valve controlling a liquid flow rate between the common-flow-path-system and the first-ink-container, a second-valve controlling a liquid flow rate between the common-flow-path-system and the second-ink-container, a third-valve controlling a liquid flow rate between the common-flow-path-system and the cleaning-liquid-flow-path, and a control-unit.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Kinya OZAWA, Takayuki YOKOYAMA
  • Publication number: 20200087009
    Abstract: A vertical bag-making/filling/packaging machine (1) comprises: a film supply portion (5); a film engaging portion (31) which is engaged with a film (F); a vertical seal portion (60) which makes the film (F) into a tubular shape; a film conveying portion (50); a film clamp (34) which holds the film (F) at the film engaging portion (31); a film tension releasing portion (20) which loosens the film (F); a filling portion (70) which inputs the content (X); a weighing portion (40) which weighs the content (X); a lateral sealing portion (80) which makes the film (F) into a bag body (G); and a cutter which cuts off the bag body (G).
    Type: Application
    Filed: April 27, 2018
    Publication date: March 19, 2020
    Applicant: ORIHIRO ENGINEERING CO., LTD.
    Inventors: Masataka Tsuruta, Katsumi Nagai, Akira Yamaguchi, Takayuki Yokoyama
  • Publication number: 20190248610
    Abstract: A sheet conveying device includes a first conveyer and a second conveyer, each including a upstream-side pulley and a downstream-side pulley with respect to a conveying direction, an endless belt stretched around these pulleys, and a suction mechanism provided on an inner periphery relative to a conveying surface of the endless belt, along the conveying direction, wherein a third conveyer including a upstream-side pulley and a downstream-side pulley relative to the conveying direction and an endless belt stretched around these pulleys is provided between the first conveyer and the second conveyer, and in a state where the third conveyer is viewed from a side of the conveying surface, the upstream-side pulley of the third conveyer is arranged to be overlapped with the downstream-side pulley of the first conveyer, and the downstream-side pulley of the third conveyer is arranged to be overlapped with the upstream-side pulley of the second conveyer.
    Type: Application
    Filed: February 6, 2019
    Publication date: August 15, 2019
    Inventors: Takayuki YOKOYAMA, Yutaka HOKAZONO
  • Patent number: 10312773
    Abstract: Each cross-section of the connector member assembling hole and the assembly main body 51a in a direction intersecting the insertion direction has a point-symmetrical circular shape with the insertion shaft center FC as the center. A pair of connector-side female terminals 57a, opposed to each other with the insertion shaft center FC as the center, is provided at the distal end side in the insertion direction of the assembly main body 51a, and a pair of brush-side male terminals, opposed to each other with the insertion shaft center FC as the center and to which the connector-side female terminals 57a are connected, is provided to a portion of the brush holder opposite to the connector member assembling hole.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: June 4, 2019
    Assignee: Mitsuba Corporation
    Inventors: Hiroyuki Uchimura, Masashi Suto, Hiromitsu Takahashi, Takayuki Yokoyama
  • Publication number: 20160072368
    Abstract: Each cross-section of the connector member assembling hole and the assembly main body 51a in a direction intersecting the insertion direction has a point-symmetrical circular shape with the insertion shaft center FC as the center. A pair of connector-side female terminals 57a, opposed to each other with the insertion shaft center FC as the center, is provided at the distal end side in the insertion direction of the assembly main body 51a, and a pair of brush-side male terminals, opposed to each other with the insertion shaft center FC as the center and to which the connector-side female terminals 57a are connected, is provided to a portion of the brush holder opposite to the connector member assembling hole.
    Type: Application
    Filed: April 24, 2014
    Publication date: March 10, 2016
    Inventors: Hiroyuki Uchimura, Masashi Suto, Hiromitsu Takahashi, Takayuki Yokoyama
  • Patent number: 8459547
    Abstract: A control device for controlling a use of control object apparatus, including a control section which is configured to read out information recorded in an IC card with noncontact state, to discriminates an attribute of a user based on readout information and previously stored information, and to switch between an authentication mode and a billing mode in accordance with the attribute of the user, wherein in the authentication mode, the control section permits the use of the control object apparatus only with an authentication, and in the billing mode, the control section executes a billing processing on the IC card in accordance with a use state of the control object apparatus.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: June 11, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Takayuki Yokoyama, Kazuyoshi Tanaka, Yutaka Tourai, Ryouichi Suzuki, Tomoko Yamashita