Patents by Inventor Koji Yokota

Koji Yokota 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: 20210046573
    Abstract: A one-side submerged arc welding method includes setting: a welding speed transition section, in which welding is performed such that a welding speed is lowered from a welding speed of main welding to a welding speed being 80% or less of the welding speed of main welding; and a low welding speed section, in which welding is performed at a welding speed being 80% or less of the welding speed of main welding. A length of the welding speed transition section is set to be more than 200 mm and 1,000 mm or less. The low welding speed section is set as a section from a position of 100 mm or more and less than 1,000 mm in front of the end part of the steel plates to the end part.
    Type: Application
    Filed: January 25, 2019
    Publication date: February 18, 2021
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroyoshi YOKOTA, Masaharu KOMURA, Daisuki SUGIYAMA, Koji SATO
  • Publication number: 20200326237
    Abstract: An optical measuring device includes a light measurement unit, an acceleration sensor for detecting the acceleration of the optical measuring device, a storage for storing reference data obtained from the light measurement unit by measuring light from a reference object at a first timing and storing the acceleration detected by the acceleration sensor as history information, a first determination unit for determining whether the result of comparison between measurement data obtained from the light measurement unit by measuring light from the reference object at a second timing later than the first timing and the reference data satisfies a first malfunction condition, a second determination unit for determining whether the acceleration included in the history information satisfies a second malfunction condition, and an output unit for outputting that the optical measuring device malfunctions when the first malfunction condition and the second malfunction condition are satisfied.
    Type: Application
    Filed: April 10, 2017
    Publication date: October 15, 2020
    Inventors: Koji YAMAMOTO, Masahiko SAKIMOTO, Naoki SAGISAKA, Akihiro OKAYAMA, Satoshi YOKOTA, Norimasa KUBOTA
  • Publication number: 20200277500
    Abstract: Foaming that occurs when a naturally derived water-soluble pigment, such as spirulina blue, an anthocyanin-based pigment, a gardenia pigment, or a monascus pigment, is added to an aqueous solvent, such as water, and dissolved is suppressed. A solid composition containing a naturally derived water-soluble pigment is subjected to a compression treatment to suppress foaming.
    Type: Application
    Filed: September 14, 2018
    Publication date: September 3, 2020
    Inventors: Aki YOKOTA, Koji HAMASAKI, Koichi NAKASHIMA
  • Publication number: 20200253247
    Abstract: Defoaming and/or foam suppression of a naturally derived water-soluble pigment is performed by a method including contacting an emulsified oil/fat containing an emulsifier and an oil/fat with the naturally derived water-soluble pigment or water-soluble pigment-containing substance. An emulsified oil/fat-containing preparation, a pigment preparation, and a pigment-containing composition for a defoaming and/or foam suppression method for a naturally derived water-soluble pigment or a water-soluble pigment-containing substance are also prepared.
    Type: Application
    Filed: October 3, 2018
    Publication date: August 13, 2020
    Inventors: Aki YOKOTA, Koji HAMASAKI
  • Publication number: 20200114453
    Abstract: An arc welding method includes performing welding by using a gas and a solid wire. The gas contains Ar. The solid wire includes a steel core wire and a copper plating film formed on a surface of the steel core wire, and the copper plating film has an average grain diameter of 600 nm or less.
    Type: Application
    Filed: June 13, 2018
    Publication date: April 16, 2020
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hikaru KINASHI, Yasuyuki YOKOTA, Koji SATO
  • Publication number: 20200003820
    Abstract: An insertion determination unit (16) for precisely calculating a ground insulation resistance component of a leakage current regardless of the presence or absence of an inverter determines whether an inverter (3) is inserted between a commercial power system (2) and a three-phase motor (5). A resistance component leakage current calculation unit (18) calculates a ground insulation resistance component of a leakage current on the basis of a calculation procedure corresponding to the result of the above determination.
    Type: Application
    Filed: February 19, 2018
    Publication date: January 2, 2020
    Applicant: OMRON Corporation
    Inventors: Takuya FUKUDOME, Tsuyoshi TAKEUCHI, Koji YOKOTA, Tomohiro YAMADA
  • Publication number: 20190376185
    Abstract: A plasma processing apparatus includes: a shower head including a ceiling plate having a plurality of gas holes, and a base member having a space so as to supply the processing gas to the plurality of gas holes; a temperature adjustment mechanism provided in the shower head; an acquisition unit configured to acquire a combination of a plasma parameter and pressure in the space in the base member; an estimation unit configured to estimate temperature of the ceiling plate corresponding to the acquired combination of the parameter and the pressure with reference to temperature information indicating the temperature of the ceiling plate corresponding to the combination of the parameter and the pressure; and a temperature controller configured to control the temperature adjustment mechanism such that the estimated temperature of the ceiling plate becomes target temperature when a plasma processing is performed.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 12, 2019
    Inventors: Akihiro Yokota, Kazuki Moyama, Koji Maruyama
  • Publication number: 20190339120
    Abstract: A state monitoring system for a rotating machine includes: a sensor head; a preamplifier; a main unit; and a temperature sensor The sensor head includes: an acceleration sensor configured to measure vibrations of the motor and output a vibration value; and a temperature sensor configured to measure a surface temperature of the motor and output a rotating machine surface temperature value. The main unit includes: a processor configured to compare a current vibration value with a determination threshold value and determine the state of the motor; a display unit configured to display the vibration value, the rotating machine surface temperature value, and the ambient temperature value; an output unit configured to output a determination result of the processor; and a communication unit configured to receive the determination threshold value from a host system and transmit the current vibration value and the determination result to the host system.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 7, 2019
    Applicant: OMRON Corporation
    Inventors: Koji YOKOTA, Yukiyoshi YAMAMOTO, Taihei YASUDA, Tadahiko OGAWA, Takahiro NAKAMURA
  • Patent number: 10401227
    Abstract: A colorimetry device and a colorimetry method according to the present invention relatively move the position of a color measuring unit with respect to a color chart to the position of each of a plurality of patches obtained based on an image of the color chart by a moving unit for a chart region selected by a user out of chart regions extracted based on the image of the color chart, and measure the color of each of the plurality of patches by the color measuring unit.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 3, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Koji Harada, Satoshi Yokota
  • Publication number: 20190158756
    Abstract: An optical measuring device comprises: a lens to form an image with reflected light from a measuring object; an image sensor to receive the reflected light that has passed through the lens and generate an image representing the measuring object; a driver to drive a drive object, the drive object being at least one of the lens and the image sensor; and a controller to control the optical measuring device. The controller acquires, from the image sensor, a plurality of images generated by the image sensor successively imaging the measuring object while the driver is driving the drive object in accordance with a predetermined driving pattern, and outputs the plurality of images.
    Type: Application
    Filed: April 5, 2017
    Publication date: May 23, 2019
    Inventors: Koji YAMAMOTO, Satoshi YOKOTA, Norimasa KUBOTA, Yoshihisa ABE, Yuta YAMANOI, Masaaki CHIGASAKI, Osamu TOYAMA
  • Patent number: 8596193
    Abstract: A supply plate has a proximal end supported by a pivot shaft disposed parallel to a position-fixed shaft and a position-movable shaft. A position-movable shaft support member is pressed toward the position-fixed shaft so the first and second rolls are pressed at the contact point under a predetermined pressure. A link arm supported by a fulcrum shaft is pressed to a surface of the position-movable support member that faces the position-fixed shaft. The fulcrum shaft and the pivot shaft are connected. The contact point is shifted as the position-movable shaft support member moves toward the position-fixed shaft, and the pivot shaft is rotated around the axis line by the link arm, the fulcrum shaft, and the link mechanism based on the movement of the position-movable shaft support member, so the slant angle of the supply plate is automatically changed and the supply plate is directed to the contact point.
    Type: Grant
    Filed: July 2, 2008
    Date of Patent: December 3, 2013
    Assignee: Yanmar Co., Ltd.
    Inventors: Akinori Sakamoto, Tomohiro Mitsuhata, Koji Yokota, Tadashi Hamaguchi
  • Patent number: 8484952
    Abstract: A device for purification of exhaust gas including: an exhaust gas passage 15 connected to an internal combustion engine 10; a particulate matter trapping device 30 which is disposed in the exhaust gas passage 15, and which traps particulate matters in exhaust gas; ozone supply means 40 which is connected to the exhaust gas passage 15 and on an upstream side of the particulate matter trapping device 30, and which can supply ozone to the particulate matter trapping device 30; and an NO oxidizing catalyst 20 which is disposed in the exhaust gas passage 15 and on an upstream of the ozone supply means 40, and which oxidizes NO in the exhaust gas.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: July 16, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Sakakibara, Yoshihiko Itoh, Koji Yokota, Kouzi Banno, Hirohito Hirata, Masaru Kakinohana, Masaya Ibe
  • Patent number: 8475921
    Abstract: A composite material includes an aggregate which contains a first metal particle constituting a core and second metal oxide particulates surrounding the first metal particle and having an average primary particle diameter ranging from 1 to 100 nm.
    Type: Grant
    Filed: July 20, 2006
    Date of Patent: July 2, 2013
    Assignee: Kabushiki Kaisha Toyota Chuo Kenkyusho
    Inventors: Tomoyuki Kayama, Kouzi Banno, Kiyoshi Yamazaki, Koji Yokota
  • Patent number: 8294576
    Abstract: An infrared sensor switch of the invention comprises an infrared sensor with a detection range, and a controller that uses the sensor to try to detect whether or not a person is present in the detection range and controls an ON or OFF state of a corresponding load unit based on each detection result obtained from the sensor. The switch further comprises a sensor block comprising the sensor, and a housing that is mounted in a wall and retains the block so that the center axis of the detection range can be rotated about a horizontal axis and as well as rotated up to at least 40 degrees downward from a forward direction of 0 degrees.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: October 23, 2012
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Makiko Matsuoka, Tomohiro Ieki, Koji Yokota, Hajime Yabu, Susumu Nakano, Kei Miura
  • Publication number: 20110192291
    Abstract: A supply plate, which guides a material grain to a contact point between first and second rolls supported by a position-fixed shaft and a position-movable shaft respectively, has a proximal end portion supported by a pivot shaft in a relatively non-rotatable manner, the pivot shaft being disposed parallel to the position-fixed shaft and the position-movable shaft. A position-movable shaft support member that supports the position-movable shaft in a rotatable manner around the axis line is pressed toward the position-fixed shaft by a pressing mechanism so that the first and second rolls are pressed at the contact point to each other under a predetermined pressure. A link arm, which has a proximal end portion supported in a relatively non-rotatable manner by a fulcrum shaft parallel to the pivot shaft, is pressed to a surface of the position-movable support member that faces the position-fixed shaft. The fulcrum shaft and the pivot shaft are operatively connected to each other through a link mechanism.
    Type: Application
    Filed: July 2, 2008
    Publication date: August 11, 2011
    Applicant: Yanmar Co., Ltd.
    Inventors: Akinori Sakamoto, Tomohiro Mitsuhata, Koji Yokota, Tadashi Hamaguchi
  • Publication number: 20100281856
    Abstract: A device for purification of exhaust gas including: an exhaust gas passage 15 connected to an internal combustion engine 10; a particulate matter trapping device 30 which is disposed in the exhaust gas passage 15, and which traps particulate matters in exhaust gas; ozone supply means 40 which is connected to the exhaust gas passage 15 and on an upstream side of the particulate matter trapping device 30, and which can supply ozone to the particulate matter trapping device 30; and an NO oxidizing catalyst 20 which is disposed in the exhaust gas passage 15 and on an upstream of the ozone supply means 40, and which oxidizes NO in the exhaust gas.
    Type: Application
    Filed: June 6, 2007
    Publication date: November 11, 2010
    Inventors: Yuji Sakakibara, Yoshihiko Itoh, Koji Yokota, Kouzi Banno, Hirohito Hirata, Masaru Kakinohana, Masaya Ibe
  • Patent number: D630090
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: January 4, 2011
    Assignees: Nifco Inc., Morito Co., Ltd.
    Inventors: Taiyo Ishii, Koji Yokota
  • Patent number: D630502
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: January 11, 2011
    Assignees: Nifco Inc., Morito Co., Ltd.
    Inventors: Taiyo Ishii, Koji Yokota
  • Patent number: D652710
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: January 24, 2012
    Assignees: Morito Co., Ltd., NIFCO Inc.
    Inventors: Koji Yokota, Yumiko Kadoishi
  • Patent number: D680855
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: April 30, 2013
    Assignees: Nifco Inc., Morito Co., Ltd.
    Inventors: Yumiko Kadoishi, Koji Yokota, Keisuke Fujita