Patents by Inventor Satoshi Ichimura

Satoshi Ichimura 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: 11282635
    Abstract: An object of the present invention is to provide a stationary induction electric apparatus that can improve insulating performance with a few additional structures. In the stationary induction electric apparatus comprising: an iron core 1; a low-voltage coil conductor 400 wound on the iron core; an insulator 3 enclosing the low-voltage coil conductor; and a high-voltage coil conductor 2 which is wound on the insulator and to which a voltage is applied from the outside, a first shield conductor 5 wound adjacent to the inner peripheral surface of the insulator, a second shield conductor 4 wound adjacent to the outer peripheral surface of the insulator, one end of the first shield conductor, and one end of the second shield conductor are electrically connected to any region of the high-voltage coil conductor.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: March 22, 2022
    Assignee: Hitachi, Ltd.
    Inventors: Satoshi Ichimura, Daigo Komesu, Shinji Fujita, Hiroshi Morita, Li Lu
  • Publication number: 20220057291
    Abstract: The present invention is directed to a leakage oil detection device for detecting leakage oil in an oil filled apparatus including: a light source configured to irradiate the apparatus; an imaging device configured to capture an image of the apparatus; a control device configured to control operations of the light source and the imaging device; a storage device configured to store a captured image; an image processing device configured to process the stored image; and a display device configured to display a processing result. The light source and the imaging device are arranged to capture specular reflection light from a surface of the apparatus as a target object. The image processing device recognizes a brightest portion and an adjacent dark portion on the image as leakage oil adhesion portions when a three-layer structure of luminance having bright portions having different luminances and a dark portion is observed in the image.
    Type: Application
    Filed: November 7, 2019
    Publication date: February 24, 2022
    Applicant: Hitachi, Ltd.
    Inventors: Li Lu, Satoshi Ichimura, Akira Nishimizu, Akira Yamagishi
  • Patent number: 10755442
    Abstract: An oil leakage detector of the present invention includes an image processing unit wherein the image processing unit calculates the values of saturation and intensity of each pixel in the color image of the object after an ultra-violet light is irradiated thereon, draws an intensity-saturation characteristic line of the saturation expressed in an X-axis and the intensity expressed in a Y-axis, sets an upper limit and a lower limit of intensity of each saturation as a threshold value based on an area without oil adhesion on the surface of the object, and determines, in the intensity-saturation characteristic line, an area corresponding to a pixel group where the intensity exceeds the threshold value of the upper limit and a pixel group where the intensity falls below the threshold value of the lower limit, to be an oil leakage adhered area.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 25, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Li Lu, Satoshi Ichimura, Tomohiro Moriyama, Jun Nukaga, Toshiaki Rokunohe, Akira Yamagishi, Yasutomo Saito
  • Publication number: 20200219646
    Abstract: An object of the present invention is to provide a stationary induction electric apparatus that can improve insulating performance with a few additional structures. In the stationary induction electric apparatus comprising: an iron core 1; a low-voltage coil conductor 400 wound on the iron core; an insulator 3 enclosing the low-voltage coil conductor; and a high-voltage coil conductor 2 which is wound on the insulator and to which a voltage is applied from the outside, a first shield conductor 5 wound adjacent to the inner peripheral surface of the insulator, a second shield conductor 4 wound adjacent to the outer peripheral surface of the insulator, one end of the first shield conductor, and one end of the second shield conductor are electrically connected to any region of the high-voltage coil conductor.
    Type: Application
    Filed: May 15, 2018
    Publication date: July 9, 2020
    Inventors: Satoshi ICHIMURA, Daigo KOMESU, Shinji FUJITA, Hiroshi MORITA, Li LU
  • Patent number: 10234355
    Abstract: A leakage oil detection system includes a measurement device including a light source that causes a measured object which includes a leakage oil attachment part to be irradiated with ultraviolet rays, and an imaging device that detects fluorescence emitted from the leakage oil attachment part which is irradiated with the ultraviolet rays, and performs imaging on the measured object; and an analysis device that includes a driving control unit that controls operations of the light source and the imaging device, a recording unit that records an imaged image of the measured object which is imaged by the imaging device, and an image processing unit that calls the imaged image which is recorded in the recording unit and performs an image process to detect leakage oil.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 19, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Li Lu, Satoshi Ichimura, Tomohiro Moriyama, Jun Nukaga, Akira Yamagishi, Yasutomo Saito
  • Patent number: 10090095
    Abstract: A stationary induction electrical apparatus includes a disc winding having a structure in which a flow path for a cooling medium is provided between coils where a low voltage is generated between shield wires, an L-shaped insulation barrier is provided between coils where a high voltage is generated between the shield wires, a horizontal portion of the L-shaped insulation barrier is provided so as to closely contact an upper surface or a lower surface of the disc coil, a tip end portion in an axial direction of the L-shaped insulation barrier is provided so as to closely contact an inner surface of the disc coil which is adjacent to a pressboard insulation cylinder, and a height of the tip end portion in the axial direction is lower than a thickness of one coil.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: October 2, 2018
    Assignee: HITACHI, LTD.
    Inventors: Li Lu, Kenichi Kawamura, Hiroshi Miyao, Hiroshi Morita, Satoshi Ichimura, Jun Nukaga, Shinji Fujita, Kohei Yamaguchi, Hideki Ogata, Masato Suzuki
  • Publication number: 20180137652
    Abstract: An oil leakage detector of the present invention includes an image processing unit wherein the image processing unit calculates the values of saturation and intensity of each pixel in the color image of the object after an ultra-violet light is irradiated thereon, draws an intensity-saturation characteristic line of the saturation expressed in an X-axis and the intensity expressed in a Y-axis, sets an upper limit and a lower limit of intensity of each saturation as a threshold value based on an area without oil adhesion on the surface of the object, and determines, in the intensity-saturation characteristic line, an area corresponding to a pixel group where the intensity exceeds the threshold value of the upper limit and a pixel group where the intensity falls below the threshold value of the lower limit, to be an oil leakage adhered area.
    Type: Application
    Filed: January 12, 2018
    Publication date: May 17, 2018
    Inventors: Li LU, Satoshi ICHIMURA, Tomohiro MORIYAMA, Jun NUKAGA, Toshiaki ROKUNOHE, Akira YAMAGISHI, Yasutomo SAITO
  • Patent number: 9898830
    Abstract: An oil leakage detector of the present invention includes an image processing unit wherein the image processing unit calculates the values of saturation and intensity of each pixel in the color image of the object after an ultra-violet light is irradiated thereon, draws an intensity-saturation characteristic line of the saturation expressed in an X-axis and the intensity expressed in a Y-axis, sets an upper limit and a lower limit of intensity of each saturation as a threshold value based on an area without oil adhesion on the surface of the object, and determines, in the intensity-saturation characteristic line, an area corresponding to a pixel group where the intensity exceeds the threshold value of the upper limit and a pixel group where the intensity falls below the threshold value of the lower limit, to be an oil leakage adhered area.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: February 20, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Li Lu, Satoshi Ichimura, Tomohiro Moriyama, Jun Nukaga, Toshiaki Rokunohe, Akira Yamagishi, Yasutomo Saito
  • Publication number: 20170301454
    Abstract: A stationary induction electrical apparatus includes a disc winding having a structure in which a flow path for a cooling medium is provided between coils where a low voltage is generated between shield wires, an L-shaped insulation barrier is provided between coils where a high voltage is generated between the shield wires, a horizontal portion of the L-shaped insulation barrier is provided so as to closely contact an upper surface or a lower surface of the disc coil, a tip end portion in an axial direction of the L-shaped insulation barrier is provided so as to closely contact an inner surface of the disc coil which is adjacent to a pressboard insulation cylinder, and a height of the tip end portion in the axial direction is lower than a thickness of one coil.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 19, 2017
    Applicant: HITACHI, LTD.
    Inventors: Li LU, Kenichi KAWAMURA, Hiroshi MIYAO, Hiroshi MORITA, Satoshi ICHIMURA, Jun NUKAGA, Shinji FUJITA, Kohei YAMAGUCHI, Hideki OGATA, Masato SUZUKI
  • Publication number: 20170016796
    Abstract: There is provided a leakage oil detection system including: a measurement device that includes a light source that causes a measured object which includes a leakage oil attachment part to be irradiated with ultraviolet rays, and an imaging device that detects fluorescence emitted from the leakage oil attachment part which is irradiated with the ultraviolet rays, and performs imaging on the measured object; and an analysis device that includes a driving control unit that controls operations of the light source and the imaging device, a recording unit that records an imaged image of the measured object which is imaged by the imaging device, and an image processing unit that calls the imaged image which is recorded in the recording unit and performs an image process.
    Type: Application
    Filed: July 8, 2016
    Publication date: January 19, 2017
    Inventors: Li LU, Satoshi ICHIMURA, Tomohiro MORIYAMA, Jun NUKAGA, Akira YAMAGISHI, Yasutomo SAITO
  • Publication number: 20160275699
    Abstract: An oil leakage detector of the present invention includes an image processing unit wherein the image processing unit calculates the values of saturation and intensity of each pixel in the color image of the object after an ultra-violet light is irradiated thereon, draws an intensity-saturation characteristic line of the saturation expressed in an X-axis and the intensity expressed in a Y-axis, sets an upper limit and a lower limit of intensity of each saturation as a threshold value based on an area without oil adhesion on the surface of the object, and determines, in the intensity-saturation characteristic line, an area corresponding to a pixel group where the intensity exceeds the threshold value of the upper limit and a pixel group where the intensity falls below the threshold value of the lower limit, to be an oil leakage adhered area.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 22, 2016
    Inventors: Li LU, Satoshi ICHIMURA, Tomohiro MORIYAMA, Jun NUKAGA, Toshiaki ROKUNOHE, Akira YAMAGISHI, Yasutomo SAITO
  • Publication number: 20160062386
    Abstract: A polyphase stationary induction electric apparatus includes an N-phase N-leg main magnetic path (where N is 3 or more); a main winding wound around each main leg; and a control magnetic flux generating unit that generates a control magnetic flux having a magnitude variable in a direction substantially orthogonal to any one of N-phase main magnetic fluxes at an intersection part of N main legs; the control magnetic flux generating unit controlling the magnitude of the control magnetic flux to make N-phase reactance variable.
    Type: Application
    Filed: August 6, 2015
    Publication date: March 3, 2016
    Inventors: Satoshi ICHIMURA, Naoyuki KURITA, Naoya MIYAMOTO, Takahide MATSUO
  • Publication number: 20160042851
    Abstract: An iron core is configured as a winding iron core block group that is obtained in such a manner that winding iron core blocks having rectangular cross-sections each of which is obtained by laminating magnetic metal ribbons with a predetermined width and which have plural widths and laminated thicknesses are arranged in the width direction of the magnetic metal ribbons. The laminated thickness of the winding iron core block located in the middle of the width direction of the magnetic metal ribbons is larger, and the cross-section of each iron core leg is configured substantially in a circular shape by centering the winding iron core blocks in the laminated direction of the magnetic metal ribbons. Upper and lower yokes are arranged in such a manner that the bottom faces of the winding iron core blocks are aligned, and an in-window support member supports the upper yoke on a plane.
    Type: Application
    Filed: April 14, 2015
    Publication date: February 11, 2016
    Inventors: Naoya MIYAMOTO, Satoshi ICHIMURA, Naoyuki KURITA
  • Patent number: 9251939
    Abstract: An iron core is configured as a winding iron core block group that is obtained in such a manner that winding iron core blocks having rectangular cross-sections each of which is obtained by laminating magnetic metal ribbons with a predetermined width and which have plural widths and laminated thicknesses are arranged in the width direction of the magnetic metal ribbons. The laminated thickness of the winding iron core block located in the middle of the width direction of the magnetic metal ribbons is larger, and the cross-section of each iron core leg is configured substantially in a circular shape by centering the winding iron core blocks in the laminated direction of the magnetic metal ribbons. Upper and lower yokes are arranged in such a manner that the bottom faces of the winding iron core blocks are aligned, and an in-window support member supports the upper yoke on a plane.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: February 2, 2016
    Assignee: HITACHI, LTD.
    Inventors: Naoya Miyamoto, Satoshi Ichimura, Naoyuki Kurita
  • Patent number: 7577916
    Abstract: A technique for managing and representing dynamic context information. The system can manage local and remote activity information including sensor and computer application generated events such as calendar reminders. The technique allows users to store contextual relationship information associating an activity stream with temporary changes in the user interface that lie just outside a user's focus of attention in dynamic stylesheets. The dynamic stylesheets can be applied across work groups or companies and provide a similar contextual work environment. The dynamic stylesheets can also be customized to the specific needs of an individual. The techniques can be expanded beyond the computer desktop focus to include a user's complete work environment.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: August 18, 2009
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Elin R. Pedersen, Lester Nelson, Satoshi Ichimura
  • Patent number: 7364917
    Abstract: For detecting a component of a substance (of liquid or solid) on a front surface of a substrate, the substrate with the substance thereon is transferred into a vaporizing section, the substance is heated in the vaporizing section so that the component is vaporized from the substance in the vaporizing section, the component vaporized is fed from the substance in the vaporizing section to a detecting section, and the vaporized component is detected in the detecting section.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: April 29, 2008
    Assignee: Hitachi High-Tech Control Systems Corporation
    Inventors: Satoshi Ichimura, Masami Sakamoto, Toshio Iwasaki
  • Publication number: 20040219067
    Abstract: For detecting a component of a substance (of liquid or solid) on a front surface of a substrate, the substrate with the substance thereon is transferred into a vaporizing section, the substance is heated in the vaporizing section so that the component is vaporized from the substance in the vaporizing section, the component vaporized is fed from the substance in the vaporizing section to a detecting section, and the vaporized component is detected in the detecting section.
    Type: Application
    Filed: March 26, 2004
    Publication date: November 4, 2004
    Inventors: Satoshi Ichimura, Masami Sakamoto, Toshio Iwasaki
  • Patent number: 6732915
    Abstract: A presentation control system and method to facilitate the interaction between a user and a presentation device. The user generates tangible sensible identification devices, which are linked to items to be displayed in a presentation. In use, the user places the tangible sensible identification-carrying device in the sensible area of an identification sensing device. The identification sensing device reads an identification from the identification-carrying device and determines a presentation element identified by the identification. The presentation element is then displayed via a presentation display device. Alternatively, the user generates one or more control identification devices which are linked to controllable element(s) to be controlled in a presentation. In use, the user places the controllable identification-carrying device in the sensible area of a control identification sensing device.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: May 11, 2004
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Lester D Nelson, Satoshi Ichimura, Elin R Pedersen, Tomas Sokoler
  • Publication number: 20030213903
    Abstract: A new method for spatially separating and capturing ions type of different ionic mobility in a fluid medium, and an ion detection method and apparatus capable of newly utilizing this separating and capture method for high-sensitivity and high-resolution detection of ion species in tiny amounts within a fluid medium according to their ionic mobility. By overlapping an electrical field in the same direction as the flow direction, in a location with a decelerating flow having multiple ions, those ion species (ion 2, ion 3) having the specified range of ionic mobility, are captured at a position (z2, z3 each) where a drift speed (vd2, vd3 each) determined by the ionic mobility of each ion species and electrical field intensity is balanced by a flow speed (vf) changing in the flow direction of that flow location; and in this way ion species with different ionic mobility in a range specified by the balance position are spatially isolated in that direction and, captured in their respective flow directions.
    Type: Application
    Filed: May 15, 2003
    Publication date: November 20, 2003
    Inventors: Satoshi Ichimura, Tadashi Sato, Katsutoshi Tsuchiya
  • Patent number: 6580438
    Abstract: In a presentation control system environment, the methods and systems of this invention manipulate presentation elements to create a unified display characteristic between the elements selected for presentation. In particular, the systems and methods of this invention receive style identification information that corresponds to at least one attribute tags within a presentation element. A stylizer then manipulates the attribute tags to invoke style preferences governed by the style identification. Therefore, a unified, or customized, look can be achieved with any requested presentation element.
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: June 17, 2003
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoshi Ichimura, Lester D. Nelson, Elin R. Pedersen