Patents by Inventor Yoichi Kowatari

Yoichi Kowatari 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: 10650251
    Abstract: In an industrial machine, the work safety is further improved by eliminating blind spots from an image displayed on a monitor. A hydraulic excavator 1 which is the industrial machine is equipped with monitoring cameras 15F, 15B, 15L, 15R mounted in the respective places of a revolving upperstructure 3 in order to capture images for monitoring. A monitor 20 displays camera images 21F, 21B, 21L, 21R obtained by the cameras as well as an icon image 21C of an image illustration of the hydraulic excavator 1. The cameras 15F, 15L, 15R are mounted at the distal ends of support arms 40F, 40L, 40R to be located in positions jutting from a revolving upperstructure main unit 3a of the revolving upperstructure 3, so that a hidden area under the underside of a catwalk 14 provided on the revolving upperstructure 3 falls within the field of view.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: May 12, 2020
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yoichi Kowatari, Hidefumi Ishimoto, Moritaka Oota, Yoshihiro Inanobe, Hiroyoshi Tanaka, Kouji Fujita, Takashi Kusama
  • Patent number: 10506179
    Abstract: A slewing-type hydraulic excavator has a plurality of cameras 13 for respectively imaging toward different directions. A view point converting section 21 performs coordinate image data conversion to create overhead view images to look down from an upper position. A composite overhead view image creating section 22 creates a composite overhead view image P arranged around a graphic image of the hydraulic excavator 1. An interference scope indicating section 25 indicates the scope of potential interference on the overhead view image with a surrounding obstacle at respective ground heights at the time of rotating the hydraulic excavator 1. A display image creating section 26 produces the composite overhead view image P together with interference scope which is displayed on a monitor.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: December 10, 2019
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoichi Kowatari, Hidefumi Ishimoto, Yoshihiro Inanobe
  • Publication number: 20190042858
    Abstract: In an industrial machine, the work safety is further improved by eliminating blind spots from an image displayed on a monitor. A hydraulic excavator 1 which is the industrial machine is equipped with monitoring cameras 15F, 15B, 15L, 15R mounted in the respective places of a revolving upperstructure 3 in order to capture images for monitoring. A monitor 20 displays camera images 21F, 21B, 21L, 21R obtained by the cameras as well as an icon image 21C of an image illustration of the hydraulic excavator 1. The cameras 15F, 15L, 15R are mounted at the distal ends of support arms 40F, 40L, 40R to be located in positions jutting from a revolving upperstructure main unit 3a of the revolving upperstructure 3, so that a hidden area under the underside of a catwalk 14 provided on the revolving upperstructure 3 falls within the field of view.
    Type: Application
    Filed: October 12, 2018
    Publication date: February 7, 2019
    Inventors: Yoichi KOWATARI, Hidefumi ISHIMOTO, Moritaka OOTA, Yoshihiro INANOBE, Hiroyoshi TANAKA, Kouji FUJITA, Takashi KUSAMA
  • Publication number: 20190037148
    Abstract: A slewing-type hydraulic excavator has a plurality of cameras 13 for respectively imaging toward different directions. A view point converting section 21 performs coordinate image data conversion to create overhead view images to look down from an upper position. A composite overhead view image creating section 22 creates a composite overhead view image P arranged around a graphic image of the hydraulic excavator 1. An interference scope indicating section 25 indicates the scope of potential interference on the overhead view image with a surrounding obstacle at respective ground heights at the time of rotating the hydraulic excavator 1. A display image creating section 26 produces the composite overhead view image P together with interference scope which is displayed on a monitor.
    Type: Application
    Filed: August 8, 2018
    Publication date: January 31, 2019
    Inventors: Yoichi KOWATARI, Hidefumi ISHIMOTO, Yoshihiro INANOBE
  • Patent number: 10160383
    Abstract: A surroundings monitoring system for a working machine prevents its own vehicle shadow from having an influence on the detection of an object existing around the working machine. The surroundings monitoring system for a working machine includes: a monocular camera picks up an image of the surroundings of the working machine. A characteristic pattern extraction unit extracts characteristic patterns in the picked-up image based on a characteristic amount of the image. A shadow profile extraction unit extracts a profile of a region, which can be regarded as a shadow of the working machine in the image, based on the characteristic amount of the image; and an object detection unit detects an obstacle existing around the working machine based on the remaining characteristic patterns obtained by excluding a shadow profile characteristic patterns positioned on the profile extracted by the shadow profile extraction unit from the characteristic patterns.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: December 25, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Chieko Onuma, Ryo Yumiba, Yoshibumi Fukuda, Yukihiro Kawamata, Yoichi Kowatari, Moritaka Oota
  • Patent number: 10145087
    Abstract: To recognize an obstacle such as a working face which may be touched by a revolving upperstructure including a height position thereof at the time of a swing control. A plurality of first cameras 13 for forming bird's eye views which photograph obliquely lower parts of directions different from each other are arranged in a revolving upperstructure 3, a composite bird's eye view 20 is displayed on a display 15, second cameras 16R, 16L for photographing through images including corner parts from a rear end of the revolving upperstructure 3 to side parts within a visual field range are arranged in lower part positions of a swing frame 3a of the revolving upperstructure 3 so as to rotate following swing of the revolving upperstructure 3, and corner part through images 30R, 30L are displayed on the display 15 so as to be superimposed on the composite bird's eye view 20.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: December 4, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoichi Kowatari, Kouji Fujita, Yoshihiro Inanobe, Hiroyoshi Tanaka, Takashi Kusama, Moritaka Oota, Hidefumi Ishimoto
  • Patent number: 10044933
    Abstract: A periphery monitoring device for a work machine includes imaging devices that capture an image of the surroundings of the work machine. An overhead view image is generated from the surroundings of the work machine based upon upper view-point images of the image devices. When generating an overhead view image of an overlap region of first and second upper view-point images relating to the images captured by the first and second imaging devices, the overhead view image generating unit, based upon a height of a virtual monitoring target, sets at least one of a first region in which the first upper view-point image is displayed and a second region in which the second upper view-point image is displayed, and also sets a third region in which a composite display image based upon the first and second upper view-point images is displayed.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 7, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Moritaka Oota, Yoichi Kowatari, Yoshihiro Inanobe
  • Patent number: 10017112
    Abstract: When a to-be-monitored image exists in an image lacking from a bird's-eye image for surroundings monitoring though the to-be-monitored image is imaged by a camera for monitoring, the to-be-monitored image is securely displayed on a display. Cameras 6F, 6B, 6L, 6R are provided in a longitudinal direction and in a lateral direction of a dump truck 1, in playing bird's-eye images 10F, 10B, 10L, 10R acquired by converting view points of a through image imaged by each camera, so as to display a to-be-monitored image in a to-be-monitored image undisplayable area, each through image imaged by each camera is aggregated on one screen by an image aggregating unit 21, this aggregated screen is scanned by a to-be-monitored image detector 20 to detect the to-be-monitored image, and the to-be-monitored image is superimposed on a synthetic bird's-eye image 10 displayed on the display 9 and is displayed.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 10, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoichi Kowatari, Yukihiro Kawamata, Yoshihiro Inanobe, Moritaka Oota
  • Patent number: 9990543
    Abstract: The vehicle exterior moving object detection system includes a surrounding-area image input section for capturing images in areas surrounding its own vehicle and delivering the captured images as surrounding-area images, a combined image constructing section for constructing a combined image including a result output from the detection of a moving object by combining the surrounding-area images, and an output section for presenting the combined image to the user.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: June 5, 2018
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoshibumi Fukuda, Chieko Onuma, Moritaka Oota, Yukihiro Kawamata, Yoichi Kowatari
  • Patent number: 9845051
    Abstract: This invention has an object to assist for traveling operation of a self-propelled industrial machine to display underneath image of the self-propelled industrial machine on a monitor of a display device mounted in a operator's cab. The display device of the self-propelled industrial machine according to the present invention is provided for a dump truck, which comprises cameras having field of view to underneath of the dump truck, a symbol image storage section to store a symbol image which is symbolized the dump truck, a superposing process section to make transparent with a predetermined transparent ratio in the symbol image as a transparent region and to superpose an image taken by the camera on the area corresponding to the transparent region as underneath image, and a monitor mounted in a cab of the dump truck for displaying the symbol image composed by the superposing process section.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: December 19, 2017
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yoichi Kowatari, Naokazu Oda, Katsuhiko Shimizu, Yoshihiro Inanobe, Hidefumi Ishimoto
  • Publication number: 20170341581
    Abstract: A bird's eye view image is displayed to be recognized by an operator intuitively and precisely, irrespective of the displayed direction of the bird's eye view image. The display device has a plurality of cameras having optical axis directed obliquely downward to take images around a self-propelled industrial machine. A view point converting section converts the camera images to an upper view point to create bird's eye images, and an image composing section creates a composite bird's eye view image by composing respective bird's eye images around a symbol image of a dump truck. A direction superposing section superposes a forward direction indicator to indicate the forward direction of the dump truck on the composite bird's eye view image, and a monitor mounted in a cab of the dump truck displays the composite bird's eye image in an arbitral direction which is composited with the forward direction indicator.
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Inventors: Yoichi KOWATARI, Yoshihiro INANOBE, Hidefumi ISHIMOTO, Yoshiyuki NAGANO, Masayoshi HAYASAKA, Eitaro ITO, Takaaki ISHII, Kenta TSUKIJISHIN
  • Publication number: 20170286763
    Abstract: The vehicle exterior moving object detection system includes a surrounding-area image input section for capturing images in areas surrounding its own vehicle and delivering the captured images as surrounding-area images, a combined image constructing section for constructing a combined image including a result output from the detection of a moving object by combining the surrounding-area images, and an output section for presenting the combined image to the user.
    Type: Application
    Filed: September 7, 2015
    Publication date: October 5, 2017
    Inventors: Yoshibumi FUKUDA, Chieko ONUMA, Moritaka OOTA, Yukihiro KAWAMATA, Yoichi KOWATARI
  • Publication number: 20170282794
    Abstract: When a to-be-monitored image exists in an image lacking from a bird's-eye image for surroundings monitoring though the to-be-monitored image is imaged by a camera for monitoring, the to-be-monitored image is securely displayed on a display. Cameras 6F, 6B, 6L, 6R are provided in a longitudinal direction and in a lateral direction of a dump truck 1, in playing bird's-eye images 10F, 10B, 10L, 10R acquired by converting view points of a through image imaged by each camera, so as to display a to-be-monitored image in a to-be-monitored image undisplayable area, each through image imaged by each camera is aggregated on one screen by an image aggregating unit 21, this aggregated screen is scanned by a to-be-monitored image detector 20 to detect the to-be-monitored image, and the to-be-monitored image is superimposed on a synthetic bird's-eye image 10 displayed on the display 9 and is displayed.
    Type: Application
    Filed: February 5, 2016
    Publication date: October 5, 2017
    Inventors: Yoichi KOWATARI, Yukihiro KAWAMATA, Yoshihiro INANOBE, Moritaka OOTA
  • Patent number: 9776566
    Abstract: A plurality of images captured by a plurality of cameras respectively to create a plurality of upper viewpoint images. Display images are extracted from the upper viewpoint images, and the extracted display images are synthesized to create an overhead image or bird's eye view image of surroundings, which has an image corresponding to an operating machine at a center of the bird's eye view image. When extracting each of the display images, a region of the display image extracted from the upper viewpoint image is expanded beyond the size of a standard extraction region on the basis of the set height of a mating face. Each of the extracted display images is adjusted to the size of the standard extraction region, and synthesized. Thus, any three-dimensional object (obstacle) present near the boundary between display images constituting the bird's eye view image is displayed.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: October 3, 2017
    Assignee: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Hidefumi Ishimoto, Yoichi Kowatari, Yoshihiro Inanobe
  • Publication number: 20170274824
    Abstract: An object is to bring an operation to recognize precisely situation of an underneath of a vessel provided at a transportation vehicle and rearward situation on the basis of camera image which is attached to the transportation vehicle. Surveillance system of the transportation vehicle according to the present invention comprises a lamp unit 13 mounted at a position under the vessel and rear end of a frame of a dump truck 1, a rearward camera 10B mounted above the lamp unit 13 directing an optical axis toward obliquely downward and having a field of view including at least partially of an axle 11 provided rear wheels 6 of the dump truck 1, a shield plate 16 provided between the lamp unit 13 and the rearward camera 10B to be extended at a position to be included at least partially in the rearward camera 10B, a monitor device provided in the cab 2 of the dump truck 11 to display camera image taken by the rearward camera 10B.
    Type: Application
    Filed: June 12, 2017
    Publication date: September 28, 2017
    Inventors: Hidefumi Ishimoto, Yoichi Kowatari, Yoshihiro Inanobe
  • Publication number: 20170072857
    Abstract: The underneath image of a self-propelled industrial machine is displayed with as wide a range as possible on a monitor with cameras that take images around the self-propelled industrial machine in the form of bird's eye view images. A view point conversion section creates the bird's eye view image by converting images from plural cameras provided on a dump truck; and a superposing process section processes the images to make the underneath area in a symbol image a transparent region corresponding to the position in the bird's eye view. An image composing section sets the symbol image at the center position and the respective bird's eye view images around the symbol image. A monitor displays the composite image composed by the image composing section.
    Type: Application
    Filed: November 4, 2016
    Publication date: March 16, 2017
    Inventors: Yoichi KOWATARI, Yoshihiro INANOBE, Katsuhiko SHIMIZU, Hidefumi ISHIMOTO
  • Publication number: 20170018070
    Abstract: A surroundings monitoring system for a working machine prevents its own vehicle shadow from having an influence on the detection of an object existing around the working machine. The surroundings monitoring system for a working machine includes: a monocular camera picks up an image of the surroundings of the working machine. A characteristic pattern extraction unit extracts characteristic patterns in the picked-up image based on a characteristic amount of the image. A shadow profile extraction unit extracts a profile of a region, which can be regarded as a shadow of the working machine in the image, based on the characteristic amount of the image; and an object detection unit detects an obstacle existing around the working machine based on the remaining characteristic patterns obtained by excluding a shadow profile characteristic patterns positioned on the profile extracted by the shadow profile extraction unit from the characteristic patterns.
    Type: Application
    Filed: March 4, 2015
    Publication date: January 19, 2017
    Inventors: Chieko ONUMA, Ryo YUMIBA, Yoshibumi FUKUDA, Yukihiro KAWAMATA, Yoichi KOWATARI, Moritaka OOTA
  • Publication number: 20170016210
    Abstract: To recognize an obstacle such as a working face which may be touched by a revolving upperstructure including a height position thereof at the time of a swing control. A plurality of first cameras 13 for forming bird's eye views which photograph obliquely lower parts of directions different from each other are arranged in a revolving upperstructure 3, a composite bird's eye view 20 is displayed on a display 15, second cameras 16R, 16L for photographing through images including corner parts from a rear end of the revolving upperstructure 3 to side parts within a visual field range are arranged in lower part positions of a swing frame 3a of the revolving upperstructure 3 so as to rotate following swing of the revolving upperstructure 3, and corner part through images 30R, 30L are displayed on the display 15 so as to be superimposed on the composite bird's eye view 20.
    Type: Application
    Filed: July 16, 2015
    Publication date: January 19, 2017
    Inventors: Yoichi KOWATARI, Kouji FUJITA, Yoshihiro INANOBE, Hiroyoshi TANAKA, Takashi KUSAMA, Moritaka OOTA, Hidefumi ISHIMOTO
  • Publication number: 20160217331
    Abstract: In an industrial machine, the work safety is further improved by eliminating blind spots from an image displayed on a monitor. A hydraulic excavator 1 which is the industrial machine is equipped with monitoring cameras 15F, 15B, 15L, 15R mounted in the respective places of a revolving upperstructure 3 in order to capture images for monitoring. A monitor 20 displays camera images 21F, 21B, 21L, 21R obtained by the cameras as well as an icon image 21C of an image illustration of the hydraulic excavator 1. The cameras 15F, 15L, 15R are mounted at the distal ends of support arms 40F, 40L, 40R to be located in positions jutting from a revolving upperstructure main unit 3a of the revolving upperstructure 3, so that a hidden area under the underside of a catwalk 14 provided on the revolving upperstructure 3 falls within the field of view.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 28, 2016
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Yoichi KOWATARI, Hidefumi ISHIMOTO, Moritaka OOTA, Yoshihiro INANOBE, Hiroyoshi TANAKA, Kouji FUJITA, Takashi KUSAMA
  • Publication number: 20160205319
    Abstract: A periphery monitoring device for a work machine includes imaging devices that capture an image of the surroundings of the work machine. An overhead view image is generated from the surroundings of the work machine based upon upper view-point images of the image devices. When generating an overhead view image of an overlap region of first and second upper view-point images relating to the images captured by the first and second imaging devices, the overhead view image generating unit, based upon a height of a virtual monitoring target, sets at least one of a first region in which the first upper view-point image is displayed and a second region in which the second upper view-point image is displayed, and also sets a third region in which a composite display image based upon the first and second upper view-point images is displayed.
    Type: Application
    Filed: February 26, 2015
    Publication date: July 14, 2016
    Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.
    Inventors: Moritaka OOTA, Yoichi KOWATARI, Yoshihiro INANOBE