Patents by Inventor Yoshifumi Izumi

Yoshifumi Izumi 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: 20220371405
    Abstract: A heater element for heating a vehicle interior includes a pillar shaped honeycomb structure portion having: an outer peripheral wall; and partition walls arranged on an inner side of the outer peripheral wall, the partition walls defining a plurality of cells, each of the cells forming a flow path from a first end face to a second end face. The outer peripheral wall and the partition walls are made of a material having PTC characteristics. The heater element further includes a dense insulating film that covers at least a part of the pillar shaped honeycomb structure portion.
    Type: Application
    Filed: August 5, 2022
    Publication date: November 24, 2022
    Applicant: NGK Insulators, Ltd.
    Inventors: Yukio MIYAIRI, Masaaki MASUDA, Yoshifumi TAKAGI, Yunie IZUMI, Toru HAYASE
  • Patent number: 10719721
    Abstract: An image processing apparatus includes: a storage unit configured to store map information to which object information indicating an object and a position thereof is added, and a plurality of different classifiers for classifying an object in an image; an object detecting unit configured to detect an object in a target image; and an object recognizing unit configured to select any of the classifiers based on a photographing position that is a position at which the target image has been photographed and the object information added to the map information and, using the selected classifier, recognize the object detected by the object detecting unit.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: July 21, 2020
    Assignee: HITACHI, LTD.
    Inventors: Hideharu Hattori, Yoshifumi Izumi
  • Patent number: 10417751
    Abstract: An image processing apparatus includes: a contrast correcting unit which creates a contrast-corrected image in which contrast of an input image photographed by an in-vehicle camera that is mounted to a vehicle is corrected; a color analyzing unit which creates a color-corrected image in which a color of the input image is corrected; an object detecting unit which detects a first target object included in the input image based on the contrast-corrected image, and which detects a second target object included in the input image based on the color-corrected image; and an object association analyzing unit which recognizes the first target object and the second target object based on a time series association between the first target object and the second target object detected by the object detecting unit.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: September 17, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Hideharu Hattori, Yoshifumi Izumi
  • Patent number: 10303960
    Abstract: An image processing device includes a contrasting correction unit, a color analysis unit, an object detection unit, and an object relation analysis unit. The contrasting correction unit creates a contrasting corrected image by correcting contrasting of an input image captured by a vehicle camera. The color analysis unit creates a color corrected image by correcting colors of the input image. The object detection unit detects a main sign included in the input image based on the contrasting corrected image and detects an auxiliary sign included in the input image based on the color corrected image. The object relation analysis unit recognizes a traffic sign as a combination of a main sign and auxiliary sign by associating the main sign and the auxiliary sign with each other based on a positional relationship between the main and auxiliary signs, which are detected by the object detection unit, in the input image.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: May 28, 2019
    Assignee: HITACHI, LTD.
    Inventors: Hideharu Hattori, Yoshifumi Izumi
  • Patent number: 10204462
    Abstract: A drive diagnosis device includes: a storage unit in which travel records of a moving body and past drive diagnosis results from past drive diagnoses executed for the moving body are stored; and a diagnosis processing unit that executes a drive diagnosis based upon driver's skills for driving the moving body, and personal characteristics of the driver and/or experience of the driver by using the travel records and the past drive diagnosis results stored in the storage unit.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: February 12, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Yosuke Isomura, Kenji Suzuki, Yoshifumi Izumi
  • Publication number: 20180173973
    Abstract: An image processing apparatus includes: a storage unit configured to store map information to which object information indicating an object and a position thereof is added, and a plurality of different classifiers for classifying an object in an image; an object detecting unit configured to detect an object in a target image; and an object recognizing unit configured to select any of the classifiers based on a photographing position that is a position at which the target image has been photographed and the object information added to the map information and, using the selected classifier, recognize the object detected by the object detecting unit.
    Type: Application
    Filed: November 20, 2017
    Publication date: June 21, 2018
    Inventors: Hideharu HATTORI, Yoshifumi IZUMI
  • Patent number: 9984303
    Abstract: Provided is a technique for, even when the lightness of an image contained in a video changes, accurately separating the background of the image and an object in the background and thus efficiently collecting images that contain a target object to be detected, and also suppressing the amount of data communicated between a terminal device and a server. In the present invention, a terminal device accurately separates the background of an image and an object (i.e., a target object to be detected) in the background so as to simply detect the object in the background, and transfers to a server only candidate images that contain the detected object. Meanwhile, as such simple target object detection may partially involve erroneous detection, the server closely examines the candidate images to identify the target object to be detected, and thus recognizes the object.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: May 29, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Hideharu Hattori, Tatsuhiko Kagehiro, Yoshifumi Izumi
  • Publication number: 20180114299
    Abstract: An image processing apparatus includes: a contrast correcting unit which creates a contrast-corrected image in which contrast of an input image photographed by an in-vehicle camera that is mounted to a vehicle is corrected; a color analyzing unit which creates a color-corrected image in which a color of the input image is corrected; an object detecting unit which detects a first target object included in the input image based on the contrast-corrected image, and which detects a second target object included in the input image based on the color-corrected image; and an object association analyzing unit which recognizes the first target object and the second target object based on a time series association between the first target object and the second target object detected by the object detecting unit.
    Type: Application
    Filed: October 23, 2017
    Publication date: April 26, 2018
    Inventors: Hideharu HATTORI, Yoshifumi IZUMI
  • Publication number: 20170287238
    Abstract: A drive diagnosis device includes: a storage unit in which travel records of a moving body and past drive diagnosis results from past drive diagnoses executed for the moving body are stored; and a diagnosis processing unit that executes a drive diagnosis based upon driver's skills for driving the moving body, and personal characteristics of the driver and/or experience of the driver by using the travel records and the past drive diagnosis results stored in the storage unit.
    Type: Application
    Filed: March 24, 2017
    Publication date: October 5, 2017
    Applicant: Hitachi, Ltd.
    Inventors: YOSUKE ISOMURA, Kenji Suzuki, Yoshifumi Izumi
  • Publication number: 20170236015
    Abstract: An image processing device includes a contrasting correction unit, a color analysis unit, an object detection unit, and an object relation analysis unit. The contrasting correction unit creates a contrasting corrected image by correcting contrasting of an input image captured by a vehicle camera. The color analysis unit creates a color corrected image by correcting colors of the input image. The object detection unit detects a main sign included in the input image based on the contrasting corrected image and detects an auxiliary sign included in the input image based on the color corrected image. The object relation analysis unit recognizes a traffic sign as a combination of a main sign and auxiliary sign by associating the main sign and the auxiliary sign with each other based on a positional relationship between the main and auxiliary signs, which are detected by the object detection unit, in the input image.
    Type: Application
    Filed: January 18, 2017
    Publication date: August 17, 2017
    Applicant: HITACHI, LTD.
    Inventors: Hideharu HATTORI, Yoshifumi IZUMI
  • Publication number: 20170219371
    Abstract: A navigation system which guides a moving body to a destination, includes: a plurality of terminal devices, each installed in one of a plurality of moving bodies; and a center device engaged in communication with the plurality of terminal devices via a communication line, wherein: the center device includes a travel-completion information generation unit that generates travel-completion information pertaining to travel-completed records based upon information related to traveling conditions of one of the plurality of moving bodies, a storage unit in which sets of the travel-completion information corresponding to the plurality of moving bodies are stored, and a route search unit that searches for a recommended route to the destination based upon the sets of the travel-completion information; and the terminal device guides the moving body to the destination based upon the recommended route.
    Type: Application
    Filed: January 5, 2017
    Publication date: August 3, 2017
    Applicant: Hitachi, Ltd.
    Inventors: Kenji Suzuki, Yoshifumi Izumi, Yosuke Isomura
  • Patent number: 9707971
    Abstract: A driving characteristics diagnosis device, includes: an information acquisition unit that acquires information relating to the operational state of a vehicle; a dangerous driving detection processing unit that detects dangerous driving by a user of the vehicle on the basis of information acquired by the information acquisition unit; a cause estimation processing unit that estimates a cause of the dangerous driving; a driving characteristics diagnosis processing unit that performs diagnosis of driving characteristics for the user on the basis of a result of detection of the dangerous driving by the dangerous driving detection processing unit and the cause of the dangerous driving estimated by the cause estimation processing unit; and a diagnosis result output unit that outputs the result of the diagnosis of driving characteristics diagnosed by the driving characteristics diagnosis processing unit.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: July 18, 2017
    Assignee: HITACHI, LTD.
    Inventors: Toshimitsu Takahashi, Tatsuaki Osafune, Yoshifumi Izumi, Noboru Kiyama
  • Patent number: 9672606
    Abstract: Even when the brightness of an image in a video changes, detection of an object in the background is realized by accurately separating the object in the background from the background of the image. An image processing device in accordance with the present invention executes a process of converting a color space of a processing target image and acquiring color information on the converted color space, a process of calculating, for the target image, an average value of the brightness of color information on a target region that contains an object to be detected, and a process of comparing, for the target region, the brightness of color information on each pixel with the calculated average value, a process of generating a corrected image with corrected brightness/darkness, and a process of extracting the object on the basis of the corrected image (See FIG. 1).
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: June 6, 2017
    Assignee: HITACHI, LTD.
    Inventors: Hideharu Hattori, Yoshifumi Izumi
  • Patent number: 9648459
    Abstract: An information processing device includes: a communication unit that receives positions from a plurality of terminals each capable of calculating a position indicating a latitude and a longitude; an area determination unit that makes a decision, based upon the positions received at the communication unit, as to in which of areas defined in advance based upon latitudes and longitudes thereof, the terminals are located; and a separation determination unit that calculates an extent of separation to which an area where one terminal is located and an area where another terminal is located are separated from each other, and determines whether a predetermined relationship is achieved with regard to the extent of separation between the one terminal and the other terminal.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 9, 2017
    Assignee: Hitachi, Ltd.
    Inventors: Yoshifumi Izumi, Yosuke Uetake, Toshio Yamashita
  • Publication number: 20160342855
    Abstract: Provided is a technique for, even when the lightness of an image contained in a video changes, accurately separating the background of the image and an object in the background and thus efficiently collecting images that contain a target object to be detected, and also suppressing the amount of data communicated between a terminal device and a server. In the present invention, a terminal device accurately separates the background of an image and an object (i.e., a target object to be detected) in the background so as to simply detect the object in the background, and transfers to a server only candidate images that contain the detected object. Meanwhile, as such simple target object detection may partially involve erroneous detection, the server closely examines the candidate images to identify the target object to be detected, and thus recognizes the object.
    Type: Application
    Filed: May 19, 2016
    Publication date: November 24, 2016
    Inventors: Hideharu HATTORI, Tatsuhiko KAGEHIRO, Yoshifumi IZUMI
  • Patent number: 9449437
    Abstract: A method of diagnosing operating characteristics of a vehicle by a server device includes: obtaining operating characteristics information relative to the operating characteristics of the vehicle; and diagnosing the operating characteristics of the vehicle based upon feature information relative to a feature of a driver of the vehicle registered in advance in the server device and the operating characteristics information obtained from the vehicle.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: September 20, 2016
    Assignee: HITACHI, LTD.
    Inventors: Yoshifumi Izumi, Noboru Kiyama, Tsuneo Sobue, Toshimitsu Takahashi
  • Publication number: 20160157058
    Abstract: An information processing device includes: a communication unit that receives positions from a plurality of terminals each capable of calculating a position indicating a latitude and a longitude; an area determination unit that makes a decision, based upon the positions received at the communication unit, as to in which of areas defined in advance based upon latitudes and longitudes thereof, the terminals are located; and a separation determination unit that calculates an extent of separation to which an area where one terminal is located and an area where another terminal is located are separated from each other, and determines whether a predetermined relationship is achieved with regard to the extent of separation between the one terminal and the other terminal.
    Type: Application
    Filed: November 4, 2015
    Publication date: June 2, 2016
    Inventors: Yoshifumi IZUMI, Yosuke UETAKE, Toshio YAMASHITA
  • Publication number: 20160117848
    Abstract: Even when the brightness of an image in a video changes, detection of an object in the background is realized by accurately separating the object in the background from the background of the image. An image processing device in accordance with the present invention executes a process of converting a color space of a processing target image and acquiring color information on the converted color space, a process of calculating, for the target image, an average value of the brightness of color information on a target region that contains an object to be detected, and a process of comparing, for the target region, the brightness of color information on each pixel with the calculated average value, a process of generating a corrected image with corrected brightness/darkness, and a process of extracting the object on the basis of the corrected image (See FIG. 1).
    Type: Application
    Filed: June 18, 2015
    Publication date: April 28, 2016
    Inventors: Hideharu HATTORI, Yoshifumi IZUMI
  • Publication number: 20160101785
    Abstract: A driving characteristics diagnosis device, includes: an information acquisition unit that acquires information relating to the operational state of a vehicle; a dangerous driving detection processing unit that detects dangerous driving by a user of the vehicle on the basis of information acquired by the information acquisition unit; a cause estimation processing unit that estimates a cause of the dangerous driving; a driving characteristics diagnosis processing unit that performs diagnosis of driving characteristics for the user on the basis of a result of detection of the dangerous driving by the dangerous driving detection processing unit and the cause of the dangerous driving estimated by the cause estimation processing unit; and a diagnosis result output unit that outputs the result of the diagnosis of driving characteristics diagnosed by the driving characteristics diagnosis processing unit.
    Type: Application
    Filed: May 22, 2015
    Publication date: April 14, 2016
    Applicant: Hitachi, Ltd.
    Inventors: TOSHIMITSU TAKAHASHI, Tatsuaki Osafune, Yoshifumi Izumi, Noboru Kiyama
  • Publication number: 20150298705
    Abstract: A computer-readable program product contains a program for a portable device, The program is executed upon a portable device comprising an acceleration sensor that detects accelerations in three axial directions and a calculation device. The program causes the calculation device to execute: a first process of detecting a stationary state of the portable device, and calculating tilt angles of the portable device; a second process of detecting the straight-ahead driving state of a vehicle to which the portable device is mounted, and calculating a rotational angle of the portable device with respect to a direction of progression of the vehicle; and a third process of converting the accelerations detected by the acceleration sensor to accelerations of the vehicle, on the basis of the tilt angles and the rotational angle.
    Type: Application
    Filed: April 21, 2015
    Publication date: October 22, 2015
    Applicant: Hitachi, Ltd.
    Inventors: NOBORU KIYAMA, Tatsuaki Osafune, Tsuneo Sobue, Toshimitsu Takahashi, Yoshifumi Izumi