Patents by Inventor Koji Doi

Koji Doi 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: 20230096864
    Abstract: There is provided an image processing device capable of easily reducing a burden related to image recognition and obtaining stable recognition performance even when a posture of a vehicle changes from moment to moment. An image processing device 50 includes a storage unit 5 and an image processing unit 6. The storage unit 5 stores a pickup image acquired by an image pickup unit 4 mounted on the vehicle and an inclination angle transmitted from an inclination angle sensor 2 that detects the inclination angle of the vehicle. The image processing unit 6 performs image processing on the pickup image.
    Type: Application
    Filed: December 25, 2020
    Publication date: March 30, 2023
    Applicant: HITACHI ASTEMIO, LTD
    Inventors: Tetsuya YAMADA, Koji DOI, Takeshi SHIMA, Haruki MATONO, Hideaki KIDO
  • Publication number: 20220415765
    Abstract: A semiconductor module includes a resin molded part encapsulating a semiconductor chip, a first terminal having a plate shape, and a second terminal having a plate shape. The first terminal and the second terminal are disposed on top of the other in a thickness direction. The first terminal is exposed from a first surface of the resin molded part, and the second terminal is projected from a second surface of the resin molded part to an outside of the resin molded part, the second surface being different from the first surface from which the first terminal is exposed.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 29, 2022
    Inventors: HIROSHI ISHINO, HIROKAZU SAMPEI, KATSUYA KUMAGAI, KOJI DOI
  • Patent number: 10372261
    Abstract: A touch panel of capacitance type includes plural X-electrodes, plural Y-electrodes, and a Z-electrode. Each of the X-electrode and the Y-electrode is formed to have pad portions and thin line portions alternately arranged in an extending direction. The pad portion of the X-electrode and the pad portion of the Y-electrode are arranged without being overlapped in a planar view. The Z-electrode is electrically in a floating state, and formed to be overlapped with both the adjacent X-electrode and the Y-electrode in a planar view. The touched position is calculated based on a local minimal point as an intersection with the interelectrode capacitance value that is equal to or smaller than each of the interelectrode capacitance values of four peripheral intersections among those at the intersections between the plural X-electrodes and the plural Y-electrodes.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: August 6, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Doi, Koji Nagata
  • Patent number: 10351048
    Abstract: An increase in the execution period of light distribution control is inhibited by reducing the number of images required for the light distribution control while achieving both object detection and light distribution control function. The present invention has an object detection unit for performing an object detection process, a light point detection unit for performing a light point detection process, and a light distribution control unit for controlling the illumination state of headlights on the basis of the result of the object detection process and the result of the light point detection process.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 16, 2019
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Hiroki Moizumi, Haruki Matono, Koji Doi, Takeshi Nagasaki
  • Patent number: 10303294
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 28, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Nagata, Koji Doi
  • Publication number: 20190121491
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Application
    Filed: December 21, 2018
    Publication date: April 25, 2019
    Inventors: Koji NAGATA, Koji Doi
  • Patent number: 10198117
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: February 5, 2019
    Assignee: Japan Display Inc.
    Inventors: Koji Nagata, Koji Doi
  • Patent number: 10148938
    Abstract: A vehicle-mounted image recognition device addresses the problem of obtaining a vehicle-mounted image recognition device capable of improving the efficiency of image processing.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 4, 2018
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Takeshi Nagasaki, Haruki Matono, Yoshiyuki Mutou, Koji Doi, Yuhi Shiina
  • Publication number: 20180319319
    Abstract: An increase in the execution period of light distribution control is inhibited by reducing the number of images required for the light distribution control while achieving both object detection and light distribution control function. The present invention has an object detection unit for performing an object detection process, a light point detection unit for performing a light point detection process, and a light distribution control unit for controlling the illumination state of headlights on the basis of the result of the object detection process and the result of the light point detection process.
    Type: Application
    Filed: November 9, 2016
    Publication date: November 8, 2018
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Hiroki MOIZUMI, Haruki MATONO, Koji DOI, Takeshi NAGASAKI
  • Publication number: 20170344183
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Application
    Filed: August 21, 2017
    Publication date: November 30, 2017
    Inventors: Koji Nagata, Koji Doi
  • Patent number: 9766748
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 19, 2017
    Assignee: Japan Display Inc.
    Inventors: Koji Nagata, Koji Doi
  • Publication number: 20170244954
    Abstract: The present invention addresses the problem of obtaining a vehicle-mounted image recognition device capable of improving the efficiency of image processing.
    Type: Application
    Filed: August 19, 2015
    Publication date: August 24, 2017
    Inventors: Takeshi NAGASAKI, Haruki MATONO, Yoshiyuki MUTOU, Koji DOI, Yuhi SHIINA
  • Patent number: 9678598
    Abstract: A capacitive touch panel includes a scanning circuit portion for inputting a drive voltage to each scanning electrode sequentially in 1st to n-th sub detection periods, a capacitance detection circuit portion for detecting a capacitance detection signal of the each detecting electrode in the 1st to n-th groups, and a control circuit portion for calculating a capacitance detection signal change amount from the capacitance detection signals of a plurality of the detecting electrodes detected by the capacitance detection circuit portion, and calculating coordinates of a touch position based on the capacitance detection signal change amounts.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: June 13, 2017
    Assignee: Japan Display Inc.
    Inventors: Norio Mamba, Koji Doi
  • Publication number: 20170153755
    Abstract: A touch panel of capacitance type includes plural X-electrodes, plural Y-electrodes, and a Z-electrode. Each of the X-electrode and the Y-electrode is formed to have pad portions and thin line portions alternately arranged in an extending direction. The pad portion of the X-electrode and the pad portion of the Y-electrode are arranged without being overlapped in a planar view. The Z-electrode is electrically in a floating state, and formed to be overlapped with both the adjacent X-electrode and the Y-electrode in a planar view. The touched position is calculated based on a local minimal point as an intersection with the interelectrode capacitance value that is equal to or smaller than each of the interelectrode capacitance values of four peripheral intersections among those at the intersections between the plural X-electrodes and the plural Y-electrodes.
    Type: Application
    Filed: January 3, 2017
    Publication date: June 1, 2017
    Inventors: Koji Doi, Koji Nagata
  • Publication number: 20170097732
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Application
    Filed: December 21, 2016
    Publication date: April 6, 2017
    Inventors: Koji NAGATA, Koji Doi
  • Patent number: 9569038
    Abstract: A touch panel of capacitance type includes plural X-electrodes, plural Y-electrodes, and a Z-electrode. Each of the X-electrode and the Y-electrode is formed to have pad portions and thin line portions alternately arranged in an extending direction. The pad portion of the X-electrode and the pad portion of the Y-electrode are arranged without being overlapped in a planar view. The Z-electrode is electrically in a floating state, and formed to be overlapped with both the adjacent X-electrode and the Y-electrode in a planar view. The touched position is calculated based on a local minimal point as an intersection with the interelectrode capacitance value that is equal to or smaller than each of the interelectrode capacitance values of four peripheral intersections among those at the intersections between the plural X-electrodes and the plural Y-electrodes.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 14, 2017
    Assignee: Japan Display Inc.
    Inventors: Koji Doi, Koji Nagata
  • Patent number: 9563307
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: February 7, 2017
    Assignee: Japan Display Inc.
    Inventors: Koji Nagata, Koji Doi
  • Publication number: 20160077661
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Application
    Filed: November 19, 2015
    Publication date: March 17, 2016
    Inventors: Koji NAGATA, Koji Doi
  • Patent number: 9239644
    Abstract: In a liquid crystal display device, a second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode divided into a plurality of blocks. The counter electrodes of the respective blocks are commonly provided for the respective pixels of plural continuous display lines, the counter electrodes of the respective blocks double scanning electrodes of the touch panel, and a driver circuit that applies a counter voltage and a touch panel scanning voltage to the counter electrodes of the respective blocks is provided. The driver circuit sequentially applies the touch panel scanning voltage to the counter electrodes of the respective blocks in plural times, while a drive pulse for displaying an image on a liquid crystal display panel is not varied, and drive frequencies of the respective touch panel scanning voltages are different from each other.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: January 19, 2016
    Assignee: Japan Display Inc.
    Inventors: Koji Doi, Kouji Hayakawa
  • Patent number: 9223434
    Abstract: A display device includes a display panel, a touch panel control unit, a plurality of scanning electrodes formed on the display panel, a plurality of detection electrodes formed on the display panel so as to intersect with the plurality of scanning electrodes, a drive signal supply unit for inputting a drive signal to each of the scanning electrodes, and a detection unit for detecting a detection signal from each of the detection electrodes. The touch panel control unit supplies the driving signal to each of the scanning electrodes from the drive signal supply unit to enable detection of a touch position of a detection object based on the detection signal detected, and supplies the driving signal to all of the scanning electrodes collectively from the drive signal supply unit to enable detection of approach of the detection object to the touch panel based on the detection signal detected.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: December 29, 2015
    Assignee: Japan Display Inc.
    Inventors: Koji Nagata, Koji Doi