Patents by Inventor Takanori Namba

Takanori Namba 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: 10953813
    Abstract: A vehicle image acquisition device includes a RGB light source unit having a red light source configured to emit red light, a green light source configured to emit green light, and a blue light source configured to emit blue light, the RGB light source unit being configured to emit respective color light at a predetermined light emission period in a predetermined direction, an image acquisition unit configured to capture reflected light returning from a target distance area at an imaging timing set according to the target distance area, and to acquire a plurality of captured images having different target distance areas, a timing controller configured to control light emission period of the respective color light and the imaging timing; and an image processor configured to combine the captured images each acquired by the respective color light to generate a color image.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: March 23, 2021
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takanori Namba, Mitsuharu Mano, Masayasu Ito
  • Patent number: 10933809
    Abstract: Provided is a vehicle lamp lighting control device which ensures proper lighting control of a lamp even when an abnormality occurs in the lamp or a camera. The vehicle lamp lighting control device includes a plurality of lamps (L-HL, R-HL) mounted on a vehicle, and each of the lamps includes a lamp unit (2) for illuminating a required region, an imaging unit (4) for imaging the required region, and a lamp control unit (5) for controlling lighting of the lamp unit (2) based on a captured image. When one lamp of the plurality of lamps is abnormal, the lamp control unit (5) of another lamp controls lighting of at least one normal lamp unit (2) of the plurality of lamps.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: March 2, 2021
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takenori Wama, Mitsuharu Mano, Takanori Namba
  • Publication number: 20200369200
    Abstract: A vehicle detecting device includes a region setting unit that sets a plurality of regions of interest having different ranges on image data acquired from an image capturing device that captures an image of a space in front of a host vehicle; and a vehicle determining unit that determines, for each of the regions of interest, presence of a front vehicle based on a luminous point present in the region and that executes a determination at different frequencies in the respective regions of interest.
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Osamu ENDO, Mitsuharu MANO, Takanori NAMBA, Masayasu ITO
  • Publication number: 20200236338
    Abstract: A first left camera unit (1025) is accommodated in a left lamp chamber and has a first angle of view (?1). A second left camera unit (1026) is accommodated in the left lamp chamber and has a second angle of view (?2) that is wider than the first angle of view (?1). A first right camera unit (1035) is accommodated in a right lamp chamber and has a third angle of view (?3). A second right camera unit (1036) is accommodated in the right lamp chamber and has a fourth angle of view (?4) that is wider than the third angle of view (?3). An image recognizer (1043) is configured to perform image recognition based on a left image that is selected one of a first left image acquired by the first left camera unit (1025) and a second left image acquired by the second left camera unit (1026), and based on a right image that is selected one of a first right image acquired by the first right camera unit (1035) and a second right image acquired by the second right camera unit (1036).
    Type: Application
    Filed: September 11, 2018
    Publication date: July 23, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kosuke Mitani, Takanori Namba, Mitsuharu Mano
  • Publication number: 20190359131
    Abstract: Provided is a vehicle lamp lighting control device which ensures proper lighting control of a lamp even when an abnormality occurs in the lamp or a camera. The vehicle lamp lighting control device includes a plurality of lamps (L-HL, R-HL) mounted on a vehicle, and each of the lamps includes a lamp unit (2) for illuminating a required region, an imaging unit (4) for imaging the required region, and a lamp control unit (5) for controlling lighting of the lamp unit (2) based on a captured image. When one lamp of the plurality of lamps is abnormal, the lamp control unit (5) of another lamp controls lighting of at least one normal lamp unit (2) of the plurality of lamps.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 28, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takenori WAMA, Mitsuharu MANO, Takanori NAMBA
  • Patent number: 10279726
    Abstract: Provided is a vehicular lamp including a main lamp unit, a sub lamp unit, and an imaging unit disposed in a lamp housing and configured to perform a light distribution control of the main lamp unit based on an image captured by the imaging unit. The sub lamp unit is disposed between the imaging unit and the main lamp unit. Light emitted from the main lamp unit is shaded by the sub lamp unit and suppressed from being incident on the imaging unit.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 7, 2019
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Takenori Wama, Mitsuharu Mano, Takanori Namba
  • Publication number: 20190016274
    Abstract: A vehicle image acquisition device includes a RGB light source unit having a red light source configured to emit red light, a green light source configured to emit green light, and a blue light source configured to emit blue light, the RGB light source unit being configured to emit respective color light at a predetermined light emission period in a predetermined direction, an image acquisition unit configured to capture reflected light returning from a target distance area at an imaging timing set according to the target distance area, and to acquire a plurality of captured images having different target distance areas, a timing controller configured to control light emission period of the respective color light and the imaging timing; and an image processor configured to combine the captured images each acquired by the respective color light to generate a color image.
    Type: Application
    Filed: December 1, 2016
    Publication date: January 17, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takanori Namba, Mitsuharu Mano, Masayasu Ito
  • Publication number: 20190004149
    Abstract: An image acquiring apparatus for a vehicle includes a light emitting unit configured to emit pulse light to a predetermined direction, an image acquisition unit configured to acquire a plurality of different images of target distance ranges by imaging reflected light returning from the target distance ranges at imaging timings set according to the target distance ranges, and a timing controller configured to control a light emission cycle of the pulse light and the imaging timings. The timing controller is configured to control at least one of the light emission cycle and the imaging timing such that among different target distance ranges, a range of a specific distance necessary for object recognition is imaged with luminance higher than that for ranges other than the range of the specific distance.
    Type: Application
    Filed: December 1, 2016
    Publication date: January 3, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Mitsuharu MANO, Takanori NAMBA, Osamu ENDO, Masayasu ITO
  • Publication number: 20190004150
    Abstract: An image acquiring apparatus for a vehicle includes a light emitting unit configured to emit pulse light to a predetermined direction, an image acquisition unit configured to acquire a plurality of different images of target distance ranges by imaging reflected light returning from the target distance ranges at imaging timings set according to the target distance ranges, and a timing controller configured to control a light emission cycle of the pulse light and the imaging timings. The timing controller is configured to set a light emission interval time to be longer than a delay time which is a time from a light emission start time point of the light emitting unit to an imaging start time point of the image acquisition unit and is required to image a longest-distance range of the target distance ranges from which the reflected light can be imaged.
    Type: Application
    Filed: December 1, 2016
    Publication date: January 3, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Mitsuharu Mano, Takanori Namba, Osamu Endo, Masayasu Ito, Yuji Higashi
  • Publication number: 20180372869
    Abstract: An image acquiring apparatus for a vehicle includes a light emitting unit configured to emit pulse light to a predetermined direction, an image acquisition unit configured to acquire a plurality of different images of target distance ranges by imaging reflected light returning from the target distance ranges at imaging timings set according to the target distance ranges, and a timing controller configured to control a light emission cycle of the pulse light and the imaging timings. The timing controller is configured to control the light emission cycle and the imaging timings such that the light emission cycle and the imaging timings are modulated by random numbers.
    Type: Application
    Filed: December 1, 2016
    Publication date: December 27, 2018
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takanori Namba, Masayasu Ito, Mitsuharu Mano
  • Publication number: 20180170240
    Abstract: Provided is a vehicular lamp including a main lamp unit, a sub lamp unit, and an imaging unit disposed in a lamp housing and configured to perform a light distribution control of the main lamp unit based on an image captured by the imaging unit. The sub lamp unit is disposed between the imaging unit and the main lamp unit. Light emitted from the main lamp unit is shaded by the sub lamp unit and suppressed from being incident on the imaging unit.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 21, 2018
    Inventors: Takenori Wama, Mitsuharu Mano, Takanori Namba
  • Patent number: 9423095
    Abstract: A vehicular lamp includes a light source, a cooling fan configured to cool the light source, a light source power supply module configured to drive the light source for emission of light, and a control module configured to execute an abnormal rotation detection of the cooling fan and to control the light source power supply module so that the quantity of light emitted from the light source is reduced in response to a detection of abnormal rotation.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: August 23, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Kazushi Yoshikawa, Tomokazu Suzuki, Takanori Namba, Toshiyuki Tsuchiya, Masato Watanabe
  • Patent number: 9347659
    Abstract: In an automotive headlamp, a light-emitting module is configured such that a light-emitting element and a control circuit unit for controlling the lighting of the light-emitting element are structured integrally with each other. A control circuit unit in a position anterior to the light-emitting element in a lamp unit is located below a shade section so that the control circuit unit can be clear of the path of light used to form a low beam light distribution pattern of the light emitted by the light-emitting element. In this setting, the light-emitting element is so located that a main optical axis Ax2 is perpendicular respect to an optical axis Ax1 of the lamp unit and that a light-emitting portion of the light-emitting element protrudes higher than the control circuit unit in the direction of the main optical axis Ax2.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: May 24, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takashi Inoue, Tetsuya Suzuki, Akihiro Matsumoto, Naoki Sone, Takanori Namba, Hidetada Tanaka
  • Publication number: 20160025321
    Abstract: In an automotive headlamp, a light-emitting module is configured such that a light-emitting element and a control circuit unit for controlling the lighting of the light-emitting element are structured integrally with each other. A control circuit unit in a position anterior to the light-emitting element in a lamp unit is located below a shade section so that the control circuit unit can be clear of the path of light used to form a low beam light distribution pattern of the light emitted by the light-emitting element. In this setting, the light-emitting element is so located that a main optical axis Ax2 is perpendicular respect to an optical axis Ax1 of the lamp unit and that a light-emitting portion of the light-emitting element protrudes higher than the control circuit unit in the direction of the main optical axis Ax2.
    Type: Application
    Filed: August 4, 2015
    Publication date: January 28, 2016
    Applicant: Koito Manufacturing Co., Ltd.
    Inventors: Takashi INOUE, Tetsuya SUZUKI, Akihiro MATSUMOTO, Naoki SONE, Takanori NAMBA, Hidetada TANAKA
  • Patent number: 9226349
    Abstract: A semiconductor light source lighting circuit is provided with: a switching regulator that generates a drive current of a semiconductor light source using a switching element; and a control circuit that controls ON/OFF of the switching element. The control circuit is provided with: a comparator that compares the drive current and a target value; a counter that counts a digital value in a count direction determined by a comparison result of the comparator; a digital-analog converter that converts the digital value into an analog signal; and a drive circuit that controls the ON/OFF of the switching element based on the analog signal. The counter counts the digital value at a speed determined by an ON/OFF cycle of the switching element.
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: December 29, 2015
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Satoshi Kikuchi, Takanori Namba, Masayasu Ito
  • Patent number: 9134003
    Abstract: In an automotive headlamp, a light-emitting module is configured such that a light-emitting element and a control circuit unit for controlling the lighting of the light-emitting element are structured integrally with each other. A control circuit unit in a position anterior to the light-emitting element in a lamp unit is located below a shade section so that the control circuit unit can be clear of the path of light used to form a low beam light distribution pattern of the light emitted by the light-emitting element. In this setting, the light-emitting element is so located that a main optical axis Ax2 is perpendicular respect to an optical axis Ax1 of the lamp unit and that a light-emitting portion of the light-emitting element protrudes higher than the control circuit unit in the direction of the main optical axis Ax2.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: September 15, 2015
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takashi Inoue, Tetsuya Suzuki, Akihiro Matsumoto, Naoki Sone, Takanori Namba, Hidetada Tanaka
  • Patent number: 8970136
    Abstract: A semiconductor light source lighting circuit includes a voltage step-down unit configured to generate a drive voltage lower than an input voltage by turning on or off a first switching element in a voltage step-down mode, a voltage step-up unit configured to generate the drive voltage higher than the input voltage by turning on or off a second switching element in a voltage step-up mode, and a controller. The controller includes a charge pump unit configured to repeat charging from the drive voltage to a second capacitor and discharging from the charged second capacitor to the first capacitor in the voltage step-up mode, and a switch drive unit configured to apply a voltage higher than the voltage at the other end of the first switching element to the control terminal of the first switching element by using a voltage of the charged first capacitor.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: March 3, 2015
    Assignee: Panasonic Corporation
    Inventors: Satoshi Kikuchi, Takanori Namba, Masayasu Ito, Daijiro Arisawa, Mikio Motomori
  • Patent number: 8947017
    Abstract: A circuit for lighting a semiconductor light source is provided. The circuit includes: a switching regulator including a switching element and configured to generate a drive current for the semiconductor light source using the switching element; and a control circuit configured to control on-off of the switching element such that the magnitude of the drive current comes close to a targeted value. The control circuit includes: a comparator configured to compare the magnitude of the drive current with the targeted value; an up/down counter configured to count a digital value in a counting-up direction or counting-down direction, based on a comparison result of the comparator; a digital-to-analog converter configured to convert the counted digital value into an analog signal; and a drive circuit configured to control on/off of the switching element based on the analog signal.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: February 3, 2015
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Satoshi Kikuchi, Fuminori Shiotsu, Takanori Namba, Masayasu Ito
  • Patent number: 8928244
    Abstract: A semiconductor light source lighting circuit includes a switching regulator that produces a drive current ILED with a switching element, and a control circuit that controls turning on and off of the switching element so that the magnitude of the drive current ILED approaches a target value. The control circuit includes an error comparator that compares the drive current ILED and the target value, an up/down counter that performs a counting operation, in which the control digital value is incremented or decremented based on the result of the comparison, a D/A converter that converts the control digital value into an analog duty ratio setting signal S4, and a drive circuit that controls the turning on and off of the switching element based on the signal S4. The up/down counter stops the counting operation when the switching regulator is brought into the inactive state.
    Type: Grant
    Filed: May 9, 2012
    Date of Patent: January 6, 2015
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Satoshi Kikuchi, Fuminori Shiotsu, Takanori Namba, Masayasu Ito
  • Publication number: 20140252950
    Abstract: A semiconductor light source lighting circuit includes a voltage step-down unit configured to generate a drive voltage lower than an input voltage by turning on or off a first switching element in a voltage step-down mode, a voltage step-up unit configured to generate the drive voltage higher than the input voltage by turning on or off a second switching element in a voltage step-up mode, and a controller. The controller includes a charge pump unit configured to repeat charging from the drive voltage to a second capacitor and discharging from the charged second capacitor to the first capacitor in the voltage step-up mode, and a switch drive unit configured to apply a voltage higher than the voltage at the other end of the first switching element to the control terminal of the first switching element by using a voltage of the charged first capacitor.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 11, 2014
    Applicants: PANASONIC CORPORATION, KOITO MANUFACTURING CO., LTD.
    Inventors: Satoshi KIKUCHI, Takanori NAMBA, Masayasu ITO, Daijiro ARISAWA, Mikio MOTOMORI