Patents by Inventor Ko Sato

Ko Sato 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: 10611374
    Abstract: A drive control method controls a drive control amount of a subject vehicle so that the subject vehicle may take a prescribed position with respect to lane markings of a lane in which the subject vehicle is running and reduces a drive control amount adopted when a lateral position of one of the lane markings along which the subject vehicle is running moves in a different direction from a lateral position of the other lane marking smaller than a drive control amount adopted when lateral positions of both the lane markings move in the same direction.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 7, 2020
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ko Sato, Masahiro Kobayashi, Yasuhisa Taira, Osamu Fukata
  • Publication number: 20200095949
    Abstract: An engine control device includes an air amount detector, a requested torque acquisitor, a search axis value acquisitor, a storage, and a control target value acquisitor. The air amount detector detects an actual amount of intake air. The requested torque acquisitor acquires a requested torque. In a region of a lean burn region where the actual amount of intake air increases as the requested torque increases, the search axis value acquisitor acquires a value corresponding to the actual amount of intake air. In a region of the of the lean burn region where the actual amount of intake air does not increase as the requested torque increases, the search axis value acquisitor acquires a value corresponding to the requested torque. The control target value acquisitor acquires a control target value of an engine device by searching a device control map using an acquired search axis value.
    Type: Application
    Filed: May 29, 2019
    Publication date: March 26, 2020
    Inventors: Kazunari Wakimoto, Ko Sato
  • Patent number: 10464560
    Abstract: A travel control apparatus includes: a recognition processing section that recognizes a lane line of a traffic lane in which a host vehicle is traveling; a vehicle control section that performs lane keeping control such that a lateral position of the host vehicle is at a predetermined position with respect to the lane line; a radar that detects a preceding vehicle traveling ahead of the host vehicle; and a cancelling section that, when the recognition processing section does not detect the lane line, cancels the lane keeping control when a predetermined time has passed after the lane line is no longer detected. The predetermined time is shorter when a following distance between the host vehicle and the preceding vehicle is longer than a predetermined value than when the following distance is shorter than or equal to the predetermined value.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: November 5, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ko Sato, Masahiro Kobayashi, Yasuhisa Taira, Osamu Fukata
  • Publication number: 20190308631
    Abstract: A travel control method controls travel of an own vehicle to locate a lateral position of the own vehicle at a predetermined position with respect to a lane marker of a lane in which the own vehicle is traveling or with respect to a preceding vehicle, and reduces a control amount on travel from when control on the travel of the own vehicle is started until a predetermined time passes to be smaller than a control amount on the travel after the predetermined time has passed.
    Type: Application
    Filed: June 6, 2017
    Publication date: October 10, 2019
    Inventors: Ko Sato, Masahiro Kobayashi, Yasuhisa Taira, Osamu Fukata
  • Publication number: 20190308623
    Abstract: A drive control method controls a drive control amount of a subject vehicle so that the subject vehicle may take a prescribed position with respect to lane markings of a lane in which the subject vehicle is running and reduces a drive control amount adopted when a lateral position of one of the lane markings along which the subject vehicle is running moves in a different direction from a lateral position of the other lane marking smaller than a drive control amount adopted when lateral positions of both the lane markings move in the same direction.
    Type: Application
    Filed: June 7, 2017
    Publication date: October 10, 2019
    Applicant: Nissan Motor Co., Ltd.
    Inventors: Ko Sato, Masahiro Kobayashi, Yasuhisa Taira, Osamu Fukata
  • Publication number: 20190299988
    Abstract: A travel control apparatus, when a lane line of the traffic lane that had been being detected is no longer detected, estimates an imaginary lane line based on the position of the lane line detected in the past and controls the travel of the host vehicle such that the host vehicle is at a predetermined position with respect to the imaginary lane line.
    Type: Application
    Filed: June 13, 2017
    Publication date: October 3, 2019
    Inventors: Ko Sato, Masahiro Kobayashi, Yasuhisa Taira, Osamu Fukata
  • Publication number: 20190256092
    Abstract: A travel control method of the present invention includes: recognizing the lane in which the host vehicle is traveling; controlling the travel of the host vehicle such that the host vehicle is situated at a predetermined position relative to a boundary line of the lane; detecting an increase in the lane width of the lane in which the host vehicle is traveling; and, if determining that one of the boundary lines situated to the left and the right of the host vehicle is a dashed line, controlling the travel of the host vehicle based on the dashed boundary line.
    Type: Application
    Filed: June 6, 2017
    Publication date: August 22, 2019
    Inventors: Ko Sato, Masahiro Kobayashi, Yasuhisa Taira, Osamu Fukata
  • Publication number: 20190241182
    Abstract: A travel control apparatus includes: a recognition processing section that recognizes a lane line of a traffic lane in which a host vehicle is traveling; a vehicle control section that performs lane keeping control such that a lateral position of the host vehicle is at a predetermined position with respect to the lane line; a radar that detects a preceding vehicle traveling ahead of the host vehicle; and a cancelling section that, when the recognition processing section does not detect the lane line, cancels the lane keeping control when a predetermined time has passed after the lane line is no longer detected. The predetermined time is shorter when a following distance between the host vehicle and the preceding vehicle is longer than a predetermined value than when the following distance is shorter than or equal to the predetermined value.
    Type: Application
    Filed: June 13, 2017
    Publication date: August 8, 2019
    Inventors: Ko Sato, Masahiro Kobayashi, Yasuhisa Taira, Osamu Fukata
  • Patent number: 9629900
    Abstract: The present invention provides oral compositions which contain interferon ? (IFN?) as an active ingredient for preventing and/or treating periodontal disease. The number of causative microorganisms of periodontal disease can be suppressed by administering the compositions into the oral cavity. IFN? of the present invention can produce a sufficient effect even when administered at a very low dose. Furthermore, the compositions of the present invention can also be readily administered to animals such as dogs by formulating them into feed or such.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: April 25, 2017
    Assignees: Hokusan Co. Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Kuniaki Yoshioka, Ko Sato, Toru Gotanda, Akira Ito, Emiko Isogai, Kazuaki Takehara, Nobutoshi Maehara
  • Publication number: 20170110063
    Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel, a backlight, a liquid crystal driving unit and a backlight driving unit. In each area, when the brightness level calculated based on the video signal is greater than or equal to a first threshold level, the backlight driving unit fixes a driving current supplied to the light emitting elements in one frame period and controls a lighting time according to the calculated brightness level. In each area, when the brightness level is less than the first threshold level, the backlight driving unit fixes the lighting time of the light emitting elements in one frame period and controls the driving current according to the calculated brightness level.
    Type: Application
    Filed: May 19, 2016
    Publication date: April 20, 2017
    Inventors: Takayuki Arai, Toshio Obayashi, Masaki Tsuchida, Ko Sato
  • Publication number: 20160015787
    Abstract: The present invention provides oral compositions which contain interferon ? (IFN?) as an active ingredient for preventing and/or treating periodontal disease. The number of causative microorganisms of periodontal disease can be suppressed by administering the compositions into the oral cavity. IFN? of the present invention can produce a sufficient effect even when administered at a very low dose. Furthermore, the compositions of the present invention can also be readily administered to animals such as dogs by formulating them into feed or such.
    Type: Application
    Filed: February 24, 2015
    Publication date: January 21, 2016
    Applicants: Hokusan Co. Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Kuniaki Yoshioka, Ko Sato, Toru Gotanda, Akira Ito, Emiko Isogai, Kazuaki Takehara, Nobutoshi Maehara
  • Patent number: 8992905
    Abstract: The present invention provides oral compositions which contain interferon ? (IFN?) as an active ingredient for preventing and/or treating periodontal disease. The number of causative microorganisms of periodontal disease can be suppressed by administering the compositions into the oral cavity. IFN? of the present invention can produce a sufficient effect even when administered at a very low dose. Furthermore, the compositions of the present invention can also be readily administered to animals such as dogs by formulating them into feed or such.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: March 31, 2015
    Assignees: Hokusan Co. Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Kuniaki Yoshioka, Ko Sato, Toru Gotanda, Akira Ito, Emiko Isogai, Kazuaki Takehara, Nobutoshi Maehara
  • Patent number: 8744742
    Abstract: A lateral object that exists on a side of the vehicle is detected. When an estimated later-arriving lateral position reaches a predetermined threshold value under the condition in which the lateral object is detected, a lane change of the vehicle in a direction to a side of the lateral object is suppressed. When detecting that the vehicle moves laterally in a direction opposite to a side of a side vehicle, an avoidance flag is set to Fa=1. Subsequently, when the vehicle starts a lateral movement in a direction to the side of the side vehicle, a return flag is set to Fr=1. When the return flag is set to Fr=1 in this way, a suppression flag is set to F=0 until a setting time elapses, then the suppression of the lateral movement is forbidden.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: June 3, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shuhei Nishimaki, Yasuhisa Hayakawa, Masahiro Kobayashi, Ko Sato
  • Patent number: 8655549
    Abstract: A vehicle driving control apparatus is provided with a lane detecting device, a future position estimating device and a vehicle control device. The lane detecting device detects a lane marker of a lane. The future position estimating device estimates a future transverse position of a host vehicle after a prescribed amount of time. The vehicle control device executes a vehicle control such that a yaw moment is imparted to the host vehicle toward a middle of the lane. The yaw moment is imparted upon determining that the future transverse position is positioned laterally farther toward an outside of the lane from the middle of the lane than a prescribed widthwise lane position that is determined in advance using the lane marker as a reference. The vehicle control device suppresses an impartation of the yaw moment device when a recognition degree of the lane marker is lower than a prescribed value.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: February 18, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Masahiro Kobayashi, Ko Sato, Shuhei Nishimaki
  • Patent number: 8432973
    Abstract: According to one embodiment, an interpolation frame generation apparatus generates an interpolation frame image to be inserted between continuous frame images. The interpolation frame generation apparatus includes a motion vector detection module and a generation module. The motion vector detection module is configured to execute block matching processing in each of a plurality of blocks included in the continuous frame images and specify one motion vector on an interpolation frame. The generation module is configured to, for an interpolation block in which the motion vector detection module specifies one motion vector, generate an interpolation frame image based on the motion vector, and for an interpolation block in which the motion vector detection module does not specify one motion vector, generate an interpolation frame image based on the frame image containing no motion vector component.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: April 30, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaya Yamasaki, Ko Sato, Keiko Hirayama, Yohei Hamakawa, Himio Yamauchi
  • Patent number: 8385422
    Abstract: According to one embodiment, an image processing apparatus includes a resolution increasing module and a moving-image improving module. The resolution increasing module that performs, on receipt of a first video signal with first resolution, super resolution conversion on the first video signal to obtain a second video signal with second resolution that is higher than the first resolution by estimating an original pixel value from the first video signal and increasing the pixels. The moving-image improving module that increases the frame rate of the second video signal after the super resolution conversion.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: February 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Ko Sato
  • Patent number: 8184703
    Abstract: According to one embodiment, an interpolated frame generator comprises first detector detects potential motion vector by block matching between input frame images, using first block of fixed size, second detector detects motion vector by block matching between the input frame images, using second block having fixed size larger than that of the first block, and generator generates interpolated frame by using the potential motion vector when first detector detects only one potential motion vector, and generates interpolated frame by using a potential motion vector closest to the motion vector detected by the second detector when first detector detects a plurality of motion vectors, wherein first detector includes extractor compares SAD of motion vector with SAD of motion vectors adjacent to the motion vector, and extracts potential motion vector having SAD smaller than any of the SAD of adjacent motion vectors, as a potential motion vector used in generator.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: May 22, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yohei Hamakawa, Masaya Yamasaki, Atsuo Shono, Hiroshi Yoshimura, Keiko Hirayama, Ko Sato, Kenichi Douniwa, Yoshihiko Ogawa
  • Patent number: 8155198
    Abstract: According to one embodiment, interpolated frame generating method of generating a new interpolated frame inserted between sequential frames, by using a plurality of input frame images, comprises first detecting of detecting at least one potential motion vector by block matching between the input frame images, using a first block of a fixed size, second detecting of detecting a motion vector by block matching between the input frame images, using a second block having a size variable within a range larger than that of the first block, and generating the interpolated frame by using the potential motion vector. The generating is generating the interpolated frame by using a potential motion vector closest to the motion vector detected by the second detecting among the potential motion vectors when a plurality of motion vectors are detected by the first detecting.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: April 10, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masaya Yamasaki, Yohei Hamakawa, Atsuo Shono, Hiroshi Yoshimura, Keiko Hirayama, Ko Sato, Kenichi Douniwa, Yoshihiko Ogawa
  • Patent number: 8145385
    Abstract: A vehicle driving control apparatus is provided with an obstacle detecting device, a future position estimating device, an obstacle avoidance control device, and a lane change intent detecting device. The obstacle detecting device detects an existence of an obstacle positioned laterally of a host vehicle. The future position estimating device estimates a future position of the host vehicle after a prescribed amount of time. The obstacle avoidance control device executes an obstacle avoidance control. The lane change intent detecting device detects an intent of a driver to effect a lane change and a direction of the intended lane change. Therefore, when it is detected that the driver intends to move to an adjacent lane located on the opposite side of the vehicle as the side containing the obstacle, a control suppressing portion of the obstacle avoidance control device suppresses the obstacle avoidance control.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: March 27, 2012
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhisa Hayakawa, Ko Sato, Masahiro Kobayashi
  • Publication number: 20110137487
    Abstract: [Object] An object of the present invention is to restrict an unnecessary control intervention at a scene where a vehicle avoids an obstacle etc. ahead of the vehicle by steering. [Means to Solve] A lateral object that exists on a side of the vehicle is detected (step S3), a later-arriving lateral position Xf at which the vehicle arrives after a lapse of a headway time Tt, with respect to a traffic lane, is estimated, and when the later-arriving lateral position Xf reaches a predetermined threshold value XL under the condition in which the lateral object is detected, a lane change of the vehicle in a direction to a side of the lateral object is suppressed. When detecting that the vehicle moves laterally in a direction opposite to a side of a side vehicle, an avoidance flag is set to Fa=1 (step S6). Subsequently, when the vehicle starts a lateral movement in a direction to the side of the side vehicle, a return flag is set to Fr=1 (step S7).
    Type: Application
    Filed: June 12, 2009
    Publication date: June 9, 2011
    Inventors: Shuhei Nishimaki, Yasuhisa Hayakawa, Masahiro Kobayashi, Ko Sato