Patents by Inventor Daisuke Matsubara

Daisuke Matsubara 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: 20240155229
    Abstract: An image capturing apparatus includes a plurality of pixels, a first amplifier capable of amplifying a signal of each pixel using a plurality of different gains, a second amplifier capable of amplifying the signal of each pixel using a plurality of different gains, with a method different from a method used by the first amplifier; and a control unit that performs control so as to execute one of first processing and second processing based on a shooting mode of the image capturing apparatus, a setting at the time of shooting, or a state of a subject, the first processing causing the first amplifier to amplify the signal of each pixel using a plurality of different gains, the second processing causing the second amplifier to amplify the signal of each pixel using a plurality of different gains.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 9, 2024
    Inventors: Hiroshi HIRANO, Kosuke MATSUBARA, Toshiharu UEDA, Shohei TOZAWA, Kazuto JIKEI, Fumihito KARAHASHI, Daisuke ITO
  • Publication number: 20240145256
    Abstract: A method for manufacturing a semiconductor device includes preparing a plurality of semiconductor elements, preparing a support member, attaching the plurality of semiconductor elements to the support member so that second surfaces of the plurality of semiconductor elements face the support member, encapsulating the plurality of semiconductor elements with an encapsulation material, removing the support member from an encapsulation material layer in which the plurality of semiconductor elements is encapsulated with the encapsulation material, bonding a first protective film to a second surface of the encapsulation material layer located on the second surface side of the plurality of semiconductor elements, and forming a re-distribution layer on a first surface of the encapsulation material layer located on the first surface side of the plurality of semiconductor elements after bonding the first protective film to the encapsulation material layer.
    Type: Application
    Filed: March 4, 2022
    Publication date: May 2, 2024
    Inventors: Hiroaki MATSUBARA, Daisuke IKEDA, Shogo SOBUE, Saeko OGAWA
  • Patent number: 11967912
    Abstract: An object of the present invention is to provide a motor control device capable of estimating a delay with high accuracy even in a case where there is a fluctuation in disturbance torque or delay time and of suppressing the influence of the delay. For this end, the present invention includes a motor MTR, an ECU 2 that controls the rotation of the motor MTR, and an ECU 1 that sends a torque command to the ECU 2 based on a command value. The ECU 1 includes a disturbance estimation block 100 and a delay estimation block 200. The disturbance estimation block 100 estimates disturbance torque (?d) using a torque command input to the ECU 2 and a feedback value of the motor MTR. The delay estimation block 200 estimates a delay using a torque command output from the ECU 1, the feedback value of the motor MTR, and the disturbance torque (?d).
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 23, 2024
    Assignee: Hitachi Astemo, Ltd
    Inventors: Hiroaki Sato, Toshiyuki Ajima, Kenichiro Matsubara, Daisuke Goto
  • Patent number: 11958459
    Abstract: An object of the present invention is to appropriately control a clearance amount by correcting an estimation error of a contact position caused by a delay time difference between output signals of sensors, and to establish both improvement of fuel efficiency due to prevention of drag of a brake pad during non-braking and reduction in response time during braking. A brake system includes a brake disc, a brake pad, a piston, a drive mechanism, a position sensor that detects a position of the piston, a thrust sensor that detects a thrust by which the brake pad presses the brake disc, and a brake control unit that adjusts a braking force by controlling the drive mechanism.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: April 16, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kyoshiro Itakura, Toshiyuki Ajima, Kenichiro Matsubara, Daisuke Goto
  • Patent number: 11932224
    Abstract: An object of the present invention is to provide a brake control device and a brake system capable of braking with a shortened braking response when shifting from non-braking to braking. A brake control device 10 includes a command value calculation unit 4 that calculates an operation command value required to make a pressing force by which a brake pad 11a is pressed against a brake disc 11b reach a target thrust value. The command value calculation unit 4 includes: a clearance command calculation unit 43 that calculates a command value required for contact between the brake pad 11a and the brake disc 11b; and a thrust command calculation unit 40 that calculates a command value required for reaching the target thrust from a state where the brake pad 11a and the brake disc 11b are in contact with each other.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 19, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Kyoshiro Itakura, Toshiyuki Ajima, Takahiro Ito, Kenichiro Matsubara, Daisuke Goto, Makoto Matsuura
  • Patent number: 11926296
    Abstract: An electric brake comprises a brake mechanism that transmits a thrust generated by driving an electric motor to a piston that moves brake pads pressed against a disc rotor; a thrust sensor that detects the thrust applied to the piston; a rotation angle sensor that detects a rotational position of the electric motor; and a rear electric brake ECU that controls the driving of the electric motor on the basis of a braking command. The rear electric brake ECU detects an abnormality in the brake mechanism from a detected value of the thrust sensor and a detected value of the rotation angle sensor in response to the braking command which are obtained when the electric motor is driven.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: March 12, 2024
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Wataru Yokoyama, Daisuke Goto, Kenichiro Matsubara
  • Publication number: 20230043386
    Abstract: An alert output apparatus is configured to hold: image information indicating one or more inspection objects included in a photographic object of an image for which determination is to be executed; alert target item information indicating an alert target item; and co-occurrence item information indicating alert co-occurrence items each determined in advance as an item to be included in the image at the same time as the alert target item, and to output alert when determining that at least one inspection object out of the one or more inspection objects matches to the alert target item and satisfies a given condition, and when determining that no inspection object out of the one or more inspection objects matches to the alert target item but at least one inspection object out of the one or more inspection objects matches to at least one of the alert co-occurrence items.
    Type: Application
    Filed: August 28, 2020
    Publication date: February 9, 2023
    Applicant: Hitachi, Ltd
    Inventors: Toru YASUMURA, Noboru OZEKI, Satoko IWASAWA, Daisuke MATSUBARA, Koh KAJII, Naoto AKIRA, Junichi KIMURA, Hideki OKITA
  • Patent number: 11308158
    Abstract: Provided is an information processing system, including a processor, a storage device and a display device. The storage device stores images captured by imaging devices. If an image of a moving object is selected as a search query, then the processor executes a similarity search on the images stored in the storage device, with the selected image as the search query. The display device displays images attained as results of the similarity search. If an image of a moving object is added as a search query, then the processor executes a similarity search with all selected images as search queries. The display device updates images to be displayed such that images attained as results of the similarity search performed with all the selected images as the search queries are displayed.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: April 19, 2022
    Assignee: HITACHI, LTD.
    Inventors: Daisuke Matsubara, Nobuo Nukaga
  • Publication number: 20210239875
    Abstract: An alert output timing control apparatus is configured to hold an analysis target image and time information indicating a period of time time to be spent until alert is output, and output the analysis target image to a display apparatus. When the analysis target image is input to a model and it is determined that an alert target object is included in a photographic object of the analysis target image, the alert output timing control apparatus obtains a period of time time from the time information and performs control so that alert is output at timing that arrives when the obtained period of time time elapses since given timing after the analysis target image is output.
    Type: Application
    Filed: November 17, 2020
    Publication date: August 5, 2021
    Inventors: Noboru OZEKI, Satoko HINOMIZU, Toru YASUMURA, Daisuke MATSUBARA, Koh KAJII, Naoto AKIRA, Junichi KIMURA, Hideki OKITA
  • Patent number: 10963736
    Abstract: Provided is technique of object recognition that can accurately recognize an object. An object recognition apparatus (i) generates property data that highlights a specific property based on target data, (ii) extracts a discrimination-use feature amount used for discrimination of each piece of the property data, (iii) calculates discrimination information used for discrimination of the property data, (iv) extracts a reliability feature amount used for estimation of reliability of the discrimination information calculated for each piece of the property data, (v) estimates the reliability of the discrimination information, (vi) generates synthesized information acquired by synthesizing the discrimination information calculated for each piece of the property data and the reliability calculated for each piece of the property data, and (vii) performs processing related to the object recognition.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: March 30, 2021
    Assignee: HITACHI, LTD.
    Inventors: Quan Kong, Yuki Watanabe, Naoto Akira, Daisuke Matsubara
  • Patent number: 10795928
    Abstract: An image search apparatus including: an accumulation unit that accumulates search target images; an area detector that learns search priority by analyzing first information extracted from a plurality of first areas included in a plurality of the search target images, analyzes second information extracted from a plurality of second areas included in a query image, and detects the second areas, the search priority of which is high, as conspicuous areas by using the second information; and an image search unit that searches for the search target images by using an image feature extracted from the conspicuous areas.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: October 6, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Daisuke Matsubara, Kenichi Yoneji
  • Publication number: 20200117948
    Abstract: Provided is technique of object recognition that can accurately recognize an object. An object recognition apparatus (i) generates property data that highlights a specific property based on target data, (ii) extracts a discrimination-use feature amount used for discrimination of each piece of the property data, (iii) calculates discrimination information used for discrimination of the property data, (iv) extractsa reliability feature amount used for estimation of reliability of the discrimination information calculated for each piece of the property data, (v) estimates the reliability of the discrimination information, (vi) generates synthesized information acquired by synthesizing the discrimination information calculated for each piece of the property data and the reliability calculated for each piece of the property data, and (vii) performs processing related to the object recognition.
    Type: Application
    Filed: December 21, 2017
    Publication date: April 16, 2020
    Applicant: HITACHI LTD
    Inventors: Quan Kong, Yuki Watanabe, Naoto Akira, Daisuke Matsubara
  • Patent number: 10607356
    Abstract: The present invention suitably determines how is congestion in an area. A congestion analysis device includes: a person classifying unit that is configured to determine, based on a moving image in which persons are photographed, the number of the persons; a motion trajectory determination unit that is configured to determine a motion trajectory of each of the persons; and a congestion information analysis unit that is configured to determine a state of each of the persons based on the motion trajectory thereof photographed in the moving image and also determine a congestion degree in accordance with the number of the persons and the state of each of the persons.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: March 31, 2020
    Assignee: Hitachi, Ltd.
    Inventors: Daisuke Matsubara, Miyako Iida
  • Publication number: 20200097501
    Abstract: Provided is an information processing system, including a processor, a storage device and a display device. The storage device stores images captured by imaging devices. If an image of a moving object is selected as a search query, then the processor executes a similarity search on the images stored in the storage device, with the selected image as the search query. The display device displays images attained as results of the similarity search. If an image of a moving object is added as a search query, then the processor executes a similarity search with all selected images as search queries. The display device updates images to be displayed such that images attained as results of the similarity search performed with all the selected images as the search queries are displayed.
    Type: Application
    Filed: May 7, 2019
    Publication date: March 26, 2020
    Inventors: Daisuke MATSUBARA, Nobuo NUKAGA
  • Patent number: 10602312
    Abstract: Provided is a content delivery system which includes an in-vehicle terminal and a content delivery server connected via wireless communication. The content delivery server includes a pre-sending unit which identifies a content that is likely to be used by the in-vehicle terminal in a dead spot where a communication status of the wireless communication is inferior, and sends the identified content to the in-vehicle terminal before a vehicle mounted with the in-vehicle terminal reaches the dead spot. The in-vehicle terminal includes an in-vehicle terminal storage unit which stores the content sent from the pre-sending unit.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: March 24, 2020
    Assignee: Clarion Co., Ltd.
    Inventors: Gen Tsuchida, Daisuke Matsubara, Yasushi Nagai, Kyousuke Tsurusu
  • Patent number: 10491863
    Abstract: A video surveillance system, including motion information from a plurality of surveillance cameras even when the installation conditions of the cameras are different, is equipped with an extraction unit which, upon receiving video images from the plurality of cameras, extracts motion feature quantities from a plurality of frames which constitute the video images, a storage unit for storing extraction results from the extraction unit, a conversion unit for converting the extracted motion feature quantities, and an analysis unit for analyzing the converted motion feature quantities, wherein the conversion unit retains virtual coordinate axes which are different from the coordinate axes of the plurality of cameras and converts the feature quantities by calculating virtual viewpoints on the virtual coordinate axes.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: November 26, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Yoneji, Daisuke Matsubara
  • Patent number: 10460187
    Abstract: A biometric authentication device including a housing, a light source unit that is installed on an upper surface of the housing and includes a light source, and an opening that is provided in the upper surface of the housing and located below the light source, and an imaging unit that is disposed inside the housing is disclosed. In the device, an optical axis of the light source intersects with a longitudinal direction of the housing, and the imaging unit images a user's biometric feature irradiated with an irradiation light from the light source through the opening.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 29, 2019
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Oda, Akira Omachi, Yoshihiro Iwama, Yusuke Daimon, Daisuke Matsubara, Hiroko Hasebe, Akio Nagasaka, Yusuke Matsuda, Naoto Miura
  • Publication number: 20190044913
    Abstract: To analyze communication information correctly and to extract task information, it is provided a network apparatus, which is configured to process packets, the network apparatus comprising: an arithmetic device; a storage device coupled to the arithmetic device; and an interface coupled to an apparatus, the apparatus being configured to transmit and receive packets. The arithmetic device being configured to execute processing in accordance with a predetermined procedure to implement: a reception processing module configured to receive a packet from the apparatus; and a vectorization module configured to convert a scalar value, which is a value of each byte of the received packet, into a vector value based on a predetermined vectorization algorithm.
    Type: Application
    Filed: March 13, 2018
    Publication date: February 7, 2019
    Inventors: Naoki TANIDA, Nodoka MIMURA, Yuji TSUSHIMA, Daisuke MATSUBARA, Katsufumi KON, Tetsuya OOHASHI, Hiroyuki MIKITA
  • Publication number: 20180286068
    Abstract: The present invention suitably determines how is congestion in an area. A congestion analysis device includes: a person classifying unit that is configured to determine, based on a moving image in which persons are photographed, the number of the persons; a motion trajectory determination unit that is configured to determine a motion trajectory of each of the persons; and a congestion information analysis unit that is configured to determine a state of each of the persons based on the motion trajectory thereof photographed in the moving image and also determine a congestion degree in accordance with the number of the persons and the state of each of the persons.
    Type: Application
    Filed: May 13, 2016
    Publication date: October 4, 2018
    Inventors: Daisuke MATSUBARA, Miyako IIDA
  • Patent number: 10074186
    Abstract: An image search system comprising an video taking unit that takes a video, a search unit that contains a processor and a storage unit and searches for an image contained in the video, an input unit that receives information that is input to the search unit, and a display unit that displays information that is output from the search unit. The storage unit holds information indicating the shapes of trajectories that represent the travel paths of a plurality of moving objects extracted from the video. When information indicating the shape of a trajectory is input from the input unit, the search unit searches the plurality of moving-object trajectories held in the storage unit for trajectories that are similar to the input trajectory shape, and if such a trajectory is found, the search unit displays, on the display unit, images of the moving objects that have traveled along the found trajectories.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: September 11, 2018
    Assignee: Hitachi, Ltd.
    Inventors: Nobuo Nukaga, Daisuke Matsubara, Yuki Watanabe, Kenichi Yoneji, Tomoaki Yoshinaga, Atsushi Hiroike