Patents by Inventor Nobuhiro Shibata

Nobuhiro Shibata 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: 20240115432
    Abstract: The present invention provides: a nonwoven fabric which gives a sufficiently soft touch when touched by a human hand, while being suppressed in slipperiness between nonwoven fabrics during the production process of a product such as a sanitary material; and a method for producing a nonwoven fabric. One embodiment of the present invention provides a nonwoven fabric which is formed of fibers containing a thermoplastic resin, wherein: the average single fiber fineness of the fibers is 0.7 dtex to 4.0 dtex; the fibers contain 0.01% by mass to 1.5% by mass of a fatty acid amide relative to the total mass of the fibers; and the coverage of the surfaces of the fibers by the fatty acid amide is from 20% to 90%.
    Type: Application
    Filed: June 30, 2022
    Publication date: April 11, 2024
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Daiki Hirata, Hidesato Shibata, Nobuhiro Inokuma, Eiji Shiota
  • Publication number: 20240073527
    Abstract: An image stabilization control apparatus performs image stabilization by controlling a first correction unit that drives a correction lens included in an imaging optical system and a second correction unit that drives an image sensor, and by selecting one of a plurality of control methods including first and second control methods based on a focal length of the imaging optical system, and obtaining a correction amount of one of the first and second correction unit based on a shake amount from detection unit and on the control method selected by the selection unit. The first control method is to perform an over-correction using the first correction unit and an inverse-correction using the second correction unit.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 29, 2024
    Inventor: Nobuhiro SHIBATA
  • Publication number: 20240073526
    Abstract: An image stabilization control apparatus performs image stabilization by controlling first correction unit that drives a correction lens in an imaging optical system and second correction unit that drives an image sensor by selecting one of control methods including first and second control methods in accordance with whether the imaging optical system is compatible with the first control method, and obtaining correction amounts of the first and second correction unit based on a shake amount and on the selected control method. The first control method is to perform an over-correction using the first correction unit and an inverse-correction using the second correction unit. The second control method is a method to correct the shake amount using a preset ratio for the first and second correction unit.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 29, 2024
    Inventor: Nobuhiro SHIBATA
  • Patent number: 11863870
    Abstract: An image stabilization apparatus that reduces image blurring by moving a correction mechanism in accordance with a motion of an image capture apparatus is disclosed. The apparatus controls a movement of the correction mechanism in accordance with a target position of the correction mechanism, the target position being intended to reduce the image blurring. The apparatus detects a vibration of a preset frequency included in the motion, the preset frequency being higher than a first frequency of a vibration caused by a camera shake. The apparatus, in a case where the vibration of the preset frequency has been detected, further reduces a control gain used for controlling the movement of the correction mechanism compared to a case where the vibration of the preset frequency has not been detected.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: January 2, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Shibata
  • Publication number: 20230336501
    Abstract: An object is to provide a communication system, a communication method, a transmission-side switching device, a reception-side switching device, and a program that can carry out network switching of a plurality of L2NWs with a short communication disconnection time without limiting topology. A transmission-side accommodation SW duplicates a frame received from a transmission-side user device and transfers the frame to a plurality of L2NWs to which the transmission-side accommodation SW is connected. When receiving a frame from any one of the plurality of L2NWs to which a reception-side accommodation SW is connected, the reception-side accommodation SW transfers, to a reception-side user device, only a frame from one L2NW allowed to transfer a frame to an access accommodation port and discards frames from the other L2NWs. At a switching time of the L2NWs, the reception-side accommodation SW changes the L2NW allowed to transmit a frame to the access accommodation port.
    Type: Application
    Filed: February 28, 2020
    Publication date: October 19, 2023
    Inventors: Nobuhiro SHIBATA, Hideo KAWATA, Hideaki KIMURA, Shinichi YOSHIHARA
  • Publication number: 20230300103
    Abstract: An object of the present disclosure is to reduce band compression even in a case where a frame addressed to an original (overwritten) MAC is received again after a MAC address is overwritten. A communication device according to the present disclosure measures a traffic amount in any predetermined determination data unit, holds MAC entry information including the measured traffic amount and a MAC address in a MAC learning data holding unit, at the time when the number of pieces of MAC entry information held by the MAC learning data holding unit reaches an upper limit, searches for minimum MAC entry information with a minimum traffic amount from among traffic data amounts in determination data unit held by the MAC learning data holding unit, and overwrites the minimum MAC entry information obtained by search with unlearned MAC entry information that is not held by the MAC learning data holding unit.
    Type: Application
    Filed: July 3, 2020
    Publication date: September 21, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Nobuhiro SHIBATA, Hideo KAWATA, Shinichi YOSHIHARA
  • Publication number: 20230231807
    Abstract: The disclosure has an object to allow local expansion without causing any loop. The disclosure is a system to which two nodes respectively belonging to different ring networks are connected, wherein the two nodes are connected to each other using a predetermined customized port, upon receipt of a predetermined unicast frame, one of the two nodes transmits the frame to another of the two nodes using the customized port, upon receipt of the predetermined unicast frame from the customized port, the other of the two nodes forwards the unicast frame, and upon receipt of a frame different from the predetermined unicast frame from the customized port, the other of the two nodes discards the frame.
    Type: Application
    Filed: June 5, 2020
    Publication date: July 20, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Hideo KAWATA, Nobuhiro SHIBATA, Keisuke YAMAGATA, Shinichi YOSHIHARA
  • Publication number: 20230090592
    Abstract: An image stabilization apparatus that reduces image blurring by moving a correction mechanism in accordance with a motion of an image capture apparatus is disclosed. The apparatus controls a movement of the correction mechanism in accordance with a target position of the correction mechanism, the target position being intended to reduce the image blurring. The apparatus detects a vibration of a preset frequency included in the motion, the preset frequency being higher than a first frequency of a vibration caused by a camera shake. The apparatus, in a case where the vibration of the preset frequency has been detected, further reduces a control gain used for controlling the movement of the correction mechanism compared to a case where the vibration of the preset frequency has not been detected.
    Type: Application
    Filed: September 7, 2022
    Publication date: March 23, 2023
    Inventor: Nobuhiro Shibata
  • Patent number: 11575833
    Abstract: An apparatus includes a calculation unit configured to calculate a target correction amount based on a shake, a stabilization control unit configured to provide control on driving of a sensor in a direction intersecting an optical axis of a pickup optical system, based on the target correction amount, an autofocusing control unit configured to provide control on focusing based on an image signal output from the sensor, and a setting unit configured to set a limit value for the target correction amount based on a characteristic of the pickup optical system and focusing accuracy of the autofocusing unit. The setting unit is configured to change the limit value depending on the pickup condition, and is capable of setting a first limit value based on the characteristic and a second limit value based on the focusing accuracy.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: February 7, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Shibata
  • Patent number: 11190687
    Abstract: There is provided an image blur correction control apparatus for correcting image blur of an image capturing apparatus through sharing with a second image blur correction control apparatus in accordance with a predetermined sharing rule. In a case where a first characteristic of the first detector is better than a second characteristic of a second detector included in the second image blur correction unit, a first deciding unit decides a first cutoff frequency based on shake information detected by the first detector, a transmitting unit transmits the first cutoff frequency to the second image blur correction control apparatus as a cutoff frequency to be used by the second image blur correction control apparatus, and a filtering unit performs filter processing on the shake information detected by the first detector. The first cutoff frequency is applied in the filter processing.
    Type: Grant
    Filed: June 23, 2020
    Date of Patent: November 30, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Shibata
  • Publication number: 20210337122
    Abstract: An apparatus includes a calculation unit configured to calculate a target correction amount based on a shake, a stabilization control unit configured to provide control on driving of a sensor in a direction intersecting an optical axis of a pickup optical system, based on the target correction amount, an autofocusing control unit configured to provide control on focusing based on an image signal output from the sensor, and a setting unit configured to set a limit value for the target correction amount based on a characteristic of the pickup optical system and focusing accuracy of the autofocusing unit. The setting unit is configured to change the limit value depending on the pickup condition, and is capable of setting a first limit value based on the characteristic and a second limit value based on the focusing accuracy.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 28, 2021
    Inventor: Nobuhiro Shibata
  • Publication number: 20200412955
    Abstract: There is provided an image blur correction control apparatus for correcting image blur of an image capturing apparatus through sharing with a second image blur correction control apparatus in accordance with a predetermined sharing rule. In a case where a first characteristic of the first detector is better than a second characteristic of a second detector included in the second image blur correction unit, a first deciding unit decides a first cutoff frequency based on shake information detected by the first detector, a transmitting unit transmits the first cutoff frequency to the second image blur correction control apparatus as a cutoff frequency to be used by the second image blur correction control apparatus, and a filtering unit performs filter processing on the shake information detected by the first detector. The first cutoff frequency is applied in the filter processing.
    Type: Application
    Filed: June 23, 2020
    Publication date: December 31, 2020
    Inventor: Nobuhiro Shibata
  • Patent number: 10863078
    Abstract: A focus detection apparatus comprising: a setting unit that selects and sets one of a plurality of predetermined focus detection areas which include a first focus detection area and a second focus detection area located in a periphery of a screen in an image shooting mode for shooting the moon; a first calculation unit that calculates an in-focus position in the first focus detection area based on a phase difference between a pair of focus detection signals having a parallax output from an image sensor; and a second calculation unit that calculates an in-focus position in the second focus detection area based on contrast of image signals output from the image sensor.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: December 8, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Nobuhiro Shibata
  • Patent number: 10747089
    Abstract: An imaging apparatus includes a storage unit configured to store beforehand a focus position serving as a reference for a predetermined subject, and a unit configured to drive a focus lens at a position away by a predetermined depth from the focus position serving as a reference that is stored, and calculate a defocus amount.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: August 18, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Nobuhiro Shibata, Hiroaki Kurisu, Teruhiko Ueyama
  • Patent number: 10498965
    Abstract: An image stabilization apparatus includes: a driving control unit that drives an image stabilization unit to optically correct image blur of an object image caused by a shake of an apparatus, the image stabilization unit moving the object image on a screen of an image sensor; and a focus control unit that performs control to drive a focusing lens in coordination with an operation of the image stabilization unit, the focusing lens being used to perform focus adjustment in an imaging optical system.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 3, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yosuke Fukai, Shuichi Terada, Toshihiro Ogawa, Nobuhiro Shibata
  • Publication number: 20190158760
    Abstract: A focus detection apparatus comprising: a setting unit that selects and sets one of a plurality of predetermined focus detection areas which include a first focus detection area and a second focus detection area located in a periphery of a screen in an image shooting mode for shooting the moon; a first calculation unit that calculates an in-focus position in the first focus detection area based on a phase difference between a pair of focus detection signals having a parallax output from an image sensor; and a second calculation unit that calculates an in-focus position in the second focus detection area based on contrast of image signals output from the image sensor.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 23, 2019
    Inventor: Nobuhiro Shibata
  • Patent number: 10277822
    Abstract: An image forming apparatus which is able to shoot high-quality images while improving image stabilization performance. An optical device which corrects for image blurring is moved in a direction different from an optical axis. Focusing is controlled by calculating a shape of a contrast using AF evaluation values at respective positions of a focus lens, which moves in the direction of the optical axis, at predetermined intervals and using a position of the focus lens at which the contrast is at its peak as a position at which a bundle of rays comes to a focus on a light-incident plane of the image pickup device. During the focusing control, positions of the focus lens obtained when the AF evaluation values were obtained or the obtained AF evaluation values are corrected according to detected positions of the optical device in a direction perpendicular to the optical axis.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: April 30, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventor: Nobuhiro Shibata
  • Publication number: 20190094656
    Abstract: An imaging apparatus includes a storage unit configured to store beforehand a focus position serving as a reference for a predetermined subject, and a unit configured to drive a focus lens at a position away by a predetermined depth from the focus position serving as a reference that is stored, and calculate a defocus amount.
    Type: Application
    Filed: September 19, 2018
    Publication date: March 28, 2019
    Inventors: Nobuhiro Shibata, Hiroaki Kurisu, Teruhiko Ueyama
  • Publication number: 20170295321
    Abstract: An image stabilization apparatus includes: a driving control unit that drives an image stabilization unit to optically correct image blur of an object image caused by a shake of an apparatus, the image stabilization unit moving the object image on a screen of an image sensor; and a focus control unit that performs control to drive a focusing lens in coordination with an operation of the image stabilization unit, the focusing lens being used to perform focus adjustment in an imaging optical system.
    Type: Application
    Filed: March 28, 2017
    Publication date: October 12, 2017
    Inventors: Yosuke Fukai, Shuichi Terada, Toshihiro Ogawa, Nobuhiro Shibata
  • Publication number: 20170295322
    Abstract: An image forming apparatus which is able to shoot high-quality images while improving image stabilization performance. An optical device which corrects for image blurring is moved in a direction different from an optical axis. Focusing is controlled by calculating a shape of a contrast using AF evaluation values at respective positions of a focus lens, which moves in the direction of the optical axis, at predetermined intervals and using a position of the focus lens at which the contrast is at its peak as a position at which a bundle of rays comes to a focus on a light-incident plane of the image pickup device. During the focusing control, positions of the focus lens obtained when the AF evaluation values were obtained or the obtained AF evaluation values are corrected according to detected positions of the optical device in a direction perpendicular to the optical axis.
    Type: Application
    Filed: April 6, 2017
    Publication date: October 12, 2017
    Inventor: Nobuhiro Shibata