Patents by Inventor Akihiro Uchida

Akihiro Uchida 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: 20220235857
    Abstract: In a power transmission device in which a hub portion of a ring gear is fixed by a weld portion to a flange portion on an outer periphery of a transmission member, a positioning outer peripheral part of an outer periphery of the flange portion has a radial direction positioning face that positions the hub portion in a radial direction with respect to the flange portion, and an axial direction positioning face that positions in an axial direction, a first annular recess part is provided in the positioning outer peripheral part, the first annular recess part alleviating stress caused by a pushing load via which the positioning projecting part pushes the radial direction positioning face due to the hub portion receiving a tensile force inward in the radial direction accompanying thermal shrinkage of the weld portion between a first outer peripheral part and the hub portion.
    Type: Application
    Filed: June 26, 2020
    Publication date: July 28, 2022
    Inventors: Akihiro UCHIDA, Akuto SEKIGUCHI, Tetsuya OKABE
  • Patent number: 11394868
    Abstract: An imaging device acquires a focal length of an imaging lens; and in performing of zoom tracking control to change a state of the focus lens of the imaging lens according to the acquired focal length, in a case where a change of the acquired focal length is detected, varies a criterion in the zoom tracking control depending on whether autofocus is being executed or not.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: July 19, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Uchida, Koichi Tanaka, Kenkichi Hayashi, Shinichiro Fujiki, Seiichi Izawa
  • Patent number: 11372196
    Abstract: An imaging device and a focusing control method are provided. The imaging device includes: an imaging element, having pixels including phase-difference detecting pixels and imaging a subject through an imaging optical system including a focus lens; and a focusing controller, selectively performing focusing control using a phase difference AF method or focusing control using a contrast AF method in a mode in which focusing control for focusing on a main subject by driving the focus lens is continuously performed multiple times. The focusing controller performs the focusing control using the contrast AF method in a case where a state in which a degree of reliability of the focusing control using the phase difference AF method is equal to or less than a threshold value persists N times (N=2 or more), while the focusing control using the phase difference AF method is continuously performed.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: June 28, 2022
    Assignee: FUJIFILM Corporation
    Inventor: Akihiro Uchida
  • Patent number: 11375118
    Abstract: An imaging device includes: a suppression unit that moves an anti-vibration element to a position, which is determined according to a detection result of a detection unit detecting vibration applied to the device, to suppress an influence of the vibration on a subject image; and a control unit that performs control on a display unit to display the subject image as a video image and performs control on the suppression unit to center the anti-vibration element while a visibility-obstruction phenomenon, which is predetermined as a phenomenon where the visual recognition of a shift in an angle of view caused by the centering of the anti-vibration element can be obstructed, occurs in a state where an operation for displaying the video image by the display unit is being performed and an operation for suppressing the influence by the suppression unit is being performed.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: June 28, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Uchida, Kenkichi Hayashi, Hideo Kobayashi, Seiichi Izawa, Koichi Tanaka
  • Patent number: 11336815
    Abstract: A focusing control device that moves a position of a focus lens included in an imaging lens along an optical axis direction. The device comprises a processor configured to execute a process.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: May 17, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Koichi Tanaka, Kenkichi Hayashi, Akihiro Uchida, Seiichi Izawa, Shinichiro Fujiki
  • Patent number: 11294145
    Abstract: An imaging device derives a change amount of image magnification corresponding to each of a plurality of F-numbers in an autofocus area on the basis of a reference value of the change amount of the image magnification in accordance with a change in position of a focus lens for each of the plurality of F-numbers, in a case where autofocus is executed; determines, as a limit F-number, an F-number corresponding to any change amount equal to or less than a threshold value of the allowed change amount of the image magnification among the derived change amounts; and sets an F-number as the limit F-number in a case where the F-number obtained from a subject luminance in a case where autofocus is executed exceeds the determined limit F-number.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: April 5, 2022
    Assignee: FUJIFILM Corporation
    Inventors: Akihiro Uchida, Koichi Tanaka, Kenkichi Hayashi, Shinichiro Fujiki, Seiichi Izawa
  • Patent number: 11178370
    Abstract: An image correction device includes a reception unit, a detection unit and a correction unit. The reception unit receives a first-image and a second-image, which are obtained by a first-imaging device and a second-imaging device, and an imaging condition that is at least one piece of information on an imaging date and time or information on an imaging location corresponding to each of the first-image and the second-image. The detection unit detects the same scene between images indicated by the first-image and the second-image based on the imaging conditions corresponding to each of the first-image and the second-image. The correction unit extracts, from each of the images indicated by the first-image and the second-image corresponding to the same scene, a common subject which is common between the images, and performs, on the corresponding image, color correction of making colors of the extracted common subject similar to each other.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: November 16, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Shinya Fujiwara, Akihiro Uchida, Kosuke Irie, Koichi Tanaka, Shinichiro Fujiki
  • Publication number: 20210352199
    Abstract: The lens interchangeable digital camera includes a sensor movement type shake correction mechanism that performs a sensor movement operation of moving an image sensor in a direction to cancel a shake. A characteristic data acquisition unit acquires optical characteristic data corresponding to optical characteristics of an imaging optical system of a lens unit mounted on a body mount. A determination unit determines whether or not adaptive optical characteristic data that can be handled by an image correction unit that performs image correction based on the optical characteristic data can be acquired. An operation deciding unit prohibits a shift operation which is at least a part of a sensor movement operation in an uncorrectable state where the image correction based on the adaptive optical characteristic data is not possible since the adaptive optical characteristic data cannot be acquired.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Koichi TANAKA, Akihiro UCHIDA, Kenkichi HAYASHI, Seiichi IZAWA, Hideo KOBAYASHI
  • Patent number: 11115593
    Abstract: The lens interchangeable digital camera includes a sensor movement type shake correction mechanism that performs a sensor movement operation of moving an image sensor in a direction to cancel a shake. A characteristic data acquisition unit acquires optical characteristic data corresponding to optical characteristics of an imaging optical system of a lens unit mounted on a body mount. A determination unit determines whether or not adaptive optical characteristic data that can be handled by an image correction unit that performs image correction based on the optical characteristic data can be acquired. An operation deciding unit prohibits a shift operation which is at least a part of a sensor movement operation in an uncorrectable state where the image correction based on the adaptive optical characteristic data is not possible since the adaptive optical characteristic data cannot be acquired.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: September 7, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Koichi Tanaka, Akihiro Uchida, Kenkichi Hayashi, Seiichi Izawa, Hideo Kobayashi
  • Patent number: 10960380
    Abstract: An adsorbent, which can be produced by a method in which a particle size, a pore size, a specific surface area or the like can be easily controlled, and is suitable for isolation of biomolecules. The adsorbent contains aggregates of calcium phosphate-based particles, and has an average pore size of 15 to 36 nanometers and a specific surface area of 40 to 90 m2/mL when measurement is carried out by mercury porosimetry.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: March 30, 2021
    Assignees: JNC CORPORATION, SofSera Corporation
    Inventors: Yoshihiro Matsumoto, Akihiro Uchida, Yasuto Umeda
  • Publication number: 20210076019
    Abstract: An image correction device includes a reception unit, a detection unit and a correction unit. The reception unit receives a first-image and a second-image, which are obtained by a first-imaging device and a second-imaging device, and an imaging condition that is at least one piece of information on an imaging date and time or information on an imaging location corresponding to each of the first-image and the second-image. The detection unit detects the same scene between images indicated by the first-image and the second-image based on the imaging conditions corresponding to each of the first-image and the second-image. The correction unit extracts, from each of the images indicated by the first-image and the second-image corresponding to the same scene, a common subject which is common between the images, and performs, on the corresponding image, color correction of making colors of the extracted common subject similar to each other.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 11, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Shinya FUJIWARA, Akihiro UCHIDA, Kosuke IRIE, Koichi TANAKA, Shinichiro FUJIKI
  • Patent number: 10904441
    Abstract: An imaging device includes: a lens-side suppression unit that moves an anti-vibration lens, which is provided in an interchangeable imaging lens mounted on an imaging device body including an imaging element, to a position, which is determined according to a detection result of a detection unit detecting vibration applied to a device, to suppress an influence of the vibration on a subject image; an imaging element-side suppression unit that moves the imaging element to suppress a shift in an angle of view caused by the movement of the anti-vibration lens; and a control unit that performs control on the lens-side suppression unit to limit a movable range of the anti-vibration lens, which is moved by the lens-side suppression unit, on the basis of the amount of the maximum shift in the angle of view caused by the movement of the imaging element performed by the imaging element-side suppression unit.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: January 26, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Koichi Tanaka, Seiichi Izawa, Akihiro Uchida, Hideo Kobayashi, Kenkichi Hayashi
  • Publication number: 20210011251
    Abstract: An imaging device and a focusing control method are provided. The imaging device includes: an imaging element, having pixels including phase-difference detecting pixels and imaging a subject through an imaging optical system including a focus lens; and a focusing controller, selectively performing focusing control using a phase difference AF method or focusing control using a contrast AF method in a mode in which focusing control for focusing on a main subject by driving the focus lens is continuously performed multiple times. The focusing controller performs the focusing control using the contrast AF method in a case where a state in which a degree of reliability of the focusing control using the phase difference AF method is equal to or less than a threshold value persists N times (N=2 or more), while the focusing control using the phase difference AF method is continuously performed.
    Type: Application
    Filed: September 29, 2020
    Publication date: January 14, 2021
    Applicant: FUJIFILM Corporation
    Inventor: Akihiro UCHIDA
  • Publication number: 20210006729
    Abstract: A focusing control device that moves a position of a focus lens included in an imaging lens along an optical axis direction. The device comprises a processor configured to execute a process.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 7, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Koichi TANAKA, Kenkichi HAYASHI, Akihiro UCHIDA, Seiichi IZAWA, Shinichiro FUJIKI
  • Patent number: 10883587
    Abstract: A differential device includes a ring gear receiving a rotational driving force from a drive gear, a differential case rotating integrally with the ring gear around a predetermined axis, and a differential mechanism installed within a barrel part of the differential case. The ring gear includes a gear portion meshing with the drive gear, and a rim portion that is formed integrally with an inner periphery of the gear portion and is fitted, in a non-welded state, onto a maximum diameter outer peripheral portion of the barrel part or a predetermined outer peripheral portion having a smaller diameter than the maximum diameter outer peripheral portion. The rim portion has a to-be-fixed portion welded to the barrel part at a position spaced in an axial direction from a fitting part via which the rim portion and the barrel part are fitted, the position being further radially inward than the fitting part.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: January 5, 2021
    Assignee: Musashi Seimitsu Industry Co., Ltd.
    Inventors: Akihiro Uchida, Yoichi Yanase
  • Publication number: 20200409026
    Abstract: An imaging device stores a focal length and a position of a focus lens in a storage unit in a case in which a focal state is determined to be a focus state in which a subject is in focus and at least one of the imaging device or the subject is determined to be stationary; generates tracking data for changing the position of the focus lens according to a change in focal length, using a plurality of stored focal lengths and a plurality of stored positions of the focus lens; and performs a zoom tracking control using the generated tracking data.
    Type: Application
    Filed: September 15, 2020
    Publication date: December 31, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Shinichiro FUJIKI, Akihiro UCHIDA, Koichi TANAKA, Kenkichi HAYASHI, Seiichi IZAWA
  • Patent number: 10859791
    Abstract: An imaging device and a focusing control method are provided. The imaging device includes: an imaging element, having pixels including phase-difference detecting pixels and imaging a subject through an imaging optical system including a focus lens; and a focusing controller, selectively performing focusing control using a phase difference AF method or focusing control using a contrast AF method in a mode in which focusing control for focusing on a main subject by driving the focus lens is continuously performed multiple times. The focusing controller performs the focusing control using the contrast AF method in a case where a state in which a degree of reliability of the focusing control using the phase difference AF method is equal to or less than a threshold value persists N times (N=2 or more), while the focusing control using the phase difference AF method is continuously performed.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: December 8, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Akihiro Uchida
  • Publication number: 20200348490
    Abstract: An imaging device derives a change amount of image magnification corresponding to each of a plurality of F-numbers in an autofocus area on the basis of a reference value of the change amount of the image magnification in accordance with a change in position of a focus lens for each of the plurality of F-numbers, in a case where autofocus is executed; determines, as a limit F-number, an F-number corresponding to any change amount equal to or less than a threshold value of the allowed change amount of the image magnification among the derived change amounts; and sets an F-number as the limit F-number in a case where the F-number obtained from a subject luminance in a case where autofocus is executed exceeds the determined limit F-number.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Applicant: FUJIFILM Corporation
    Inventors: Akihiro UCHIDA, Koichi TANAKA, Kenkichi HAYASHI, Shinichiro FUJIKI, Seiichi IZAWA
  • Publication number: 20200348486
    Abstract: An imaging device and a focusing control method are provided. The imaging device includes: an imaging element, having pixels including phase-difference detecting pixels and imaging a subject through an imaging optical system including a focus lens; and a focusing controller, selectively performing focusing control using a phase difference AF method or focusing control using a contrast AF method in a mode in which focusing control for focusing on a main subject by driving the focus lens is continuously performed multiple times. The focusing controller performs the focusing control using the contrast AF method in a case where a state in which a degree of reliability of the focusing control using the phase difference AF method is equal to or less than a threshold value persists N times (N=2 or more), while the focusing control using the phase difference AF method is continuously performed.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Applicant: FUJIFILM Corporation
    Inventor: Akihiro UCHIDA
  • Patent number: 10802380
    Abstract: An imaging device includes: an imaging device body including an imaging element that receives reflected light representing a subject as a subject image, and a body-side suppression unit that suppresses an influence of vibration, which is applied to a device, on the subject image on the basis of a detection result of a detection unit detecting the vibration; and a control unit performing control on the body-side suppression unit to suppress the influence with a limit that is a degree for limiting the suppression of the influence performed by the body-side suppression unit and is determined according to information about an interchangeable imaging lens mounted on the imaging device body.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: October 13, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Hideo Kobayashi, Kenkichi Hayashi, Koichi Tanaka, Akihiro Uchida, Seiichi Izawa