Patents by Inventor Kazuaki Yamana

Kazuaki Yamana 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: 20230280634
    Abstract: An image pickup apparatus includes an image sensor, an optical filter, a holding member configured to hold the optical filter, a driving unit configured to move the holding member, a grip portion configured to be gripped by a user, and a light blocking member configured to control blocking or opening of an image pickup range. The driving unit moves the optical filter between (i) a first position at which the optical filter is inserted into the image pickup range and (ii) a second position at which the optical filter is retracted from the image pickup range in a direction from the first position toward the grip portion. The optical filter is located on a side closer to the image sensor than the light blocking member.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Inventors: Yuki TOTORI, Kazuaki YAMANA, Yoshikazu ASAI, Shoma MIZUTANI, Keisuke ADACHI, Sho NAGATSU, Nagisa INOUE
  • Publication number: 20230283907
    Abstract: An image pickup apparatus includes an image sensor, an optical filter movable between a first position at which the optical filter is inserted into an imaging range of the image sensor and a second position at which the optical filter is retracted from the imaging range, and a control unit configured to perform exposure control for the image sensor in a case where the optical filter is located at the first position and an in-focus state cannot be obtained by moving a focus lens.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Inventors: Sho NAGATSU, Kazuaki YAMANA, Yoshikazu ASAI, Yuki TOTORI, Keisuke ADACHI, Shoma MIZUTANI, Nagisa INOUE
  • Publication number: 20230280638
    Abstract: An image pickup apparatus includes an image sensor, an optical filter, a holding member configured to hold the optical filter, a driving unit configured to move the holding member, a grip portion to be gripped by a user, and a control board. The optical filter is movable by the driving unit between a first position inserted into an imaging range and a second position retracted from the imaging range in a direction from the first position toward the grip portion. The second position is located between the grip portion and the control board.
    Type: Application
    Filed: March 1, 2023
    Publication date: September 7, 2023
    Inventors: Nagisa INOUE, Kazuaki Yamana, Shoma Mizutani, Yuki Totori, Yoshikazu Asai, Keisuke Adachi, Sho Nagatsu
  • Patent number: 11604330
    Abstract: An imaging apparatus includes an imaging element that captures an image for detecting a phase difference in a predetermined direction on an image surface in order to detect a focal state of an image formed by an image formation lens, an imaging element driving unit configured to be able to drive the imaging element in a parallel movement direction and a rotation direction within a plane perpendicular to an optical axis of the image formation lens, and a focus detection unit configured to detect a focus by rotating the imaging element using the imaging element driving unit in accordance with a result of an image captured by the imaging element.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: March 14, 2023
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sho Nagatsu, Haruhisa Ueda, Hitoshi Mizoguchi, Kazuaki Yamana, Jun Kamiya, Keisuke Fukuyo
  • Patent number: 11575831
    Abstract: An apparatus includes a first correction unit including a first movable unit and a first mechanism configured to lock a position of the first movable unit. An interchangeable lens including a second correction unit is attachable to and detachable from the apparatus, and the second correction unit includes a second movable unit and a second mechanism configured to lock a position of the second movable unit. The apparatus further includes a control unit configured to, when the interchangeable lens is attached to the apparatus and one of the first and second movable units is fixed by the first or second mechanism, move the position of the other movable unit in a direction that cancels a shift of an optical axis caused by the fixation of the one of the first and second movable units.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: February 7, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuaki Yamana
  • Patent number: 11550207
    Abstract: An image capturing apparatus includes a first mount portion and a first cylindrical member that has a color different from a color of the first mount portion and is disposed in a circumferential direction of the first mount portion, an accessory includes an exterior portion, a second mount portion, and a second cylindrical member having a color different from a color of the second mount portion and similar to a color of the first cylindrical member and disposed in a circumferential direction of the second mount portion, and in a state where the accessory is attached to the image capturing apparatus, reference surfaces of the first mount portion and the second mount portion are in contact with each other, and the first cylindrical member and the second cylindrical member are externally exposed regardless of whether the accessory is attached to or detached from the image capturing apparatus.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: January 10, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Haruhisa Ueda, Kazuaki Yamana, Haruki Ota, Seishiro Takano, Masahisa Tamura, Kunihiko Sasaki, Katsuhiro Inoue, Toru Matsumoto, Shigehiro Torii, Toshinori Yamazaki
  • Publication number: 20220272276
    Abstract: An apparatus includes a first correction unit including a first movable unit and a first mechanism configured to lock a position of the first movable unit. An interchangeable lens including a second correction unit is attachable to and detachable from the apparatus, and the second correction unit includes a second movable unit and a second mechanism configured to lock a position of the second movable unit. The apparatus further includes a control unit configured to, when the interchangeable lens is attached to the apparatus and one of the first and second movable units is fixed by the first or second mechanism, move the position of the other movable unit in a direction that cancels a shift of an optical axis caused by the fixation of the one of the first and second movable units.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 25, 2022
    Inventor: Kazuaki Yamana
  • Patent number: D958224
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: July 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D958225
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: July 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D958226
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: July 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D958869
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: July 26, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D960957
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: August 16, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D960958
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: August 16, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu, Jun Kamiya
  • Patent number: D960959
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: August 16, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D960960
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: August 16, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu, Jun Kamiya
  • Patent number: D960961
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: August 16, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D963725
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: September 13, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D963731
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: September 13, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu, Jun Kamiya
  • Patent number: D963732
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: September 13, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D1016121
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: February 27, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu