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).

  • Patent number: 11190691
    Abstract: An image pickup apparatus includes an image sensor configured to capture an object image, an image stabilizing unit that includes a coil, a magnet that faces the coil, and a yoke that contacts the magnet, and moves the image sensor for an image stabilization by electrifying the coil, and a magnetic flux shielding member made of a magnetic material and disposed in an area between the image stabilizing unit and an exterior surface of the image pickup apparatus, through which a magnetic flux generated from the magnet moves toward outside of the image pickup apparatus.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: November 30, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuaki Yamana
  • Publication number: 20210255421
    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: Application
    Filed: February 16, 2021
    Publication date: August 19, 2021
    Inventors: Sho Nagatsu, Haruhisa Ueda, Hitoshi Mizoguchi, Kazuaki Yamana, Jun Kamiya, Keisuke Fukuyo
  • Publication number: 20210132472
    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: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Haruhisa Ueda, Kazuaki Yamana, Haruki Ota, Seishiro Takano, Masahisa Tamura, Kunihiko Sasaki, Katsuhiro Inoue, Toru Matsumoto, Shigehiro Torii, Toshinori Yamazaki
  • Publication number: 20210092273
    Abstract: An image pickup apparatus includes an image sensor configured to capture an object image, an image stabilizing unit that includes a coil, a magnet that faces the coil, and a yoke that contacts the magnet, and moves the image sensor for an image stabilization by electrifying the coil, and a magnetic flux shielding member made of a magnetic material and disposed in an area between the image stabilizing unit and an exterior surface of the image pickup apparatus, through which a magnetic flux generated from the magnet moves toward outside of the image pickup apparatus.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 25, 2021
    Inventor: Kazuaki Yamana
  • Patent number: 10948807
    Abstract: Included are multiple camera claws of a second mount that are insertable between multiple accessory claws, and that are capable of coupling by bayonet coupling, multiple contact pins disposed following the circumferential direction of a mount, and a biasing unit to bias the multiple accessory claws in a direction parallel to a center axis of the second mount. The second mount can be relatively rotated to a first state where the accessory claws are inserted between the camera claws, and a second state where the camera claws engage with the accessory claws in the direction. The biasing unit biases a first accessory claw in the direction in the second state, and a first contact pin included in multiple camera-side contact pins situated at the nearest side of the mounting direction of an accessory overlaps the biasing unit in the radial direction.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: March 16, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuaki Yamana
  • Patent number: 10915008
    Abstract: Included are multiple camera claws of a second mount that are insertable between multiple accessory claws, and that are capable of coupling by bayonet coupling, multiple contact pins disposed following the circumferential direction of a mount, and a biasing unit to bias the multiple accessory claws in a direction parallel to a center axis of the second mount. The second mount can be relatively rotated to a first state where the accessory claws are inserted between the camera claws, and a second state where the camera claws engage with the accessory claws in the direction. The biasing unit biases a first accessory claw in the direction in the second state, and a first contact pin included in multiple camera-side contact pins situated at the nearest side of the mounting direction of an accessory overlaps the biasing unit in the radial direction.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: February 9, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuaki Yamana
  • Publication number: 20200192194
    Abstract: Included are multiple camera claws of a second mount that are insertable between multiple accessory claws, and that are capable of coupling by bayonet coupling, multiple contact pins disposed following the circumferential direction of a mount, and a biasing unit to bias the multiple accessory claws in a direction parallel to a center axis of the second mount. The second mount can be relatively rotated to a first state where the accessory claws are inserted between the camera claws, and a second state where the camera claws engage with the accessory claws in the direction. The biasing unit biases a first accessory claw in the direction in the second state, and a first contact pin included in multiple camera-side contact pins situated at the nearest side of the mounting direction of an accessory overlaps the biasing unit in the radial direction.
    Type: Application
    Filed: February 25, 2020
    Publication date: June 18, 2020
    Inventor: Kazuaki Yamana
  • Patent number: 10613419
    Abstract: Included are multiple camera claws of a second mount that are insertable between multiple accessory claws, and that are capable of coupling by bayonet coupling, multiple contact pins disposed following the circumferential direction of a mount, and a biasing unit to bias the multiple accessory claws in a direction parallel to a center axis of the second mount. The second mount can be relatively rotated to a first state where the accessory claws are inserted between the camera claws, and a second state where the camera claws engage with the accessory claws in the direction. The biasing unit biases a first accessory claw in the direction in the second state, and a first contact pin included in multiple camera-side contact pins situated at the nearest side of the mounting direction of an accessory overlaps the biasing unit in the radial direction.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: April 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kazuaki Yamana
  • Patent number: 10393995
    Abstract: A mirror driving device has a simple configuration and is capable of accelerating and decelerating a mirror during a mirror down operation. The mirror driving device includes a mirror, a mirror box attached to be movable between a first position where the mirror is located in an optical path and a second position where the mirror is retracted from the optical path, a mirror driving member rotatably attached to the mirror box and configured to drive the mirror, and a link member rotatably attached to the mirror driving member. A cam portion is formed in the mirror box. The link member includes a follower portion configured to follow with the cam portion.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: August 27, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kazuaki Yamana
  • Patent number: D899486
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 20, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D900193
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 27, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D900194
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 27, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D900195
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 27, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D900196
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 27, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D900197
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: October 27, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Katsuhiro Inoue, Kunihiko Sasaki, Shigehiro Torii, Toshinori Yamazaki, Toru Matsumoto, Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D938508
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 14, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu
  • Patent number: D939011
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 21, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Jun Kamiya
  • Patent number: D939612
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: December 28, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Masayasu Shigematsu, Jun Kamiya
  • Patent number: D941903
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: January 25, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuaki Yamana, Jun Kamiya
  • Patent number: D958227
    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