Patents by Inventor Masayasu Shigematsu

Masayasu Shigematsu 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: 11500270
    Abstract: An accessory attachable to and detachable from an image pickup apparatus includes a second mount portion including a plurality of second bayonet claw portions capable of engaging with a plurality of first bayonet claw portions, a plurality of second terminals capable of contacting with a plurality of first terminals, an accessory body, and a mount fixing member for fixing the second mount portion to the accessory body. The plurality of second terminals is provided at positions different from positions of the plurality of second bayonet claw portions, and all of multiple second terminals, among the plurality of second terminals, used in communication between the image pickup apparatus and the accessory are provided at predetermined positions.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: November 15, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahisa Tamura, Kunihiko Sasaki, Toshinori Yamazaki, Masayasu Shigematsu
  • Publication number: 20220247904
    Abstract: A viewfinder unit includes an optical member between a display and an eyepiece, a first member holding the optical member in a direction orthogonal to an optical axis of the optical member, an illumination device, a second member holding the illumination device, a sensor capable of picking up a photographer's eye image, and an opening wider than a display area of the display in an optical axis direction of the optical member. When the eyepiece is viewed in the optical axis direction, the illumination device is inside the opening and outside the display area. Part of a first area of the optical member, projecting from an outline of the first member in the optical axis direction, is inside the opening in the orthogonal direction, and at least one of the illumination device and the second member is in a second area surrounded by the outline and the first area.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 4, 2022
    Inventor: Masayasu Shigematsu
  • Publication number: 20220082907
    Abstract: An adapter device includes a first mount on one side and a second mount on another side. The first mount is detachably mounted to an imaging apparatus, and the second mount is detachably mounted to an accessory. The first mount has first through third mount recesses and first through third mount claws, disposed following a circumferential direction. The second mount has fourth through sixth mount recesses and fourth through sixth mount claws, disposed following the circumferential direction. The first through third mount claws are insertable to mount recesses on another imaging apparatus. The fourth through sixth mount claws are insertable to mount recesses on another accessory. A smallest angle range out of angle ranges in the circumferential direction of the first through third mount recesses is equal to or smaller than a smallest angle range out of angle ranges in the circumferential direction of the fourth through sixth mount claws.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Inventor: Masayasu Shigematsu
  • Patent number: 11269240
    Abstract: An adapter device includes a first mount on one side and a second mount on another side. The first mount is detachably mounted to an imaging apparatus, and the second mount is detachably mounted to an accessory. The first mount has first through third mount recesses and first through third mount claws, disposed following a circumferential direction. The second mount has fourth through sixth mount recesses and fourth through sixth mount claws, disposed following the circumferential direction. The first through third mount claws are insertable to mount recesses on another imaging apparatus. The fourth through sixth mount claws are insertable to mount recesses on another accessory. A smallest angle range out of angle ranges in the circumferential direction of the first through third mount recesses is equal to or smaller than a smallest angle range out of angle ranges in the circumferential direction of the fourth through sixth mount claws.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 8, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Masayasu Shigematsu
  • Patent number: 11199783
    Abstract: An optical component holding apparatus which is capable of easily correcting tilts of optical components by reducing distortion of the optical components themselves even if the optical components are not substantially circular. A first lens and a second lens which are the optical components are housed in a lens holder. An elastic member urges the first lens against a lens holder to determine a position of the first lens in a direction of an optical axis. The lens holder, the first lens, and the elastic member abut against one another at three positions that are substantially the same when the lens holder, the first lens, and the elastic member are viewed in the direction of the optical axis.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: December 14, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: 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: 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: 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: 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
  • 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