Patents by Inventor Keisuke Adachi

Keisuke Adachi 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: 12335606
    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: Grant
    Filed: March 1, 2023
    Date of Patent: June 17, 2025
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Sho Nagatsu, Kazuaki Yamana, Yoshikazu Asai, Yuki Totori, Keisuke Adachi, Shoma Mizutani, Nagisa Inoue
  • Patent number: 12321082
    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: Grant
    Filed: March 1, 2023
    Date of Patent: June 3, 2025
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yuki Totori, Kazuaki Yamana, Yoshikazu Asai, Shoma Mizutani, Keisuke Adachi, Sho Nagatsu, Nagisa Inoue
  • Patent number: 12242226
    Abstract: A toner is provided that comprises a toner particle comprising a binder resin and a wax, and an inorganic fine particle on a surface of the toner particle, wherein the binder resin comprises a resin A; the toner satisfies 2.50?SPa?SPw?4.50, where SPa (cal/cm3)0.5 is the SP value of the resin A, and SPw (cal/cm3)0.5 is the SP value of the wax; the inorganic fine particle comprises a silica fine particle whose surface has been treated with a silicone oil; in a 29Si solid-state NMR measurement of the silica fine particle, 30?B?60 and 4.0?A/B?6.0 are satisfied, taking A as an integration value of a D unit obtained by taking an integration value of a Q unit in a CP/MAS measurement as 100, and taking B as an integration value of a D unit obtained by taking an integration value of a Q unit in a DD/MAS measurement as 100.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: March 4, 2025
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Keisuke Adachi, Takayuki Toyoda, Atsuhiko Ohmori, Tomoko Sugita
  • Patent number: 12228882
    Abstract: A toner comprising: a toner particle comprising a binder resin and a hydrocarbon wax; and inorganic fine particles, wherein the inorganic fine particles include silica fine particles surface-treated with specific polydimethylsiloxanes, a total amount of trimethylsilanol in the silica fine particles is from 1.0 ppm to 5.0 ppm, where a standard value of an amount of ions of an ester group is measured by time-of-flight secondary ion mass spectrometry, one or more peaks of the standard value are present within a range of 100 nm from the surface of the toner particle, and the maximum value A(d max) among the peaks of the standard value and the standard value A(0) on the surface of the toner particle satisfy the following relationships: 1.05?A(d max)/A(0)?5.00, A(0)?0.010.
    Type: Grant
    Filed: April 21, 2022
    Date of Patent: February 18, 2025
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Atsuhiko Ohmori, Hiroki Kagawa, Keisuke Adachi, Tomoko Sugita
  • Publication number: 20240268745
    Abstract: An electrode catheter includes a base material having a thin-film shape, a shape support structure of the base material, and a plurality of electrodes provided on the base material. At least some of the plurality of electrodes are exposed on a front surface and a back surface of the base material. This can improve followability with respect to a dissection.
    Type: Application
    Filed: February 8, 2024
    Publication date: August 15, 2024
    Inventors: Kenji MORI, Toshiyuki IIJIMA, Keisuke ADACHI
  • Publication number: 20240041519
    Abstract: An intracorporeal member includes an elongate body having a distal end side, and electrodes disposed on the distal end side of the elongate body. At least the distal end side is to be inserted into a body. The electrode includes a first layer and a second layer arranged in a thickness direction of the electrode. At least a part of the second layer is located at a position farther away from the elongate body than the first layer. The first layer contains silver, gold, and carbon as main components, and contains carbon in a largest amount among silver, gold, and carbon. The second layer contains gold as a main component.
    Type: Application
    Filed: July 11, 2023
    Publication date: February 8, 2024
    Inventors: Toshiyuki IIJIMA, Keisuke ADACHI
  • Patent number: 11895388
    Abstract: A shutter unit includes a base plate having an opening, a first blade member movable between a closed state and a retracted state, a first driving member biased by a first biasing member, a second driving member biased by a second biasing member, a first charging member configured to cause the first driving member to move in the second direction against a biasing force, a second charging member configured to cause the second driving member to move in the first direction against a biasing force, and a motor configured to supply a driving force to the first and second charging members. In a case where the first charging member causes the first driving member to move, the motor rotates in a direction opposite to a rotation direction in a case where the second charging member causes the second driving member to move.
    Type: Grant
    Filed: July 12, 2022
    Date of Patent: February 6, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keisuke Adachi, Yuji Ueda, Jun Kawanami, Yoshiyuki Matsumoto
  • Patent number: 11877067
    Abstract: A shutter apparatus includes a front blade unit and a rear blade unit configured to open and close an opening for exposure control, a front drive member and a rear drive member configured to drive the front blade unit and the rear blade unit between an open position and a closed position of the opening, respectively, a front cam gear and a rear cam gear configured to charge the front drive member and the rear drive member, respectively, a front driving source and a rear driving source connected to and configured to rotate the front cam gear and the rear cam gear, respectively, and a controller configured to control the front driving source and the rear driving source based on an imaging condition so as to change driving times of the front blade unit and the rear blade unit.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: January 16, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Rentaro Imai, Jun Kawanami, Keisuke Adachi
  • Publication number: 20230384705
    Abstract: A core-shell particle includes a core, and a shell on a surface of the core. The core includes a crystalline release agent. A value of a sum of a number-average value of Feret diameter of the core-shell particle and a standard deviation of the Feret diameter of the core-shell particle is 20 to 500 nm. The shell comprises an organosilicon polymer. In a differential scanning calorimetric measurement of the core-shell particle, a maximum endothermic peak is present when a temperature is raised from 30° C. to 120° C. at 10.0° C./min, a maximum exothermic peak is present when the temperature is lowered from 120° C. to 30° C. at 10.0° C./min, and Tc (° C.) is at least 5° C. lower than Tm (° C.) where Tm is a peak temperature of the maximum endothermic peak and Tc is a peak temperature of the maximum exothermic peak.
    Type: Application
    Filed: May 26, 2023
    Publication date: November 30, 2023
    Inventors: KENJI OOKUBO, Keisuke Adachi, SHINTARO NOJI
  • 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
  • Publication number: 20230095400
    Abstract: A shutter apparatus includes a front blade unit and a rear blade unit configured to open and close an opening for exposure control, a front drive member and a rear drive member configured to drive the front blade unit and the rear blade unit between an open position and a closed position of the opening, respectively, a front cam gear and a rear cam gear configured to charge the front drive member and the rear drive member, respectively, a front driving source and a rear driving source connected to and configured to rotate the front cam gear and the rear cam gear, respectively, and a controller configured to control the front driving source and the rear driving source based on an imaging condition so as to change driving times of the front blade unit and the rear blade unit.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Inventors: Rentaro Imai, Jun Kawanami, Keisuke Adachi
  • Publication number: 20230016129
    Abstract: A shutter unit includes a base plate having an opening, a first blade member movable between a closed state and a retracted state, a first driving member biased by a first biasing member, a second driving member biased by a second biasing member, a first charging member configured to cause the first driving member to move in the second direction against a biasing force, a second charging member configured to cause the second driving member to move in the first direction against a biasing force, and a motor configured to supply a driving force to the first and second charging members. In a case where the first charging member causes the first driving member to move, the motor rotates in a direction opposite to a rotation direction in a case where the second charging member causes the second driving member to move.
    Type: Application
    Filed: July 12, 2022
    Publication date: January 19, 2023
    Inventors: Keisuke Adachi, Yuji Ueda, Jun Kawanami, Yoshiyuki Matsumoto
  • Patent number: 11528425
    Abstract: A shutter apparatus includes a front blade unit and a rear blade unit configured to open and close an opening for exposure control, a front drive member and a rear drive member configured to drive the front blade unit and the rear blade unit between an open position and a closed position of the opening, respectively, a front cam gear and a rear cam gear configured to charge the front drive member and the rear drive member, respectively, a front driving source and a rear driving source connected to and configured to rotate the front cam gear and the rear cam gear, respectively, and a controller configured to control the front driving source and the rear driving source based on an imaging condition so as to change driving times of the front blade unit and the rear blade unit.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: December 13, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Rentaro Imai, Jun Kawanami, Keisuke Adachi
  • Publication number: 20220373906
    Abstract: A toner comprising: a toner particle comprising a binder resin and a hydrocarbon wax; and inorganic fine particles, wherein the inorganic fine particles include silica fine particles surface-treated with specific polydimethylsiloxanes, a total amount of trimethylsilanol in the silica fine particles is from 1.0 ppm to 5.0 ppm, where a standard value of an amount of ions of an ester group is measured by time-of-flight secondary ion mass spectrometry, one or more peaks of the standard value are present within a range of 100 nm from the surface of the toner particle, and the maximum value A(d max) among the peaks of the standard value and the standard value A(0) on the surface of the toner particle satisfy the following relationships: 1.05?A(d max)/A(0)?5.00, A(0)?0.010.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 24, 2022
    Inventors: Atsuhiko Ohmori, Hiroki Kagawa, Keisuke Adachi, Tomoko Sugita
  • Publication number: 20220373916
    Abstract: A toner is provided that comprises a toner particle comprising a binder resin and a wax, and an inorganic fine particle on a surface of the toner particle, wherein the binder resin comprises a resin A; the toner satisfies 2.50?SPa?SPw?4.50, where SPa (cal/cm3)0.5 is the SP value of the resin A, and SPw (cal/cm3)0.5 is the SP value of the wax; the inorganic fine particle comprises a silica fine particle whose surface has been treated with a silicone oil; in a 29Si solid-state NMR measurement of the silica fine particle, 30?B?60 and 4.0?A/B?6.0 are satisfied, taking A as an integration value of a D unit obtained by taking an integration value of a Q unit in a CP/MAS measurement as 100, and taking B as an integration value of a D unit obtained by taking an integration value of a Q unit in a DD/MAS measurement as 100.
    Type: Application
    Filed: April 21, 2022
    Publication date: November 24, 2022
    Inventors: Keisuke Adachi, Takayuki Toyoda, Atsuhiko Ohmori, Tomoko Sugita
  • Publication number: 20210306544
    Abstract: A shutter apparatus includes a front blade unit and a rear blade unit configured to open and close an opening for exposure control, a front drive member and a rear drive member configured to drive the front blade unit and the rear blade unit between an open position and a closed position of the opening, respectively, a front cam gear and a rear cam gear configured to charge the front drive member and the rear drive member, respectively, a front driving source and a rear driving source connected to and configured to rotate the front cam gear and the rear cam gear, respectively, and a controller configured to control the front driving source and the rear driving source based on an imaging condition so as to change driving times of the front blade unit and the rear blade unit.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 30, 2021
    Inventors: Rentaro Imai, Jun Kawanami, Keisuke Adachi
  • Patent number: 10976642
    Abstract: A shutter unit includes a base plate with an aperture, a blade member, a first drive member, a second drive member, and a charge member configured to move the second drive member from a movement completion position to a movement start position against a biasing force on the second drive member, wherein while an image obtained from an image sensor is being displayed in an imaging apparatus during continuous imaging and the first drive member is engaged in order to maintain the retreat state of the blade member, the second drive member is moved to the movement start position by the charge member, and wherein before a display of the image ends, the first drive member moves toward the first direction so that the blade member moves from the retreat state to the closed state.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: April 13, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Keisuke Adachi
  • Publication number: 20200201142
    Abstract: A shutter unit includes a base plate with an aperture, a blade member, a first drive member, a second drive member, and a charge member configured to move the second drive member from a movement completion position to a movement start position against a biasing force on the second drive member, wherein while an image obtained from an image sensor is being displayed in an imaging apparatus during continuous imaging and the first drive member is engaged in order to maintain the retreat state of the blade member, the second drive member is moved to the movement start position by the charge member, and wherein before a display of the image ends, the first drive member moves toward the first direction so that the blade member moves from the retreat state to the closed state.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 25, 2020
    Inventor: Keisuke Adachi