Patents by Inventor Takashi Fujimoto

Takashi Fujimoto 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: 20250152028
    Abstract: There is provided a heart rate measurement system, a heart rate measurement method, and a program that enable more accurate heart rate measurement to be performed stably. Ambient light information is acquired from a moving image obtained by imaging a subject with light for each of at least three or more of a plurality of wavelength ranges, the ambient light information including at least a luminance intensity for each wavelength range of ambient light in which the moving image is captured. Further, an ambient light map in which reference ambient light information, which is the ambient light information obtained by measuring ambient light at a plurality of imaging points in advance, is registered for each of the imaging points is referred to, and a desired wavelength is selected on the basis of the ambient light information at an imaging point at which the moving image is captured. Then, a heart rate of the subject shown in the moving image is calculated on the basis of the selected wavelength.
    Type: Application
    Filed: February 20, 2023
    Publication date: May 15, 2025
    Applicant: Sony Group Corporation
    Inventor: Takashi FUJIMOTO
  • Publication number: 20250069720
    Abstract: An information processing device (20) has a log accumulation unit (21), an abnormality detection unit (23), and an accumulated log reproduction unit (22). The log accumulation unit (21) accumulates vital data of a patient (P) for each medication date as a patient log. The abnormality detection unit (23) detects abnormality data indicating an abnormal value from a patient log. The accumulated log reproduction unit (22) reproduces the patient log so as to have the abnormality data associated with the medication date.
    Type: Application
    Filed: December 16, 2022
    Publication date: February 27, 2025
    Inventors: MASANORI KATSU, TAKASHI FUJIMOTO
  • Patent number: 12198841
    Abstract: Magnetic powder includes: an epsilon-phase iron oxide-based compound selected from ?-Fe2O3 or a compound represented by Formula (1). The magnetic powder has an average particle diameter of 8 nm to 25 nm, a ratio of Hc to Hc? of from 0.6 to 1.0, and Hc? satisfying Expression (II). Hc? represents a magnetic field at which a value of Expression (I) becomes zeroin a magnetic field-magnetization curve obtained by performing measurement at a maximum applied magnetic field of 359 kA/m, a temperature of 296 K, and a magnetic field sweeping speed of 1.994 kA/m/s. M represents magnetization and H represents applied magnetic field. Hc represents a magnetic field at which magnetization becomes zero in the magnetic field-magnetization curve. In Formula (1), A represents at least one metal element other than Fe, and a represents a number that satisfies a relationship of 0<a<2.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: January 14, 2025
    Assignee: FUJIFILM Corporation
    Inventor: Takashi Fujimoto
  • Patent number: 12159657
    Abstract: Provided are a magnetic recording medium including a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ?-iron oxide powder, and an intensity ratio (Int1/Int2) of diffraction intensities obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method after the magnetic layer is pressed at a pressure of 70 atm is 1.0 or more and 6.5 or less, a magnetic tape cartridge and a magnetic recording and reproducing device each including the magnetic recording medium.
    Type: Grant
    Filed: August 24, 2023
    Date of Patent: December 3, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Eiki Ozawa, Takashi Fujimoto
  • Patent number: 12131762
    Abstract: A magnetic recording medium including a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ?-iron oxide powder, and a ratio of Hr (45°) to Hr (0°) (Hr (45°)/Hr (0°)) is 0.50 or less. The Hr (0°) is a residual coercive force Hr obtained by applying a pulse magnetic field having a pulse width of 0.76 ms in an in-plane direction of the magnetic recording medium, and the Hr (45°) is a residual coercive force Hr obtained by setting an angle of the magnetic recording medium in the in-plane direction to 0°, setting an angle of the magnetic recording medium in a perpendicular direction to 90°, and making a pulse magnetic field having a pulse width of 0.76 ms be incident from a direction inclined by 45° toward the perpendicular direction from the in-plane direction and applying the pulse magnetic field to the magnetic recording medium.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: October 29, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Fujimoto, Eiki Ozawa
  • Publication number: 20240336882
    Abstract: A chip for cell culture, including a laminate having a flow path structure inside, in which respective members constituting respective layers of the laminate are adhered by adhesive layers, and the adhesive layer includes a first adhesive layer formed of an adhesive that contains a polyester-based resin having a glass transition temperature of 37° C. or higher and 120° C. or lower.
    Type: Application
    Filed: August 25, 2022
    Publication date: October 10, 2024
    Inventors: Takashi KAMIZONO, Takashi FUJIMOTO, Takafumi AKABANE, Taku SATOH, Hiroyuki MORIGUCHI
  • Publication number: 20240327771
    Abstract: A chip for cell culture, including a laminate having a flow path structure inside, in which the laminate includes a bottom plate substrate, a flow path substrate in which a flow path is formed by laser processing, and a top plate substrate in this order, and the flow path substrate includes a resin having a glass transition temperature of 37° C. or higher, an elastic modulus at 25° C. of 1×109 Pa or more, and an elastic modulus at 150° C. of 1×107 Pa or less.
    Type: Application
    Filed: August 25, 2022
    Publication date: October 3, 2024
    Inventors: Takahiro YOSHIOKA, Takashi FUJIMOTO, Takashi KAMIZONO, Takafumi AKABANE, Taku SATOH, Hiroyuki MORIGUCHI
  • Patent number: 12014759
    Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical squareness ratio SQ of the magnetic recording medium is 0.50 or more and 0.95 or less at a measurement temperature of 25° C., and an inclination of SQ obtained from SQ at a measurement temperature of 10° C., SQ at a measurement temperature of 25° C., and SQ at a measurement temperature of 40° C. is ?0.0050° C.?1 or more and ?0.0003° C.?1 or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: June 18, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Fujimoto, Eiki Ozawa
  • Publication number: 20240140575
    Abstract: A buoyancy compensator jacket capable of following movements of a body of a diver and providing a stable holding feeling is provided. A harness in the buoyancy compensator jacket includes shoulder belts, a harness main body disposed to face a back side of the diver, and a size adjusting means that can change a back length of the harness main body in a plurality of stages.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 2, 2024
    Inventors: Taro FUJIMA, Yutaka MASUTANI, Yoshiharu TAKIZAWA, Takashi FUJIMOTO, Takuya ITO
  • Patent number: 11912381
    Abstract: The buckle of the swimming mask includes a front end portion attached to a connecting unit, a rear end portion including an insertion portion in which the head strap is inserted, and an intermediate portion between the front end portion and the rear end portion. The wound portion around which the head strap is wound in the reversible manner is disposed in the intermediate portion.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: February 27, 2024
    Assignee: TABATA CO., LTD.
    Inventor: Takashi Fujimoto
  • Patent number: 11894032
    Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical switching field distribution SFD of the magnetic recording medium is 0.20 or more and 3.00 or less at a measurement temperature of 25° C., and an inclination of SFD obtained from SFD at a measurement temperature of 10° C., SFD at a measurement temperature of 25° C., and SFD at a measurement temperature of 40° C. is 0.003° C.?1 or more and 0.080° C.?1 or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: February 6, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Eiki Ozawa, Takashi Fujimoto
  • Publication number: 20230402060
    Abstract: Provided are a magnetic recording medium including a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ?-iron oxide powder, and an intensity ratio (Int1/Int2) of diffraction intensities obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method after the magnetic layer is pressed at a pressure of 70 atm is 1.0 or more and 6.5 or less, a magnetic tape cartridge and a magnetic recording and reproducing device each including the magnetic recording medium.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 14, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Eiki OZAWA, Takashi Fujimoto
  • Patent number: 11842756
    Abstract: Provided are: a magnetic recording medium including a non-magnetic support and a magnetic layer containing a ferromagnetic powder, in which the ferromagnetic powder is an ?-iron oxide powder, a vertical magnetization amount ?m per unit area of the magnetic recording medium is 5 G·?m or more and 100 G·?m or less at a measurement temperature of 25° C., and an inclination of ?m obtained from ?m at a measurement temperature of 10° C., ?m at a measurement temperature of 25° C., and ?m at a measurement temperature of 40° C. is ?0.20 G·?m/° C. or more and ?0.03 G·?m/° C. or less; a magnetic tape cartridge including the magnetic recording medium which is a magnetic tape; and a magnetic recording and reproducing device including the magnetic recording medium.
    Type: Grant
    Filed: March 23, 2023
    Date of Patent: December 12, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Takashi Fujimoto, Eiki Ozawa
  • Publication number: 20230386515
    Abstract: Provided are a magnetic recording medium including a non-magnetic support, and a magnetic layer including a ferromagnetic powder. The ferromagnetic powder is an ?-iron oxide powder, and an intensity ratio (Int1/Int2) of diffraction intensities obtained by an X-ray diffraction analysis of the magnetic layer using an In-Plane method is 1.0 or more and 6.5 or less; and a magnetic tape cartridge and a magnetic recording and reproducing device each including the magnetic recording medium.
    Type: Application
    Filed: August 14, 2023
    Publication date: November 30, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Takashi FUJIMOTO, Eiki Ozawa
  • Publication number: 20230352224
    Abstract: A magnetic powder for a magnetic recording medium includes magnetic particles in which Ba in hexagonal barium ferrite is partially substituted with Sr, wherein a Dx volume represented by Dx volume (nm3) = Dxc × ? × (Dxa/2)2 is 2,200 nm3 or less, and an Sr/(Ba+Sr) molar ratio is 0.01 to 0.15. One that satisfies Ku ? 0.1 × [Sr/(Ba+Sr) molar ratio] + 0.13 is more preferred. For the formulas, Dxc is a crystallite diameter (nm) in a c-axis direction of a hexagonal ferrite crystal lattice, Dxa is a crystallite diameter (nm) in an a-axis direction of the same crystal lattice, ? is a circular constant, and Ku is a magnetocrystalline anisotropy constant (MJ/m3). By providing the hexagonal ferrite magnetic powder formed of fine particles, an effect of improving the perpendicular squareness ratio SQ of a magnetic recording medium is large.
    Type: Application
    Filed: March 29, 2023
    Publication date: November 2, 2023
    Inventors: Akifumi ONODERA, Yasuto MIYAMOTO, Masaki KOSHIKO, Toshio TADA, Takashi FUJIMOTO
  • Publication number: 20230317337
    Abstract: [Problem] A hexagonal barium ferrite magnetic powder formed of fine particles, wherein the anisotropic magnetic field distribution of a magnetic recording medium can be made to fall within a range effective in both improving the recording density and improving the SNR is provided. [Solution] A magnetic powder for a magnetic recording medium including magnetic particles in which Ba in hexagonal barium ferrite is partially substituted with Sr, wherein a Dx volume represented by the following formula (1) is 2,200 nm3 or less, an Sr/(Ba+Sr) molar ratio is 0.01 to 0.30, and an anisotropic magnetic field distribution is 1.00 or less. Dx volume (nm3)=Dxc×?×(Dxa/2)2??(1) Here, Dxc is a crystallite diameter (nm) in a c-axis direction of a hexagonal ferrite crystal lattice, Dxa is a crystallite diameter (nm) in an a-axis direction of the same crystal lattice, and n is a circular constant.
    Type: Application
    Filed: March 29, 2023
    Publication date: October 5, 2023
    Inventors: Akifumi ONODERA, Yasuto Miyamoto, Masaki Koshiko, Toshio Tada, Takashi Fujimoto
  • Publication number: 20230290375
    Abstract: The magnetic recording medium includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. A magnetic tape cartridge and a magnetic recording and reproducing device include the magnetic recording medium. The ferromagnetic powder is an ?-iron oxide powder, and a ferromagnetic powder filling rate of a magnetic layer cross section obtained by observing a cross section of the magnetic layer with a scanning electron microscope is 0.60 or more and 0.80 or less.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 14, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Eiki OZAWA, Takashi FUJIMOTO
  • Publication number: 20230290376
    Abstract: The magnetic recording medium includes a non-magnetic support, and a magnetic layer including a ferromagnetic powder. A magnetic tape cartridge and a magnetic recording and reproducing device include the magnetic recording medium. The ferromagnetic powder is an ?-iron oxide powder, and a ferromagnetic powder filling rate of a magnetic layer surface obtained by observing a surface of the magnetic layer with a scanning electron microscope is 0.40 or more and 0.60 or less.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 14, 2023
    Applicant: FUJIFILM Corporation
    Inventors: Takashi FUJIMOTO, Eiki OZAWA
  • Patent number: 11747136
    Abstract: A shape generation unit generates three-dimensional data of an adjustment workpiece by synthesizing a plurality of pieces of profile data generated corresponding to each position in a Y1 direction due to relative movement of the adjustment workpiece having a spherical surface in a movement direction A of an imaging head corresponding to the Y1 direction. A sphere information calculation unit calculates a parameter of the spherical surface defined by a plurality of points included in the three-dimensional data. A distortion amount calculation unit calculates a distortion amount of the spherical surface based on the parameter. A correction value calculation unit calculates at least one of a first rotation angle correction value about an X2 axis and a second rotation angle correction value about a Z2 axis in the plurality of pieces of profile data constituting the three-dimensional data so as to reduce the distortion amount.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: September 5, 2023
    Assignee: KEYENCE CORPORATION
    Inventor: Takashi Fujimoto
  • Patent number: 11731746
    Abstract: In a swimming mask, a skirt includes a circumferential wall in an annular shape extending rearward from a lens frame, and a seal portion disposed behind the circumferential wall to be brought into contact with a face of a wearer. The skirt also includes a high stiffness annular region disposed rearward apart from the lens frame, extending in both side regions and an upper region of a mask body, and having higher stiffness than stiffness of other part of the skirt.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: August 22, 2023
    Assignee: TABATA CO., LTD.
    Inventor: Takashi Fujimoto