Patents by Inventor Takeshi Takahashi

Takeshi Takahashi 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: 11660031
    Abstract: A method is disclosed for testing hearing in infants based on pupil dilation response. It does not require sedation or depend on subjective judgments of human testers. Pupil dilation response to sound is measured by presenting on a display a visually engaging video containing periodic changes; presenting sounds synchronized with the periodic changes of the video; recording images from a camera directed in front of the display, where the camera is sensitive to infrared wavelengths; processing the images to measure pupil sizes; and processing the measured pupil sizes to determine, statistically, the presence of a pupil dilation response to the sounds.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: May 30, 2023
    Assignee: University of Oregon
    Inventors: Avinash Deep Bala Singh, Terry Takeshi Takahashi
  • Patent number: 11651892
    Abstract: A method for producing a composite magnetic body includes: pressure molding a metal magnetic material into a predetermined shape, the metal magnetic material being an Fe—Si-based metal magnetic material; performing a primary heat treatment of heating the metal magnetic material in an atmosphere with a first oxygen partial pressure to form an Si oxide coating film on a surface of the metal magnetic material; and performing a secondary heat treatment of heating the metal magnetic material that has undergone the primary heat treatment in an atmosphere with a second oxygen partial pressure, which is higher than the first oxygen partial pressure, to form an Fe oxide layer at least partially on a surface of the Si oxide coating film.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: May 16, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LID.
    Inventor: Takeshi Takahashi
  • Publication number: 20230105357
    Abstract: In order to maintain high haze value of thermoplastic liquid crystalline polymer while to improve total light transmittance, provided is a thermoplastic liquid crystalline polymer molded body having a haze value of 99% or higher, and a thermal expansion coefficient of 16 to 27 ppm/° C., and satisfying a correlation between a light absorption coefficient (?) and a thickness (x) as: ??0.21x?0.55.
    Type: Application
    Filed: December 9, 2022
    Publication date: April 6, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Shoma SASAKI, Takahiro NAKASHIMA, Takeshi TAKAHASHI, Shinji HIRAMATSU
  • Publication number: 20230075546
    Abstract: Provided is a magnetic recording medium that is able to achieve both an improvement in electromagnetic conversion characteristics and ensuring of high long-term reliability. The magnetic recording medium includes a magnetic layer and a base. The magnetic layer includes magnetic powders including ?-iron oxide. A ratio (Hrp/Hc) of residual coercivity (Hrp) measured in a perpendicular direction of the magnetic recording medium with use of a pulse magnetic field to perpendicular coercivity (Hc) of the magnetic recording medium is 2.0 or less. Saturation magnetization (Mst) per unit area of the magnetic recording medium is 4.5 mA or greater.
    Type: Application
    Filed: January 20, 2021
    Publication date: March 9, 2023
    Inventors: Takeshi TAKAHASHI, Katsunori MAESHIMA, Minoru YAMAGA, Masaru TERAKAWA, Natsuki ICHISE, Tomoe SATO, Takashi KATAGUCHI, Atsuya TOWATA, Kimihiro OZAKI, Akihiro MATSUMOTO
  • Publication number: 20230062271
    Abstract: A lever of a connector can rotate between a first position and a second position and can slide between the second position and a third position. When the lever is rotated to the second position in a state in which the connector whose lever is on the first position is on a fitting preparation position with respect to a mating connector, the connector is drawn to a fitting position, which is closer to the mating connector, by a cam mechanism and a main terminal of the connector and a mating main terminal of the mating connector are connected with each other. When the lever is slid to the third position, a flange portion provided to a housing of the connector and a mating flange portion provided to a mating housing of the mating connector are accommodated in a groove portion of the lever.
    Type: Application
    Filed: August 18, 2022
    Publication date: March 2, 2023
    Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITED
    Inventors: Takeshi TAKAHASHI, Ryota MIZUTANI
  • Patent number: 11551711
    Abstract: A cobalt ferrite magnetic powder includes magnetic particles that have a uniaxial crystal magnetic anisotropy and contain cobalt ferrite. A peak top 2? of a (3, 1, 1) plane determined by powder X-ray diffractometry using a CoK? ray is 41.3° or more and 41.5° or less. Some Cos contained in the magnetic particles are substituted with at least one selected from the group consisting of Zn, Ge, and a transition metal element other than Fe.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: January 10, 2023
    Assignee: Sony Group Corporation
    Inventors: Natsuki Ichise, Masaru Terakawa, Katsunori Maeshima, Takashi Kataguchi, Takeshi Takahashi
  • Patent number: 11545287
    Abstract: A dust core including a metal magnetic powder and a resin, in which the metal magnetic powder shows a particle diameter of more than 0 ?m and 200 ?m or less, a number percentage of 5.0% or more of metal magnetic particles among the metal magnetic particles composing the metal magnetic powder are at least partially surface-coated with an inorganic compound including an alkaline earth metal, in a coating part coating the metal magnetic particles, an amount of the alkaline earth metal is 10.0 mass % or more, when a total amount of a metal element included in the coating part is 100 mass %, is provide. The dust core is superior in a corrosion-resistance.
    Type: Grant
    Filed: September 1, 2017
    Date of Patent: January 3, 2023
    Assignee: TDK CORPORATION
    Inventors: Ryoma Nakazawa, Yousuke Futamata, Takeshi Takahashi
  • Publication number: 20220392488
    Abstract: A magnetic recording medium is a tape-shaped magnetic recording medium that has a recording layer including an ?-iron oxide particle. An area ratio Rlow (=(Slow/Stotal)×100) of a total area Stotal of an SFD curve of the recording layer in a perpendicular direction and an area Slow of the SFD curve in which a coercivity Hc is in a range from ?500 [Oe]?Hc?500 [Oe] is equal to or less than 5.5%.
    Type: Application
    Filed: September 4, 2020
    Publication date: December 8, 2022
    Inventors: Natsuki ICHISE, Minoru YAMAGA, Katsunori MAESHIMA, Masaru TERAKAWA, Takeshi TAKAHASHI, Tomoe SATO, Takashi KATAGUCHI
  • Publication number: 20220324018
    Abstract: A method for producing a composite magnetic body includes: pressure molding a metal magnetic material into a predetermined shape, the metal magnetic material being an Fe—Si-based metal magnetic material; performing a primary heat treatment of heating the metal magnetic material in an atmosphere with a first oxygen partial pressure to form an Si oxide coating film on a surface of the metal magnetic material; and performing a secondary heat treatment of heating the metal magnetic material that has undergone the primary heat treatment in an atmosphere with a second oxygen partial pressure, which is higher than the first oxygen partial pressure, to form an Fe oxide layer at least partially on a surface of the Si oxide coating film.
    Type: Application
    Filed: June 8, 2022
    Publication date: October 13, 2022
    Inventor: Takeshi TAKAHASHI
  • Publication number: 20220296079
    Abstract: A control device includes a processor including at least one hardware unit, the control device controlling an endoscope having a channel through which a treatment instrument is inserted, the endoscope including an insertion portion configured to be inserted into a subject and a rigidity variable unit provided in the insertion portion and configured to be capable of partially changing rigidity of the insertion portion. The processor detects formation of a bent portion in the insertion portion based on a detection result of a shape of the insertion portion, and in a case where the processor detects the formation of the bent portion in the insertion portion, the processor performs control of increasing rigidity of the rigidity variable unit located on a proximal end side in the bent portion.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 22, 2022
    Applicant: OLYMPUS CORPORATION
    Inventor: Takeshi TAKAHASHI
  • Patent number: 11448329
    Abstract: A valve device includes a body having a gas flow path. When the gas is charged, the first flow path is located upstream of the intersecting portion, and the second flow path is located downstream of the intersecting portion. The gas flow path has a check valve mechanism and a drive mechanism. The check valve mechanism opens a valve when the gas is charged and closes the valve when the gas charge is completed, and the drive mechanism opens the valve of the check valve mechanism and holds the open state of the valve of the check valve mechanism when the gas is discharged from the tank. The check valve mechanism includes a valve seat, and the valve seat is disposed in the first flow path.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: September 20, 2022
    Assignee: JTEKT CORPORATION
    Inventors: Kazushi Numazaki, Takeshi Takahashi, Kazuhiro Takabayashi, Tomohiro Ishihara, Natsuki Iwamoto
  • Patent number: 11440093
    Abstract: A composite particle of the present invention comprises a soft magnetic iron-based particle, a coating layer disposed on a surface of the soft magnetic iron-based particle, and a spherical nanopowder with at least a part thereof disposed inside of the coating layer. The coating layer is a layer of a compound comprising Fe, Si, O, B and N; and the nanopowder is a powder of a compound comprising O, N and at least one element selected from the group consisting of Fe, Si, Zr, Co, Al, Mg, Mn and Ni.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: September 13, 2022
    Assignee: TDK Corporation
    Inventor: Takeshi Takahashi
  • Publication number: 20220243872
    Abstract: A fusible plug for a high pressure gas cylinder includes a communication hole filled with a low melting point alloy, a porous metal sintered body is press-fitted in at least a part of the communication hole in a length direction, all or a part of the porous metal sintered body is impregnated with the low melting point alloy to solidify and composite the low melting point alloy. It is preferable that: the low melting point alloy has a melting point of 110° C.; the porous metal sintered body to be press-fitted is a porous metal sintered body having pores with an area ratio of 30% or more and 50% or less and having pores with a diameter exceeding 5 ?m among the pores of 80% or more in terms of area ratio to all the pores; and the porous metal sintered body is a porous austenitic stainless steel sintered body.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 4, 2022
    Applicants: NIPPON PISTON RING CO., LTD., JTEKT CORPORATION
    Inventors: Hiroshi TAKIGUCHI, Atsuya AOKI, Kazushi NUMAZAKI, Takeshi TAKAHASHI, Natsuki IWAMOTO, Yudai WATANABE
  • Publication number: 20220184535
    Abstract: An inline-type strainer including a drain line and a screen configured to be attachable to and detachable from a housing is provided. A screen is supported to be attachable to and detachable from a lid. A lid coupling mechanism that couples a housing and the lid when the lid is attached to the housing is provided between a bottom surface of the housing facing the filter chamber and a lower end of the lid. A lower discharge flow path is formed in a lower coupling element on a side close to the housing constituting the lid coupling mechanism, and an upper discharge flow path is formed in the upper coupling element on a side close to the lid constituting the lid coupling mechanism. When the lid is attached to the housing, a coupling state is established between the upper and lower coupling elements, and the upper and lower discharge flow paths communicate with each other, and thus a drain line is constructed.
    Type: Application
    Filed: April 6, 2020
    Publication date: June 16, 2022
    Inventors: Hideo OKUNO, Takeshi TAKAHASHI, Takanori HASHIHRA, Ichiro MORITA
  • Publication number: 20220139423
    Abstract: [Solving Means] A tape-shaped magnetic recording medium includes: a base; and a magnetic layer that is provided on the base and includes a magnetic powder. The magnetic powder includes magnetic particles that have a uniaxial crystal magnetic anisotropy and contain cobalt ferrite. A ratio L4/L2 of a component L4 having a multiaxial crystal magnetic anisotropy to a component L2 having a uniaxial crystal magnetic anisotropy is 0 or more and 0.25 or less, the components being obtained by applying Fourier transformation to a torque waveform of the magnetic recording medium.
    Type: Application
    Filed: February 14, 2020
    Publication date: May 5, 2022
    Inventors: Takashi KATAGUCHI, Masaru TERAKAWA, Takeshi TAKAHASHI, Natsuki ICHISE, Katsunori MAESHIMA
  • Patent number: 11291354
    Abstract: A flexible tube insertion apparatus includes: a flexible tube to be inserted into an insertion target body; a state detector to detect state information of the flexible tube relating to a shape of the flexible tube; and a bent formation determining section to determine whether first and second bent portions bent in different directions are formed on the flexible tube based on the state information. The flexible tube insertion apparatus further includes a shape changing section, arranged in the flexible tube, to actively change the shape of the flexible tube so that an angle at which a first virtual flat plane on which the first bent portion is formed and a second virtual flat plane on which the second bent portion is formed intersect becomes smaller, when the bent formation determining section determines that the first and second bent portions are formed on the flexible tube.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: April 5, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Takeshi Takahashi, Ryo Tezuka, Shuji Nakamura
  • Publication number: 20220076699
    Abstract: The present disclosure provides where a magnetic recording medium is provided and includes a base; an underlayer that is provided over the base and includes a non-magnetic powder; and a magnetic layer that is provided over the underlayer and includes a magnetic powder and a binder, wherein an average particle volume V of the magnetic powder is 1600 nm3 or less, an average thickness of the magnetic recording medium is 5.3 ?m or less, a thermal stability KuVact/kBT of the magnetic recording medium is 63 or more, and a ratio Hrp/Hc1 of a residual coercive force Hrp of the magnetic recording medium measured using a pulsed magnetic field in a perpendicular direction to a coercive force Hc1 of the magnetic recording medium in the perpendicular direction is 1.98 or less.
    Type: Application
    Filed: November 17, 2021
    Publication date: March 10, 2022
    Inventors: Takashi KATAGUCHI, Natsuki ICHISE, Takeshi TAKAHASHI
  • Patent number: 11246474
    Abstract: A insertion apparatus includes a flexible tube, a detection section that detects state information of the tube, a calculation section that calculates, based on the state information, shape information of the tube, and an input section that inputs characteristic information of the tube. The apparatus also includes a calculation section that calculates, based on the characteristic information, an operation state of a distal end of the tube, an calculation section that calculates an insertion state of the tube at a specific point closer to a proximal end than the distal end, based on the shape information, characteristic information, and operation state, and a measurement section that measures an actual operation state of the tube at the specific point.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: February 15, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Takeshi Takahashi, Yuichi Ikeda
  • Publication number: 20220036919
    Abstract: [Object] A cobalt ferrite magnetic powder includes magnetic particles that have a uniaxial crystal magnetic anisotropy and contain cobalt ferrite. A peak top 2? of a (3, 1, 1) plane determined by powder X-ray diffractometry using a CoK? ray is 41.3° or more and 41.5° or less. Some Cos contained in the magnetic particles are substituted with at least one selected from the group consisting of Zn, Ge, and a transition metal element other than Fe.
    Type: Application
    Filed: February 14, 2020
    Publication date: February 3, 2022
    Inventors: Natsuki ICHISE, Masaru TERAKAWA, Katsunori MAESHIMA, Takashi KATAGUCHI, Takeshi TAKAHASHI
  • Patent number: 11225770
    Abstract: A work arm of a work machine includes a box-shaped structure including multiple plate members, a pair of bosses attached to opposing plate members, and a cylindrical boss coupling member coupling the pair of bosses together. Each boss includes a boss body section having a pin insertion hole through which a coupling pin is inserted and extending in an arrangement direction of the plate members, and a flange section extending outward from an outer circumferential portion of the boss body section and joined to a corresponding one of the plate members via a first weld. The boss body section includes a cylindrical outer body portion on an outer surface side of the box-shaped structure and a cylindrical inner body portion on an inner surface side of the box-shaped structure. The boss coupling member is joined, at both axial ends thereof, to respective ends of the inner body portions via second welds.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: January 18, 2022
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Hiroshi Aoyama, Takayuki Shimodaira, Takeshi Takahashi, Tomoatsu Iihama