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).
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Patent number: 11440093Abstract: 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: GrantFiled: August 11, 2020Date of Patent: September 13, 2022Assignee: TDK CorporationInventor: Takeshi Takahashi
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Publication number: 20220243872Abstract: 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: ApplicationFiled: January 28, 2022Publication date: August 4, 2022Applicants: NIPPON PISTON RING CO., LTD., JTEKT CORPORATIONInventors: Hiroshi TAKIGUCHI, Atsuya AOKI, Kazushi NUMAZAKI, Takeshi TAKAHASHI, Natsuki IWAMOTO, Yudai WATANABE
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Publication number: 20220184535Abstract: 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: ApplicationFiled: April 6, 2020Publication date: June 16, 2022Inventors: Hideo OKUNO, Takeshi TAKAHASHI, Takanori HASHIHRA, Ichiro MORITA
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Publication number: 20220139423Abstract: [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: ApplicationFiled: February 14, 2020Publication date: May 5, 2022Inventors: Takashi KATAGUCHI, Masaru TERAKAWA, Takeshi TAKAHASHI, Natsuki ICHISE, Katsunori MAESHIMA
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Patent number: 11291354Abstract: 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: GrantFiled: June 19, 2019Date of Patent: April 5, 2022Assignee: OLYMPUS CORPORATIONInventors: Takeshi Takahashi, Ryo Tezuka, Shuji Nakamura
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Publication number: 20220076699Abstract: 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: ApplicationFiled: November 17, 2021Publication date: March 10, 2022Inventors: Takashi KATAGUCHI, Natsuki ICHISE, Takeshi TAKAHASHI
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Patent number: 11246474Abstract: 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: GrantFiled: November 7, 2018Date of Patent: February 15, 2022Assignee: OLYMPUS CORPORATIONInventors: Takeshi Takahashi, Yuichi Ikeda
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Publication number: 20220036919Abstract: [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: ApplicationFiled: February 14, 2020Publication date: February 3, 2022Inventors: Natsuki ICHISE, Masaru TERAKAWA, Katsunori MAESHIMA, Takashi KATAGUCHI, Takeshi TAKAHASHI
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Patent number: 11225770Abstract: 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: GrantFiled: April 9, 2018Date of Patent: January 18, 2022Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Hiroshi Aoyama, Takayuki Shimodaira, Takeshi Takahashi, Tomoatsu Iihama
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Publication number: 20210378485Abstract: A variable-rigidity device includes a tubular member including a plurality of high-rigidity portions and low-rigidity portions arranged along a longitudinal axis; a core member arranged on an inner side of the tubular member and including a plurality of high-rigidity core portions and low-rigidity core portions; and an actuator configured to relatively move the core member with respect to the tubular member, in which the actuator is configured to cause a first force to repeatedly fluctuate with a passage of time, the first force causing the core member to relatively move with respect to the tubular member in an axial direction along the longitudinal axisType: ApplicationFiled: August 23, 2021Publication date: December 9, 2021Applicant: OLYMPUS CORPORATIONInventors: Tomoyuki KUGO, Takeshi TAKAHASHI, Tomohiro KITANAKA
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Publication number: 20210369084Abstract: A flexible tube insertion apparatus includes an insertion section inserted into an insertion target conduit, a rigidity variable member disposed inside the insertion section and capable of changing rigidity, and a binding member configured to bind a proximal end portion of the rigidity variable member to be capable of changing a pressing force applied to an outer circumferential surface of the proximal end portion.Type: ApplicationFiled: August 18, 2021Publication date: December 2, 2021Applicant: OLYMPUS CORPORATIONInventors: Shuji NAKAMURA, Takeshi TAKAHASHI
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Patent number: 11183213Abstract: The present disclosure provides a tape-shaped magnetic recording medium, including: a base; and a magnetic layer that is provided on the base and contains a magnetic powder, in which an average particle volume V of the magnetic powder is 2,000 nm3 or less, an average thickness of the magnetic recording medium is 5.3 ?m or less, a thermal stability KuV/kBT of the magnetic recording medium is 60 or more, and a ratio Hrp/Hc1 of a residual coercive force Hrp of the magnetic recording medium measured using a pulsed magnetic field to a coercive force Hc1 of the magnetic recording medium in a perpendicular direction is 2.10 or less.Type: GrantFiled: July 1, 2020Date of Patent: November 23, 2021Assignee: Sony CorporationInventors: Takashi Kataguchi, Natsuki Ichise, Takeshi Takahashi
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Publication number: 20210338055Abstract: A flexible tube insertion device includes a flexible and elongated insertion portion, a rigidity changeable mechanism extending in a longitudinal direction of the insertion portion in a rigidity changeable range of at least part of the insertion portion and configured to change bending rigidity of the rigidity changeable range, and a processor configured to perform, on the rigidity changeable mechanism, control for changing an insertion shape of the insertion portion being inserted into a subject. The rigidity changeable mechanism performs, in accordance with control by the processor, operation for sequentially increasing bending rigidity of the rigidity changeable range in a direction from a central part of the rigidity changeable range to each end part of the rigidity changeable range.Type: ApplicationFiled: July 13, 2021Publication date: November 4, 2021Applicant: OLYMPUS CORPORATIONInventors: Ryo TEZUKA, Takeshi TAKAHASHI
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Patent number: 11137082Abstract: There is provided an angle type check valve which enables simple and quick replacement operations of a valve body and a valve seat without releasing a piping coupled state and has excellent maintainability. In the angle type check valve according to the present invention, as a valve unit, a valve seat, a valve body, and a hinge mechanism are integrally assembled so as to be made into a unit part. The valve unit is attachable to and detachable from a unit fitting portion in the valve box main body. A gripping member is provided on the valve seat. As a result, access to the valve unit attached to the unit fitting portion through the access hole becomes remarkably easier. Therefore, a maintenance operator can perform a fitting operation and a removal operation of the valve unit to and from the unit fitting portion quickly with high work efficiency.Type: GrantFiled: February 16, 2018Date of Patent: October 5, 2021Assignee: Three-M Industry Co., Ltd.Inventors: Hideo Okuno, Hiroshi Kaimoto, Takeshi Takahashi, Nobuya Uda, Takanori Hashihira
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Patent number: 11137083Abstract: There is provided an angle type check valve which enables simple and quick replacement operations of a valve body and a valve seat without releasing a piping coupled state and has excellent maintainability. The angle type check valve according to the present invention includes: a valve box main body which is provided with an inflow port opened on a lower side, an outflow port opened on a lateral side, and an access hole opened on an upper side, and in which a valve chamber that has a bent shape is formed; a lid body which seals the access hole; a valve seat which is provided with a valve port; a valve body which opens and closes the valve port; and a hinge mechanism which supports the valve body. As a valve unit, the valve seat, the valve body, and the hinge mechanism are integrally assembled so as to be made into a unit part. The valve unit is attached to and detached from a unit fitting portion in the valve box main body.Type: GrantFiled: September 21, 2017Date of Patent: October 5, 2021Assignee: Three-M Industry Co., Ltd.Inventors: Hideo Okuno, Hiroshi Kaimoto, Takeshi Takahashi, Nobuya Uda, Takanori Hashihira
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Publication number: 20210295868Abstract: It is an object of the present disclosure to improve preservation stability of a magnetic recording medium including a magnetic powder having a small average particle volume. The present disclosure provides a tape-shaped magnetic recording medium, including: a base; and a magnetic layer that is provided on the base and contains a magnetic powder, in which an average particle volume V of the magnetic powder is 2,000 nm3 or less, an average thickness of the magnetic recording medium is 5.3 ?m or less, a thermal stability KuV/kBT of the magnetic recording medium is 60 or more, and a ratio Hrp/Hc1 of a residual coercive force Hrp of the magnetic recording medium measured using a pulsed magnetic field to a coercive force Hc1 of the magnetic recording medium in a perpendicular direction is 2.10 or less.Type: ApplicationFiled: July 1, 2020Publication date: September 23, 2021Inventors: Takashi KATAGUCHI, Natsuki ICHISE, Takeshi TAKAHASHI
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Publication number: 20210259221Abstract: An object of the present invention is to provide an immunodeficient mouse which is capable of eliminating effects of immune cells from the immunodeficient mouse against human antibodies and in which human cells are engrafted at high level. Deletion of a mouse FcgR gene from an NOG mouse results in a mouse that does not exhibit antibody-dependent cellular cytotoxic activity on tumors, and in the mouse, human cells can be engrafted at significantly higher level than that in the NOG mouse. Furthermore, by introducing the human IL-15 gene into the mouse and engrafting a human NK cell in the mouse, only human NK cells become effector cells to enable evaluation of ADCC activity.Type: ApplicationFiled: September 25, 2019Publication date: August 26, 2021Inventors: Takeshi Takahashi, Ikumi Katano
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Patent number: 11100776Abstract: Provided is an imaging apparatus disposed within a building and wirelessly transmitting a captured image to a plurality of electronic devices. The imaging apparatus includes: a camera; a receiver that receives information regarding a distance between the plurality of electronic devices and the building from each of the plurality of electronic devices; and a controller having a first operation mode in which the camera starts capturing when an object moves and a second operation mode in which the camera does not start capturing video even when the object moves, the controller switching between the first operation mode and the second operation mode based on the information.Type: GrantFiled: November 12, 2019Date of Patent: August 24, 2021Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Takeshi Takahashi, Takanobu Machida
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Publication number: 20210251074Abstract: Provided is a thermoplastic liquid crystal polymer film (TLCP film) having a dielectric constant in a thickness direction of the film, which is suitable for a millimeter-wave radar substrate. The TLCP film is a film comprising a thermoplastic polymer capable of forming an optically anisotropic melt phase, wherein the TLCP film has a dielectric constant of from 2.5 to 3.2 in the thickness direction of the film at a temperature of 23° C. and a frequency of 20 GHz, and a heat deformation temperature of from 180 to 320° C. The TLCP film has, on a film plane, dielectric constants of from 2.6 to 3.7 at a temperature of 23° C. and a frequency of 15 GHz both in one direction of the film and in a direction perpendicular to the one direction of the film.Type: ApplicationFiled: April 30, 2021Publication date: August 12, 2021Applicant: KURARAY CO., LTD.Inventors: Minoru ONODERA, Tatsuya SUNAMOTO, Takeshi TAKAHASHI, Takahiro NAKASHIMA
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Patent number: 11076746Abstract: A flexible tube insertion apparatus including a flexible tube to be inserted into an insertion target is provided. The apparatus includes a variable stiffness section disposed in the tube and configured to change a bending stiffness of the tube, a variable stiffness drive section configured to drive the variable stiffness section, a rotation sensor configured to detect rotation of the tube about a central axis, and an insertion shape sensor configured to detect a curved shape of the tube. A variable stiffness controller drives the drive section so that a bending stiffness of the variable stiffness section is increased based on information detected by the rotation sensor and detected by the insertion shape sensor, when the tube forms a loop and rotates about the axis.Type: GrantFiled: June 21, 2019Date of Patent: August 3, 2021Assignee: OLYMPUS CORPORATIONInventors: Yuichi Ikeda, Takeshi Takahashi, Ryo Tezuka