Patents by Inventor Takahiro Iwamoto
Takahiro Iwamoto 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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Publication number: 20240145116Abstract: An insulated wire including: a linear conductor; and an insulating layer that covers an outer peripheral surface of the conductor, wherein the insulating layer contains, as residual solvents, a first solvent having a relative permittivity of 15 or more and a second solvent having a relative permittivity of less than 15, a first ratio that is a ratio of a content of the second solvent to a total content of the first solvent and the second solvent contained in the insulating layer is 50% by mass or more, and a second ratio that is a ratio of the content of the second solvent to the total content of the first solvent and the second solvent contained in the insulating layer after a heating treatment of heating the insulated wire at 350° C. for 1 minute is higher than the first ratio.Type: ApplicationFiled: May 2, 2022Publication date: May 2, 2024Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., SUMITOMO ELECTRIC WINTEC, INC.Inventors: Takahiro IWAMOTO, Masaaki YAMAUCHI, Hirotsugu MOCHIDA
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Patent number: 11924985Abstract: A display device includes a display panel that includes a first hole and a device housing that is configured such that the display panel is fastened and fixed to the device housing by a screw passed through the first hole and screwed into the screw hole. The display panel includes a display-side positioning part which is configured to fit to a portion of the device housing to perform positioning of the display panel with respect to the device housing and which includes the first hole, and the device housing includes a housing-side positioning part which is configured to fit to the display-side positioning part to perform the positioning and which includes a second hole formed so as to communicate with the first hole when the housing-side positioning part is fitted to the display-side positioning part.Type: GrantFiled: October 6, 2022Date of Patent: March 5, 2024Assignee: YAZAKI CORPORATIONInventors: Junichi Ikumi, Masaaki Sano, Naoki Ueno, Akira Masuda, Takahiro Shimada, Takeshi Iwamoto, Shota Kosuga, Ryuta Suzuki, Satoru Kanazawa, Junnosuke Nishimura
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Publication number: 20240032431Abstract: Provided is a piezoelectric film having high piezoelectric performance. The piezoelectric film is a piezoelectric film including a piezoelectric layer consisting of a polymer-based piezoelectric composite material that contains piezoelectric particles in a matrix containing a polymer material, and electrode layers formed on both surfaces of the piezoelectric layer, in which the piezoelectric particles are particles containing lead zirconate titanate, and in a cross section of the piezoelectric layer in a thickness direction, a ratio of an area of a region where Pb/(Pb+Zr) is 90% or greater to an area of the lead zirconate titanate particles is in a range of 0.2% to 4%.Type: ApplicationFiled: October 5, 2023Publication date: January 25, 2024Applicant: FUJIFILM CorporationInventors: Takahiro IWAMOTO, Tomoko TAHARA
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Patent number: 11501799Abstract: Provided are a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support, in which the magnetic layer contains an oxide abrasive, an average particle diameter of the oxide abrasive obtained from a secondary ion image acquired by irradiating a surface of the magnetic layer with a focused ion beam is greater than 0.08 ?m and 0.14 ?m or smaller, and an absolute value ?N of a difference between a refractive index Nxy measured with respect to an in-plane direction of the magnetic layer and a refractive index Nz measured with respect to a thickness direction of the magnetic layer is 0.25 to 0.40, and a magnetic recording and reproducing device including the magnetic tape.Type: GrantFiled: March 27, 2020Date of Patent: November 15, 2022Assignee: FUJIFILM CorporationInventors: Hidemasa Hosoda, Takuto Kurokawa, Norihito Kasada, Takahiro Iwamoto
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Patent number: 11468911Abstract: The magnetic tape includes a non-magnetic support; a non-magnetic layer including a non-magnetic powder and a binding agent on the non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic layer, in which a total thickness of the non-magnetic layer and the magnetic layer is equal to or smaller than 0.60 ?m, an isoelectric point of a surface zeta potential of the magnetic layer is equal to or greater than 5.5, the magnetic layer includes an oxide abrasive, and an average particle diameter of the oxide abrasive obtained from a secondary ion image obtained by irradiating the surface of the magnetic layer with a focused ion beam is 0.04 ?m to 0.08 ?m.Type: GrantFiled: October 21, 2019Date of Patent: October 11, 2022Assignee: FUJIFILM CorporationInventors: Takahiro Iwamoto, Norihito Kasada
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Patent number: 11466707Abstract: A fluid leakage detection system has a detection space to which working oil leaked out through a rod seal is guided; the rod seal being configured to seal an annular gap between a piston rod and a cylinder head; a sensor unit configured to detect pressure in the detection space; and a controller configured to acquire detected result from the sensor unit, wherein the controller has: a calculation unit configured to calculate a pressure parameter representing a pressure fluctuation in the detection space; a determination unit configured to determine occurrence of leakage of the working oil based on the pressure parameter; and the pressure parameter includes an upper limit value and a lower limit value of the pressure fluctuation obtained from the detected result detected by the sensor unit within a predetermined detection period.Type: GrantFiled: April 23, 2019Date of Patent: October 11, 2022Assignee: KYB CORPORATIONInventors: Yusuke Takahashi, Takahiro Iwamoto, Keitaro Yoshida, Takayoshi Kikuchi
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Patent number: 11462242Abstract: Provided are a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support, in which the magnetic layer contains an oxide abrasive, an average particle diameter of the oxide abrasive obtained from a secondary ion image acquired by irradiating a surface of the magnetic layer with a focused ion beam is 0.04 ?m to 0.08 ?m, and an absolute value ?N of a difference between a refractive index Nxy measured with respect to an in-plane direction of the magnetic layer and a refractive index Nz measured with respect to a thickness direction of the magnetic layer is 0.25 to 0.40, and a magnetic recording and reproducing device including the magnetic tape.Type: GrantFiled: May 21, 2021Date of Patent: October 4, 2022Assignee: FUJIFILM CorporationInventors: Takahiro Iwamoto, Hidemasa Hosoda, Norihito Kasada, Takuto Kurokawa
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Patent number: 11373680Abstract: Provided are a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support, in which the magnetic layer contains an oxide abrasive, an average particle diameter of the oxide abrasive obtained from a secondary ion image acquired by irradiating a surface of the magnetic layer with a focused ion beam is 0.04 ?m to 0.08 ?m, and an absolute value ?N of a difference between a refractive index Nxy measured with respect to an in-plane direction of the magnetic layer and a refractive index Nz measured with respect to a thickness direction of the magnetic layer is 0.25 to 0.40, and a magnetic recording and reproducing device including the magnetic tape.Type: GrantFiled: March 27, 2020Date of Patent: June 28, 2022Assignee: FUJIFILM CorporationInventors: Takahiro Iwamoto, Hidemasa Hosoda, Norihito Kasada, Takuto Kurokawa
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Patent number: 11339810Abstract: A fluid leakage detection system includes: a measurement unit configured to detect leakage of working oil in a hydraulic cylinder; and a controller configured to acquire a measurement result from the measurement unit, wherein the controller diagnoses that a battery depletion has been caused in a battery in a case in which it is determined that a data from the measurement unit has not been acquired and it is determined that the battery of the measurement unit has been in a low-remaining-battery-level state, and the controller diagnoses that a communication abnormality has been caused in a first communication part of the measurement unit in a case in which it is determined that the data from the measurement unit has not been acquired and it is determined that the battery has not been in the low-remaining-battery-level state.Type: GrantFiled: August 5, 2019Date of Patent: May 24, 2022Assignee: KYB CORPORATIONInventors: Takayoshi Kikuchi, Keitaro Yoshida, Takahiro Iwamoto
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Publication number: 20220115579Abstract: Provided is a piezoelectric film capable of realizing an electroacoustic conversion film with an excellent heat dissipation property, in which a sufficient sound pressure with respect to an input operating voltage is obtained. The piezoelectric film is a piezoelectric film including a polymer-based piezoelectric composite material which contains piezoelectric particles in a matrix containing a polymer material, electrode layers which are laminated on both surfaces of the polymer-based piezoelectric composite material, and a protective layer laminated on a surface of at least one electrode layer, in which in a case where a cross section of the piezoelectric film is observed with a scanning electron microscope, at least one electrode layer has a plurality of projections directed toward the protective layer, and the number of projections is in a range of 2 to 40 per visual field of 85 ?m in the cross section.Type: ApplicationFiled: December 20, 2021Publication date: April 14, 2022Applicant: FUJIFILM CorporationInventor: Takahiro IWAMOTO
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Publication number: 20210287712Abstract: Provided are a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support, in which the magnetic layer contains an oxide abrasive, an average particle diameter of the oxide abrasive obtained from a secondary ion image acquired by irradiating a surface of the magnetic layer with a focused ion beam is 0.04 ?m to 0.08 ?m, and an absolute value ?N of a difference between a refractive index Nxy measured with respect to an in-plane direction of the magnetic layer and a refractive index Nz measured with respect to a thickness direction of the magnetic layer is 0.25 to 0.40, and a magnetic recording and reproducing device including the magnetic tape.Type: ApplicationFiled: May 21, 2021Publication date: September 16, 2021Applicant: FUJIFILM CorporationInventors: Takahiro IWAMOTO, Hidemasa Hosoda, Norihito Kasada, Takuto Kurokawa
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Publication number: 20210270296Abstract: A fluid leakage detection system has a detection space to which working oil leaked out through a rod seal is guided; the rod seal being configured to seal an annular gap between a piston rod and a cylinder head; a sensor unit configured to detect pressure in the detection space; and a controller configured to acquire detected result from the sensor unit, wherein the controller has: a calculation unit configured to calculate a pressure parameter representing a pressure fluctuation in the detection space; a determination unit configured to determine occurrence of leakage of the working oil based on the pressure parameter; and the pressure parameter includes an upper limit value and a lower limit value of the pressure fluctuation obtained from the detected result detected by the sensor unit within a predetermined detection period.Type: ApplicationFiled: April 23, 2019Publication date: September 2, 2021Applicant: KYB CorporationInventors: Yusuke TAKAHASHI, Takahiro IWAMOTO, Keitaro YOSHIDA, Takayoshi KIKUCHI
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Patent number: 11069377Abstract: Provided are a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support, in which the magnetic layer contains an oxide abrasive, an average particle diameter of the oxide abrasive obtained from a secondary ion image acquired by irradiating a surface of the magnetic layer with a focused ion beam is 0.04 ?m to 0.08 ?m, and an absolute value ?N of a difference between a refractive index Nxy measured with respect to an in-plane direction of the magnetic layer and a refractive index Nz measured with respect to a thickness direction of the magnetic layer is 0.25 to 0.40, and a magnetic recording and reproducing device including the magnetic tape.Type: GrantFiled: March 27, 2020Date of Patent: July 20, 2021Assignee: FUJIFILM CorporationInventors: Takahiro Iwamoto, Hidemasa Hosoda, Norihito Kasada, Takuto Kurokawa
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Publication number: 20200300277Abstract: A fluid leakage detection system includes: a measurement unit configured to detect leakage of working oil in a hydraulic cylinder; and a controller configured to acquire a measurement result from the measurement unit, wherein the controller diagnoses that a battery depletion has been caused in a battery in a case in which it is determined that a data from the measurement unit has not been acquired and it is determined that the battery of the measurement unit has been in a low-remaining-battery-level state, and the controller diagnoses that a communication abnormality has been caused in a first communication part of the measurement unit in a case in which it is determined that the data from the measurement unit has not been acquired and it is determined that the battery has not been in the low-remaining-battery-level state.Type: ApplicationFiled: August 5, 2019Publication date: September 24, 2020Applicant: KYB CorporationInventors: Takayoshi KIKUCHI, Keitaro YOSHIDA, Takahiro IWAMOTO
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Publication number: 20200227084Abstract: Provided are a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support, in which the magnetic layer contains an oxide abrasive, an average particle diameter of the oxide abrasive obtained from a secondary ion image acquired by irradiating a surface of the magnetic layer with a focused ion beam is 0.04 ?m to 0.08 ?m, and an absolute value ?N of a difference between a refractive index Nxy measured with respect to an in-plane direction of the magnetic layer and a refractive index Nz measured with respect to a thickness direction of the magnetic layer is 0.25 to 0.40, and a magnetic recording and reproducing device including the magnetic tape.Type: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Applicant: FUJIFILM CorporationInventors: Takahiro IWAMOTO, Hidemasa Hosoda, Norihito Kasada, Takuto Kurokawa
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Publication number: 20200227081Abstract: Provided are a magnetic tape comprising a magnetic layer containing a ferromagnetic powder and a binding agent on a non-magnetic support, in which the magnetic layer contains an oxide abrasive, an average particle diameter of the oxide abrasive obtained from a secondary ion image acquired by irradiating a surface of the magnetic layer with a focused ion beam is greater than 0.08 ?m and 0.14 ?m or smaller, and an absolute value ?N of a difference between a refractive index Nxy measured with respect to an in-plane direction of the magnetic layer and a refractive index Nz measured with respect to a thickness direction of the magnetic layer is 0.25 to 0.40, and a magnetic recording and reproducing device including the magnetic tape.Type: ApplicationFiled: March 27, 2020Publication date: July 16, 2020Applicant: FUJIFILM CorporationInventors: Hidemasa HOSODA, Takuto KUROKAWA, Norihito KASADA, Takahiro IWAMOTO
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Publication number: 20200126589Abstract: The magnetic tape includes a non-magnetic support; a non-magnetic layer including a non-magnetic powder and a binding agent on the non-magnetic support; and a magnetic layer including a ferromagnetic powder and a binding agent on the non-magnetic layer, in which a total thickness of the non-magnetic layer and the magnetic layer is equal to or smaller than 0.60 ?m, an isoelectric point of a surface zeta potential of the magnetic layer is equal to or greater than 5.5, the magnetic layer includes an oxide abrasive, and an average particle diameter of the oxide abrasive obtained from a secondary ion image obtained by irradiating the surface of the magnetic layer with a focused ion beam is 0.04 ?m to 0.08 ?m.Type: ApplicationFiled: October 21, 2019Publication date: April 23, 2020Applicant: FUJIFILM CorporationInventors: Takahiro IWAMOTO, Norihito Kasada
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Patent number: 10590626Abstract: To improve the precision of position of a fastener hole and a seating face for mounting a counterweight, a counterweight supporting member is comprised of a support plate erected and fixed at the rear end of a revolving frame and a supporting member attached to the support plate. A cylindrical bolt fastening boss is provided on the supporting member in a manner of rotational position adjustable to the supporting plate and in which a fastener hole is formed at an eccentric position.Type: GrantFiled: June 14, 2016Date of Patent: March 17, 2020Assignee: Caterpillar SARLInventors: Takahiro Iwamoto, Kentaro Nakayama, Takeshi Tsuneyoshi
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Patent number: 10544564Abstract: The present invention aims to improve the strength of the portion of the swing frame for attaching the swing motor apparatus while reducing cost. A bottom plate of a swing frame is divided into a center bottom plate segment to which the swing motor apparatus mounting portion is attached, a front bottom plate segment that is positioned to the front side of the center bottom plate segment and to which the center joint mounting portion is attached, and a rear bottom plate segment positioned to the rear side of the center bottom plate segment, wherein: the center, front, and rear bottom plate segments and are formed integrally by welding; and the plate thickness of the center bottom plate segment is thicker than the plate thickness of the front bottom plate segment and the rear bottom plate segment.Type: GrantFiled: May 12, 2017Date of Patent: January 28, 2020Assignee: Caterpillar SARLInventors: Takeshi Tsuneyoshi, Takahiro Iwamoto, Takeshi Nakamura, Akito Nakai, Kentaro Nakayama, Dharmesh Kumar, Koichi Andatsu
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Patent number: 10423192Abstract: It is an object of this invention to provide a display device capable of easily adjusting the height thereof without providing an extension and contraction mechanism. The display device (1) of this invention includes: a casing (3); and a display unit (5) to be installed for use onto the casing (3), the casing (3) and the display unit (5) being available to directly couple to each other. A coupling structure between the casing (3) and the display unit (5) is changeable from a state in which the casing (3) and the display unit (5) are directly coupled to each other to a state in which the casing (3) and the display unit (5) are coupled to each other with a pole (7) having a columnar shape and separable along a center axis thereof, which is mounted between the casing (3) and the display unit (5).Type: GrantFiled: October 4, 2012Date of Patent: September 24, 2019Assignee: NEC Platforms, Ltd.Inventors: Takahiro Iwamoto, Natsuki Hagiwara, Takashi Nakashima