Patents by Inventor Takahisa Hirasawa
Takahisa Hirasawa 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: 20200286678Abstract: A planar transformer includes a coil substrate including a flexible substrate and multiple coils formed on the flexible substrate. The coil substrate is formed to have coil parts and coilless parts such that the coil parts have the coils and that the coilless parts do not have the coils, and the coil substrate is folded such that at least one of the coilless parts is sandwiched between two of the coil parts.Type: ApplicationFiled: February 28, 2020Publication date: September 10, 2020Applicant: IBIDEN CO., LTD.Inventors: Haruhiko MORITA, Hitoshi MIWA, Shinobu KATO, Toshihiko YOKOMAKU, Hisashi KATO, Takahisa HIRASAWA, Tetsuya MURAKI, Takayuki FURUNO
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Publication number: 20200287452Abstract: A motor coil substrate includes a coil substrate including a flexible substrate and multiple coils formed on the flexible substrate such that the coils are extending from a first end toward a second end on the opposite side with respect to the first end. The flexible substrate includes inner peripheral and outer peripheral flexible substrates such that the coils include outer peripheral coils formed on the outer peripheral flexible substrate and inner peripheral coils formed on the inner peripheral flexible substrate, that a number of the outer peripheral coils and a number of the inner peripheral coils are L, that an m-th outer peripheral coil of the outer peripheral coils is positioned on a m-th inner peripheral coil of the inner peripheral coils, and that the m-th outer peripheral coil and the m-th inner peripheral coil are connected to each other in parallel, where L and m are natural numbers.Type: ApplicationFiled: February 28, 2020Publication date: September 10, 2020Applicant: IBIDEN CO., LTD.Inventors: Haruhiko MORITA, Hitoshi MIWA, Shinobu KATO, Toshihiko YOKOMAKU, Hisashi KATO, Takahisa HIRASAWA, Tetsuya MURAKI, Takayuki FURUNO
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Publication number: 20200161919Abstract: A coil substrate includes a flexible substrate, and a coil including a wiring and formed on the flexible substrate. The flexible substrate has a cut penetrating through the flexible substrate such that the cut is formed to extend along a portion of the coil.Type: ApplicationFiled: November 15, 2019Publication date: May 21, 2020Applicant: IBIDEN CO., LTD.Inventors: Haruhiko MORITA, Hitoshi Miwa, Shinobu Kato, Toshihiko Yokomaku, Hisashi Kato, Takahisa Hirasawa, Tetsuya Muraki, Takayuki Furuno
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Publication number: 20200075223Abstract: A planar transformer includes a flexible insulating substrate having a first surface and a second surface on the opposite side with respect to the first surface, and multiple coils formed side by side on the first surface and the second surface of the flexible insulating substrate such that each of the coils includes a spiral-shaped wiring. The flexible insulating substrate has bending portions formed such that the flexible insulating substrate is folded at the bending portions and stack the coils one another.Type: ApplicationFiled: August 29, 2019Publication date: March 5, 2020Applicant: IBIDEN CO., LTD.Inventors: Haruhiko MORITA, Hitoshi MIWA, Shinobu KATO, Toshihiko YOKOMAKU, Hisashi KATO, Takahisa HIRASAWA, Tetsuya MURAKI, Takayuki FURUNO
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Publication number: 20200076263Abstract: A motor coil substrate includes a flexible substrate, and multiple coils formed on the flexible substrate such that each of the coils has a spiral shape. The flexible substrate has multiple folding lines formed and the multiple coils positioned such that the flexible substrate is folded at the folding lines and wound around a magnet and that an m-th coil and an (m+1)-th coil of the coils partially overlap one another when folded at the folding lines.Type: ApplicationFiled: August 30, 2019Publication date: March 5, 2020Applicant: IBIDEN CO., LTD.Inventors: Haruhiko MORITA, Hitoshi MIWA, Shinobu KATO, Toshihiko YOKOMAKU, Hisashi KATO, Takahisa HIRASAWA, Tetsuya MURAKI, Takayuki FURUNO
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Publication number: 20200075224Abstract: A planar transfoinier includes a flexible insulating substrate having a pair of short sides, a pair of long sides, a first surface, and a second surface on an opposite side with respect to the first surface, multiple coils formed side by side on the first surface and second surface of the flexible insulating substrate such that each of the coils has a spiral-shaped wiring, and multiple terminals formed on the flexible insulating substrate and connected to the coils respectively such that the terminals are positioned in a center portion of the flexible insulating substrate formed close to a center of the long sides of the flexible insulating substrate. The flexible insulating substrate has multiple bending portions formed such that the flexible insulating substrate is folded at the bending portions and stacks the coils one another.Type: ApplicationFiled: August 29, 2019Publication date: March 5, 2020Applicant: IBIDEN CO., LTD.Inventors: Haruhiko MORITA, Hitoshi MIWA, Shinobu KATO, Toshihiko YOKOMAKU, Hisashi KATO, Takahisa HIRASAWA, Tetsuya MURAKI, Takayuki FURUNO
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Patent number: 10319892Abstract: A light-emitting element mounting substrate includes a substrate including insulating resin, a first conductor layer formed on a first surface of the substrate and having an element mounting portion, a second conductor layer formed on a second surface of the substrate on the opposite side of the first surface, metal blocks formed such that the metal blocks are penetrating through the first conductor layer, the substrate and the second conductor layer and positioned in the element mounting portion of the first conductor layer, and through-hole conductors formed adjacent to the metal blocks respectively such that the through-hole conductors electrically connect the first conductor layer and the second conductor layer and that a diameter of each metal block is larger than a diameter of each through-hole conductor.Type: GrantFiled: February 12, 2018Date of Patent: June 11, 2019Assignee: IBIDEN CO., LTD.Inventors: Takahisa Hirasawa, Kiyotaka Tsukada
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Patent number: 10297937Abstract: A composite flexible printed wiring board includes a first flexible printed wiring board having an insulating layer, conductor layers and a first metal block fitted in a hole penetrating through the conductor layers and insulating layer, and a second flexible printed wiring board having an insulating layer, conductor layers and a second metal block fitted in a hole penetrating through the conductor layers and insulating layer. The first flexible printed wiring board and the second flexible printed wiring board have a welded portion formed by welding the first metal block and the second metal block and joining the first metal block and the second metal block such that the welded portion is joining the first flexible printed wiring board and the second flexible printed wiring board.Type: GrantFiled: July 31, 2018Date of Patent: May 21, 2019Assignee: IBIDEN CO., LTD.Inventors: Takahisa Hirasawa, Takayuki Furuno
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Publication number: 20190036289Abstract: A flexible printed wiring board includes a flexible insulating layer, a conductor layer formed on a surface of the flexible insulating layer, and a metal body having a columnar shape and fitted in a hole penetrating through the flexible insulating layer and the conductor layer such that the metal body is formed of a welding base material and has an end portion formed to be joined to an electrode of a battery by welding. The welding base material of the metal body of the flexible printed wiring board includes the same material as the electrode of the battery.Type: ApplicationFiled: July 31, 2018Publication date: January 31, 2019Applicant: IBIDEN CO., LTD.Inventors: Takahisa HIRASAWA, Takayuki Furuno
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Publication number: 20190036247Abstract: A composite flexible printed wiring board includes a first flexible printed wiring board having an insulating layer, conductor layers and a first metal block fitted in a hole penetrating through the conductor layers and insulating layer, and a second flexible printed wiring board having an insulating layer, conductor layers and a second metal block fitted in a hole penetrating through the conductor layers and insulating layer. The first flexible printed wiring board and the second flexible printed wiring board have a welded portion formed by welding the first metal block and the second metal block and joining the first metal block and the second metal block such that the welded portion is joining the first flexible printed wiring board and the second flexible printed wiring board.Type: ApplicationFiled: July 31, 2018Publication date: January 31, 2019Applicant: IBIDEN CO., LTD.Inventors: Takahisa Hirasawa, Takayuki Furuno
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Publication number: 20180233644Abstract: A light-emitting element mounting substrate includes a substrate including insulating resin, a first conductor layer formed on a first surface of the substrate and having an element mounting portion, a second conductor layer formed on a second surface of the substrate on the opposite side of the first surface, metal blocks formed such that the metal blocks are penetrating through the first conductor layer, the substrate and the second conductor layer and positioned in the element mounting portion of the first conductor layer, and through-hole conductors formed adjacent to the metal blocks respectively such that the through-hole conductors electrically connect the first conductor layer and the second conductor layer and that a diameter of each metal block is larger than a diameter of each through-hole conductor.Type: ApplicationFiled: February 12, 2018Publication date: August 16, 2018Applicant: IBIDEN CO., LTD.Inventors: Takahisa Hirasawa, Kiyotaka Tsukada
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Publication number: 20170374742Abstract: A composite wiring board includes a first wiring board including a first insulating layer, a first conductor layer formed on the first insulating layer, and metal elements penetrating the first insulating layer and the first conductor layer such that the metal elements are electrically connected to each other by the first conductor layer, and a second wiring board including a second insulating layer and a second conductor layer forming on the second insulating layer and including metal connection terminals such that the metal connection terminals are corresponding to and directly bonded to the metal elements of the first wiring board, respectively.Type: ApplicationFiled: June 22, 2017Publication date: December 28, 2017Applicant: IBIDEN CO., LTD.Inventors: Takahisa HIRASAWA, Takayuki FURUNO, Kiyotaka TSUKADA
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Publication number: 20170223816Abstract: A flexible printed wiring board includes a flexible insulating layer, a conductor layer formed on a surface of the flexible insulating layer, and a metal block including a welding base material and positioned such that the metal block is penetrating through the flexible insulating layer and the conductor layer.Type: ApplicationFiled: February 1, 2017Publication date: August 3, 2017Applicant: IBIDEN CO., LTD.Inventors: Takahisa HIRASAWA, Kiyotaka TSUKADA
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Publication number: 20170222112Abstract: A light-emitting element mounting substrate includes a substrate including an insulating resin material, a first conductor layer formed on a first main surface of the substrate, a second conductor layer formed on a second main surface of the substrate on the opposite side to the first main surface, metal blocks positioned such that the metal blocks are penetrating through the first conductor layer, substrate and second conductor layer, and through hole conductors formed to extend adjacent to the metal blocks respectively such that the through hole conductors electrically connect the first conductor layer and the second conductor layer. The first conductor layer has an element mounting portion formed such that a light-emitting element is mounted to a first conductor layer side on the element mounting portion, and the metal blocks are positioned such that the metal blocks have end portions in the element mounting portion of the first conductor layer.Type: ApplicationFiled: January 26, 2017Publication date: August 3, 2017Applicant: IBIDEN CO., LTD.Inventors: Takahisa HIRASAWA, Kiyotaka TSUKADA
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Patent number: 8173004Abstract: A pulse current from a pulse current supply side is fed to a middle part of an anode holding body to which anodes are connected; both end portions of a cathode holding body, to which cathodes are connected, are connected to a negative pole on the pulse power source side; and inductances of wiring between adjacent anodes and inductances of wiring between adjacent cathodes are set at a ratio of 1:2:3:4 in a direction of spacing from a connection to the pulse power source side. Pulse currents are equally fed to each work and it can be ensured that chromium plating treatment of each work is made equal.Type: GrantFiled: March 16, 2010Date of Patent: May 8, 2012Assignee: Hitachi, Ltd.Inventors: Takahisa Hirasawa, Hiroshi Yoshikura, Junichi Ikeda, Tsuyoshi Kawase, Yuichi Kobayashi
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Patent number: 7980831Abstract: An oscillating type piston is connected to an output shaft of an electric motor through a crankshaft. The piston is provided with a lip ring that slidingly contacts a cylinder. The motor is rotated forward and reversely by using a control circuit. Thus, different regions of the piston are subjected to a load during forward rotation of the motor and during reverse rotation thereof. Accordingly, wear of the lip ring can be distributed to different regions thereof.Type: GrantFiled: May 29, 2007Date of Patent: July 19, 2011Assignee: Hitachi, Ltd.Inventors: Shingo Miyake, Yoshie Tsujimi, Takahisa Hirasawa
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Publication number: 20100213072Abstract: A pulse current from a pulse current supply side is fed to a middle part of an anode holding body to which anodes are connected; both end portions of a cathode holding body, to which cathodes are connected, are connected to a negative pole on the pulse power source side; and inductances of wiring between adjacent anodes and inductances of wiring between adjacent cathodes are set at a ratio of 1:2:3:4 in a direction of spacing from a connection to the pulse power source side. Pulse currents are equally fed to each work and it can be ensured that chromium plating treatment of each work is made equal.Type: ApplicationFiled: March 16, 2010Publication date: August 26, 2010Inventors: Takahisa HIRASAWA, Hiroshi YOSHIKURA, Junichi IKEDA, Tsuyoshi KAWASE, Yuichi KOBAYASHI
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Patent number: 7722331Abstract: An air-compressing apparatus has four compressors individually supplying compressed air to a tank having a pressure sensor. The pressure sensor is connected to control circuits of the compressors. The control circuits compute times needed for the tank pressure to reach minimum and maximum pressures, respectively, of the tank by using the detected tank pressure and also using a tank pressure change value. The computed time values correspond to the consumption of compressed air. Thus, the control circuits can control the number of compressors to be operated according to the consumption of compressed air.Type: GrantFiled: September 27, 2006Date of Patent: May 25, 2010Assignee: Hitachi, Ltd.Inventors: Takahisa Hirasawa, Kazumasa Kawasaki, Manabu Shindo, Tomohiro Nakamura, Hiroshi Chikuma
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Publication number: 20070280833Abstract: An oscillating type piston is connected to an output shaft of an electric motor through a crankshaft. The piston is provided with a lip ring that slidingly contacts a cylinder. The motor is rotated forward and reversely by using a control circuit. Thus, different regions of the piston are subjected to a load during forward rotation of the motor and during reverse rotation thereof. Accordingly, wear of the lip ring can be distributed to different regions thereof.Type: ApplicationFiled: May 29, 2007Publication date: December 6, 2007Inventors: Shingo Miyake, Yoshie Tsujimi, Takahisa Hirasawa
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Publication number: 20070077151Abstract: An air-compressing apparatus has four compressors individually supplying compressed air to a tank having a pressure sensor. The pressure sensor is connected to control circuits of the compressors. The control circuits compute times needed for the tank pressure to reach minimum and maximum pressures, respectively, of the tank by using the detected tank pressure and also using a tank pressure change value. The computed time values correspond to the consumption of compressed air. Thus, the control circuits can control the number of compressors to be operated according to the consumption of compressed air.Type: ApplicationFiled: September 27, 2006Publication date: April 5, 2007Inventors: Takahisa Hirasawa, Kazumasa Kawasaki, Manabu Shindo, Tomohiro Nakamura, Hiroshi Chikuma