Patents Assigned to Totoku Electric Co., Ltd.
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Patent number: 12112861Abstract: To provide a coaxial cable with a favorable appearance and excellent processability. The above-described problem is solved by a coaxial cable comprising a center conductor (11), an insulator (12) provided on an outer periphery of the center conductor (11), an external conductor (13, 14) provided on an outer periphery of the insulator (12), and an outer coated body (15, 16) covering the external conductor (13, 14). The external conductor (13, 14) is constituted by a lateral winding shield (13) provided with metal fine wires laterally wound on the outer periphery of the insulator (12), and a metal resin tape (14) wound in a layer on the lateral winding shield (13) with a metal layer side being on an inside. The outer coated body (15, 16) is constituted by a resin tape (15) wound on the metal resin tape (14), and an extruded sheath (16) covering the resin tape (15). Given T1 as a thickness of the metal resin tape (14) and T2 as a thickness of the resin tape (15), T2/T1 is within a range from 0.180 to 0.800.Type: GrantFiled: March 19, 2021Date of Patent: October 8, 2024Assignee: TOTOKU ELECTRIC CO., LTD.Inventors: Takeyasu Nakayama, Hiroto Imamura, Satoshi Yamazaki
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Patent number: 12107354Abstract: To provide a coaxial flat cable that can achieve stable high-frequency transmission characteristics as a structure by which stress is not applied to a specific coaxial cable, even due to handling of the coaxial flat cable or the like. The above-described problem is solved by a coaxial flat cable (20) comprising a plurality of coaxial cables (10) disposed side by side in a width direction (X), and a resin tape (11) integrating at least terminal parts (21) of these coaxial cables (10) from one surface or both surfaces, each of the plurality of coaxial cables (10) being connected by soldering to a substrate (30) or a connector. The resin tape (11) positioned at the terminal parts (21) is configured to be provided with a fixed part (21a), to be fixed to the substrate or the connector, at both end portions in the width direction (X).Type: GrantFiled: December 14, 2020Date of Patent: October 1, 2024Assignee: TOTOKU ELECTRIC CO., LTD.Inventor: Nobuaki Nakayama
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Patent number: 11728069Abstract: A coaxial cable 10 includes a hollow-core-body 1 having an integral structure of thermoplastic resin including an inner annular portion 2 that insulation-coats an inner conductor 12, a plurality of rib portions 3 that radially extend from the inner annular portion 2, and an outer annular portion 4 that is connected to outer ends of the rib portions 3; three or more gap portions 5 surrounded by the inner annular portion 2, the rib portions 3, and the outer annular portion 4; and outer side reinforcing portions 7 being formed on both sides of an outer end in the rib portion 3, in which a size ratio of a minimum value W1 of a rib width in the rib portion 3 and a maximum value W2 of the rib width in the rib portion 3 is within a range of 1:1.6 to 1:3.0.Type: GrantFiled: May 16, 2022Date of Patent: August 15, 2023Assignee: TOTOKU ELECTRIC CO., LTD.Inventors: Takeyasu Nakayama, Hiroto Imamura, Satoshi Yamazaki
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Publication number: 20230154652Abstract: To provide a coaxial cable with a favorable appearance and excellent processability. The above-described problem is solved by a coaxial cable comprising a center conductor (11), an insulator (12) provided on an outer periphery of the center conductor (11), an external conductor (13, 14) provided on an outer periphery of the insulator (12), and an outer coated body (15, 16) covering the external conductor (13, 14). The external conductor (13, 14) is constituted by a lateral winding shield (13) provided with metal fine wires laterally wound on the outer periphery of the insulator (12), and a metal resin tape (14) wound in a layer on the lateral winding shield (13) with a metal layer side being on an inside. The outer coated body (15, 16) is constituted by a resin tape (15) wound on the metal resin tape (14), and an extruded sheath (16) covering the resin tape (15). Given T1 as a thickness of the metal resin tape (14) and T2 as a thickness of the resin tape (15), T2/T1 is within a range from 0.180 to 0.800.Type: ApplicationFiled: March 19, 2021Publication date: May 18, 2023Applicant: TOTOKU ELECTRIC CO., LTD.Inventors: Takeyasu NAKAYAMA, Hiroto IMAMURA, Satoshi YAMAZAKI
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Publication number: 20230099218Abstract: To provide an insulated wire that can increase in a partial discharge starting voltage, prevent deterioration of an insulator, and not cause worsening of an occupancy ratio, a coil that uses the insulated wire, a variable-thickness insulating tape used in manufacture of the insulated wire, and a manufacturing method of the same. The above-described problem is solved by an insulated wire (10) for a coil, comprising a conductor (1), and insulating coatings (2, 3) provided on an outer periphery of the conductor (1). The insulated wire (10) is constituted by the thick insulating coating (3) for an area where voltage increases and partial discharge readily occurs, and the thin insulating coating (2) for an area where the voltage does not increase and partial discharge does not readily occur, when the coil is wound. The thick insulating coating (3) and the thin insulating coating (2) are repeatedly provided at desired intervals.Type: ApplicationFiled: December 24, 2020Publication date: March 30, 2023Applicant: TOTOKU ELECTRIC CO., LTD.Inventors: Tadashi YAMAGUCHI, Shigeo HAYASHI
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Patent number: 11456087Abstract: To provide a lead wire for narrow space insertion that is easily inserted into an elongated small-diameter pipe or small-diameter tube such as an ultrasonic probe or an electrode catheter. The above-described problem is solved by a lead wire for narrow space insertion including a copper alloy wire having a conductor diameter within a range of 0.015 to 0.18 mm, and an insulating layer provided to an outer periphery of the copper alloy wire. A friction coefficient of an outermost surface layer of the insulating layer is within a range of 0.05 to 0.3, a tensile strength of the lead wire is within a range of 700 to 1,500 MPa, and a conductivity of the copper alloy wire is within a range of 60 to 90% IACS.Type: GrantFiled: March 27, 2020Date of Patent: September 27, 2022Assignee: TOTOKU ELECTRIC CO., LTD.Inventors: Kenji Saka, Hikaru Yamakoshi, Takashi Miyazawa
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Patent number: 11052442Abstract: To provide a copper-coated magnesium wire which meets the demand for a lightweight coil wire material, and a method for manufacturing the same. The above-described problem is solved by a copper-coated magnesium wire (10) comprising a core material (1) made of magnesium, and a copper coating layer (2) made of copper or a copper alloy provided on a surface of the core material (1). In the copper-coated magnesium wire (10), a wire drawing mark is present on a surface of the copper coating layer (2), and the diameter is preferably within a range of 0.03 to 0.08 mm, inclusive. Further, a thickness of the copper coating layer (2) is preferably within a range of 5 to 30%, inclusive, as a ratio of the overall cross-sectional area. An insulating coating layer (3) may be provided on an outer circumferential side of the copper coating layer (2).Type: GrantFiled: March 22, 2017Date of Patent: July 6, 2021Assignee: TOTOKU ELECTRIC CO., LTDInventors: Hiroshi Kitazawa, Takuya Sakita
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Publication number: 20200312480Abstract: To provide a lead wire for narrow space insertion that is easily inserted into an elongated small-diameter pipe or small-diameter tube such as an ultrasonic probe or an electrode catheter. The above-described problem is solved by a lead wire for narrow space insertion including a copper alloy wire having a conductor diameter within a range of 0.015 to 0.18 mm, and an insulating layer provided to an outer periphery of the copper alloy wire. A friction coefficient of an outermost surface layer of the insulating layer is within a range of 0.05 to 0.3, a tensile strength of the lead wire is within a range of 700 to 1,500 MPa, and a conductivity of the copper alloy wire is within a range of 60 to 90% IACS.Type: ApplicationFiled: March 27, 2020Publication date: October 1, 2020Applicant: TOTOKU ELECTRIC CO., LTD.Inventors: Kenji SAKA, Hikaru YAMAKOSHI, Takashi MIYAZAWA
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Patent number: 10591135Abstract: A frame has an outer frame made of microcellular foam resin, and two inner frames made of the microcellular foam resin. The two inner frames are arranged together inside the outer frame. Both of the inner frames and the outer frame include openings provided at respective upper portions and recess portions formed downwardly from the openings, respectively. An LED light source, which is arranged inside a light guide space, emits light with a light emitting face thereof directing toward the light guide space. Accordingly, light from the LED light source is uniformly emitted from a light extraction portion. Also, an LED light source arranged inside a light guide space emits light directing toward the light guide space. Accordingly, light from the LED light source is uniformly emitted from a light extraction portion.Type: GrantFiled: March 16, 2018Date of Patent: March 17, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., TOTOKU ELECTRIC CO., LTD.Inventors: Syouta Inoue, Tetsuji Kubota, Syunji Yamamoto, Hisashi Koaizawa, Tomio Kaise
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Publication number: 20190283097Abstract: To provide a copper-coated magnesium wire which meets the demand for a lightweight coil wire material, and a method for manufacturing the same. The above-described problem is solved by a copper-coated magnesium wire (10) comprising a core material (1) made of magnesium, and a copper coating layer (2) made of copper or a copper alloy provided on a surface of the core material (1). In the copper-coated magnesium wire (10), a wire drawing mark is present on a surface of the copper coating layer (2), and the diameter is preferably within a range of 0.03 to 0.08 mm, inclusive. Further, a thickness of the copper coating layer (2) is preferably within a range of 5 to 30%, inclusive, as a ratio of the overall cross-sectional area. An insulating coating layer (3) may be provided on an outer circumferential side of the copper coating layer (2).Type: ApplicationFiled: March 22, 2017Publication date: September 19, 2019Applicant: TOTOKU ELECTRIC CO., LTD.Inventors: Hiroshi KITAZAWA, Takuya SAKITA
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Patent number: 9318238Abstract: A hollow core body for signal transmission cable comprises an inner conductor that employs a compressed bunched conductor formed by bunching and compressing plural strands such that a cross-section of the compressed bunched conductor is substantially circular, and a hollow insulating core that includes an inner annular member, rib members, an outer annular member, and hollow members. Accordingly, as almost no recesses are produced on the circumferential surface of the compressed bunched conductor, weakening of the mechanical strength due to presence of recesses on the circumferential surface of the inner conductor can be suppressed.Type: GrantFiled: October 4, 2011Date of Patent: April 19, 2016Assignee: Totoku Electric Co., Ltd.Inventors: Tadashi Yamaguchi, Shigehiro Sasai
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Patent number: 9301342Abstract: A heater wire is obtained by twisting together a plurality of heating element wires in which a rectangular wire is spirally wound around a core wire, and forming an insulating sheath on an outer peripheral surface of the twisted heating element wires. The current carrying capacity can be increased by increasing the number of the heating element wires and there is no need of increasing the cross-sectional area of each of the rectangular wires. Therefore, a reduction in the bending capacity due to an increase in the cross-sectional area of the rectangular wires can be avoided, and the bending capacity can be improved significantly.Type: GrantFiled: May 16, 2012Date of Patent: March 29, 2016Assignee: Totoku Electric Co., Ltd.Inventors: Shohei Miyahara, Yuichi Nakajo, Shigeo Hayashi, Shinji Yoda
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Publication number: 20140299349Abstract: A high-speed signal transmission cable includes a coaxial wire assembly, a shield layer arranged around an outer periphery of the coaxial wire assembly, and a sheath, arranged around as the outermost layer. Each coaxial wire includes an inner conductor, a hollow core member, and an outer conductor. The outer conductor is formed by longitudinally adding a metal foil or a plastic tape having a metal layer on an outer periphery of the hollow core member. The high-speed signal transmission cable can suitably transmit a high-speed digital signal of 10 Gbps and above, and its characteristics do not degrade easily even if it is used on multiple cores twist structure or bending. Therefore, the high-speed signal transmission cable can be used in environments that require high-speed transmission of digital signals.Type: ApplicationFiled: November 9, 2012Publication date: October 9, 2014Applicant: TOTOKU ELECTRIC CO., LTD.Inventors: Tadashi Yamaguchi, Shigehiro Sasai, Makoto Miyashita, Akihiro Sakaguchi, Shigeo Hayashi
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Patent number: 8259034Abstract: An original monochrome image recorded with an FPD (flat panel detector) which comprises an array, m rows and n columns, of pixels is reduced and converted into a display image which comprises an array, q rows and (3*n*q/m) columns, of pixels before the display image is transferred to a monochrome liquid crystal display equipped with a monochrome LCD which comprises an array, q rows and P columns, of pixels, where m, n, q, and P are natural numbers and m?n, q<P, n/m<P/q, and m>q are given. The monochrome liquid crystal display drives the three sub pixels of each pixel independently aligned along the row of the monochrome LCD to display the display image of the pixels in q rows and (3*n*q/m) columns.Type: GrantFiled: August 30, 2006Date of Patent: September 4, 2012Assignees: Totoku Electric Co., Ltd., National University Corporation Nagoya UniversityInventors: Katuhiro Ichikawa, Yoshie Kodera, Shigeo Hayashi, Tatumi Naganuma
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Patent number: 7801186Abstract: A spatial coupling provided between an amplified-light waveguide and an output-light waveguide includes a wavelength selecting element that selectively transmits a light having a desired wavelength band out of a spontaneous emission light generated in the amplified-light waveguide and a lens unit that couples the spontaneous emission light to the wavelength selecting unit. An input-side light reflecting unit provided between a semiconductor pumping laser and the amplified-light waveguide and an output-side light reflecting unit formed on an output side of the spatial coupling unit form a laser resonator.Type: GrantFiled: December 7, 2007Date of Patent: September 21, 2010Assignees: The Furukawa Electric Co., Ltd., Totoku Electric Co., Ltd.Inventors: Sugio Wako, Atsushi Koyama, Xiongfei Zhang, Hiroshi Matsuura, Satoru Abe, Takeshi Takagi
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Publication number: 20100219952Abstract: An operating unit is fixedly mounted to a property as being accompanied with an active type RF tag unit. When the property to be retrieved is demanded by a user using an upper level unit, its demand is transferred from the upper level unit to an installation type transceiver unit, from the installation type transceiver unit to the active type RF tag unit, and from the active type RF tag unit to the operating unit which then directs the alarming means to emit at least either lights or sounds. This allows the user to recognize the location of the property in a warehouse. When the property is moved, its assigned active type RF tag unit is detached from the operating unit.Type: ApplicationFiled: March 10, 2006Publication date: September 2, 2010Applicant: Totoku Electric Co., Ltd.Inventor: Hideto Okamura
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Publication number: 20100045580Abstract: An original monochrome image recorded with an FPD (flat panel detector) which comprises an array, m rows and n columns, of pixels is reduced and converted into a display image which comprises an array, q rows and (3*n*q/m) columns, of pixels before the display image is transferred to a monochrome liquid crystal display equipped with a monochrome LCD which comprises an array, q rows and P columns, of pixels, where m, n, q, and P are natural numbers and m?n, q<P, n/m<P/q, and m>q are given. The monochrome liquid crystal display drives the three sub pixels of each pixel independently aligned along the row of the monochrome LCD to display the display image of the pixels in q rows and (3*n*q/m) columns.Type: ApplicationFiled: August 30, 2006Publication date: February 25, 2010Applicants: Totoku Electric Co., Ltd., National University Corporation Nagoya UniversityInventors: Katuhiro Ichikawa, Yoshie Kodera, Shigeo Hayashi, Tatumi Naganuma
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Publication number: 20090231106Abstract: A tag apparatus (10) transmits its ID periodically over the wireless at the first frequency. When receiving the ID, a transceiver apparatus (20) notifies an upper hierarchy apparatus (H) of the reception of the ID. The transceiver apparatus (20) when receiving a command from the higher hierarchy apparatus (H), transmits the command over the wireless at the second frequency. Upon receiving the command, the tag apparatus (10) conducts a processing action of a peripheral apparatus (4) determined by the command and transmits a user ID over the wireless at the second frequency. When receiving the user ID, the transceiver apparatus (20) notifies the upper hierarchy apparatus (H) of the reception of the user ID.Type: ApplicationFiled: January 27, 2006Publication date: September 17, 2009Applicant: TOTOKU ELECTRIC CO., LTD.Inventor: Hideto Okamura
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Publication number: 20090067188Abstract: A first optical waveguide guides a pumping light emitted from a semiconductor laser. A second optical waveguide absorbs the pumping light and emits a spontaneous emission light having a wavelength longer than that of the pumping light. A third optical waveguide guides a light output from the second optical waveguide to outside. A wavelength selecting element is provided between the second optical waveguide and the third optical waveguide, across which a resonator is formed between the semiconductor laser side and an output side to outside. A wavelength of a laser light emitted from the resonator is set by controlling length of the second optical waveguide.Type: ApplicationFiled: September 30, 2008Publication date: March 12, 2009Applicants: THE FURUKAWA ELECTRIC CO., LTD., TOTOKU ELECTRIC CO., LTD.Inventors: Sugio Wako, Atsushi Koyama, Hiroshi Matsuura, Takeshi Takagi, Satoru Abe, Akira Fujisaki
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Patent number: 7483568Abstract: A monochromatic image of which the number of gradation levels (for example, 1024 levels) is greater than that (for example, 256) of a monochromatic image viably handled by an operating system (OS) (13) is converted into a color image which is then received by the OS (13). The color image to be handled by the OS (13) is embraced by the number of available colors (for example, 16,777,216) and can thus be released out directly. The color image released from the OS (13) is then converted into a monochromatic image of which the number of gradation levels (for example, 1021 or 1024) is greater than that (for example, 256) of a monochromatic image viably handled by the OS (13) before displayed. Accordingly, the monochromatic image can be displayed at multiple gradation levels which exceed the gradation limit of any conventional operating system without drastically modifying the hardware or software.Type: GrantFiled: October 5, 2005Date of Patent: January 27, 2009Assignee: Totoku Electric Co., Ltd.Inventors: Shigeo Hayashi, Kazuaki Kiuchi, Tatumi Naganuma