Patents by Inventor Fumiaki Sato
Fumiaki Sato 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: 10914906Abstract: An optical fiber cable having a slot core which includes a plurality of ribs formed along a cable longitudinal direction and in which slot grooves for housing optical fibers are formed between the ribs. The optical fiber cable includes: subunits each of which is formed by bundling a plurality of intermittent-connection-type optical fiber ribbons in which a connection part where adjacent optical fibers are connected to each other and a non-connection part where adjacent optical fibers are not connected to each other are intermittently provided in the longitudinal direction among some or all of optical fibers; and a thin-skin-shaped tube having Young's modulus lower than Young's modulus of a material forming the slot core. The subunits are housed in the slot grooves, and among the subunits in the slot grooves, at least a subunit located at an outer peripheral part of the slot grooves is covered with the tube.Type: GrantFiled: January 17, 2019Date of Patent: February 9, 2021Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki Sato, Kenta Tsuchiya, Kuushin Ryan
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Patent number: 10896843Abstract: A wafer holding device includes a wafer chuck that includes a wafer holding surface coming into contact with a wafer to be held and a plurality of attraction regions provided on the wafer holding surface, and a controller configured to independently control an attraction force of an at least one of the plurality of attraction regions. In a case where fixing of the wafer is released, the controller establishes a temporarily fixing state in which the attraction force of the at least one of the plurality of attraction regions is smaller than an attraction force in fixing the wafer, and thereafter, the controller sets attraction forces of all of the plurality of attraction regions to be smaller than the attraction force in fixing the wafer.Type: GrantFiled: March 23, 2018Date of Patent: January 19, 2021Assignee: SUMITOMO HEAVY INDUSTRIES ION TECHNOLOGY CO., LTD.Inventors: Fumiaki Sato, Suguru Hirokawa, Masamitsu Shinozuka
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Publication number: 20200409006Abstract: Provided is a manufacturing method of an optical fiber ribbon for manufacturing an intermittent-connection-type optical fiber ribbon including a connection part and a non-connection part. The manufacturing method includes: a release agent applying process of intermittently applying a release agent for preventing optical fibers from being bonded to each other with a connection resin in a longitudinal direction of the optical fibers in a state where the optical fibers are arranged in parallel; and a connection resin applying process of allowing the optical fibers in the state of being arranged in parallel to pass through a die for applying the connection resin around the optical fibers after the release agent applying process, and of curing the connection resin.Type: ApplicationFiled: January 17, 2019Publication date: December 31, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki SATO, Shigeru SUEMORI, Hiroki ISHIKAWA, Masahiko ISHIKAWA, Fumikazu YOSHIZAWA
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Publication number: 20200409005Abstract: An optical fiber cable having a slot core which includes a plurality of ribs formed along a cable longitudinal direction and in which slot grooves for housing optical fibers are formed between the ribs. The optical fiber cable includes: subunits each of which is formed by bundling a plurality of intermittent-connection-type optical fiber ribbons in which a connection part where adjacent optical fibers are connected to each other and a non-connection part where adjacent optical fibers are not connected to each other are intermittently provided in the longitudinal direction among some or all of optical fibers; and a thin-skin-shaped tube having Young's modulus lower than Young's modulus of a material forming the slot core. The subunits are housed in the slot grooves, and among the subunits in the slot grooves, at least a subunit located at an outer peripheral part of the slot grooves is covered with the tube.Type: ApplicationFiled: January 17, 2019Publication date: December 31, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki SATO, Kenta TSUCHIYA, Kuushin RYAN
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Patent number: 10857871Abstract: A vehicle rear structure prevents early deterioration of fastening portions on side members of a battery pack having a large mass caused by vertical vibrations during travelling of a vehicle. The vehicle rear structure includes a pair of side members disposed on right and left sides of the vehicle in a width direction of the vehicle and extending in a front-rear direction of the vehicle, and a battery pack whose bottom surface side is fastened to the side members. The vehicle rear structure also includes an upper back skeletal member extending in the width direction of the vehicle above the battery pack and fixed to the body of the vehicle, in which an upper surface side of the battery pack is fixed to the upper back skeletal member.Type: GrantFiled: November 6, 2018Date of Patent: December 8, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Fumiaki Sato
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Patent number: 10845556Abstract: An optical fiber cable includes optical fiber ribbons, a slot rod and a cable jacket. The slot rod has slot grooves in which the optical fiber ribbons are housed. The cable jacket covers an outside of the slot rod. The optical fiber ribbons have, in a state in which optical fibers having an outer diameter of 0.22 mm or less are arranged in parallel, connecting portions at which adjacent ones of the optical fibers are connected to one another and non-connecting portions at which adjacent ones of the optical fibers are not connected to one another, which are provided intermittently in a longitudinal direction. A density of core number of the optical fibers included in the optical fiber cable is 4.8 cores/mm2 or more in a cross section of the optical fiber cable.Type: GrantFiled: August 8, 2017Date of Patent: November 24, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki Sato, Taro Fujita, Nayu Yanagawa, Yoshiaki Nagao, Nobuyuki Suzuki
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Patent number: 10809694Abstract: The present invention is provided with: a servo motor; a servo driver which supplies a driving current to the servo motor and drives the servo motor; and an information processing device which transmits, to the servo driver, an operation command signal of the servo motor, wherein a movement range limiting device is further provided, which executes, on the basis of the operation command signal from the information processing device, automatic tuning that adjusts a gain in a servo motor control, and which prevents, in the automatic tuning, the servo motor from moving beyond a permissible range by returning the position of the servo motor to a prescribed start position.Type: GrantFiled: March 6, 2018Date of Patent: October 20, 2020Assignee: OMRON CorporationInventors: Fumiaki Sato, Daisuke Tamashima
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Publication number: 20200292772Abstract: Provided is a polyethylene resin for use in a spacer for an optical fiber cable, the polyethylene resin having a density of 0.952 g/cm3 or more, containing a polyethylene having a molecular weight of 10,000 or less in a weight fraction of 22% or more, and containing a polyethylene having a molecular weight of 300,000 or more in a weight fraction of 12% or more.Type: ApplicationFiled: October 4, 2017Publication date: September 17, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Ryoei OKA, Fumiaki SATO, Kentaro TAKEDA, Takao HIRAMA, Taro FUJITA, Ken TAKAHASHI
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Publication number: 20200225432Abstract: An optical fiber cable includes: optical fiber units obtained by collecting a plurality of optical fiber ribbons in which a plurality of optical fibers are arranged in parallel; and a slot rod including a plurality of slot grooves formed in a spiral shape in order to store the optical fiber units. The optical fiber units are stranded in a longitudinal direction of the optical fiber cable in a state in which the optical fiber ribbons are not twisted, and the optical fiber units are stored in the longitudinal direction of the optical fiber cable in a state of being untwisted stranding in the slot grooves.Type: ApplicationFiled: September 20, 2018Publication date: July 16, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Hiroki ISHIKAWA, Fumiaki SATO, Ryoei OKA, Yuki KAWAGUCHI, Sotaro IDA
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Publication number: 20200218021Abstract: A slot type optical cable includes: an optical fiber; a slot rod that includes a plurality of ribs forming a groove in which the optical fiber is accommodatable; and a cable jacket that is provided around the slot rod.Type: ApplicationFiled: June 13, 2018Publication date: July 9, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Keisuke OKADA, Fumiaki SATO, Yoshiaki NAGAO
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Publication number: 20200183111Abstract: An optical fiber cable includes optical fiber ribbons, a slot rod and a cable jacket. The slot rod has slot grooves in which the optical fiber ribbons are housed. The cable jacket covers an outside of the slot rod. The optical fiber ribbons have, in a state in which optical fibers having an outer diameter of 0.22 mm or less are arranged in parallel, connecting portions at which adjacent ones of the optical fibers are connected to one another and non-connecting portions at which adjacent ones of the optical fibers are not connected to one another, which are provided intermittently in a longitudinal direction. A density of core number of the optical fibers included in the optical fiber cable is 4.8 cores/mm2 or more in a cross section of the optical fiber cable.Type: ApplicationFiled: August 8, 2017Publication date: June 11, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki SATO, Taro FUJITA, Nayu YANAGAWA, Yoshiaki NAGAO, Nobuyuki SUZUKI
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Publication number: 20200150368Abstract: An optical fiber ribbon includes N pieces of optical fibers in a state of being disposed in parallel. At least some parts of the N pieces of optical fibers contact each other and are connected to each other by a resin; an outer diameter of the optical fiber is equal to or larger than 0.135 mm and equal to or smaller than 0.180 mm; a connection part connected by the resin or another resin and a non-connection part not connected by the resin or another resin are intermittently provided in a longitudinal direction between intermittently connected core wires of an optical fiber disposed at the Mth and an optical fiber disposed at the (M+1)th among the N pieces of optical fibers; the N is a multiple of 12; and the M is a multiple of 4.Type: ApplicationFiled: July 23, 2018Publication date: May 14, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki SATO, Hiroki ISHIKAWA
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Patent number: 10598888Abstract: There is provided an intermittent connection type optical fiber ribbon in which at least a part of a plurality of optical fibers that are arranged to be in parallel come into contact with each other, and between a part or the entirety of the optical fibers, a connection portion at which the adjacent optical fibers are connected to each other with an adhesive resin, and a non-connection portion at which the adjacent optical fibers are not connected to each other with the adhesive resin, are intermittently provided in the longitudinal direction, in which an outer diameter dimension of the optical fiber is equal to or less than 0.22 mm, and an inter-center distance of the adjacent optical fibers is 0.20±0.02 mm, and in which at least a part of the outer periphery of the optical fiber has no adhesive resin attached thereto.Type: GrantFiled: February 17, 2017Date of Patent: March 24, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki Sato, Yoshiaki Nagao, Nobuyuki Suzuki
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Patent number: 10585255Abstract: An intermittent-connection-type optical fiber ribbon includes: a plurality of optical fiber core wires that are disposed in parallel; a connecting resin that is coated on surfaces of the plurality of optical fiber core wires; and slits that are provided intermittently in the connecting resin partially between the optical fiber core wires in a longitudinal direction, and a marking is on the connecting resin.Type: GrantFiled: December 22, 2016Date of Patent: March 10, 2020Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki Sato, Keisuke Okada, Yoshiaki Nagao, Nobuyuki Suzuki, Yuuki Shimoda
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Publication number: 20200064550Abstract: An intermittently-coupled type optical fiber ribbon in which a plurality of ribbon type paired optical fibers each of which is integrally formed by bringing two optical fibers into contact with each other are arranged in parallel, and a coupling part in which adjacent ribbon type paired optical fibers are connected to each other and a non-coupling part in which ribbon type paired optical fibers are not connected are intermittently provided in a longitudinal direction, wherein an outer diameter dimension of the optical fiber is 0.22 mm or less, and a center distance of optical fibers adjacent with the coupling part interposed therebetween between the adjacent ribbon type paired optical fibers is 0.28±0.03 mm.Type: ApplicationFiled: November 27, 2017Publication date: February 27, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki SATO, Fumikazu YOSHIZAWA, Yoshiaki NAGAO
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Publication number: 20200041739Abstract: Provided is an optical fiber cable that is easier to be laid and enables higher-density packaging than an existing cable. This optical fiber cable is a slotless type optical fiber cable including: an optical unit formed by collecting and twisting a plurality of optical fibers or ribbons each formed by arranging the plurality of optical fibers; a cable core housing the optical unit; and a cable jacket provided around the cable core, and a tension member made of a fiber body within the cable core.Type: ApplicationFiled: March 19, 2018Publication date: February 6, 2020Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki SATO, Yoshiaki NAGAO, Ryoei OKA, Ken TAKAHASHI, Takao HIRAMA
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Publication number: 20200033828Abstract: The present invention is provided with: a servo motor; a servo driver which supplies a driving current to the servo motor and drives the servo motor; and an information processing device which transmits, to the servo driver, an operation command signal of the servo motor, wherein a movement range limiting device is further provided, which executes, on the basis of the operation command signal from the information processing device, automatic tuning that adjusts a gain in a servo motor control, and which prevents, in the automatic tuning, the servo motor from moving beyond a permissible range by returning the position of the servo motor to a prescribed start position.Type: ApplicationFiled: March 6, 2018Publication date: January 30, 2020Applicant: OMRON CorporationInventors: Fumiaki SATO, Daisuke TAMASHIMA
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Patent number: 10520906Abstract: The disclosure enables mutual relationships among operation statuses of each motor to be ascertained without using synchronous serial communication between multiple motor control devices. The motor control system is equipped with: a motor driver having a trigger determination part for determining whether or not a trigger condition is satisfied, a trigger notification part for transmitting a trigger notification indicating that the trigger condition is satisfied to motor drivers by asynchronous communication, and a trace result information generation part for causing a storage part to store a trigger data number for identifying operation data when the trigger condition is satisfied; and motor drivers each having a trace result information generation part for causing a storage part to store a slave trigger time at which the trigger notification is received, a trigger data number for identifying operation data corresponding to the slave trigger time, and a master trigger time.Type: GrantFiled: November 30, 2016Date of Patent: December 31, 2019Assignee: OMRON CorporationInventors: Daisuke Tamashima, Fumiaki Sato, Takao Ushiyama, Naoya Hashimoto
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Patent number: 10514517Abstract: Provided is an optical fiber cable whereby macrobend loss can be suppressed even when ribbons are mounted at high density in grooves. An optical fiber cable provided with optical units in which ribbons each having a plurality of optical fiber cores arranged in parallel are collected, a slot rod having a plurality of grooves for accommodating optical units, a tension member on which tension is applied, and a cable jacket for covering the outside of the slot rod. Each of the optical units is accommodated in the corresponding groove in a stranded state, and the occupancy of the optical units calculated from the cross-sectional area of the optical units with respect to the cross-sectional area of the groove is 25% to 65%.Type: GrantFiled: July 22, 2016Date of Patent: December 24, 2019Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Fumiaki Sato, Keisuke Okada, Yoshiaki Nagao, Kenta Tsuchiya, Nobuyuki Suzuki
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Patent number: 10488609Abstract: An intermittent-connection-type optical fiber ribbon in which a plurality of optical fiber core wires are disposed in parallel, and which includes: a connecting part where adjacent optical fiber core wires are connected; and a non-connecting part where adjacent optical fiber core wires are not connected, the connecting parts and the non-connecting parts are provided intermittently in a longitudinal direction, the non-connecting parts are not provided in the longitudinal direction between two the optical fiber core wires, the connecting part is recessed, and in a case where, in the longitudinal direction, a is length of the connecting part, b is length of a part where the non-connecting part between different optical fiber core wires overlap, c is length of the non-connecting part, and p is an interval of the connecting parts, c/a?1.5, b?50 mm, and (c/a)×p?200 mm are set.Type: GrantFiled: January 11, 2017Date of Patent: November 26, 2019Assignee: Sumitomo Electric Industries, Ltd.Inventors: Fumiaki Sato, Kenta Tsuchiya, Keisuke Okada, Yoshiaki Nagao, Nobuyuki Suzuki