Patents by Inventor Hiroyuki Taya
Hiroyuki Taya 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: 11808984Abstract: An optical fiber fuse protection device includes an upstream optical fiber disposed on an upstream side, a downstream optical fiber disposed on a downstream side, and a wall interposed between a part of the upstream optical fiber and a part of the downstream optical fiber. The downstream optical fiber is fusion-spliced to the upstream optical fiber and is made of a single optical fiber or a plurality of optical fibers fusion-spliced to each other.Type: GrantFiled: March 24, 2020Date of Patent: November 7, 2023Assignee: Fujikura Ltd.Inventor: Hiroyuki Taya
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Publication number: 20220357511Abstract: An optical fiber fuse protection device includes an upstream optical fiber disposed on an upstream side, a downstream optical fiber disposed on a downstream side, and a wall interposed between a part of the upstream optical fiber and a part of the downstream optical fiber. The downstream optical fiber is fusion-spliced to the upstream optical fiber and is made of a single optical fiber or a plurality of optical fibers fusion-spliced to each other.Type: ApplicationFiled: March 24, 2020Publication date: November 10, 2022Applicant: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Patent number: 9337605Abstract: An optical amplification component 1 includes a heat dissipation plate 10 and an amplification optical fiber 20 arranged on the heat dissipation plate 10. A first fiber portion 20A extending from a reference position RP between a first end E1 and a second end E2 of the amplification optical fiber 20 toward the first end E1 and a second fiber portion 20B extending from the reference position RP toward the second end E2 are wound in a spiral around the reference position RP so as to be along each other as well as not to overlap with each other, and the distance between the first fiber portion 20A and the second fiber portion 20B increases toward the ends thereof.Type: GrantFiled: February 25, 2014Date of Patent: May 10, 2016Assignee: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Patent number: 9312654Abstract: An optical amplification component 1 includes a heat dissipation plate 10 and an amplification optical fiber 20 arranged on the heat dissipation plate 10. The amplification optical fiber 20 includes a first section SC1 extending from a reference position RP between a first end E1 and a second end E2 of the amplification optical fiber 20 up to a position at which a fiber portion 20A extending from the reference position RP toward the end E1 and a fiber portion 20B extending from the reference position RP toward the end E2 are aligned in one direction, and a second section SC2 where the fiber portions 20A and 20B aligned in one direction are wound in a spiral outside the first section SC1. The circumferences of one and the other end parts of the amplification optical fiber 20 are separated from side surfaces of the fiber portions wound in a spiral.Type: GrantFiled: January 27, 2014Date of Patent: April 12, 2016Assignee: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Patent number: 9263847Abstract: A light delivery component includes a delivery fiber configured to include a core and a clad; and a heat radiating member, wherein the delivery fiber is configured to include a first light emitting unit connected to a first heat radiating member which is a portion of the heat radiating member and a second light emitting unit connected to a second heat radiating member which is another portion of the heat radiating member, and at least the second light emitting unit is bent, and wherein the first light emitting unit is installed closer to a light incidence end of the delivery fiber than the second light emitting unit, and a bending radius of the first light emitting unit is set to be larger than that of the second light emitting unit.Type: GrantFiled: September 20, 2013Date of Patent: February 16, 2016Assignee: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Patent number: 9136663Abstract: In a fiber amplifier including a third optical fiber made of a double clad fiber for amplifying light and a fifth optical fiber made of a single clad fiber for transmitting the light amplified by the double clad fiber, a fourth optical fiber made of a triple clad fiber is inserted between the third optical fiber and the fifth optical fiber.Type: GrantFiled: September 12, 2014Date of Patent: September 15, 2015Assignee: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Publication number: 20150029580Abstract: In a fiber amplifier including a third optical fiber made of a double clad fiber for amplifying light and a fifth optical fiber made of a single clad fiber for transmitting the light amplified by the double clad fiber, a fourth optical fiber made of a triple clad fiber is inserted between the third optical fiber and the fifth optical fiber.Type: ApplicationFiled: September 12, 2014Publication date: January 29, 2015Applicant: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Publication number: 20140240818Abstract: An optical amplification component 1 includes a heat dissipation plate 10 and an amplification optical fiber 20 arranged on the heat dissipation plate 10. A first fiber portion 20A extending from a reference position RP between a first end E1 and a second end E2 of the amplification optical fiber 20 toward the first end E1 and a second fiber portion 20B extending from the reference position RP toward the second end E2 are wound in a spiral around the reference position RP so as to be along each other as well as not to overlap with each other, and the distance between the first fiber portion 20A and the second fiber portion 20B increases toward the ends thereof.Type: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicant: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Publication number: 20140211300Abstract: An optical amplification component 1 includes a heat dissipation plate 10 and an amplification optical fiber 20 arranged on the heat dissipation plate 10. The amplification optical fiber 20 includes a first section SC1 extending from a reference position RP between a first end E1 and a second end E2 of the amplification optical fiber 20 up to a position at which a fiber portion 20A extending from the reference position RP toward the end E1 and a fiber portion 20B extending from the reference position RP toward the end E2 are aligned in one direction, and a second section SC2 where the fiber portions 20A and 20B aligned in one direction are wound in a spiral outside the first section SC1. The circumferences of one and the other end parts of the amplification optical fiber 20 are separated from side surfaces of the fiber portions wound in a spiral.Type: ApplicationFiled: January 27, 2014Publication date: July 31, 2014Applicant: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Publication number: 20140016656Abstract: A light delivery component includes a delivery fiber configured to include a core and a clad; and a heat radiating member, wherein the delivery fiber is configured to include a first light emitting unit connected to a first heat radiating member which is a portion of the heat radiating member and a second light emitting unit connected to a second heat radiating member which is another portion of the heat radiating member, and at least the second light emitting unit is bent, and wherein the first light emitting unit is installed closer to a light incidence end of the delivery fiber than the second light emitting unit, and a bending radius of the first light emitting unit is set to be larger than that of the second light emitting unit.Type: ApplicationFiled: September 20, 2013Publication date: January 16, 2014Applicant: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Publication number: 20130251318Abstract: A method for connecting optical fibers and a connection structure of optical fibers capable of suppressing axial misalignment between cores in end-to-end connection of optical fibers at least one of which has a clad for a non-circular shape. A core of at least one optical fiber has a circular shape and a clad thereof has a non-circular shape, and in the optical fiber having the clad of the non-circular shape, the clad is formed to have a more circular shape at and near a splice than at another portion thereof.Type: ApplicationFiled: May 21, 2013Publication date: September 26, 2013Applicant: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Patent number: 8511914Abstract: A method for connecting optical fibers and a connection structure of optical fibers capable of suppressing axial misalignment between cores in end-to-end connection of optical fibers at least one of which has a clad for a non-circular shape.Type: GrantFiled: March 21, 2011Date of Patent: August 20, 2013Assignee: Fujikura Ltd.Inventor: Hiroyuki Taya
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Patent number: 8469611Abstract: A method for connecting optical fibers and a connection structure of optical fibers capable of suppressing axial misalignment between cores in end-to-end connection of optical fibers at least one of which has a clad for a non-circular shape.Type: GrantFiled: March 21, 2011Date of Patent: June 25, 2013Assignee: Fujikura Ltd.Inventor: Hiroyuki Taya
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Publication number: 20110235982Abstract: A method for connecting optical fibers and a connection structure of optical fibers capable of suppressing axial misalignment between cores in end-to-end connection of optical fibers at least one of which has a clad for a non-circular shape.Type: ApplicationFiled: March 21, 2011Publication date: September 29, 2011Applicant: FUJIKURA LTD.Inventor: Hiroyuki Taya
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Patent number: 7699541Abstract: The present invention is provided for fusion splicing optical fibers with low splice loss even when a shape of a discharge beam for the splicing is distorted. In the present invention, a preliminary discharge is performed with the optical fibers outside a discharge area and an image of the discharge beam thereof is picked up. Based on this image, brightness distributions of the discharge beam are estimated on a plurality of lines in a Z direction that are set in different positions in an X direction, and a discharge center of the beam is found from the plurality of brightness distributions. Then, the abutment portion of the optical fibers is positioned at the discharge center, and a main discharge is performed so as to fusion splice the distal ends of the optical fibers.Type: GrantFiled: January 14, 2009Date of Patent: April 20, 2010Assignee: Fujikura LtdInventors: Koji Ozawa, Hiroyuki Taya
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Publication number: 20090136186Abstract: The present invention is provided for fusion splicing optical fibers with low splice loss even when a shape of a discharge beam for the splicing is distorted. In the present invention, a preliminary discharge is performed with the optical fibers outside a discharge area and an image of the discharge beam thereof is picked up. Based on this image, brightness distributions of the discharge beam are estimated on a plurality of lines in a Z direction that are set in different positions in an X direction, and a discharge center of the beam is found from the plurality of brightness distributions. Then, the abutment portion of the optical fibers is positioned at the discharge center, and a main discharge is performed so as to fusion splice the distal ends of the optical fibers.Type: ApplicationFiled: January 14, 2009Publication date: May 28, 2009Applicant: FUJIKURA LTD.Inventors: Koji Ozawa, Hiroyuki Taya
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Patent number: 7494288Abstract: The present invention is provided for fusion splicing optical fibers with low splice loss even when a shape of a discharge beam for the splicing is distorted. In the present invention, a preliminary discharge is performed with the optical fibers outside a discharge area and an image of the discharge beam thereof is picked up. Based on this image, brightness distributions of the discharge beam are estimated on a plurality of lines in a Z direction that are set in different positions in an X direction, and a discharge center of the beam is found from the plurality of brightness distributions. Then, the abutment portion of the optical fibers is positioned at the discharge center, and a main discharge is performed so as to fusion splice the distal ends of the optical fibers.Type: GrantFiled: March 5, 2002Date of Patent: February 24, 2009Assignee: Fujikura Ltd.Inventors: Koji Ozawa, Hiroyuki Taya
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Publication number: 20030002827Abstract: The present invention is provided for fusion splicing optical fibers with low splice loss even when a shape of a discharge beam for the splicing is distorted. In the present invention, a preliminary discharge is performed with the optical fibers outside a discharge area and an image of the discharge beam thereof is picked up. Based on this image, brightness distributions of the discharge beam are estimated on a plurality of lines in a Z direction that are set in different positions in an X direction, and a discharge center of the beam is found from the plurality of brightness distributions. Then, the abutment portion of the optical fibers is positioned at the discharge center, and a main discharge is performed so as to fusion splice the distal ends of the optical fibers.Type: ApplicationFiled: March 5, 2002Publication date: January 2, 2003Inventors: Koji Ozawa, Hiroyuki Taya
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Patent number: 5158591Abstract: In an optical fiber ribbon fusion-splicing device, a TV camera is set such that the horizontal direction of an image sensor contained in the TV camera in which direction a horizontal scanning is carried out and the resolution of the image sensor is higher than that in the vertical direction in which a vertical scanning is carried out is a direction perpendicular to the coaxial direction of a pair of grooved supporting members for supporting fibers of a pair of optical fiber ribbons to be fusion-spliced. Thus, when the fibers of the pair of optical fiber ribbons are set on the supporting members in the coaxial direction thereof, the horizontal direction of the image sensor is perpendicular to the coaxial direction of the fibers of the optical fiber ribbon. Since, therefore, misalignment of the fibers is involved in the high resolution direction, the misalignment can be detected with high precision, without decreasing the power factor of the image sensor.Type: GrantFiled: October 9, 1990Date of Patent: October 27, 1992Assignee: Fujikura Ltd.Inventors: Tsutomu Onodera, Takeshi Yamada, Hiroyuki Taya
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Patent number: 5024501Abstract: The present invention discloses a manufacturing method for polarization maintaining optical fiber couplers which are used for joining light signals and at optical fiber branch points. The disclosed manufacturing method employs polarization maintaining optical fibers, and describes a method for mutually aligning the stress applying parts of such optical fibers so that polarized optical signals are maintained in the polarized state when transiting such couplers.Type: GrantFiled: April 9, 1990Date of Patent: June 18, 1991Assignee: Fujikura Ltd.Inventors: Hiroyuki Taya, Mikio Yoshinuma, Takeshi Yamada, Kenji Nishide, Fumio Suzuki, Hirohisa Fujimoto, Ryozo Yamauchi