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公开(公告)号：US20190278033A1
公开(公告)日：2019-09-12
申请号：US16420509
申请日：2019-05-23
Applicant: TOTO LTD.
Inventor： Kohei TOMINAGA , Satoshi KANEYUKI , Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Hiroki SATO
IPC: G02B6/38
Abstract: A pigtail-type optical receptacle includes a tubular ferrule having a through-hole extending in an axial direction, an optical fiber inserted into the through-hole such that part of the optical fiber extends outside the ferrule, a protective member covering the part of the optical fiber extending outside the ferrule, a tubular sleeve mounted on a front end side, outer surface of the ferrule, a holder tubular having holding the rear end side of the ferrule, and a tubular housing covering the ferrule and at least a portion of the sleeve. The ferrule through-hole includes first and second regions, the second region being disposed rearward of the first region, and the housing engaging the outer surface of the holder rearward of the first region.
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公开(公告)号：US20170293072A1
公开(公告)日：2017-10-12
申请号：US15632973
申请日：2017-06-26
Applicant: TOTO LTD.
Inventor： Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Satoshi KANEYUKI , Kohei TOMINAGA , Hiroki SATO
CPC classification number: G02B6/421 , G02B6/02004 , G02B6/02033 , G02B6/38 , G02B6/3846 , G02B6/42
Abstract: An optical receptacle includes: a fiber stub including an optical fiber, a ferrule, and an elastic member; and a holder holding the fiber stub, the optical fiber including a cladding and a core for conducting light, the ferrule having a through-hole fixing the optical fiber, the elastic member fixing the optical fiber in the through-hole, the fiber stub having one end surface on the ferrule side, and another on an opposite side, the optical fiber including first and third portions on the opposite end surface sides and a second portion therebetween, a core diameter of the first portion being smaller than the third portion, and a core diameter of the second portion increasing from the first portion side toward the third portion side.
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公开(公告)号：US20190154925A1
公开(公告)日：2019-05-23
申请号：US16234877
申请日：2018-12-28
Applicant: TOTO LTD.
Inventor： Sho KONDO , Hirotsugu AGATSUMA , Satoshi KANEYUKI , Satoshi HAKOZAKI , Hiroki SATO , Kohei TOMINAGA
Abstract: There are provided an optical receptacle having an optical fiber including a first portion on another end surface side, a third portion on one end surface side, and a second portion between the first portion and the third portion; a core diameter at the first portion is smaller than the core diameter at the third portion; the core diameter at the second portion increases from the first portion side toward the third portion side; a first elastic member is provided between the optical fiber and an inner wall of a through-hole; a holder holds the another end surface side of a fiber stub; and the sleeve holds the one end surface side of the fiber stub.
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Patent Agency Ranking
公开(公告)号：US20210055484A1
公开(公告)日：2021-02-25
申请号：US17094148
申请日：2020-11-10
Applicant: TOTO LTD.
Inventor： Kohei TOMINAGA , Satoshi KANEYUKI , Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Hiroki SATO
Abstract: A pigtail-type optical receptacle includes a tubular ferrule having a through-hole extending in an axial direction, an optical fiber inserted into the through-hole such that part of the optical fiber extends outside the ferrule, a protective member covering the part of the optical fiber extending outside the ferrule, a tubular sleeve mounted on a front end side, outer surface of the ferrule, a holder tubular having holding the rear end side of the ferrule, and a tubular housing covering the ferrule and at least a portion of the sleeve. The ferrule through-hole includes first and second regions, the second region being disposed rearward of the first region, and the housing engaging the outer surface of the holder rearward of the first region.
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公开(公告)号：US20210026080A1
公开(公告)日：2021-01-28
申请号：US17067081
申请日：2020-10-09
Applicant: TOTO LTD.
Inventor： Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Hiroki SATO , Satoshi KANEYUKI , Kohei TOMINAGA , Arato SUZUKI
Abstract: An optical receptacle includes a fiber stub, a block, and a first elastic member. The fiber stub includes an optical fiber, and a ferrule provided on one end side of the optical fiber. The block is separated from the ferrule and has one end surface, an other end surface, and a through-hole extending from the one end surface to the other end surface. A portion of the optical fiber protrudes from the ferrule and is inserted into the through-hole. The first elastic member fixes the optical fiber in the through-hole. The portion of the optical fiber includes first to third portions. The second portion is provided between the first portion and the third portion. A core diameter at the first portion is smaller than a core diameter at the third portion. A core diameter at the second portion increases from the first portion toward the third portion.
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公开(公告)号：US20210041636A1
公开(公告)日：2021-02-11
申请号：US17069225
申请日：2020-10-13
Applicant: TOTO LTD.
Inventor： Sho KONDO , Hirotsugu AGATSUMA , Satoshi KANEYUKI , Satoshi HAKOZAKI , Hiroki SATO , Kohei TOMINAGA
Abstract: There are provided an optical receptacle having an optical fiber including a first portion on another end surface side, a third portion on one end surface side, and a second portion between the first portion and the third portion; a core diameter at the first portion is smaller than the core diameter at the third portion; the core diameter at the second portion increases from the first portion side toward the third portion side; a first elastic member is provided between the optical fiber and an inner wall of a through-hole; a holder holds the another end surface side of a fiber stub; and the sleeve holds the one end surface side of the fiber stub.
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公开(公告)号：US20190212501A1
公开(公告)日：2019-07-11
申请号：US16356479
申请日：2019-03-18
Applicant: TOTO LTD.
Inventor： Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Hiroki SATO , Satoshi KANEYUKI , Kohei TOMINAGA , Arato SUZUKI
CPC classification number: G02B6/3846 , G02B6/02 , G02B6/02004 , G02B6/02033 , G02B6/30 , G02B6/36 , G02B6/42 , G02B6/421
Abstract: An optical receptacle includes a fiber stub, a block, and a first elastic member. The fiber stub includes an optical fiber, and a ferrule provided on one end side of the optical fiber. The block is separated from the ferrule and has one end surface, an other end surface, and a through-hole extending from the one end surface to the other end surface. A portion of the optical fiber protrudes from the ferrule and is inserted into the through-hole. The first elastic member fixes the optical fiber in the through-hole. The portion of the optical fiber includes first to third portions. The second portion is provided between the first portion and the third portion. A core diameter at the first portion is smaller than a core diameter at the third portion. A core diameter at the second portion increases from the first portion toward the third portion.
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公开(公告)号：US20180314019A1
公开(公告)日：2018-11-01
申请号：US16029172
申请日：2018-07-06
Applicant: TOTO LTD.
Inventor： Kohei TOMINAGA , Satoshi KANEYUKI , Sho KONDO , Hirotsugu AGATSUMA , Satoshi HAKOZAKI , Hiroki SATO
CPC classification number: G02B6/3869 , G02B6/3837 , G02B6/3874 , G02B6/4285 , G02B6/4292
Abstract: A pigtail-type optical receptacle includes a ferrule, an optical fiber, a protective member, a sleeve, and a holder. The ferrule has a through-hole extending in an axial direction. The optical fiber is held by the ferrule in a state of being inserted into the through-hole and extends outside the ferrule from a rear end side of the ferrule. The protective member covers a portion of the optical fiber extending outside the ferrule. The sleeve engages an outer surface of the ferrule. The through-hole includes a first region and a second region. The second region is disposed rearward of the first region. The width in an orthogonal direction orthogonal to the axial direction of the through-hole in the second region widens toward the rear end side of the ferrule. The holder holds a portion of the outer surface of the ferrule rearward of the first region.
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