公开(公告)号：USD962177S1

公开(公告)日：2022-08-30

申请号：US35511491

申请日：2020-09-03

Applicant: Fujikura Ltd.

Designer： Hirotaka Asada ,  Shigeo Takahashi

公开(公告)号：US20210239909A1

公开(公告)日：2021-08-05

申请号：US17058281

申请日：2019-03-26

Applicant: Fujikura Ltd.

Inventor： Takahiko Sabano ,  Akito Nishimura ,  Susumu Nakaya ,  Hirotaka Asada

IPC: G02B6/30 ,  G02B6/34

Abstract: An optical connector system includes: an optical path-changing device including a fiber-holding part that holds a single-mode optical fiber along a first direction, and a reflection surface that reflects an optical signal; and a relay device on a substrate. The substrate includes a grating coupler for inputting/outputting an optical signal in a second direction that is inclined with respect to a direction perpendicular to a surface of the substrate. The optical path-changing device and the relay device each have an input/output surface to/from which the optical signal is inputted/outputted. A first convex lens is disposed on the input/output surface of the optical path-changing device. A second convex lens is disposed on the input/output surface of the relay device.

公开(公告)号：US20190353850A1

公开(公告)日：2019-11-21

申请号：US16484249

申请日：2018-02-28

Applicant: FUJIKURA LTD.

Inventor： Hirotaka Asada ,  Akihiro Nakama ,  Shigeo Takahashi

IPC: G02B6/38 ,  G01D5/28

Abstract: An optical loopback member attaches to a counterpart optical connector to face a plurality of optical fibers of the counterpart optical connector that includes a first input optical fiber, second input optical fiber, first output optical fiber, and second output optical fiber. The optical loopback member includes a first reflector including: a first output light reflection surface that reflects a first output light, outputted in a first direction, from the first output optical fiber; and a first input light reflection surface that reflects light reflected by the first output light reflection surface and directs the reflected light to the first input optical fiber arranged in a second direction with respect to the first output optical fiber. The second direction is perpendicular to the first direction.

公开(公告)号：US11448834B2

公开(公告)日：2022-09-20

申请号：US16763716

申请日：2018-08-06

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Hirotaka Asada

IPC: G02B6/38 ,  G02B6/32 ,  G02B6/40

Abstract: A ferrule structure includes: a ferrule body including a body-side guide hole for insertion of a guide pin, and a holding hole that holds light guide members forming light guides; a lens plate including a plate-side guide hole for insertion of the guide pin, and a lens array that includes lenses aligned to the light guides; and a recessed part in an end part of at least one of the body-side guide hole and the plate-side guide hole on an adhesion surface side.

公开(公告)号：US20210132299A1

公开(公告)日：2021-05-06

申请号：US16492309

申请日：2018-03-06

Applicant: FUJIKURA LTD. ,  TOMOEGAWA CO., LTD.

Inventor： Akihiro Nakama ,  Shigeo Takahashi ,  Hirotaka Asada ,  Makoto Goto ,  Masayoshi Suzuki

IPC: G02B6/38 ,  B08B7/00

Abstract: A cleaning tool that cleans an optical connector includes an adhesive body that contacts an optical signal region of the optical connector where an optical signal enters and is emitted from the optical connector; and a base that holds the adhesive body. The base includes a first protrusion on a holding surface of a holding part that holds the adhesive body. The first protrusion is disposed at a rear side of a section of the adhesive body and is in contact with the optical signal region.

公开(公告)号：US10768380B2

公开(公告)日：2020-09-08

申请号：US16471007

申请日：2017-12-07

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Shigeo Takahashi ,  Hirotaka Asada ,  Kazuaki Toba ,  Masanari Yamamoto ,  Ryohei Takahashi

IPC: G02B6/38 ,  G02B6/42

Abstract: A ferrule that holds an end part of an optical fiber includes a fiber hole into which the optical fiber is inserted and an upper wall part and a lower wall part that define a hollow adhesive filling part, where the lower wall part faces the upper wall part. The adhesive filling part is filled with an adhesive applied between the optical fiber inserted in the fiber hole and an inner wall surface of the adhesive filling part. The upper wall part has an upper opening through which the adhesive passes into the adhesive filling part, and the lower wall part has a lower opening that ventilates the adhesive filling part to outside of the ferrule.

公开(公告)号：US20200016632A1

公开(公告)日：2020-01-16

申请号：US16487269

申请日：2018-03-06

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Junichi Nakane ,  Kunihiko Fujiwara ,  Shigeo Takahashi ,  Hirotaka Asada ,  Makoto Goto ,  Masayoshi Suzuki

IPC: B08B1/00 ,  G02B6/26 ,  G02B6/38

Abstract: A cleaning tool that cleans an optical connector includes an adhesive body that contacts an optical signal region of the optical connector where an optical signal enters and is emitted from the optical connector. The adhesive body includes a protrusion that protrudes in a region—that contacts the optical signal region.

公开(公告)号：US11467352B2

公开(公告)日：2022-10-11

申请号：US17294916

申请日：2019-09-17

Applicant: FUJIKURA LTD.

Inventor： Akihiro Nakama ,  Hirotaka Asada

IPC: G02B6/38 ,  G02B6/25 ,  G02B6/40

Abstract: A ferrule includes: a main body configured to hold an end of a first optical fiber and an end of a second optical fiber parallel to the first optical fiber; and a lens plate including a first abutment surface configured to abut against an end face of the first optical fiber, a second abutment surface configured to abut against an end face of the second optical fiber, a first lens configured to face the end face of the first optical fiber, and a second lens configured to face the end face of the second optical fiber. The first abutment surface is inclined with respect to a plane perpendicular to a first optical axis of the first optical fiber. The second abutment surface is inclined with respect to a plane perpendicular to a second optical axis of the second optical fiber.

公开(公告)号：USD964292S1

公开(公告)日：2022-09-20

申请号：US35511482

申请日：2020-09-03

Applicant: Fujikura Ltd.

Designer： Hirotaka Asada ,  Shigeo Takahashi

公开(公告)号：US11372164B2

公开(公告)日：2022-06-28

申请号：US17058281

申请日：2019-03-26

Applicant: Fujikura Ltd.

Inventor： Takahiko Sabano ,  Akito Nishimura ,  Susumu Nakaya ,  Hirotaka Asada

IPC: G02B6/30 ,  G02B6/34 ,  G02B6/42

Abstract: An optical connector system includes: an optical path-changing device including a fiber-holding part that holds a single-mode optical fiber along a first direction, and a reflection surface that reflects an optical signal; and a relay device on a substrate. The substrate includes a grating coupler for inputting/outputting an optical signal in a second direction that is inclined with respect to a direction perpendicular to a surface of the substrate. The optical path-changing device and the relay device each have an input/output surface to/from which the optical signal is inputted/outputted. A first convex lens is disposed on the input/output surface of the optical path-changing device. A second convex lens is disposed on the input/output surface of the relay device.