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公开(公告)号：US20240201455A1
公开(公告)日：2024-06-20
申请号：US18555920
申请日：2021-09-30
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kei Katou , Hideki Ichimei
IPC: G02B6/42
CPC classification number: G02B6/4204 , G02B6/4244
Abstract: Mechanical strength of a lens that optically couples an optical waveguide and an optical fiber provided on a substrate is improved. A lens unit that optically couples an optical waveguide provided on a substrate and an optical fiber has a lens portion and a holding portion that holds the lens portion, and the holding portion has a thick portion, along one side surface that is not a surface through which an optical axis passes, in which a thickness measured in a direction of the optical axis is larger than a thickness of an other portion of the holding portion.
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公开(公告)号：US10527874B2
公开(公告)日：2020-01-07
申请号：US16090276
申请日：2017-04-03
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Kei Katou
Abstract: An optical modulator is provided and includes a substrate that has an electro-optic effect, an optical waveguide that is formed on the substrate, a plurality of control electrodes that control a light wave propagated through the optical waveguide, and a plurality of light receiving elements that detect a light wave propagated through the optical waveguide. The optical modulator has two or more independent optical waveguide modulation portions. The light receiving elements are respectively provided in an upper part of the substrate with respect to the independent optical waveguide modulation portions. A wiring substrate is located above the substrate. A plurality of electric wirings are located on the wiring substrate. The plurality of electric wirings are disposed to extend in the vicinity of one side of the wiring substrate, are electrically connected to the light receiving elements, and output a signal detected by the light receiving elements to the outside.
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公开(公告)号：US10268057B2
公开(公告)日：2019-04-23
申请号：US15851851
申请日：2017-12-22
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Kei Katou , Toru Sugamata
Abstract: An optical modulator includes: an optical modulation element which is accommodated in a housing and has a signal electrode; a lead pin for inputting a high-frequency signal; a relay substrate in which a conductor pattern which electrically connects the lead pin and the signal electrode is formed; and a conductive extension portion which extends along a length direction of the lead pin in a range which includes at least a position of a connection portion between the lead pin and the conductor pattern, in which the extension portion is electrically connected to the housing.
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4.发明授权公开(公告)号：US11500264B2
公开(公告)日：2022-11-15
申请号：US17399625
申请日：2021-08-11
Applicant: Sumitomo Osaka Cement Co., Ltd.
Inventor： Kei Katou , Norikazu Miyazaki
Abstract: An optical waveguide device includes a substrate on which an optical waveguide is formed, and an object that is disposed on the substrate. The optical waveguide includes a mode conversion/branching portion that converts a mode of a light wave propagating through the optical waveguide and branches the light wave, and the object is disposed to cover a part or the whole of the mode conversion/branching portion or not to cover the mode conversion/branching portion when the substrate is viewed in a plan view. In a case where the object is disposed to cover a part of the mode conversion/branching portion, the object is disposed not to consecutively cover a section over a length of a predetermined value or higher in an advancing direction of a light wave.
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公开(公告)号：US09335570B2
公开(公告)日：2016-05-10
申请号：US14369511
申请日：2012-12-28
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kei Katou , Norikazu Miyazaki
CPC classification number: G02F1/035 , G02F1/0121 , G02F1/225 , G02F1/2255 , G02F2001/212
Abstract: An object of the present invention is to provide an optical waveguide element module where the bonding wires can be prevented from disengaging or disconnecting so as to provide high reliability. Another object is to provide an optical waveguide element module that can be made compact and where an increase in the manufacturing cost can be minimized. An optical waveguide element module having: a waveguide substrate 1 on which an optical waveguide (not shown) and control electrodes (E1 to E4) for controlling light waves that propagate through the optical waveguide are formed; external substrates (21 to 24) having wire circuits (TM1, C1), which are connected to control electrodes electrically, disposed proximity to the waveguide substrate; a housing 3 in which the external substrate and the waveguide substrate are arranged; and terminals (T21 to T24) which are connected to an external electric circuit (not shown) for supplying electrical signals to the control electrode or deriving electrical signals from the control electrode provided with the housing, wherein relay electrode pads (CP1, CP4) which are electrically isolated from both of the wiring circuit and the control electrode are formed in any portion of the waveguide substrate 1 and the external substrates (21 to 24), and at least one bonding wire (W21, W22, W41, W42) is connected from a control electrode to the terminal or from the wire circuit to the terminal via the relay electrode pad.
Abstract translation: 本发明的目的是提供一种光波导元件模块，其中可以防止接合线脱离或断开，从而提供高可靠性。 另一个目的是提供一种光波导元件模块，该光波导元件模块可以制造得紧凑并且可以最小化制造成本的增加。 一种光波导元件模块，具有：波导基板1，其上形成有用于控制通过光波导传播的光波的光波导（未示出）和控制电极（E1至E4）; 具有布置在波导基板附近的电连接到控制电极的线路电路（TM1，C1）的外部基板（21至24） 设置有外部基板和波导基板的壳体3; 和连接到用于向控制电极提供电信号或从设置有壳体的控制电极导出电信号的外部电路（未示出）连接的端子（T21至T24），其中继电器电极焊盘（CP1，CP4） 与布线电路电气隔离，并且控制电极形成在波导基板1和外部基板（21〜24）的任意部分，并且至少一个接合线（W21，W22，W41，W42）被连接 从控制电极到终端，或者通过中继电极焊盘从线电路到终端。
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Patent Agency Ranking
公开(公告)号：US11109480B2
公开(公告)日：2021-08-31
申请号：US16261793
申请日：2019-01-30
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Norikazu Miyazaki , Kei Katou , Toshio Kataoka
Abstract: A transmission line has a signal electrode formed on one surface of a flexible printed circuit, and a ground electrode formed on the other surface of the flexible printed circuit. A connection terminal has signal terminals formed on both the surfaces of the flexible printed circuit and electrically connected to each other through a via hole, and ground terminals formed on both the surfaces of the flexible printed circuit and electrically connected to each other through the via hole. The signal terminal on the surface, on which the ground electrode is formed, is formed such that at least a width in an end portion on the transmission line side is narrower than a width of a part of the signal terminal on the surface, on which the signal electrode is formed, to be at the same position when the flexible printed circuit is seen in a plan view.
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公开(公告)号：US10162201B2
公开(公告)日：2018-12-25
申请号：US15515831
申请日：2015-12-24
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Norikazu Miyazaki , Toshio Kataoka , Youichi Hosokawa , Kei Katou
Abstract: Provided is an optical modulator in which low-voltage drive and a stable modulation characteristic are secured over a wide bandwidth. An optical modulator includes: a substrate 10; an optical waveguide (not shown) formed in the substrate 10; a modulation electrode (a signal electrode 11 and a ground electrode 12) for modulating light waves propagating through the optical waveguide; and an external signal line (not shown, only a connection connector 4 is shown) which is provided outside the substrate and supplies a modulation signal to the modulation electrode, in which an impedance value of the modulation electrode in an active region S in which an electric field formed by the modulation electrode is applied to the optical waveguide is set to be lower than an impedance value of the external signal line, and an impedance adjustment part 21 having an impedance adjustment function with respect to mainly a modulation signal in a low-frequency area and configured of a lumped-constant circuit, and an impedance matching line L having an impedance adjustment function with respect to mainly a modulation signal in a high-frequency area are disposed between the external signal line and the active region of the modulation electrode.
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公开(公告)号：US20150063743A1
公开(公告)日：2015-03-05
申请号：US14369511
申请日：2012-12-28
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kei Katou , Norikazu Miyazaki
CPC classification number: G02F1/035 , G02F1/0121 , G02F1/225 , G02F1/2255 , G02F2001/212
Abstract: An object of the present invention is to provide an optical waveguide element module where the bonding wires can be prevented from disengaging or disconnecting so as to provide high reliability. Another object is to provide an optical waveguide element module that can be made compact and where an increase in the manufacturing cost can be minimized. An optical waveguide element module having: a waveguide substrate 1 on which an optical waveguide (not shown) and control electrodes (E1 to E4) for controlling light waves that propagate through the optical waveguide are formed; external substrates (21 to 24) having wire circuits (TM1, C1), which are connected to control electrodes electrically, disposed proximity to the waveguide substrate; a housing 3 in which the external substrate and the waveguide substrate are arranged; and terminals (T21 to T24) which are connected to an external electric circuit (not shown) for supplying electrical signals to the control electrode or deriving electrical signals from the control electrode provided with the housing, wherein relay electrode pads (CP1, CP4) which are electrically isolated from both of the wiring circuit and the control electrode are formed in any portion of the waveguide substrate 1 and the external substrates (21 to 24), and at least one bonding wire (W21, W22, W41, W42) is connected from a control electrode to the terminal or from the wire circuit to the terminal via the relay electrode pad .
Abstract translation: 本发明的目的是提供一种光波导元件模块，其中可以防止接合线脱离或断开，从而提供高可靠性。 另一个目的是提供一种光波导元件模块，该光波导元件模块可以制造得紧凑并且可以最小化制造成本的增加。 一种光波导元件模块，具有：波导基板1，其上形成有用于控制通过光波导传播的光波的光波导（未示出）和控制电极（E1至E4）; 具有布置在波导基板附近的电连接到控制电极的线路电路（TM1，C1）的外部基板（21至24） 设置有外部基板和波导基板的壳体3; 和连接到用于向控制电极提供电信号或从设置有壳体的控制电极导出电信号的外部电路（未示出）连接的端子（T21至T24），其中继电器电极焊盘（CP1，CP4） 与布线电路电气隔离，并且控制电极形成在波导基板1和外部基板（21〜24）的任意部分，并且至少一个接合线（W21，W22，W41，W42）被连接 从控制电极到终端，或者通过中继电极焊盘从线电路到终端。
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公开(公告)号：US11204507B2
公开(公告)日：2021-12-21
申请号：US16364457
申请日：2019-03-26
Applicant: Sumitomo Osaka Cement Co., Ltd.
Inventor： Tokutaka Hara , Kei Katou
Abstract: A positioning member for positioning optical components includes a laminated body in which a plurality of thin metal plates is laminated. In the positioning member for positioning the optical components by an upper surface of a first plate forming the laminated body and a side surface of a second plate disposed above the first plate, a portion where two non-parallel side surfaces of the second plate for positioning the optical components cross each other includes a cutout portion including a crossing portion of the side surfaces.
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公开(公告)号：US10558064B2
公开(公告)日：2020-02-11
申请号：US15941026
申请日：2018-03-30
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Norikazu Miyazaki , Kei Katou
Abstract: An optical communication module includes: an optical modulator that includes an optical modulation element housed in a rectangular parallelepiped container; a driver circuit that inputs a high-frequency signal to the optical modulation element; and a housing that houses the optical modulator and the driver circuit. An electrical interface is provided on one lateral surface of the housing, and an optical interface is provided on another lateral surface, which is opposite to the lateral surface, of the housing. In the optical modulator, an end of a wiring substrate, which is configured to introduce the high-frequency signal to the optical modulation element, is led out from one short-side side of the rectangular parallelepiped container, and the driver circuit is disposed between the short-side side of the optical modulator and the electrical interface.
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