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公开(公告)号：US20190258089A1
公开(公告)日：2019-08-22
申请号：US16397289
申请日：2019-04-29
Applicant: Sumitomo Osaka Cement Co., Ltd.
Inventor： Kei KATOU , Toshio KATAOKA , Junichiro ICHIKAWA
Abstract: An optical modulator including an optical modulation element mounted inside a housing, in which at least a portion of an electric line is connected to an external circuit board through a flexible printed circuit, and which is disposed on the external circuit board. A recess portion that mounts the flexible printed circuit is formed on an outer bottom surface of the housing and at a part where the flexible printed circuit is connected, and a device for preventing a resonance mode is provided such that a resonance mode of a microwave and a millimeter wave or a parallel plate mode is prevented from being generated among a surface A of the recess portion facing the flexible printed circuit, an electric wiring part B provided on the flexible printed circuit overlapping the surface A when seen in a plan view, an electric wiring part C provided on the external circuit board overlapping the surface A when seen in a plan view.
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公开(公告)号：US20190025612A1
公开(公告)日：2019-01-24
申请号：US15755735
申请日：2016-09-27
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Kei KATOU , Toshio KATAOKA , Junichiro ICHIKAWA
CPC classification number: G02F1/0102 , H05K1/0216 , H05K1/028 , H05K1/119 , H05K1/147 , H05K2201/052
Abstract: Provided is an optical modulator in which a phenomenon of a resonance mode or the like is prevented from being generated in a recess portion of a housing that mounts a flexible printed circuit and of which broadband characteristics are improved.There is provided an optical modulator in which an optical modulation element is mounted inside a housing, in which at least a portion of an electric line is connected to an external circuit board 7 through a flexible printed circuit 6, and which is disposed on the external circuit board. A recess portion (area indicated with a dotted line D) that mounts the flexible printed circuit is formed on an outer bottom surface of the housing and at a part where the flexible printed circuit is connected, and means for preventing a resonance mode or the like (for example, a corrugated shape 21) is provided such that a resonance mode of a microwave and a millimeter wave or a parallel plate mode is prevented from being generated among a surface A of the recess portion facing the flexible printed circuit, an electric wiring part B provided on the flexible printed circuit overlapping the surface A when seen in a plan view, an electric wiring part C provided on the external circuit board overlapping the surface A when seen in a plan view.
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13.发明申请公开(公告)号：US20180288874A1
公开(公告)日：2018-10-04
申请号：US15924378
申请日：2018-03-19
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Toshio KATAOKA , Kei KATOU
Abstract: An optical device includes a connection pad, which is connected to a conductor pattern on the circuit substrate, at one edge. The connection pad includes one ground pad, and two or more signal pads between which the ground pad is interposed from its both sides. The ground pad includes a concave portion including an opening at the edge. The circuit substrate is provided with a metal columnar member in the conductor pattern to which the ground pad is connected. The conductor pattern and the connection pad are fixed to each other with solder in a state in which the columnar member is fitted into the concave portion. Solder, which gradually rises from the ground pattern to a lateral surface of the columnar member, is formed between the columnar member and the ground pattern that is formed in the flexible printed circuit.
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14.发明公开公开(公告)号：US20240159970A1
公开(公告)日：2024-05-16
申请号：US18284498
申请日：2022-03-30
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Takeshi SAKAI , Toshio KATAOKA , Yu KATAOKA
Abstract: An optical waveguide device that enables a location in which an optical loss such as a propagation loss or a coupling loss occurs to be easily specified is provided. An optical waveguide device includes a substrate 1 on which an optical waveguide 2 is formed, and a grating 6 formed in a part of the optical waveguide 2 or a grating 6 connected to a monitoring optical waveguide 5 that merges with or branches from a part of the optical waveguide 2, in which inputting a light wave into the optical waveguide or outputting at least a part of the light wave propagating through the optical waveguide is performed through the grating 6.
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Patent Agency Ranking
公开(公告)号：US20240061309A1
公开(公告)日：2024-02-22
申请号：US18267695
申请日：2021-12-23
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Toshio KATAOKA , Shingo TAKANO
Abstract: An optical modulator that can suppress crosstalk of a modulation signal even in a case where a wiring substrate is disposed to overlap with a modulation substrate is provided. An optical modulator includes a modulation substrate 1 that includes an optical waveguide and a modulation electrode 10 for modulating a light wave which propagates through the optical waveguide, and a wiring substrate 2 provided with wiring 22 for relaying a modulation signal to be applied to the modulation electrode 10, in which the wiring substrate is disposed to overlap with the modulation substrate to cover an action portion on which modulation is performed by the modulation electrode, and an electromagnetic wave absorption member SH is disposed at at least a part of a position facing the action portion in the wiring substrate.
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公开(公告)号：US20210302766A1
公开(公告)日：2021-09-30
申请号：US17170034
申请日：2021-02-08
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Takeshi SAKAI , Toshio KATAOKA
Abstract: An optical modulator includes a substrate on which an optical waveguide and a modulation electrode that modulates a light wave propagating through the optical waveguide are formed, and a case housing the substrate, the optical waveguide includes at least an optical branching part that branches one light wave into two light waves or an optical combining part that combines two light waves into one light wave, the modulation electrode has a signal electrode and a ground electrode, and a part of the signal electrode is disposed so as to cross the optical branching part or the optical combining part, and the optical modulator is provided with a suppressing unit that suppresses changes in an intensity ratio of the light waves branched at the optical branching part or an intensity ratio of the light waves combined at the optical combining part, by the signal electrode.
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公开(公告)号：US20190025616A1
公开(公告)日：2019-01-24
申请号：US15755764
申请日：2016-09-27
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Toshio KATAOKA , Junichiro ICHIKAWA
CPC classification number: G02F1/035 , G02F1/011 , G02F1/0123 , G02F1/225 , G02F2201/128
Abstract: Provided is an optical waveguide device in which destabilization of a DC bias which is applied to an optical waveguide, due to a bias electrode picking up electric noise, is reduced and an operating characteristic is stable.An optical waveguide device includes: a substrate having an electro-optic effect; an optical waveguide formed on the substrate; a modulation electrode for applying an electric field corresponding to a modulation signal to the optical waveguide; and a bias electrode for applying an electric field corresponding to a DC bias to the optical waveguide, in which in order to reduce capture of electric noise by the bias electrode, with respect to at least a part of the bias electrode, a plurality of electrode portions (b11, b12) are formed in at least one (B1) of the pair of electrodes by folding back one electric line.
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公开(公告)号：US20180287274A1
公开(公告)日：2018-10-04
申请号：US15906511
申请日：2018-02-27
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Toshio KATAOKA , Kei KATOU
CPC classification number: H01R12/52 , G02B6/4274 , G02B6/4279 , G02B6/4281 , G02F1/011 , G02F2201/12
Abstract: There is provided an optical control element module including: an optical control element having an optical waveguide and a control electrode on a substrate and disposed in a housing; an electrical connection part which is electrically connected to the control electrode, extends along a direction intersecting a plane on which the control electrode of the substrate is disposed, and is disposed in the housing; and a wiring substrate which has an input signal line electrically connected to the electrical connection part, at least a part of which is disposed outside the housing, in which impedance of the electrical connection part is set to be smaller than impedance of the input signal line.
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公开(公告)号：US20160291351A1
公开(公告)日：2016-10-06
申请号：US15082003
申请日：2016-03-28
Applicant: Sumitomo Osaka Cement Co., Ltd.
Inventor： Toshio KATAOKA , Norikazu MIYAZAKI , Youichi HOSOKAWA
IPC: G02F1/025
CPC classification number: G02F1/0316 , G02B6/00 , G02B6/12 , G02F1/025 , G02F1/0356 , G02F1/2255 , G02F2201/121
Abstract: [Task] Reduction in crosstalk between signal electrodes.[Means for Resolution] An optical modulator 1 includes a relay substrate 3 including a substrate portion 30, and signal electrodes 31 and 32, and a ground electrode 33 which are provided on the substrate portion 30, and an optical waveguide substrate 4 including an electrode-optical substrate 40, signal electrodes 431 and 432, and an optical waveguide 42 which are provided on the electro-optical substrate 40. Modulation signals are input from ends 31a and 32a on one side of the signal electrodes 31 and 32, the other end 31b of the signal electrode 31 is electrically connected to the signal electrode 431, the other end 32b of the signal electrode 32 is electrically connected to the signal electrode 432, an optical wave, which propagates through the optical waveguide 42, is modulated by the modulation signals which propagate through the signal electrodes 431 and 432, the ground electrode 33 is provided between the signal electrodes 31 and 32, and the relay substrate 3 includes a first adjacent portion 44 at which the signal electrodes 31 and 32 are adjacent to each other, and a through-hole 30g that is provided in the ground electrode 33 at the first adjacent portion 44.
Abstract translation: [解决方法]光调制器1包括：设置在基板部30上的基板部30，信号电极31,32以及接地电极33的中继基板3和具有电极的光波导基板4 - 光学基板40，信号电极431和432以及设置在电光基板40上的光波导42。调制信号从信号电极31,32的一侧的端部31a和32a输入，另一端 信号电极31的31b与信号电极431电连接，信号电极32的另一端32b与信号电极432电连接，通过光波导路42传播的光波被调制 通过信号电极431和432传播的信号，接地电极33设置在信号电极31和32之间，继电器基板3包括第一个广告 信号电极31和32彼此相邻的相邻部分44，以及设置在第一相邻部分44处的接地电极33中的通孔30g。
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