公开(公告)号：US20190014657A1

公开(公告)日：2019-01-10

申请号：US15770649

申请日：2016-09-15

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Norikazu MIYAZAKI ,  Toru SUGAMATA

IPC: H05K1/02 ,  H05K1/11 ,  G02F1/225

CPC classification number: H05K1/0271 ,  G02F1/035 ,  G02F1/2255 ,  G02F2001/212 ,  H05K1/028 ,  H05K1/111

Abstract: To suppress peeling-off or cracks of a solder-fixing portion, which are caused by vibration during transportation or operation, in an optical modulator with FPC, thereby suppressing deterioration of radio-frequency characteristics of a signal path in an effective manner at low cost.An optical modulator 100 includes a flexible printed circuit (106) that performs electrical connection with a circuit substrate. The flexible printed circuit has a substantially quadrilateral shape. In the flexible printed circuit, a pad (210 and the like), which is electrically connected to the circuit substrate, is provided along one side of the substantial quadrilateral. In addition, in the flexible printed circuit, signal patterns (220 and the like), which are connected to signal lead pins (120 and the like) for signal transmission which is provided in the optical modulator, are provided in another side opposite to the one side. In addition, the flexible printed circuit includes an additional fixing portion (240 and the like) and/or a notched portion (810 and the like) which are configured to increase a natural vibration frequency of the flexible printed circuit in a state of being connected to the signal lead pin and the circuit substrate.

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

IPC: G02B26/00 ,  G02F1/03 ,  G02F1/035 ,  G02B26/02 ,  G02F1/01 ,  G02F1/025 ,  G02F1/313

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.

公开(公告)号：US10151959B2

公开(公告)日：2018-12-11

申请号：US15657222

申请日：2017-07-24

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Norikazu Miyazaki ,  Toru Sugamata

IPC: G02F1/225 ,  H05K1/02 ,  H05K1/11 ,  G02F1/01 ,  G02F1/21 ,  H05K3/30 ,  H05K3/36

Abstract: An optical modulator including a flexible printed circuit performing an electrical connection with an external circuit substrate, in which the flexible printed circuit includes a plurality of first pads and the like provided on one surface of the flexible printed circuit along one side of the flexible printed circuit, a plurality of second pads and the like provided on the other surface of the flexible printed circuit at locations that respectively correspond to the plurality of first pads, and a plurality of metal films and the like provided at locations that respectively correspond to the first pads on a side surface of the flexible printed circuit along the one side of the flexible printed circuit.

公开(公告)号：US20180307116A1

公开(公告)日：2018-10-25

申请号：US15514505

申请日：2016-03-10

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Tokutaka HARA ,  Norikazu MIYAZAKI

IPC: G02F1/225 ,  G02F1/01

CPC classification number: G02F1/225 ,  G02F1/0123 ,  G02F2001/212 ,  G02F2201/12 ,  G02F2202/20 ,  G02F2203/21

Abstract: Provided is an optical modulator in which degradation of an extinction ratio is suppressed and a temperature drift phenomenon is suppressed.An optical modulator includes: a substrate having an electro-optic effect; an optical waveguide formed on the substrate; and a control electrode for controlling light waves propagating through the optical waveguide, in which the optical waveguide has one or more Mach-Zehnder type optical waveguides (A1 to A3 and B1 to B3), the control electrode has DC electrodes (C1 to C4) which apply DC bias, a feeder electrode which feeds DC bias to the DC electrode crosses one of two branched waveguides of the Mach-Zehnder type optical waveguide, and a first dummy electrode (a dotted line E5 or E6) is provided at a specific position on the other one of the two branched waveguides, which is a specific position symmetrical in relation to a position at which the feeder electrode crosses the one of the two branched waveguides.

公开(公告)号：US20180284351A1

公开(公告)日：2018-10-04

申请号：US15938145

申请日：2018-03-28

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Yuu KATAOKA ,  Yoichi HOSOKAWA ,  Norikazu MIYAZAKI

IPC: G02B6/28 ,  G02B6/122

CPC classification number: G02B6/2804 ,  G02B6/1228

Abstract: An optical waveguide device includes a substrate in which an optical waveguide is formed. The optical waveguide has a Y-branched structure in which light beams propagating through a main waveguide are branched into two parts, and a three-branched structure in which the optical waveguide is branched into three waveguides including the main waveguide and two sub-waveguides on both sides of the main waveguide at a front stage of the Y-branched structure. The main waveguide includes a linear waveguide portion in which a waveguide width is constant and a tapered waveguide portion in which the waveguide width gradually increases between the three-branched structure and the Y-branched structure.

公开(公告)号：US20180284349A1

公开(公告)日：2018-10-04

申请号：US15893742

申请日：2018-02-12

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Tokutaka Hara ,  Toshio Kataoka

IPC: G02B6/26 ,  G02B6/27

CPC classification number: G02B6/262 ,  G02B6/2773

Abstract: An optical element module includes an optical modulation element having first and second optical modulator units, a polarization combining means for combining two modulated lights which are emitted from the first and second optical modulator units, by making planes of polarization orthogonally cross each other; a housing which houses the optical modulation element and the polarization combining means; and a lens holder which holds a collimating lens which is disposed between the polarization combining means and an optical fiber, with the lens holder further holding the optical fiber. The optical element module is configured by joining the housing and the lens holder together by welding. In the lens holder, an outer diameter of a welding place is smaller than an outer diameter of a part which holds the collimating lens.

公开(公告)号：US20180275481A1

公开(公告)日：2018-09-27

申请号：US15927496

申请日：2018-03-21

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Minoru SHINOZAKI ,  Toru SUGAMATA

IPC: G02F1/225 ,  G02B26/00 ,  H01S5/022 ,  G02B6/12 ,  G02F1/03

CPC classification number: G02F1/2255 ,  G02B6/12007 ,  G02B26/001 ,  G02F1/0121 ,  G02F1/0305 ,  G02F2001/0113 ,  G02F2001/212 ,  G02F2201/505 ,  G02F2203/15 ,  H01S5/02276

Abstract: An optical modulator includes an optical modulation element that is accommodated in a housing. A plurality of lead pins, which are electrically connected to the optical modulation element through wire bonding, are fixed to a lateral wall of the housing. Each of the plurality of lead pins includes a portion that protrudes into an inner space (inner surface side) of the housing. A resonance suppressing structure (for example, a concave portion), which is configured to suppress resonance between the lead pins, is provided in a lateral wall portion to which the plurality of lead pins are fixed.

公开(公告)号：US20180248188A1

公开(公告)日：2018-08-30

申请号：US15710553

申请日：2017-09-20

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Takao KITAGAWA ,  Hirofumi YASUMIISHI

IPC: H01M4/58 ,  H01M4/525 ,  H01M4/505 ,  H01M10/0525

CPC classification number: H01M4/5825 ,  C01B25/30 ,  H01M4/131 ,  H01M4/136 ,  H01M4/364 ,  H01M4/366 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  Y02T10/7011

Abstract: An electrode for a lithium-ion secondary battery including an electrode mixture layer made of a mixture including a first electrode active material including a compound represented by General Formula LiaAbPO4, a second electrode active material including at least one compound selected from the group consisting of compounds represented by LicBdO2, a lithium cobaltate-based compound, a lithium manganate-based compound, and a lithium nickelate-based compound, a conductive auxiliary agent, and a binder, in which a thermal conductivity of the electrode for the lithium-ion secondary battery, which is derived from Expression (1) using a thermal diffusivity, a constant pressure specific heat, and an electrode density of the electrode for a lithium-ion secondary battery, is 0.9 W/(m·K) or more.

公开(公告)号：US09972757B2

公开(公告)日：2018-05-15

申请号：US14383244

申请日：2013-03-08

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Yasuyuki Kurino ,  Takeshi Otsuka ,  Yoichi Sato ,  Takeru Yamaguchi ,  Kenji Harada

IPC: H01L33/56 ,  C01G25/02 ,  B82Y30/00 ,  C01G9/02 ,  C01G23/053 ,  C09C1/36 ,  C09C1/04 ,  C09C1/30 ,  C08G77/398 ,  H01L33/50 ,  C09D183/04 ,  H01L23/29 ,  C08G77/20 ,  C08K3/22 ,  B82Y20/00

CPC classification number: H01L33/56 ,  B82Y20/00 ,  B82Y30/00 ,  C01G9/02 ,  C01G23/0536 ,  C01G25/02 ,  C01P2004/64 ,  C01P2006/22 ,  C08G77/20 ,  C08G77/398 ,  C08K2003/2241 ,  C08K2003/2244 ,  C09C1/043 ,  C09C1/3081 ,  C09C1/3684 ,  C09D183/04 ,  H01L23/293 ,  H01L33/501 ,  H01L33/507 ,  H01L2924/0002 ,  Y10T428/2982 ,  C08K3/22 ,  H01L2924/00

Abstract: There is provided a surface-modified-metal-oxide-particle material including surface-modified-metal-oxide-particles obtained by performing surface modification on metal oxide particles with a surface-modifying material, in which the surface-modifying material includes a predetermined silicone compound, an average primary particle diameter of the metal oxide particles is 3 nm to nm, viscosity at 25° C. is 1000 Pa·s or less, and transmittance of light at a wavelength of 400 nm to 800 nm and a thickness of 1 mm is 60% or greater, a composition for sealing optical semiconductor element, and an optical semiconductor device using the same.

公开(公告)号：US09966595B2

公开(公告)日：2018-05-08

申请号：US15280488

申请日：2016-09-29

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Hirofumi Yasumiishi ,  Ryuuta Yamaya

IPC: H01M4/13 ,  H01M4/136 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/36 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/04 ,  H01M4/62 ,  H01M4/58

CPC classification number: H01M4/136 ,  H01M4/0471 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/5825 ,  H01M4/587 ,  H01M4/625 ,  H01M10/0525 ,  H01M2220/30

Abstract: An electrode material includes inorganic particles of LiFexMn1-x-yMyPO4 and a carbonaceous film coating surfaces of the inorganic particles, and volume of micropores having micropore diameter of 2 to 10 nm is 3 to 11 cm3/g. A method for manufacturing an electrode material includes immersing the inorganic particles in an aqueous solution having pH of 7.0 to 10.0; producing a slurry including the inorganic particles, a carbonaceous film precursor, and water; producing a dried substance of the slurry by drying the slurry; and calcinating the dried substance in a non-oxidative atmosphere of 500° C. to 1,000° C., and an amount of the carbonaceous film precursor blended into 100 parts by mass of the inorganic particles when converted to a carbon element is 1.0 to 5.0 parts by mass. An electrode includes the electrode material. A lithium-ion secondary battery includes a cathode; an anode; and a non-aqueous electrolyte, the cathode being the electrode.