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31.发明授权公开(公告)号：US11333909B2
公开(公告)日：2022-05-17
申请号：US17105615
申请日：2020-11-26
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kousuke Okahashi , Toru Sugamata
Abstract: An optical waveguide element is provided to effectively reduce an optical absorption loss of waveguide light which may occur at an intersecting part between an optical waveguide and an electrode without causing deterioration in optical characteristics and degradation of long-term reliability of the optical waveguide element. The optical waveguide element includes an optical waveguide formed in a substrate, and an electrode controlling optical waves propagated in the optical waveguide and having an intersecting part intersecting the optical waveguide thereabove. A portion of a resin layer is provided between the optical waveguide and the electrode in a portion of the substrate including the intersecting part. A corner of the resin layer on a side of the electrode is constituted to be a curve in a cross section in an extending direction of the electrode.
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公开(公告)号：US20220146902A1
公开(公告)日：2022-05-12
申请号：US17605690
申请日：2020-04-23
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Toru Sugamata
Abstract: An optical modulator includes an optical modulation element having a plurality of signal electrodes, a plurality of signal input terminals, a relay substrate on which a plurality of signal conductor patterns that electrically connect the signal input terminals and the signal electrodes and a plurality of ground conductor patterns are formed, and a housing. A signal input side and signal output side of the relay substrate face each other in a plan view, and electromagnetic wave propagation suppressing units that are made of a material that absorbs electromagnetic waves and have a height protruding from a surface of the relay substrate are provided, along at least one side of an end portion of the signal input side and an end portion of the signal output side in the plan view.
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公开(公告)号：US20220100010A1
公开(公告)日：2022-03-31
申请号：US17490590
申请日：2021-09-30
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Yu KATAOKA , Shingo TAKANO , Norikazu MIYAZAKI
IPC: G02F1/035
Abstract: An optical waveguide element includes a substrate and an optical waveguide that is disposed on the substrate. The optical waveguide has an effective refractive index change portion in which an effective refractive index of the optical waveguide related to a fundamental mode A parallel to a plane of polarization of a light wave propagated through the optical waveguide changes according to propagation of the light wave. In the effective refractive index change portion, a cross-sectional shape of the optical waveguide which is perpendicular to a propagation direction of the light wave is set such that the effective refractive index of the optical waveguide related to the fundamental mode A is higher than an effective refractive index of the optical waveguide related to another fundamental mode B perpendicular to the fundamental mode A.
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34.发明授权公开(公告)号：US11289690B2
公开(公告)日：2022-03-29
申请号：US16364285
申请日：2019-03-26
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kouji Oono , Satoru Oshitari , Masataka Oyama
IPC: H01M4/131 , H01M4/04 , H01M4/505 , H01M4/525 , H01M10/0525
Abstract: An electrode material including a carbonaceous-coated electrode active material having primary particles of an electrode active material, secondary particles that are aggregates of the primary particles, and a carbonaceous film that coats the primary particles of the electrode active material and the secondary particles that are the aggregates of the primary particles, in which, in the electrode material, when ten random 180 nm×180 nm views are observed using an electron microscope at a magnification of 100,000 times, the number of free carbon aggregates is three or less, and the number of protrusions twice or more as thick as the carbonaceous film is three or less.
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公开(公告)号：US11228035B2
公开(公告)日：2022-01-18
申请号：US17030872
申请日：2020-09-24
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Satoru Oshitari , Kouji Oono , Tsutomu Nozoe
IPC: H01M4/58 , H01M4/36 , H01M4/587 , H01M10/0525 , H01M4/02
Abstract: A positive electrode material for a lithium ion secondary battery includes an olivine-type phosphate-based compound represented by General Formula LixAyDzPO4 and carbon, and, in transmission electron microscopic observation of a cross section of a secondary particle that is an agglomerate of primary particles of the olivine-type phosphate-based compound, a 300-point average value of filling rates of the carbon that fills insides of voids having a diameter of 5 nm or larger that are formed by the primary particles is 30 to 70%. A is any one of Co, Mn, Ni, Fe, Cu, and Cr, D is any one of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, and Y, and x, y, and z satisfy 0.9
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Patent Agency Ranking
公开(公告)号：US20210373408A1
公开(公告)日：2021-12-02
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：US11187959B2
公开(公告)日：2021-11-30
申请号：US16911573
申请日：2020-06-25
Applicant: Sumitomo Osaka Cement Co., Ltd.
Inventor： Toru Sugamata
Abstract: To provide a highly-reliable low-cost small optical modulator in which temperature drift is suppressed and an optical transmission device using the same. An optical modulator including an optical waveguide substrate 1 on which an optical waveguide is formed, a signal electrode which is provided on the optical waveguide substrate and applies an electric field to the optical waveguide, a termination substrate 3 provided with a termination resistor that terminates the signal electrode, and a housing 6 in which the optical waveguide substrate and the termination substrate are mounted, in which, in order to suppress conduction of heat generated from the termination resistor to the optical waveguide substrate through the housing, a groove 8 is formed in the housing 6 between the termination substrate 3 and the optical waveguide substrate 1.
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公开(公告)号：US11141363B2
公开(公告)日：2021-10-12
申请号：US16476109
申请日：2018-01-05
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Tetsuro Itagaki , Hirokazu Matsushita , Norito Morishita
Abstract: In an ultraviolet-shielding particle coated with silicon oxide of the present invention, a surface of the ultraviolet-shielding particle is coated with a silicon oxide coat, at least one functional group selected from the group consisting of an alkyl group, an alkenyl group, and a cycloalkyl group is present on a surface of the silicon oxide coat, and a content of the functional group is 0.0001% by mass or more and 0.30% by mass or less.
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公开(公告)号：US20210305619A1
公开(公告)日：2021-09-30
申请号：US17033149
申请日：2020-09-25
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kouji OONO
IPC: H01M10/0525 , H01M10/058 , H01M4/66 , H01M10/0565 , H01M4/36 , H01M4/62 , H01M4/58 , H01M4/136
Abstract: The lithium ion polymer battery includes: a positive electrode that includes at least a positive electrode material which is capable of desorbing lithium ions when the battery is charged; and a negative electrode which includes a current collector and an ionic conductive polymer layer which is provided on the current collector.
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公开(公告)号：US20210305618A1
公开(公告)日：2021-09-30
申请号：US17033109
申请日：2020-09-25
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Satoru OSHITARI , Kouji OONO , Tsutomu NOZOE
Abstract: The positive electrode material for lithium ion secondary batteries includes a mixture including a positive electrode active material in which a length of a longest side of a primary particle is 1 nm or more and 1000 nm or less and a NASICON-type compound in which a length of a longest side of a primary particle is 1 nm or more and 1000 nm or less.
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