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公开(公告)号：US20250143985A1
公开(公告)日：2025-05-08
申请号：US18836757
申请日：2023-03-28
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Syunsuke SUMA
Abstract: Surface-modified zinc oxide particles are surface-modified zinc oxide particles where particle surfaces of zinc oxide particles are treated with a hydrolyzable surface treatment agent, in which a color difference ΔE before and after irradiation with simulated sunlight is 4.0 or lower, and an oil absorption amount of cyclopentasiloxane is 20 mL/100 g or less.
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公开(公告)号：US20250101231A1
公开(公告)日：2025-03-27
申请号：US18730317
申请日：2023-02-24
Applicant: SUMITOMO OSAKA CEMENT CO., LTD. , Kyoto University
Inventor： Kazuo TANAKA , Masayuki GON , Yoshiki CHUJO , Ryo TAKEDA , Tomomi ITO , Kenji HARADA
Abstract: A pigment of the present invention is a compound represented by General Formula (1) or General Formula (2) (in the above-described formulae, M is Sn or Ge, X is C or N, R1 is an alkyl group or a phenyl group, Y1 and Y2 are each hydrogen, a halogen group, a methyl group, an alkoxy group, a phenyl group, a diphenylamide group, a thiophenyl group, or a phenylethynyl group, and Z is a single bond or represented by Formula (3), where R2 is an alkyl group or a phenyl group).
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公开(公告)号：US12197052B2
公开(公告)日：2025-01-14
申请号：US17593931
申请日：2019-09-27
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Yu Kataoka , Norikazu Miyazaki
Abstract: In order to provide an optical waveguide element that is capable of reducing coupling loss at a coupling portion with an optical fiber and of reducing propagation loss in an optical waveguide, the optical waveguide element comprises a supporting substrate and a waveguide layer consisting of a material having an electro-optic effect stacked on the supporting substrate, wherein a rib portion for forming an optical waveguide is provided protruding on an upper surface of the waveguide layer; a groove portion is formed on an upper surface of the supporting substrate directly below a part of the rib portion; and the groove portion is filled with a material having an effective refractive index comparable to that of the waveguide layer.
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公开(公告)号：US12119212B2
公开(公告)日：2024-10-15
申请号：US17999833
申请日：2021-05-27
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Masaki Hirayama , Tetsuro Itagaki
IPC: H01J37/32 , H01L21/683
CPC classification number: H01J37/32724 , H01J37/32082 , H01J37/32568 , H01J37/32577 , H01L21/6833 , H01J37/32541 , H01J2237/2007
Abstract: A wafer support device includes a dielectric substrate and an RF electrode provided in the dielectric substrate. The RF electrode is divided into a plurality of zone electrodes arranged in a planar direction of the dielectric substrate. The wafer support device has: a short-circuit member interconnecting the plurality of zone electrodes; and a main power supply rod connected to the short-circuit member from a back side of the dielectric substrate.
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5.发明公开公开(公告)号：US20240319558A1
公开(公告)日：2024-09-26
申请号：US18258272
申请日：2021-12-23
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Toru Sugamata
CPC classification number: G02F1/2252 , G02F1/0121 , G02F1/212 , G02F1/2255
Abstract: In an optical waveguide device having a plurality of intersections between a convex optical waveguide and a signal electrode, the generation of disturbance modulation at the intersections is effectively reduced, thereby achieving good operating characteristics. An optical waveguide device includes a substrate on which an optical waveguide is formed, an intermediate layer formed on the substrate, and a signal electrode and a ground electrode formed on the intermediate layer, in which the optical waveguide includes a protruding portion extending on the substrate, the signal electrode has an action portion that extends along the optical waveguide and controls a light wave propagating through the optical waveguide, and an intersection that crosses over the optical waveguide, and the intermediate layer is formed such that a thickness at the intersection is thicker than a thickness at the action portion.
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Patent Agency Ranking
公开(公告)号：US20240310584A1
公开(公告)日：2024-09-19
申请号：US18028466
申请日：2021-09-30
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Hideki ICHIMEI , Kei KATO
Abstract: An object is to provide an optical device for which size reduction can be achieved, and for which an increase in manufacturing cost is suppressed. An optical device of the present invention is an optical device in which an optical component is accommodated inside a case, the optical device including an optical component fixing member OF on which the optical component is mounted, in which a side surface portion CS and a bottom surface portion CB of the case are joined, and the optical component fixing member OF abuts on the side surface portion CS and is joined to the bottom surface portion CB.
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公开(公告)号：US12074050B2
公开(公告)日：2024-08-27
申请号：US16497743
申请日：2018-03-26
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Nobuhiro Hidaka , Naoto Kimura
IPC: C04B35/645 , C04B35/117 , C04B35/626 , C04B35/628 , H01J37/32 , H01L21/683
CPC classification number: H01L21/6833 , C04B35/117 , C04B35/62625 , C04B35/62635 , C04B35/628 , C04B35/645 , H01J37/32715 , C04B35/62655 , C04B2235/3217 , C04B2235/3826 , C04B2235/656 , C04B2235/786 , C04B2235/80 , C04B2235/87 , C04B2235/9669 , H01J37/32642 , H01J2237/2007
Abstract: A composite sintered body is a ceramic composite sintered body which includes metal oxide which is a main phase, and silicon carbide which is a sub-phase, in which crystal grains of the silicon carbide are dispersed in crystal grains of the metal oxide and at crystal grain boundaries of the metal oxide, and a proportion of the crystal grains of the silicon carbide dispersed in the crystal grains of the metal oxide is 25% or more in an area ratio with respect to a total crystal grains of the silicon carbide.
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8.发明公开公开(公告)号：US20240231134A1
公开(公告)日：2024-07-11
申请号：US18281107
申请日：2021-09-30
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Shoutarou HIRATA , Shingo TAKANO
CPC classification number: G02F1/0356 , G02F1/0311 , G02F1/0327 , G02F2201/063
Abstract: An object is to provide an optical waveguide device including a dielectric layer covering an optical waveguide, in which occurrence of a problem such as peeling or cracking of the dielectric layer is suppressed. An optical waveguide device of the present invention includes an optical waveguide 2 formed on a substrate 1, and a dielectric layer IL covering the optical waveguide, in which the optical waveguide 2 is a rib type optical waveguide, and at least a part of a side surface of the rib type optical waveguide along a longitudinal direction has a slope shape formed with a curved surface (R6).
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公开(公告)号：US20240210784A1
公开(公告)日：2024-06-27
申请号：US18508170
申请日：2023-11-13
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Yuji Hayami , Kosuke Okahashi
Abstract: An optical waveguide element includes an optical waveguide arranged on a main surface of an optical substrate, and a control electrode configured to control light waves propagating through the optical waveguide. The control electrode includes a first control electrode and a second control electrode facing each other across the optical waveguide on the main surface of the optical substrate. The first control electrode and the second control electrode each include a common electrode extending along the optical waveguide, a plurality of segment electrodes arranged closer to the optical waveguide than the common electrode and divided along an extending direction of the optical waveguide, and a plurality of connection electrodes connecting each of the plurality of segment electrodes to the common electrode. A low dielectric layer having a relative dielectric constant lower than a relative dielectric constant of the optical substrate is arranged between the common electrode and the optical substrate.
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公开(公告)号：US20240176071A1
公开(公告)日：2024-05-30
申请号：US18283764
申请日：2022-03-30
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Junji ARAI , Yumi MURATA , Yuki KUGIMOTO
CPC classification number: G02B6/122 , G02B2006/12142
Abstract: Provided is an optical waveguide element whereby it is possible to prevent dropout of an optical component due to internal stress that occurs in a joint between the optical component and an optical waveguide member including a substrate on which an optical waveguide is formed, and to simplify a manufacturing step pertaining to polishing of a joining surface. An optical waveguide element comprising: an optical waveguide member including a substrate 1 on which an optical waveguide is formed; and an optical component 3 that is fixed to an optical waveguide member end surface (B0) on which an input part or an output part of the optical waveguide is disposed, and that transmits input light inputted to the input part or transmits output light outputted from the output part, wherein the optical waveguide element is characterized in that portions (B1, B2) having greater roughness than the end surface (B0) of the optical waveguide member including the input part or the output part are provided in at least a portion of the optical waveguide member, which is the portion thereof to which the optical component 3 is fixed.
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