Patents Assigned to Sumitomo Osaka Cement Co., Ltd.
  • Publication number: 20250143985
    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 ?E 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.
    Type: Application
    Filed: March 28, 2023
    Publication date: May 8, 2025
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventor: Syunsuke SUMA
  • Publication number: 20250136789
    Abstract: A dispersion liquid including metal oxide particles surface-modified with a surface-modifying material, and a hydrophobic solvent, where said particles have a refractive index of 1.70 or higher and 2.00 or lower, the surface-modifying material includes a silane compound and a silicone compound, the silane compound includes a methyl group-containing silane compound, and if the dispersion liquid and methyl phenyl silicone are mixed so a total mass ratio of said particles and the surface-modifying material to methyl phenyl silicone is 7:93, thereby obtaining a cured product having a thickness of 1 mm, a scattering fraction at a wavelength of 450 nm of the cured product is 17% or more and 38% or less, and a value obtained by dividing the scattering fraction at a wavelength of 450 nm of the cured product by a scattering fraction at a wavelength of 600 nm of the cured product is 1.25 or higher.
    Type: Application
    Filed: March 28, 2023
    Publication date: May 1, 2025
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Ryo TAKEDA, Tomomi ITO, Kenji HARADA
  • Patent number: 12280578
    Abstract: A method for repairing an electrostatic chuck device that is formed by bonding an electrostatic chuck member made of ceramics and a temperature-controlling base member made of metal with a first adhesive layer sandwiched therebetween is provided. The method includes a step of repairing the first adhesive layer that has been eroded by using a cold-curing adhesive.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: April 22, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Keisuke Maeda, Yuuki Kinpara
  • Patent number: 12265310
    Abstract: An optical waveguide device includes a substrate, an optical waveguide formed on the substrate, two electrodes disposed at positions sandwiching the optical waveguide from both sides in a plane of the substrate; and a dielectric layer covering a top of the optical waveguide, wherein the dielectric layer extends in a width direction of the optical waveguide to an extent including edges of the two electrodes, facing the optical waveguide, and is disposed to partially cover each of the two electrodes.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: April 1, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Yu Kataoka, Kosuke Okahashi
  • Publication number: 20250101231
    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).
    Type: Application
    Filed: February 24, 2023
    Publication date: March 27, 2025
    Applicants: SUMITOMO OSAKA CEMENT CO., LTD., Kyoto University
    Inventors: Kazuo TANAKA, Masayuki GON, Yoshiki CHUJO, Ryo TAKEDA, Tomomi ITO, Kenji HARADA
  • Publication number: 20250102840
    Abstract: An optical waveguide device includes a substrate, an optical waveguide of a rib type formed on the substrate, and modulation electrodes disposed on the substrate to interpose the optical waveguide of the rib type, in which the modulation electrodes include a plurality of segment electrodes disposed in proximity to the optical waveguide of the rib type and disposed along the optical waveguide of the rib type, and a signal transmission portion electrically connected to the segment electrode and transmitting a modulation signal, a thickness of the signal transmission portion is larger than a thickness of the segment electrode, a buffer layer is disposed between the signal transmission portion and the optical waveguide of the rib type in at least a portion where the signal transmission portion crosses the optical waveguide of the rib type, and no buffer layer is disposed between the substrate and the segment electrode.
    Type: Application
    Filed: September 25, 2024
    Publication date: March 27, 2025
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Yu KATAOKA, Kosuke OKAHASHI
  • Patent number: 12259631
    Abstract: Provided is an optical control element that can minimize an optical path difference between branched waveguides while reducing a difference in structure between the branched waveguides by disposing an input portion and an output portion of an optical waveguide on the same side of a substrate on which the optical waveguide is formed.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: March 25, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Yu Kataoka
  • Patent number: 12249492
    Abstract: An electrostatic chuck device includes: an electrostatic chuck plate having a dielectric substrate having a placement surface on which a wafer is placed and an adsorption electrode positioned in the dielectric substrate; a metal base supporting the electrostatic chuck plate from a back surface side opposite to the placement surface; and a focus ring installed on an outer peripheral portion of the electrostatic chuck plate and surrounding the placement surface. The electrostatic chuck plate has a ring adsorption region which is adsorbed to the focus ring and is located on a surface positioned on the same side as the placement surface and has a base adsorption region which is adsorbed to the metal base and located on a back surface opposite to the placement surface.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: March 11, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Masaki Hirayama, Tetsuro Itagaki
  • Publication number: 20250069931
    Abstract: Provided is an electrostatic chuck member including: a dielectric substrate having a placement surface on which a sample is mounted, wherein the dielectric substrate comprises a first supporting plate and a second supporting plate which are stacked in a thickness direction thereof; and an adsorption electrode embedded in the dielectric substrate, in which a gas flow path is provided by a recessed groove, which is provided between the first supporting plate and the second supporting plate which have surfaces facing each other, wherein the recessed groove is formed in at least one of the surfaces thereof and is covered with the other thereof, a dimension of the gas flow path in a height direction is 90 ?m or more and 300 ?m or less, and a width dimension of the gas flow path is 500 ?m or more and less than 3000 ?m.
    Type: Application
    Filed: December 9, 2022
    Publication date: February 27, 2025
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Satoyoshi INUI, Taku ICHIYOSHI, Takeshi OTSUKA
  • Publication number: 20250041796
    Abstract: A method in which carbon dioxide can be efficiently fixed, calcium carbonate that is a valuable can be efficiently produced from carbon dioxide, and a waste gypsum board can be effectively recycled without being wasted as it is by using the waste gypsum board for fixing carbon dioxide. This method includes: bringing a first solution containing an alkali metal hydroxide and gas containing carbon dioxide into contact with each other to produce a second solution containing an alkali metal salt; and bringing the second solution and a gypsum-containing material into contact with each other to produce calcium carbonate.
    Type: Application
    Filed: September 26, 2022
    Publication date: February 6, 2025
    Applicants: SUMITOMO OSAKA CEMENT CO., LTD., YAMAGUCHI UNIVERSITY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Sadato KIKUCHI, Shogo NAKAMURA, Risa OIZUMI, Masayoshi KONISHI, Mitsuru HIGA, Ikuo TANIGUCHI
  • Patent number: 12210232
    Abstract: An optical modulator includes a relay substrate having signal conductor patterns that connect input signal terminals and signal electrodes of an optical modulation element and ground conductor patterns, and a housing that accommodates the optical modulation element and the relay substrate. Regarding at least one signal conductor pattern, the two ground conductor patterns sandwiching the signal conductor pattern are formed in an asymmetrical shape in a plan view in a rectangular connection area including a signal connection portion at which the signal conductor pattern and the input signal terminal are connected. The connection area is centered on the at least one signal conductor pattern in a width direction, and has a width equal to a distance to the nearest adjacent signal conductor pattern and a height equal to a distance from an end of the signal connection portion farthest from a signal input side to the signal input side.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: January 28, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Toru Sugamata
  • Patent number: 12204185
    Abstract: In order to provides an optical waveguide element and an optical modulator that can prevent the damage to the substrate and the deterioration of the properties of the substrate that may occur due to the stress, by reducing the influence of stress on the substrate by the buffer layer, the optical waveguide 1 is provided with a substrate 5 having an electro-optical effect; an optical waveguide 10 formed on the substrate 5; a first buffer layer 9a provided on the substrate 5; and a second buffer layer 9b provided under the substrate 5, wherein the first buffer layer 9a and the second buffer layer 9b are composed of substantially the same material and have substantially the same thickness, and the first buffer layer 9a and the second buffer layer 9b are formed to be in contact with an upper surface and lower surface of the substrate 5, respectively.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: January 21, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kosuke Okahashi, Shingo Takano
  • Patent number: 12197052
    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.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 14, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Yu Kataoka, Norikazu Miyazaki
  • Publication number: 20250014933
    Abstract: Provided is an electrostatic chuck device including: an electrostatic chuck plate including a dielectric substrate that includes a placement surface on which a sample is mounted and an adsorption electrode that is positioned inside the dielectric substrate; and a base that supports the electrostatic chuck plate from a side opposite to the placement surface, in which in the electrostatic chuck plate, a first through-hole through which gas is supplied to the placement surface is provided, a porous body that allows passage of the gas is inserted into the first through-hole, a first adhesive layer that bonds an inner peripheral surface of the first through-hole and an outer peripheral surface of the porous body to each other is provided between the inner peripheral surface and the outer peripheral surface, and a thickness dimension of the first adhesive layer is 0 mm or more and 0.15 mm or less, at least in a region of 0.1 mm from the placement surface.
    Type: Application
    Filed: November 7, 2022
    Publication date: January 9, 2025
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Keisuke MAEDA, Norito MORISHITA, Tetsuro ITAGAKI, Yoshiki YOSHIOKA
  • Publication number: 20250013085
    Abstract: An object of the present invention is to provide an optical waveguide device that prevents peeling of an optical waveguide substrate and that suppresses a propagation loss of a light wave of an optical waveguide. An optical waveguide device of the present invention includes an optical waveguide substrate 1 on which an optical waveguide 10 is formed, a reinforcing substrate 11 disposed under the optical waveguide substrate, a lower buffer layer B1 disposed between the optical waveguide substrate and the reinforcing substrate to join both of the optical waveguide substrate and the reinforcing substrate, and an upper buffer layer B2 disposed on an upper side of the optical waveguide substrate in contact with the optical waveguide substrate, in which a thickness d2 of the upper buffer layer is formed to be smaller than a thickness d1 of the lower buffer layer (d2<d1).
    Type: Application
    Filed: March 30, 2022
    Publication date: January 9, 2025
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kosuke OKAHASHI, Shingo TAKANO
  • Patent number: 12189265
    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.
    Type: Grant
    Filed: April 23, 2020
    Date of Patent: January 7, 2025
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Toru Sugamata
  • Publication number: 20240429032
    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.
    Type: Application
    Filed: September 6, 2024
    Publication date: December 26, 2024
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Masaki HIRAYAMA, Tetsuro ITAGAKI
  • Patent number: 12153295
    Abstract: An optical waveguide element includes a substrate having an electro-optic effect, an optical waveguide formed in the substrate, and a control electrode arranged on the substrate to modulate a light wave propagating through the optical waveguide. The control electrode includes a signal electrode and a ground electrode. The signal electrode and the ground electrode are arranged along a modulation effect portion of the optical waveguide that performs modulation. In a shape of a bottom surface of the ground electrode facing the substrate, a slit separating the ground electrode into a first ground electrode close to the signal electrode and a second ground electrode far from the signal electrode is formed in a range corresponding to the modulation effect portion.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: November 26, 2024
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Masayuki Motoya, Toshio Kataoka
  • Patent number: 12147097
    Abstract: An optical modulator includes: an optical modulation element that is configured to generate two modulated light beams, each of which is modulated by two sets of electrical signals, and that includes a plurality of signal electrodes; a plurality of signal input terminals, each of which inputs an electrical signal; a relay substrate on which a plurality of signal conductor patterns and a plurality of ground conductor patterns are formed, the relay substrate being configured to propagate the two sets of electrical signals by two pairs of the adjacent signal conductor patterns; and a housing, in which the at least two signal conductor patterns including at least one parts mounting part including electrical circuit elements are configured such that first signal propagation directions, which are signal propagation directions at the parts mounting parts, are different from each other.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: November 19, 2024
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Toru Sugamata
  • Patent number: 12130536
    Abstract: To provide an optical modulator in which a plurality of Mach-Zehnder type optical waveguides are integrated, which can be driven at a low voltage, and in which the occurrence of a crosstalk phenomenon is suppressed. Provided is an optical modulator including a substrate 1 having an electro-optic effect, and an optical waveguide 10 and a control electrode that are formed on the substrate, in which the optical waveguide has a structure in which a plurality of Mach-Zehnder type optical waveguides are disposed in parallel, the control electrode has a GSSG type differential electrode structure in which two signal electrodes S are disposed between two ground electrodes G for one of the Mach-Zehnder type optical waveguides, and a crosstalk suppressing unit that suppresses signal crosstalk is provided in the ground electrode sandwiched between adjacent Mach-Zehnder type optical waveguides, so that optical modulator can be driven at a low voltage, and in which the occurrence of a crosstalk phenomenon is suppressed.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: October 29, 2024
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Kosuke Okahashi, Masayuki Motoya