Patents Assigned to Sumitomo Osaka Cement Co., Ltd.
  • Publication number: 20220146901
    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: Application
    Filed: August 15, 2019
    Publication date: May 12, 2022
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu MIYAZAKI, Kosuke OKAHASHI, Masayuki MOTOYA
  • Patent number: 11325840
    Abstract: A zinc oxide powder in which a BET specific surface area of the powder is 8 m2/g or more and 65 m2/g or less, an apparent specific volume measured by a loose packing method of the powder is 1.0 mL/g or more and 7.5 mL/g or less, and a value indicated by (the apparent specific volume measured by the loose packing method/an apparent specific volume measured by a tapping method), which is obtained by dividing the apparent specific volume (mL/g) measured by the loose packing method by the apparent specific volume (mL/g) measured by the tapping method of the powder, is 1.50 or more and 2.50 or less.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tadashi Neya, Masahiro Nobe, Syunsuke Suma
  • Patent number: 11328948
    Abstract: An electrostatic chuck device (1) including: an electrostatic chuck part (2) which includes a base material (11) having a mounting surface (11a) on which a plate-like sample W is mounted, and an internal electrostatic attraction electrode (13) which electrostatically attracts the plate-like sample (W) to the mounting surface (11a); a cooling base part (3) which is configured to cool the electrostatic chuck part (2); and an adhesive layer (4) which is interposed therebetween, in which a shape of the mounting surface of the base material (11) includes a concave surface (23) or a convex surface, which is a curved surface that gradually curves from a center (11b) of the mounting surface (11a) toward an outer periphery (11c) of the mounting surface (11a) and includes no inflection point, and an absolute value of a difference between a height of a center of the concave surface (23) or the convex surface from a position of a main surface (3a) of the cooling base part (3) as a reference and a height of an outer perip
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Masaki Ozaki, Norito Morishita
  • Patent number: 11327347
    Abstract: Provided is an optical waveguide element capable of connection such as wire bonding, suppressing usage of gold, and suppressing deterioration of a conductor loss. An optical waveguide element includes a substrate 1 having an electro-optic effect, an optical waveguide 2 formed on the substrate, and a control electrode (30, 31) provided on the substrate and controlling a light wave propagating through the optical waveguide. The control electrode is made of a material other than gold, and the gold is disposed on at least a wire bonding portion 4 of the control electrode.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: May 10, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Yu Nakata, Tetsuya Fujino, Satoshi Oikawa
  • Patent number: 11318572
    Abstract: An electrostatic chuck device (1) including: an electrostatic chuck member (2) formed of ceramics; a temperature control base member (3) formed of metal; and a power supply terminal (16) which is inserted in the temperature control base member (3) and applies a voltage to an electrode for electrostatic attraction (13) which is provided on the electrostatic chuck member (2), the electrode for electrostatic attraction (13) and the power supply terminal (16) are connected with each other via a conductive adhesive layer (17), the conductive adhesive layer (17) contains a carbon fiber and a resin, and the carbon fiber has an aspect ratio of 100 or higher.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 3, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventor: Takashi Sato
  • Publication number: 20220100010
    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.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 31, 2022
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Yu KATAOKA, Shingo TAKANO, Norikazu MIYAZAKI
  • Publication number: 20220102706
    Abstract: A positive electrode material for lithium ion secondary batteries is provided, wherein a ratio (A/B) of an oil absorption amount (A) of powder per unit mass of the material, which is measured using N-methyl-2-pyrrolidone, to a void volume (B) of powder per unit mass of the material is 0.30 or more and 0.85 or less, and a ratio (C/D) of a powder density (C) of the material, which is measured in a powder pressure test at a pressure of 4.5 MPa, to an initial powder density (D) of the material is 1.3 or more and 1.7 or less.
    Type: Application
    Filed: March 29, 2021
    Publication date: March 31, 2022
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tsutomu NOZOE, Toyomasa NAKANO
  • Patent number: 11289690
    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.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 29, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kouji Oono, Satoru Oshitari, Masataka Oyama
  • Patent number: 11254583
    Abstract: A titanium oxide powder of the present invention has a BET specific surface area of 5 m2/g or more and 15 m2/g or less and contains polyhedral-shaped titanium oxide particles having eight or more faces, in which a mass reduction rate in a case of being heated at 800° C. for 1 hour in an air atmosphere is 0.03% by mass or more and 0.5% by mass or less.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 22, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Teppei Yakubo, Tsutomu Nozoe, Tetsuro Itagaki
  • Patent number: 11251422
    Abstract: A method of producing a positive electrode material for lithium-ion secondary batteries, which includes a pyrolyzed carbon coating, the method including a heat treatment step of thermally decomposing an organic compound using a rotary kiln to form a pyrolyzed carbon coating, wherein the organic compound is a carbon source that forms the pyrolyzed carbon coating of a positive electrode material.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: February 15, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Tsutomu Nozoe, Ryuuta Yamaya
  • Patent number: 11245110
    Abstract: The positive electrode material for a lithium ion polymer battery of the present invention is active material particles including core particles represented by General Formula LixAyDzPO4 and the carbonaceous film that coats surfaces of the core particles, wherein a paste including the active material particles has a viscosity of 5,000 mPa·s or less when a viscosity of the paste is measured at a shear rate of 4.0 [1/s], wherein the paste is a mixture of the active material particles, an ion-conductive polymer, a conductive auxiliary agent and a solvent, in which the active material particles, the ion-conductive polymer and the conductive auxiliary agent are included in the paste in a mass ratio of 66:30:4, and a total solid content of the paste is 40% by mass.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: February 8, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventor: Kouji Oono
  • Publication number: 20220020999
    Abstract: A metal adsorbent-carrying carbon material includes: a carbon material; and a metal adsorbent that is supported on the carbon material.
    Type: Application
    Filed: March 25, 2021
    Publication date: January 20, 2022
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Shinichi TANAKA, Tsutomu NOZOE
  • Patent number: 11228035
    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<x<1.1, 0<y?1.0, 0?z<1.0, and 0.9<y+z<1.1.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: January 18, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Satoru Oshitari, Kouji Oono, Tsutomu Nozoe
  • Patent number: 11215754
    Abstract: An optical waveguide element includes an optical waveguide which is formed on one surface of a substrate, an incidence part for light to be incident on the optical waveguide or an emission part for emitting light from the optical waveguide which is disposed in an end portion of the substrate, and a dielectric film which is formed on the optical waveguide of at least one of the incidence part and the emission part, and the vicinity thereof. Regarding the dielectric film, dielectric films including a dielectric film formed of a first material having an index of refraction higher than an index of refraction of the substrate and a dielectric film formed of a second material having an index of refraction lower than the index of refraction of the substrate are alternately laminated.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: January 4, 2022
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Yuji Yamane, Norikazu Miyazaki, Yu Kataoka, Hideki Ichimei
  • Publication number: 20210395103
    Abstract: A titanium oxide powder of the present invention contains a polyhedral-shaped titanium oxide particles, in which each particle of the polyhedral-shaped titanium oxide particles has eight or more faces and an average primary particle diameter is 300 nm or higher and 1000 nm or lower, and a crystallinity is 0.95 or higher.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 23, 2021
    Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Teppei YAKUBO, Naoko ITO
  • Patent number: 11204507
    Abstract: A positioning member for positioning optical components includes a laminated body in which a plurality of thin metal plates is laminated. In the positioning member for positioning the optical components by an upper surface of a first plate forming the laminated body and a side surface of a second plate disposed above the first plate, a portion where two non-parallel side surfaces of the second plate for positioning the optical components cross each other includes a cutout portion including a crossing portion of the side surfaces.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: December 21, 2021
    Assignee: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Tokutaka Hara, Kei Katou
  • Patent number: 11201076
    Abstract: This electrostatic chuck device includes an electrostatic chuck part which has a placement surface on one main surface thereof to place a plate-shaped sample and has an electrode for electrostatic attraction; a temperature controlling base part configured to cool the electrostatic chuck part; and a heater element disposed between the electrostatic chuck part and the temperature controlling base part, in which the electrostatic chuck part and the temperature controlling base part are parts in which a plurality of through holes communicating in a thickness direction are provided, the heater element has a first site formed in a band shape and a second site continuous with the first site, wherein the second site is formed to have in a band shape and a closed ring shape, one through hole of the through holes is disposed on an inner peripheral side of the second site in plan view.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 14, 2021
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventor: Ryuuji Hayahara
  • Patent number: 11194181
    Abstract: An optical modulator including an optical modulation element including an optical waveguide formed on a substrate, and a housing that accommodates the optical modulation element. The housing has a high-thermal resistance portion within at least a part of an optical input and output region. The optical input and output region is an area ranging from an outer surface of a first short side wall to a first end portion of the optical modulation element, and the high-thermal resistance portion having a higher thermal resistance than a portion of the housing other than the optical input and output region.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 7, 2021
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Norikazu Miyazaki, Toru Sugamata
  • Publication number: 20210373408
    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.
    Type: Application
    Filed: August 11, 2021
    Publication date: December 2, 2021
    Applicant: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Kei KATOU, Norikazu MIYAZAKI
  • Patent number: 11189826
    Abstract: An electrode material for a lithium ion secondary battery of the present invention includes an electrode active material represented by LiFexMn1-w-x-yMgyAwPO4 and a carbonaceous film coating a surface of the electrode active material, a particle diameter D10 of secondary particles is 0.5 ?m or more, a particle diameter D90 of the secondary particles is 25 ?m or less, and a ratio (O/I) of an average value of thicknesses I of the carbonaceous film on the surfaces of the primary particles in a range of 0.3 ?m or less from a center of the secondary particle at 300 measurement points to an average value of thicknesses O of the carbonaceous film on the surfaces of the primary particles in a range of 0.3 ?m or less from an outermost surface of the secondary particle at 300 measurement points is 0.85 or more and less than 1.00.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: November 30, 2021
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Satoru Oshitari, Masataka Oyama, Kouji Oono