Patents Examined by Karl E. Group
  • Patent number: 11521889
    Abstract: The present invention relates to a conductive porous ceramic substrate and a method of manufacturing the same, and more particularly to a conductive porous ceramic substrate, in which a porous ceramic substrate used as a chuck or stage for fixing a thin semiconductor wafer substrate or display substrate through vacuum adsorption is imparted with antistatic performance so as to prevent the generation of static electricity, and a method of manufacturing the same.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 6, 2022
    Assignees: MAX TECH CO., LTD., Tri-N CO., LTD.
    Inventors: Byoung Hak Kim, Seung Woo Baik, June Beom Choi, In Woong Kim, Jong Yeol Jung, Chun Moo Lee, Gyu Ha Kim, In Bum Shin
  • Patent number: 11518707
    Abstract: A glass-ceramic comprising, in weight percent on an oxide basis, of 50 to 70% SiO2, 0 to 20% Al2O3, 12 to 23% MgO, 0 to 4% Li2O, 0 to 10% Na2O, 0 to 10% K2O, 0 to 5% ZrO2, and 2 to 12% F, wherein the predominant crystalline phase of said glass-ceramic is a trisilicic mica, a tetrasilicic mica, or a mica solid solution between trisilicic and tetrasilicic, and wherein the total of Na2O+Li2O is at least 2 wt. %; wherein the glass-ceramic can be ion-exchanged.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: December 6, 2022
    Assignee: CORNING INCORPORATED
    Inventors: George Halsey Beall, John Philip Finkeldey, Charlene Marie Smith
  • Patent number: 11501918
    Abstract: A dielectric ceramic composition includes a barium titanate (BaTiO3)-based base material main ingredient and an accessory ingredient, the accessory ingredient including dysprosium (Dy) and praseodymium (Pr) as first accessory ingredients. A content of the Pr satisfies 0.233 mol?Pr?0.699 mol, based on 100 mol of the barium titanate base material main ingredient.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: November 15, 2022
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jeong Yun Park, Jae Sung Park, Kyung Sik Kim, Ji Hong Jo
  • Patent number: 11498876
    Abstract: The present disclosure provides a ceramic powder having low bulkiness and good dispersibility. In the ceramic powder, the volume ratio of aggregated particles having a particle diameter larger than a reference particle diameter is 35 vol. % or more and the volume ratio when ultrasonic dispersion treatment for 10 minutes at an oscillation frequency of 19.5 kHz and an output power of 10 W is applied is 4 vol. % or less. The reference particle diameter is a particle diameter equivalent to a cumulative 0.1 vol. % diameter from the large diameter side when the ceramic powder is subjected to ultrasonic dispersion treatment for 3 minutes at an oscillation frequency of 19.5 kHz and an output power of 150 W.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: November 15, 2022
    Assignee: FUJIMI INCORPORATED
    Inventors: Naoki Ushida, Yuji Masuda, Hirokazu Kumazawa, Mina Sato
  • Patent number: 11501919
    Abstract: A dielectric composition includes main phases and Ca-RE-Si—O segregation phases. The main phases include a main component expressed by ABO3. “A” includes at least one selected from barium and calcium. “B” includes at least one selected from titanium and zirconium. “RE” represents at least one of rare earth elements. A molar ratio of (Si/Ca) is larger than one. A molar ratio of (Si/RE) is larger than one, provided that the molar ratio of (Si/RE) is a molar ratio of silicon included in the segregation phases to the rare earth elements included therein. An average length of major axes of the segregation phases is 1.30-2.80 times as large as an average particle size of the main phases. An average length of minor axes of the segregation phases is 0.21-0.48 times as large as an average particle size of the main phases.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: November 15, 2022
    Assignee: TDK CORPORATION
    Inventors: Toshihiro Iguchi, Nobuto Morigasaki
  • Patent number: 11492286
    Abstract: The disclosure relates to highly temperable colored glass compositions. The colored glass compositions have high coefficients of thermal expansion and high Young's moduli that advantageously absorb in the ultraviolet and/or blue wavelength ranges. Methods of making such glasses are also provided.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: November 8, 2022
    Assignee: Corning Incorporated
    Inventors: Timothy James Kiczenski, Peter Joseph Lezzi, Michelle Diane Pierson-Stull, Jingshi Wu
  • Patent number: 11492287
    Abstract: The present invention relates to an enamel composition capable of removing sugars as well as poultry oils as contaminants at a low temperature by using a catalyst oxide, to a manufacturing method therefor, and cooking utensils. The present invention provides an enamel composition, a manufacturing method therefor, and cooking utensils, wherein the enamel composition is capable of removing sugars as well as poultry oils as contaminants at a low temperature by comprising: at least one of SiO2, B2O3, Li2O, Na2O, and K2O; and TiO2.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: November 8, 2022
    Assignee: LG Electronics Inc.
    Inventors: Suyeon Choi, Young Seok Kim
  • Patent number: 11485686
    Abstract: A ceramic contains, in mass percent: Si3N4: 20.0 to 60.0%, ZrO2: 25.0 to 70.0%, and one or more oxides selected from MgO, Y2O3, CeO2, CaO, HfO2, TiO2, Al2O3, SiO2, MoO3, CrO, CoO, ZnO, Ga2O3, Ta2O5, NiO, and V2O5: 5.0 to 15.0%. The ceramic has a coefficient of thermal expansion as high as that of silicon and an excellent mechanical strength, allows fine machining with high precision, and prevents particles from being produced.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: November 1, 2022
    Assignee: FERROTEC MATERIAL TECHNOLOGIES CORPORATION
    Inventors: Wataru Yamagishi, Kazumasa Mori, Shunichi Eto
  • Patent number: 11479498
    Abstract: Disclosed herein is a glass composition that includes, based on the total weight of the composition, 52 wt % to 58 wt % of SiO2, 12 wt % to 16 wt % of Al2O3, 16 wt % to 26 wt % of B2O3, greater than 0 wt % and not greater than 2 wt % of MgO, 1 wt % to 6 wt % of CaO, greater than 1 wt % and lower than 5 wt % of TiO2, greater than 0 wt % and not greater than 0.6 wt % of Na2O, 0 wt % to 0.5 wt % of K2O, 0 wt % to 1 wt % of F2, 1 wt % to 5 wt % of ZnO, greater than 0 wt % and not greater than 1 wt % of Fe2O3; and 0.1 wt % to 0.6 wt % of SO3. Also disclosed herein is a glass fiber including the glass composition.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: October 25, 2022
    Assignee: FULLTECH FIBER GLASS CORP.
    Inventors: Wen-Ho Hsu, Bih-Cherng Chern, Chih-Yuan Chang, Yueh-Heng Lee, Wei-Chih Lo
  • Patent number: 11479509
    Abstract: Provided is a MgAl2O4 sintered body, which includes a relative density of the MgAl2O4 sintered body being 90% or higher, and an L* value in a L*a*b* color system being 90 or more. A method of producing a MgAl2O4 sintered body is characterized by that a MgAl2O4 powder is hot pressed at 1150 to 1300° C., and is thereafter subjected to atmospheric sintering at 1350° C. or higher. Embodiments of the present invention address the issue of providing a high density and white MgAl2O4 sintered body and a sputtering target using the sintered body, and a method of producing a MgAl2O4 sintered body.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: October 25, 2022
    Assignee: JX NIPPON MINING & METALS CORPORATION
    Inventor: Satoyasu Narita
  • Patent number: 11479500
    Abstract: An enamel composition, a method for preparing an enamel composition, and a cooking appliance including an enamel composition are provided. The enamel composition may include a base glass frit, and a catalytic glass frit. Further, the enamel composition may include 3 to 20 parts by weight of the catalytic glass frit based on 100 parts by weight of the base glass frit.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: October 25, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Hyeyong Lee, Young Seok Kim
  • Patent number: 11479511
    Abstract: A zirconia sintered body is provided and includes yttria and zirconia, containing yttria by a content ranging from 4.5 mol % or more to 6.5 mol % or less and zirconia as the remainder, the total light transmittance of a 1-mm thick sample measured in compliance with JIS K 7361-1 being 46.5% or higher, the three-point bending strength being 700 MPa or higher, and a ratio of an integrated value for the total light transmittance to an integrated value for the parallel light transmittance of a 1-mm thick sample measured at the measurement wavelength ranging from 400 to 700 nm being 1.3% or less.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 25, 2022
    Assignee: TOSOH CORPORATION
    Inventors: Akiko Ito, Ayako Watanabe, Sho Azechi, Hitoshi Nagayama, Hiroyuki Fujisaki
  • Patent number: 11479514
    Abstract: An overglaze decoration material is provided that can be used to apply to a ceramic product a luster overglaze in which a luster pigment does not dissolve in glass and can thus maintain its luster properties to provide a metallic texture and high surface gloss. The overglaze decoration material in accordance with the present invention contains a frit that has a composition thereof including 40 wt % to 60 wt % of silicon dioxide, 15 wt % to 35 wt % of boron oxide, and 18 wt % or less of one or more alkali metal oxides selected from the group consisting of lithium oxide, sodium oxide and potassium oxide, and a luster pigment for providing a metallic look.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: October 25, 2022
    Assignee: SAGA PREFECTURE
    Inventor: Atsunori Shiraishi
  • Patent number: 11472743
    Abstract: A sintered bead with the following crystal phases, in percentages by mass based on crystal phases: 25%?zircon, or “Z1”, ?94%; 4%?stabilized zirconia+stabilized hafnia, or “Z2”, ?61%; monoclinic zirconia+monoclinic hafnia, or “Z3”?50%; corundum?57%; crystal phases other than Z1, Z2, Z3 and corundum<10%; the following chemical composition, in percentages by mass based on oxides: 33%?ZrO2+HfO2, or “Z4”?83.4%; HfO2?2%; 10.6%?SiO2?34.7%; Al2O3?50%; 0%?Y2O3, or “Z5”; 0%?CeO2, or “Z6”; 0.3%?CeO2+Y2O3?19%, provided that (1) CeO2+3.76*Y2O3?0.128*Z, and (2) CeO2+1.3*Y2O3?0.318*Z, with Z=Z4+Z5+Z6?(0.67*Z1*(Z4+Z5+Z6)/(0.67*Z1+Z2+Z3)); MgO?5%; CaO?2%; oxides other than ZrO2, HfO2, SiO2, Al2O3, MgO, CaO, CeO2 and Y2O3<5.0%.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: October 18, 2022
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventor: Emmanuel Nonnet
  • Patent number: 11472744
    Abstract: Method for the preparation, by means of a heating technique, of a composite material composed of a matrix of at least a first oxide of at least one metal and/or at least one metalloid reinforced by reinforcements in at least a second oxide of at least one metal and/or at least one metalloid, characterised in that the following successive steps are carried out: the reinforcements are placed in at least one liquid precursor of the first oxide of at least one metal and/or at least one metalloid; said reinforcements and the liquid precursor are heated so as to form the first oxide by means of the thermal decomposition of said liquid precursor, and to deposit the first oxide thus formed around the reinforcements and between the reinforcements thus forming the matrix.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: October 18, 2022
    Assignees: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE BORDEAUX
    Inventors: Alexandre Allemand, Patrick David, Pierre Broisson, Clémence Besnard, Laurence Maille
  • Patent number: 11472742
    Abstract: A dielectric composition includes a main phase and a Ca—Si—P—O segregation phase. The main phase includes a main component expressed by ABO3. “A” includes at least one selected from calcium and strontium. “B” includes at least one selected from zirconium, titanium, hafnium, and manganese. The Ca—Si—P—O segregation phase includes at least calcium, silicon, and phosphorus.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: October 18, 2022
    Assignee: TDK CORPORATION
    Inventor: Toshihiro Iguchi
  • Patent number: 11472729
    Abstract: The present invention provides a silicate glass that can reduce a color change in base material zirconia even when simultaneously fired with an unsintered zirconia. The present invention also provides a dental product using same. The present invention relates to a silicate glass comprising: 65.0 to 90.0 mol % SiO2, 4.0 to 15.0 mol % Al2O3, 1.0 to 10.0 mol % K2O, 0.1 to 7.0 mol % Na2O, and 0.01 to 15.0 mol % CaO, the silicate glass being essentially free of B2O3, and satisfying the relation {(number of moles of Al2O3)/(total number of moles of RO+R2O)}?0.70, wherein R in the metal oxide represented by RO represents a metallic element in group 2 or 12 of the periodic table, and R in the metal oxide represented by R2O represents a metallic element in group 1 of the periodic table. The present invention also relates to a composite comprising the silicate glass and a base material formed of a ceramic; a sintered body as a fired product of the composite; and a dental product comprising the sintered body.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: October 18, 2022
    Assignee: KURARAY NORITAKE DENTAL INC.
    Inventors: Kazuhiro Yamada, Toshio Sakakibara, Kiyoko Ban
  • Patent number: 11465929
    Abstract: A flat glass is provided that exhibits high transmittance to electromagnetic radiation in a range of wavelengths from 200 nm to 1500 nm. The transmittance for the flat glass having a thickness of 1 mm is 20% or more at a wavelength of 254 nm, 82% or more at a wavelength of 300 nm, 90% or more at a wavelength of 350 nm, 92% or more at a wavelength of 546 nm, 92.5% or more at a wavelength of 1400 nm, 91.5% or more in a wavelength range from 380 nm to 780 nm, and 92.5% or more in a wavelength range from 780 nm to 1500 nm.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: October 11, 2022
    Assignee: SCHOTT AG
    Inventors: Gerhard Lautenschläger, Andreas Krieg, Andreas Voitsch, Axel Engel, Christian Pitzel, Matthias Schmidt, Thomas Kloss
  • Patent number: 11465941
    Abstract: A ceramic waveguide includes: a doped metal oxide ceramic core layer; and at least one cladding layer comprising the metal oxide surrounding the core layer, such that the core layer includes an erbium dopant and at least one rare earth metal dopant being: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, thulium, ytterbium, lutetium, scandium, or oxides thereof, or at least one non-rare earth metal dopant comprising zirconium or oxides thereof. Also included is a quantum memory including: at least one doped polycrystalline ceramic optical device with the ceramic waveguide and a method of fabricating the ceramic waveguide.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: October 11, 2022
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Sean Matthew Garner, Thomas Dale Ketcham, Daniel Aloysius Nolan, Jun Yang, Haitao Zhang
  • Patent number: 11465940
    Abstract: A refractory object may include a zircon body that may include at least about 0.1 wt. % and not greater than about 5.5 wt. % of an Al2O3 containing component for a total weight of the zircon body. The zircon body may further include at least about 25 wt. % and not greater than about 35 wt. % of a SiO2 component for a total weight of the zircon body.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: October 11, 2022
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Julien P. Fourcade, David J. Lechevalier, Olivier Citti