Patents Assigned to Ohara Inc.
  • Patent number: 11286449
    Abstract: The purpose of the present invention is to provide a cell culture substratum which has excellent resistance to liquid culture media and low cytotoxicity, can achieve a high cell adhesion ratio and a high viability of cultured cells, has excellent thermal stability, and is less likely to absorbs ultraviolet ray.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: March 29, 2022
    Assignees: OHARA, INC., NATIONAL UNIVERSITY CORPORATION NAGAOKA UNIVERSITY OF TECHNOLOGY, NATIONAL INSTITUTE OF TECHNOLOGY
    Inventors: Masahiko Inui, Sunao Chatani, Motohiro Tagaya, Satoshi Motozuka
  • Patent number: 11236010
    Abstract: To provide an optical glass having the optical characteristics of a high refractive index and low dispersion, and moreover, which makes it possible to further reduce devitrification and which can be stably obtained, and a preform and an optical element using the same. The optical glass comprises, expressed in cation % (mol %), 17.0% to 42.0% of P5+, 7.0% to 30.0% of Al3+, more than 0% to 22.0% of Mg2+, more than 0% to 25.0% Ca2+, more than 0% to 30.0% of Sr2+, more than 0% to 35.0% Ba2+, and expressed in anion % (mol %), a content ratio of F? of 37.0 to 64.0%, a content ratio of O2? of 36.0 to 63.0%, a refractive index (nd) of 1.48 to 1.58, and having an Abbe number (vd) of 70 to 88, and a liquidus temperature of 800° C. or less.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 1, 2022
    Assignee: OHARA INC.
    Inventors: Hiroto Nojima, Fumihiro Oguri
  • Patent number: 11104607
    Abstract: A crystallized glass includes a crystallized glass mother material, and, in a surface, a compressive stress layer, wherein the crystallized glass has, for a thickness of 10 mm, a light transmittance of, including reflection loss, 80% at a wavelength in 400 to 669 nm, and has a Vickers hardness [Hv] of 835 to 1300. In the crystallized glass, the crystallized glass mother material contains, in % by weight on an oxide basis, 40.0% to 70.0% of a SiO2 component, 11.0% to 25.0% of an Al2O3 component, 5.0% to 19.0% of a Na2O component, 0% to 9.0% of a K2O component, 1.0% to 18.0% of a MgO component, 0% to 3.0% of a CaO component, and 0.5% to 12.0% of a TiO2 component, and a total content of the SiO2 component, the Al2O3 component, the Na2O component, the K2O component, the MgO component, and the TiO2 component is 90% or more.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: August 31, 2021
    Assignee: OHARA INC.
    Inventors: Toshitaka Yagi, Yutaka Yamashita, Naoyuki Goto
  • Patent number: 11104603
    Abstract: To provide a crystallized glass substrate that is hard and resistant to fracture and that is also resistant to shattering upon breakage. A crystallized glass substrate includes a crystallized glass serving as a base material and a compressive stress layer forming a surface thereof. The crystallized glass contains, in % by weight on an oxide basis, 40.0% to 70.0% of a SiO2 component, 11.0% to 25.0% of an Al2O3 component, 5.0% to 19.0% of a Na2O component, 0% to 9.0% of a K2O component, 1.0% to 18.0% of one or more selected from a MgO component and a ZnO component, 0% to 3.0% of a CaO component, and 0.5% to 12.0% of a TiO2 component. The SiO2 component, the Al2O3 component, the Na2O component, the one or more selected from the MgO component and the ZnO component, and the TiO2 component are present in a total amount of 90% or more. The compressive stress layer has a depth of layer of 40 ?m or more. The compressive stress layer has a surface compressive stress of 750 MPa or more.
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: August 31, 2021
    Assignee: OHARA INC.
    Inventors: Toshitaka Yagi, Yutaka Yamashita, Naoyuki Goto
  • Patent number: 11050080
    Abstract: An electrochemical cell includes an all-solid-state electrode body in which a positive electrode layer and a negative electrode layer are laminated together through a solid electrolyte and an exterior body having a cavity in which the electrode body is stored. The exterior body has a first case and a second case which sandwich the electrode body and a sealing member that defines the cavity together with the first case and the second case by joining the first case and the second. The thermal expansion coefficients of the electrode body, the first case, the second case, and the sealing member are all 10×10?6/° C. or lower.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: June 29, 2021
    Assignees: SEIKO INSTRUMENTS INC., OHARA INC.
    Inventors: Shunji Watanabe, Tsuneaki Tamachi, Kazuhito Ogasa, Ryohei Sato
  • Patent number: 10899658
    Abstract: Provided is a high-strength crystallized glass or substrate having a high visible light transmittance and a good color balance, which is suitable for use in protecting members of portable electronic devices, optical devices and the like. Provided is a crystallized glass comprising, in terms of mol % on an oxide basis: an SiO2 component of 30.0% or more and 70.0% or less, an Al2O3 component of 8.0% or more and 25.0%, an Na2O component of 0% or more and 25.0% or less, an MgO component of 0% or more and 25.0% or less, a ZnO component of 0% or more and 30.0% or less and a TiO2 component of 0% or more and 10.0% or less, the molar ratio [Al2O3/(MgO+ZnO)] having a value of 0.5 or more and 2.0 or less, and comprising one or more selected from RAl2O4, RTi2O5, R2TiO4, R2SiO4, RAl2Si2O8 and R2Al4Si5O18 as a crystal phase.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: January 26, 2021
    Assignee: OHARA INC.
    Inventor: Kiyoyuki Momono
  • Patent number: 10689289
    Abstract: An optical glass having a small partial dispersion ratio (?g,F), while having a refractive index (nd) and Abbe number (?d) within desired ranges, is obtained. The optical glass, in mass %, comprises 10.0 to 70.0% of an SiO2 component, 1.0 to 50.0% of an Nb2O5 component, and 1.0 to 30.0% of an Na2O component, and has a refractive index (nd) of 1.62 to 1.75, an Abbe number (?d) of 30 to 42, and a partial dispersion ratio (?g,F) of no greater than 0.594.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: June 23, 2020
    Assignee: OHARA INC.
    Inventors: Ken Kikkawa, Atsushi Nagaoka
  • Patent number: 10370289
    Abstract: An optical glass having a small partial dispersion ratio (?g,F), while having a refractive index (nd) and Abbe number (?d) within desired ranges, is obtained. The optical glass, in mass %, comprises 10.0 to 70.0% of an SiO2 component, 1.0 to 50.0% of an Nb2O5 component, and 1.0 to 30.0% of an Na2O component, and has a refractive index (nd) of 1.62 to 1.75, an Abbe number (?d) of 30 to 42, and a partial dispersion ratio (?g,F) of no greater than 0.594.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: August 6, 2019
    Assignee: OHARA INC.
    Inventors: Ken Kikkawa, Atsushi Nagaoka
  • Publication number: 20190194056
    Abstract: Provided are an optical glass that has optical properties including a medium refractive index and low dispersion and that has good chemical durability and a low specific gravity, and a preform material and an optical element that use the optical glass. The optical glass contains a SiO2 component: 0% or more and less than 30.0%; 8.0% to 30.0% of an Al2O3 component; less than 20.0% of an RO component (where R represents at least one selected from the group consisting of Zn, Mg, Ca, Sr, and Ba) in terms of a mass sum; and 10.0% to 55.0% of an Ln2O3 component (where Ln represents at least one selected from the group consisting of La, Gd, Y, and Lu) in terms of a mass sum. A mass ratio (SiO2+Al2O3)/B2O3 is 0.3 to 10.0, and the optical glass has a refractive index (nd) of 1.58 or more and 1.80 or less and an Abbe number (?d) of 35 or more and 65 or less.
    Type: Application
    Filed: June 26, 2017
    Publication date: June 27, 2019
    Applicant: OHARA INC.
    Inventor: Kiyoyuki MOMONO
  • Publication number: 20190106352
    Abstract: Provided is glass having a predetermined index of refraction (nd) and Abbe number (?d), high chemical resistance (acid resistance) and a small degree of abrasion. The optical glass contains, in wt %, 10.0-40.0% of a SiO2 component, 15.0-50.0% of a La2O3 component and 5.0% to less than 25.0% of a TiO2 component, has a mass ratio B2O3/SiO2 less than or equal to 1.00, an index of refraction (nd) of 1.78-1.95 and an Abbe number (?d) of 25-45, and chemical resistance (acid resistance) via a powder method that is class 1-3. The optical glass has a degree of abrasion of less than or equal to 200.
    Type: Application
    Filed: March 15, 2017
    Publication date: April 11, 2019
    Applicant: OHARA INC.
    Inventors: Hiroto Nojima, Atsushi Nagaoka, Fumihiro Oguri
  • Patent number: 10249904
    Abstract: The present invention provides an electrochemical cell including: an electrode body; an exterior packaging body in which a plurality of substrates including a first substrate formed from a ceramic material are stacked in the first direction, and a cavity in which the electrode body is accommodated is formed; a first electrode connection wiring that is formed in the exterior packaging body and connects a first electrode layer and an external substrate to each other; and a second electrode connection wiring that is forming in the exterior packaging body and connects a second electrode layer and the external substrate to each other. At least the first electrode connection wiring is formed in the first substrate, and an attachment portion, to which a fastening member configured to mount at least the first electrode connection wiring to the external substrate is attached, is formed in the first substrate.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: April 2, 2019
    Assignees: SEIKO INSTRUMENTS INC., OHARA INC.
    Inventors: Shunji Watanabe, Tsuneaki Tamachi, Yoshimi Kanno, Kazumi Tanaka, Kazuhito Ogasa, Ryohei Sato
  • Patent number: 10189740
    Abstract: An optical glass having a small partial dispersion ratio (?g,F), while having a refractive index (nd) and Abbe number (?d) within desired ranges, is obtained. The optical glass, in mol %, comprises 20.0 to 65.0% of an SiO2 component, 1.0 to 25.0% of an Nb2O5 component, and 1.0 to 35.0% of an Na2O component, and has a refractive index (nd) of 1.62 to 1.75, an Abbe number (?d) of 30 to 42, and a partial dispersion ratio (?g,F) of no greater than 0.594.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: January 29, 2019
    Assignee: OHARA INC.
    Inventors: Ken Kikkawa, Atsushi Nagaoka
  • Patent number: 9954217
    Abstract: An all-solid secondary battery has first electrode layers, and second electrode layers laminated on both sides of the first electrode layer with solid electrolyte layers placed in between, wherein at least one first opening is provided which penetrates the first electrode layer and the solid electrolyte layers adjacent to the first electrode layer, and the second electrode layers present on both sides of the first electrode layer are in contact with each other on the inside of the first opening.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: April 24, 2018
    Assignee: OHARA INC.
    Inventor: Kazuhito Ogasa
  • Patent number: 9941504
    Abstract: The present invention is an all-solid-state electrode body including: a positive electrode via that is formed in a negative electrode connection layer, and connects a plurality of a positive electrode connection layers adjacent to each other in a first direction; a negative electrode via that is formed in the positive electrode connection layer, and connects a plurality of the negative electrode connection layers adjacent to each other in the first direction; a positive electrode current collector layer which is exposed on a first surface that faces one side of the first direction in a stacked body, and is connected to the positive electrode connection layer via the positive electrode via; and a negative electrode current collector layer which is exposed on the first surface in the stacked body, and is connected to the negative electrode connection layer via the negative electrode via.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: April 10, 2018
    Assignees: SEIKO INSTRUMENTS INC., OHARA INC.
    Inventors: Shunji Watanabe, Tsuneaki Tamachi, Yoshimi Kanno, Kazumi Tanaka, Kazuhito Ogasa, Ryohei Sato
  • Patent number: 9908809
    Abstract: Provided is a high-strength crystallized glass or substrate having a high visible light transmittance and a good color balance, which is suitable for use in protecting members of portable electronic devices, optical devices and the like. Provided is a crystallized glass comprising, in terms of mol % on an oxide basis: an SiO2 component of 30.0% or more and 70.0% or less, an Al2O3 component of 8.0% or more and 25.0%, an Na2O component of 0% or more and 25.0% or less, an MgO component of 0% or more and 25.0% or less, a ZnO component of 0% or more and 30.0% or less and a TiO2 component of 0% or more and 10.0% or less, the molar ratio [Al2O3/(MgO+ZnO)] having a value of 0.5 or more and 2.0 or less, and comprising one or more selected from RAl2O4, RTi2O5, R2TiO4, R2SiO4, RAl2Si2O8 and R2Al4Si5O18 as a crystal phase.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 6, 2018
    Assignee: OHARA INC.
    Inventor: Kiyoyuki Momono
  • Patent number: 9580320
    Abstract: A solid electrolyte suitable for use in all solid type lithium ion secondary battery is made by sintering a form, particularly a greensheet, comprising at least lithium ion conductive inorganic substance powder. The solid electrolyte has porosity of 20 vol % or over.
    Type: Grant
    Filed: June 16, 2006
    Date of Patent: February 28, 2017
    Assignee: OHARA INC.
    Inventor: Yasushi Inda
  • Patent number: 9416048
    Abstract: To provide a crystallized glass capable of attaining the same clarification effect as in the composition containing an arsenic component and an antimony component even in the case of having the composition containing no arsenic component, while maintaining various physical properties peculiar to a Li2O—Al2O3—SiO2-based crystallized glass. Disclosed is a crystallized glass which is characterized by containing a predetermined amount of Li2O, Al2O3, and SiO2 components (on an oxide basis), and containing a predetermined amount of BaO component (on an oxide basis) and the like. This crystallized glass preferably contains ?-quartz and/or ?-quartz solid solution as main crystal phase(s), an average crystal particle size of the main crystal phase(s) being preferably within a range between 5 and 200 nm.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: August 16, 2016
    Assignee: OHARA INC.
    Inventor: Ryo Sawai
  • Patent number: 9413033
    Abstract: To provide an all-solid lithium ion secondary battery having a high voltage, a small internal resistance, and a discharge capacity close to a theoretical capacity and being able to be produced at low cost, and therefore, even in the case of collective sintering, generation of an inactive material due to interface reaction at the interface between an electrode active material and a solid electrolyte is reduced. An all-solid lithium ion secondary battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, wherein an electrode active material included in the positive electrode layer is a phosphate having an olivine structure; and a solid electrolyte crystal included in the solid electrolyte layer includes polyphosphoric acid and the content of Li2O is 16 mol % to 25 mol % in terms of mol % on an oxide basis.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: August 9, 2016
    Assignee: OHARA INC.
    Inventor: Kazuhito Ogasa
  • Patent number: 9266780
    Abstract: An all solid state battery having high output performance and a manufacturing method thereof are provided. The all solid state battery of the present invention comprises a negative electrode layer, a positive electrode layer, and a solid electrolyte layer having a lithium ion conductivity. At least one layer of the solid electrolyte, the positive electrode layer, and the negative electrode layer includes a lithium ion conductive crystal and AxByOz (A is one or more selected from the group consisting of Al, Ti, Li, Ge, and Si. B is one or more selected from the group consisting of P, N, and C, wherein 1?X?4, 1?Y?5, and 1?Z?7). The solid electrolyte material to which a preferable sintering additive is added in a predetermined ratio is densified by firing at relatively low temperature in the manufacturing process. The ion conductivity thereof is also high.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: February 23, 2016
    Assignee: OHARA INC.
    Inventor: Kazuhito Ogasa
  • Patent number: 9236075
    Abstract: It is an object of the present invention to provide a crystallized glass which has various properties required for employing the substrate for information recording medium of the next generation, and also has significantly low specific gravity; and a crystallized glass substrate for information recording medium. A crystallized glass containing, as a crystal phase, one or more selected from RAl2O4 and R2TiO4 (wherein R is one or more selected from Mg and Fe), the crystallized glass comprising the components of SiO2 of 50% to 70%, Al2O3 of 10% to 26%, TiO2 of 1 to 15%, MgO of 2.5% to 25%, FeO of 0% to 8%, and ZnO of 0% to less than 2%, expressed in terms of mass percentage on an oxide basis, wherein the value of (Al2O3+MgO)/SiO2 is 0.30 or more and 0.65 or less, and a specific gravity is less than 2.63.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: January 12, 2016
    Assignee: OHARA INC.
    Inventors: Kiyoyuki Momono, Katsuhiko Yamaguchi, Toshitaka Yagi, Naoyuki Goto