Patents by Inventor Masayuki Hirose

Masayuki Hirose has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240368024
    Abstract: Provided are a glass composition and a sealing material capable of sealing at a low temperature while having good weather resistance. The glass composition according to the present invention contains, in mol %, 15% to 80% of TeO2, 0.1% to 30% of MoO3+Ag2O, 5% to 40% of V2O5, 0.1% to 35% of CuO, and 0% to 10% of PbO.
    Type: Application
    Filed: July 29, 2022
    Publication date: November 7, 2024
    Applicant: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Shoichi SANO, Masayuki HIROSE, Yoshiro KITAMURA, Toru SHIRAGAMI
  • Publication number: 20240369787
    Abstract: An optical connection structure includes a substrate, an optical integrated circuit, including a reception/emission portion that receives and emits an optical signal, that is electrically connected to the substrate, a microlens array including a first lens disposed at a position corresponding to the reception/emission portion, a ferrule including a fiber hole into which an optical fiber is inserted and a second lens into which an optical signal from the optical fiber is input, and a receptacle that holds the ferrule. The optical integrated circuit and the receptacle are fixed to the microlens array. The second lens faces the first lens when the receptacle holds the ferrule.
    Type: Application
    Filed: April 15, 2022
    Publication date: November 7, 2024
    Applicant: Fujikura Ltd.
    Inventor: Masayuki Hirose
  • Publication number: 20240279107
    Abstract: Provided is a glass for covering a semiconductor element, which has a small environmental load, excellent acid resistance, and a low firing temperature. A glass for covering a semiconductor element containing, by mol %, from 28 to 48% of SiO2, 3% or more and less than 10% of ZnO, from 5 to 25% of B2O3, from 10 to 25% of Al2O3, and from 8 to 22% of MgO+CaO as a glass composition, and containing substantially no lead component.
    Type: Application
    Filed: June 6, 2022
    Publication date: August 22, 2024
    Applicant: NIPPON ELECTRIC GLASS CO., LTD
    Inventor: Masayuki HIROSE
  • Publication number: 20240272378
    Abstract: A ferrule includes: a ferrule main body having: a connection end surface, and fiber holes disposed in a first direction and through which optical fibers are inserted; and a protruding portion protruding from the ferrule main body in the first direction. The connection end surface faces forward in a longitudinal direction of the fiber holes. The protruding portion has a protruding-portion rear surface facing rearward in the longitudinal direction of the fiber holes. A distance in the longitudinal direction between the protruding-portion rear surface and the connection end surface is shorter than a distance in the longitudinal direction between the protruding-portion rear surface and a rear end of the ferrule main body.
    Type: Application
    Filed: February 21, 2022
    Publication date: August 15, 2024
    Applicant: Fujikura Ltd.
    Inventor: Masayuki Hirose
  • Publication number: 20240061191
    Abstract: A manufacturing tool for an optical connector includes: a tool body that includes a concave part; a handle that includes an operating part and a contact part; and a connecting shaft that rotatably connects the handle to the tool body. The handle is rotatable between: a stand-by position, and a push-into position in which a larger portion of the contact part is disposed inside the concave part than in the stand-by position. A direction in which the operating part moves is different from a direction in which the contact part moves.
    Type: Application
    Filed: October 18, 2021
    Publication date: February 22, 2024
    Applicant: Fujikura Ltd.
    Inventor: Masayuki Hirose
  • Publication number: 20230382785
    Abstract: The present invention provides a glass for semiconductor element coating including as a glass composition, in terms of mol %, 55% to 85% of SiO2, 12% to 40% of PbO, 0.1% to 10% of Al2O3, and 0.1% to 6% of GeO2+Ta2O5+Nb2O5+Bi2O3.
    Type: Application
    Filed: September 21, 2021
    Publication date: November 30, 2023
    Inventor: Masayuki HIROSE
  • Publication number: 20230384530
    Abstract: A ferrule, for an optical connector, includes: a main body part formed with a fiber hole configured to accommodate insertion of an optical fiber. The main body part is formed of a material having a coefficient of linear expansion within a range of 1.7×10?5 to 3.0×10?5. A ratio of an inner diameter dh of the fiber hole to an outer diameter df of a cladding of the optical fiber is within a range of 99.632 [%]?dh/df?99.880 [%].
    Type: Application
    Filed: August 16, 2021
    Publication date: November 30, 2023
    Applicant: Fujikura Ltd.
    Inventor: Masayuki Hirose
  • Publication number: 20230365454
    Abstract: Provided is a glass for semiconductor device coating, which is substantially free of an environmental load substance, is excellent in acid resistance, and has a low surface charge density while enabling coating at a firing temperature of 900° C. or less. The glass for semiconductor device coating of the present invention includes, as a glass composition, 40% to 65% of ZnO+SiO2, 7% to 25% of B2O3, 5% to 15% of Al2O3, and 8% to 22% of MgO, and is substantially free of a lead component.
    Type: Application
    Filed: January 26, 2021
    Publication date: November 16, 2023
    Inventor: Masayuki HIROSE
  • Publication number: 20230296852
    Abstract: An optical connector includes: a ferrule that includes a connection end surface, and a fiber hole into which an optical fiber is configured to be inserted up to the connection end surface; a spring that is disposed on a rear side of the ferrule that is opposite to a front side that is a side on which the connection end surface is disposed in a longitudinal direction of the fiber hole; a spring push that sandwiches the spring with the ferrule and through which the optical fiber is inserted in the longitudinal direction; and a housing that accommodates the ferrule and the spring and that is engaged with the spring push such that the ferrule is biased to the front side by the spring. The optical fiber is configured to be inserted into and removed from the spring push.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 21, 2023
    Applicant: Fujikura Ltd.
    Inventor: Masayuki Hirose
  • Publication number: 20230236366
    Abstract: An optical connector includes: a ferrule having a fiber hole into which an optical fiber is inserted and a guide hole into which a guide pin is inserted; a housing that accommodates the ferrule; and a biasing member disposed in the housing and applies to the ferrule a biasing force directed toward a side close to an opening portion of the housing in an axial direction of the guide hole, the biasing force having nonlinear characteristics.
    Type: Application
    Filed: April 21, 2021
    Publication date: July 27, 2023
    Applicant: Fujikura Ltd.
    Inventor: Masayuki Hirose
  • Publication number: 20230023527
    Abstract: A ferrule pin clamp used for a ferrule into which a guide pin is inserted includes: a main body including a pin holder that holds a groove portion of the guide pin. The pin holder includes a pair of arcs. A diameter of the pair of arcs: is smaller than a maximum shaft diameter of the guide pin, and is larger than a shaft diameter of the groove portion of the guide pin.
    Type: Application
    Filed: November 2, 2020
    Publication date: January 26, 2023
    Applicant: FUJIKURA LTD.
    Inventors: Tomoyuki Shinoda, Masayuki Hirose
  • Publication number: 20220373743
    Abstract: An optical fiber pitch conversion jig for converting a pitch among optical fibers by inserting the optical fibers from a first end of the optical fiber pitch conversion jig and making the optical fibers protrude from a second end of the optical fiber pitch conversion jig, the optical fiber pitch conversion jig includes: a groove portion including grooves extending from the first end to the second end, a first linear part on a side closer to the first end and in which a pitch among the grooves is a first pitch, and a pitch change part that is continuous with the first linear part and in which the pitch widens to a second pitch larger than the first pitch. In the pitch change part, at least one of the grooves is curved.
    Type: Application
    Filed: November 9, 2020
    Publication date: November 24, 2022
    Applicant: Fujikura Ltd.
    Inventors: Tomoyuki Shinoda, Masayuki Hirose, Takaaki Ishikawa, Shigeo Takahashi
  • Publication number: 20220319942
    Abstract: The glass for covering a semiconductor element contains: in mol %, as a glass composition, SiO2: 20% to 36%, ZnO: 8% to 40%, B2O3: 10% to 24%, Al2O3: 10% to 20%, and MgO+CaO: 8% to 22%, in which SiO2/ZnO is 0.6 or more and less than 3.3 in terms of a molar ratio, and a lead component is substantially not contained.
    Type: Application
    Filed: September 10, 2020
    Publication date: October 6, 2022
    Applicant: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Masayuki HIROSE
  • Patent number: 10913686
    Abstract: A composite ceramic powder of the present invention includes: a LAS-based ceramic powder having precipitated therein ?-eucryptite or a ?-quartz solid solution as a main crystal; and TiO2 powder and/or ZrO2 powder.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 9, 2021
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Masayuki Hirose, Yoshikatsu Nishikawa, Takuji Oka
  • Patent number: 10865135
    Abstract: The present invention provides a ceramic powder, in which ?-eucryptite or a ?-quartz solid solution is precipitated as a main crystal phase, and which includes TiO2 and/or ZrO2.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 15, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Masayuki Hirose
  • Publication number: 20200381318
    Abstract: A cover glass for a hermetic package includes a sealing material layer on one surface. The sealing material layer satisfies one of the following relationships (1) to (6) between its center line length (LCL) and average width (WA): (1) when LCL is 150 mm or more, WA is 0.20% or more of LCL; (2) when LCL is 100 mm or more and less than 150 mm, WA is 0.30% or more of LCL; (3) when LCL is 75 mm or more and less than 100 mm, WA is 0.35% or more of LCL; (4) when LCL is 50 mm or more and less than 75 mm, WA is 0.40% or more of LCL; (5) when LCL is 25 mm or more and less than 50 mm, WA is 0.60% or more of LCL; and (6) when LCL is less than 25 mm, WA is 0.90% or more of LCL.
    Type: Application
    Filed: March 12, 2018
    Publication date: December 3, 2020
    Inventor: Masayuki HIROSE
  • Patent number: 10807905
    Abstract: Provided is a ceramic powder having precipitated therein ?-eucryptite or a ?-quartz solid solution as a main crystal phase, having an average particle diameter D50 of 20 ?m or less, and having a negative thermal expansion coefficient in a range of from 30° C. to 300° C.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: October 20, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Masayuki Hirose
  • Patent number: 10745316
    Abstract: A glass for sealing of the present invention includes as a glass composition, in terms of mol %, 60% to 80% of SiO2, 8% to 5.8% of B2O3, 12% to 18.7% or Li2O+Na2O+K2O, and 2% to 12% of MgO+CaO+SrO+BaO, and has a molar ratio SiO2/B2O3 of 14 or more.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: August 18, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Masayuki Hirose
  • Patent number: 10710926
    Abstract: A sealing material of the present invention is a sealing material for sealing a metal material, including 70 mass % to 100 mass % of glass powder including alkali silicate glass and 0 mass % to 30 mass % of ceramic powder, and having a linear thermal expansion coefficient in a temperature range of from 30° C. to 380° C. of more than 100×10?7/° C. and 170×10?7/° C. or less.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: July 14, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Yoshikatsu Nishikawa, Masayuki Hirose
  • Publication number: 20200135596
    Abstract: A cover glass of the present invention includes a sealing material layer on one surface, wherein the sealing material layer has a gap formed therein.
    Type: Application
    Filed: March 15, 2018
    Publication date: April 30, 2020
    Inventor: Masayuki HIROSE